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Relevant bibliographies by topics / Load compensation

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Academic literature on the topic 'Load compensation'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 June 2025

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Journal articles on the topic "Load compensation"

1

Sun, Qiuye, Jianguo Zhou, Xinrui Liu, and Jun Yang. "A Novel Load-Balancing Method and Device by Intelligent Grouping Compound Switches-Based Capacitor Banks Shunt Compensation." Mathematical Problems in Engineering 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/347361.

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A novel compensator topology is proposed for three-phase unbalanced loads in the distribution networks. The negative and zero sequence compensation networks are proposed using delta-connected and star-connected capacitor banks. The compensation networks are paralleled with the unbalanced load to achieve a perfect balancing of active power and a complete compensation of reactive power of the unbalanced load. Intelligent grouping compound switches are implemented to control the capacitors, where, therefore, each capacitor can be switched between phases or phase and ground. Wireless sensors are also applied to acquire the load quantities. The compensation method proposed is based on symmetrical component theory. In addition, the load compensation based on instantaneous symmetrical component theory with positive sequence online extraction is proposed under unbalanced and distorted source voltages. The proposed load-balancing method and device are applied to Liaoning, Neimenggu, and Jilin provinces. The application results are provided to validate the performance of the proposed compensator topology and compensation method.

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Cheng, Qi Jian, Jing Chen, You Xin Yuan, Xue Song Zhou, and Shi Jie Deng. "Research on a Dynamic Reactive Power Compensation Method of Composite Power Load." Applied Mechanics and Materials 602-605 (August 2014): 2840–43. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.2840.

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A large number of inductive loads need the reactive power, and the amount of the reactive power compensation is different in a state of work. The traditional static reactive power compensator is difficult to meet the needs of the reactive power compensation for the composite load reactive. Therefore, a dynamic reactive power compensation method of the composite power load is proposed in this paper. The following works have been done in the study: principle of dynamic reactive power compensation control method, topological structure of dynamic reactive power compensation device, and implementation of the dynamic reactive power compensation control method.

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Sołjan, Zbigniew. "Using CPC-Based Minimizing Balancing Compensation to Reduce the Budeanu Reactive Currents Described in Extended Budeanu Theory." Energies 18, no. 6 (2025): 1476. https://doi.org/10.3390/en18061476.

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This article presents principles for matching reactance parameters for minimizing balancing compensation, whose mathematical origins come from the Currents’ Physical Components (CPC) theory developed by Czarnecki. The construction of minimizing balancing compensators was considered by applying it to the concept of the extended Budeanu theory. It focuses on the possibility of compensating the Budeanu reactive current, Budeanu complemented reactive current, and both currents at the same time. In addition, the compensator also has the potential to balance the load, that is, to reduce the unbalanced current. In order to precisely illustrate the difference in the effectiveness of compensation and balancing the load, each approach to minimizing balancing compensation has its equivalent in the case of ideal compensation. The analysis of the results achieved is a comparison of the three-phase RMS values of the respective components and the current of the load at the primary load and using three approaches, with each approach divided into ideal compensation and minimizing balancing compensation. For all approaches, calculations and simulations were carried out, in which the numerical values and generated waveforms of each quantity were compiled and analyzed. The Matlab/Simulink R2023a application environment was used as computational and simulation software.

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Chen, Jing, Qi Jian Cheng, You Xin Yuan, and Wei Yang. "Research on the SVC Auto-Compensating Method Based on the Variable Reactor." Applied Mechanics and Materials 321-324 (June 2013): 1414–17. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1414.

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The objective of this work is to research on a SVC auto-compensation method to improve the power factor of the power supply system. Firstly, the principles of the reactive power compensation of FC+TCR are analyzed qualitatively. According to the deficiencies of this compensator, a novel SVC auto-compensating method based on the variable reactor is presented. The reactor controlled by anti-parallel thyristors is namely as the variable reactor in this method. The secondary-side equivalent inductance of the variable reactor is varied by adjusting the SCR firing angles. And then, the equivalent inductance of the variable reactor of the compensator branch is adjusted indirectly for compensating the corresponding reactive power after the working conditions of the load are changed. Therefore, the auto-compensating of this var compensator is realized. The auto-compensating principles of this compensator have been analyzed, and a research on the compensating parameters of this compensator is given emphatically in this paper. Finally, the essential operation steps of this SVC compensation method are given. The research of this paper has laid a theoretical foundation for this compensator in industrial applications.

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Wang, Zhikun, Yanting Zhang, Ruifeng Wang, and Lumeng Huang. "Design and study of new riser dynamic load compensation device test system." Journal of Physics: Conference Series 2029, no. 1 (2021): 012084. http://dx.doi.org/10.1088/1742-6596/2029/1/012084.

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Abstract To ensure the safety of the riser, a kind of new riser dynamic load compensation device is used in this paper, which can effectively reduce the dynamic load of the riser. At the same time, according to a certain similarity criterion, the riser dynamic load compensation test system was designed, including heave simulation system, load simulation system and compensation system. The co-simulation model of the system was established by using ADAMS and Simulink, and the effects of accumulator volume, precharge pressure, piston rod area of compensating hydraulic cylinder and throttle time constant on the system performance were analyzed. The simulation results show that the dynamic load compensation device has a certain compensation effect.

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Geddada, Nagesh, and Mahesh Kumar Mishra. "Improved Load Compensation using Harmonic Compensator in dq0 Current Controller for DSTATCOM." International Journal of Emerging Electric Power Systems 15, no. 6 (2014): 569–89. http://dx.doi.org/10.1515/ijeeps-2014-0059.

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Abstract This paper presents distribution static compensator (DSTATCOM) with dq0 current controller and sine pulse width modulation (SPWM) switching for compensation of unbalanced nonlinear load in distribution system. DSTATCOM, connected in parallel to load at the point of common coupling (PCC), is used for supplying reactive and harmonic components of load current demand. This dq0 current controller is implemented in synchronous reference frame (SRF) rotating at fundamental frequency and consists of harmonic compensation (HC) regulator along with proportional integrator (PI) regulator. HC regulator is realized by number of sinusoidal signal integrators (SSIs) in parallel. The SSI provides high gain for tuned harmonic frequency and helps in minimizing filter current tracking error while compensating for load harmonic currents. Zero-axis controller, which compensates load neutral current and helps in obtaining balanced utility currents, is provided along with d, q controllers. SPWM switching generates inverter gating pulses at constant frequency, which reduces stress levels on VSI switches and simplifies the design of interface filter. Simulation studies of DSTATCOM load compensation with dq0 current controller are carried out in Matlab/Simulink and experimental verification is done using dSpace 1104 with Matlab real-time interface (RTI).

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J.Gowthami*1, K.Purushotham2 S.Imran Khan3. "ANALYSIS OF IUPQC AND ITS APPLICABILTY IN POWER QUALITY COMPENSATION AS WELL AS IN MICROGRID APPLICATIONS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 5 (2018): 99–106. https://doi.org/10.5281/zenodo.1255368.

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This paper presents an improved controller for the dual topology of the unified power quality conditioner (iUPQC) extending its applicability in power quality compensation, as well as in microgrid applications. By using this controller, beyond the conventional UPQC power quality features, including voltage sag/swell compensation, the iUPQC will also provide reactive power support to regulate not only the load-bus voltage but also the voltage at the grid-side bus. In other words, the iUPQC will work as a static synchronous compensator (STATCOM) at the grid side, while providing also the conventional UPQC compensations at the load or microgrid side. Experimental results are provided to verify the new functionality of the equipment.

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Shamshul Haq, S., D. Lenine, and S. V. N. L. Lalitha. "A Fuzzy adaptive hysteresis band controller for three phase four wire UPQC." International Journal of Engineering & Technology 7, no. 2.8 (2018): 652. http://dx.doi.org/10.14419/ijet.v7i2.8.10551.

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Unified Power Quality Compensator (UPQC) is used to protect the sensitive loads in the distribution system from voltage and current disturbances. The compensation capability of UPQC depends on the control strategies used for shunt and series converters. Conventional adaptive hysteresis controller pulse width modulation technique had failed to track exactly during transient conditions and disturbances at load and source side. In paper fuzzy adaptive hysteresis controller is proposed for three phase four wire UPQC for compensating voltage sag/swell, current harmonics, voltage harmonics and neutral current compensation. Fuzzy adaptive hysteresis controller can effectively compensate the power quality problems during the transient conditions. A comparative simulation analysis of proposed and conventional methods are presented in this paper using MATLAB/SIMULINK tool.

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Valeriy, Yagup, Yagup Katerina, Kovalova Yuliia, et al. "Analysis and optimization of the reactive power compensation modes in a power supply system." Eastern-European Journal of Enterprise Technologies 3, no. 8(99) (2019): 13–22. https://doi.org/10.15587/1729-4061.2019.168584.

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The paper reports the study of modes in a single-phase generalized power supply system in terms of improving energy indicators in the system by compensating for the reactive power. We considered three test versions of the power supply system with different ratios of complex load impedance and power lines. We show the drawbacks of the traditional method for calculating the parameters of the compensating device, which provide partial compensation of reactive power consumed only by the load. An analysis of the partial compensation mode indicates that with an increase in the reactivity of the transmission line, the energy indices, which can be obtained as a result of reactive power compensation, deteriorate. Using search engine optimization, it is shown that an increase in the capacity of the compensator is required for full compensation. The method of search engine optimization is implemented in the Mathcad software package using the given-find decision unit. For this purpose, we used the equations of the mathematical model of the power supply system based on component and topological equations. As additional conditions, we used relations that determine the reactive power of the supply source full compensation, as well as the conditions for the physical implementation of the compensating device structure. The optimization variables are the parameters of the mode under study and the parameters of the compensating device. Fragments of texts in the program with numerical solutions are presented, as well as comparative tables of analysis and optimization results of reactive power compensation modes in the studied power supply systems for all variants of their parameters. The quantitative estimates of additional capacity value are given, which is calculated based on the condition for the compensation of reactive power in the transmission line by it. Our study has shown that with an increase in the reactance of the transmission line, full compensation cannot be achieved with the use of shunt compensation and physical interpretation of this phenomenon. It implies that the voltage on the compensating shunt capacitor decreases faster than the reactive power of the transmission line compensated by it increases. It is shown that in the latter case, the full compensation of reactive power can still be achieved by using combined series-shunt compensation.

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Li, Yalong, Wenlu Du, Chen Liang, Yuzhi Xu, and Yaxin Li. "Compensation Mechanism of Controllable Load Shifting during Peak-Down Period Based on Revenue Balance Method." Processes 12, no. 8 (2024): 1692. http://dx.doi.org/10.3390/pr12081692.

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With the large-scale integration of new energy, the obstruction of new energy consumption is prone to occur often during peak-down periods with a low load and high output of new energy. It is urgent to mobilize controllable load shifting through compensation mechanisms to achieve the goals of peak shaving, valley filling, and promotion of new energy consumption. This study constructs a framework of auxiliary service market and compensation mechanism for power shift between new energy power generation enterprises and controllable load enterprises. Secondly, aiming to achieve the principle of revenue balance between new energy power generation enterprises and controllable load enterprises, a quantity and price compensation model based on the particle swarm optimization algorithm is proposed. Then, under the principle of determining the compensation order of different controllable load enterprises through comprehensive evaluation and formulating differentiated compensation prices one by one, a compensation method and process for controllable load enterprises to shift have been established. Finally, through a case analysis, compensation prices for five types of controllable loads were formulated, with values ranging from 99.36 to 197.41 CNY/MWh. This increased the compensation for controllable loads on the basis of the original peak-valley price, verifying the feasibility of the method described in this study.

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Dissertations / Theses on the topic "Load compensation"

1

Satapathy, J. K. "Harmonic response of transmission systems with reactive compensation." Thesis, University of Bradford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380593.

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Sebitosi, A. B. "Load compensation : design of a real time analysis and control device." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/5107.

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Includes bibliographical references.<br>The aim of this thesis is to produce a load compensator for a three-phase system. It should be simple, accurate and affordable. The three-phase load compensator design is based on a more recent definition of power factor. Attempts to establish a universally acceptable definition can be traced as early as 1920 at the 36th Annual convention of the American Institution of Electrical Engineers. Subsequently, a number of definitions have been adopted by different scholars. Each definition can lead to a different compensator solution. This problem, for example, is illustrated by Eammanuel [25].

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Oghorada, Oghenewvogaga. "Modular multilevel cascaded flying capacitor STATCOM for balanced and unbalanced load compensation." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18372/.

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Voltage and current unbalance are major problems in distribution networks, particularly with the integration of distributed generation systems. One way of mitigating these issues is by injecting negative sequence current into the distribution network using a Static Synchronous Compensator (STATCOM) which normally also regulates the voltage and power factor. The benefits of modularity and scalability offered by Modular Multilevel Cascaded Converters (MMCC) make them suitable for STATCOM application. A number of different types of MMCC may be used, classified according to the sub-module circuit topology used. Their performance features and operational ranges for unbalanced load compensation are evaluated and quantified in this research. This thesis investigates the use of both single star and single delta configured five-level Flying Capacitor (FC) converter MMCC based STATCOMs for unbalanced load compensation. A detailed study is carried out to compare this type of sub-module with several other types namely: half bridge, 3-L H-bridge and 3-L FC half bridge, and reveals the one best suited to STATCOM operation. With the choice of 5-L FC H-bridge as the sub-module for STATCOM operation, a detailed investigation is also performed to decide which pulse width modulation technique is the best. This was based on the assessment of total harmonic distortion, power loss, sub-module switch utilization and natural balancing of inner flying capacitors. Two new modulation techniques of swapped-carrier PWM (SC-PWM) along with phase disposed and phase shifted PWM (PS-PWM) are analyzed under these four performance metrics. A novel contribution of this research is the development of a new space vector modulation technique using an overlapping hexagon technique. This space vector strategy offers benefits of eliminating control complexity and improving waveform quality, unlike the case of multilevel space vector technique. The simulation and experimental results show that this method provides superior performance and is applicable for other MMCC sub-modules. Another contribution is the analysis and quantification of operating ranges of both single star and delta MMCCs in rating the cluster dc-link voltage (star) and current (delta) for unbalanced load compensation. A novel method of extending the operating capabilities of both configurations uses a third harmonic injection method. An experimental investigation validates the operating range extension compared to the pure sinusoidal zero sequence voltage and current injection. Also, the superiority of the single delta configured MMCC for unbalanced loading compensation is validated.

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Ronquist, Anton, and Birger Winroth. "Estimation and Compensation of Load-Dependent Position Error in a Hybrid Stepper Motor." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129554.

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Hybrid stepper motors are a common type of electric motor used throughout industry thanks to its low-cost, high torque at low speed and open loop positioning capabilities. However, a closed loop control is often required for industrial applications with high precision requirements. The closed loop control can also be used to lower the power consumption of the motor and ensure that stalls are avoided. It is quite common to utilise a large and costly position encoder or resolver to feedback the position signal to the control logic. This thesis has explored the possibility of using a low-cost position sensor based on Hall elements. Additionally, a sensorless estimation algorithm, using only stator winding measurements, has been investigated both as a competitive alternative and as a possible complement to the position sensor. The thesis work summarises and discusses previous research attempts to adequately measure or estimate and control the hybrid stepper motors position and load angle without using a typical encoder or resolver. Qualitative results have been produced through simulations prior to implementation and experimental testing. The readings from the position sensor is subject to noise, owing to its resolution and construction. The position signal has been successfully filtered, improving its accuracy from 0.56° to 0.25°. The output from the sensorless estimation algorithm is subject to non-linear errors caused by errors in phase voltage measurements and processing of velocity changes. However, the dynamics are reliable at constant speeds and could be used for position control.

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Garcia, Robert John. "THE EFFECTS OF COMPENSATION ON LOAD TRANSIENT RESPONSE IN SWITCHED MODE POWER CONVERTERS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291724.

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Gao, Chao. "Voltage control in distribution networks using on-load tap changer transformers." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607476.

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Voltage is one of the most important parameters for electrical power networks. The Distribution Network Operators (DNOs) have the responsibility to maintain the voltage supplied to consumers within statutory limits. On-Load Tap Changer (OLTC) transformer equipped with Automatic Voltage Control (AVC) relay is the most widely used and effective voltage control device. Due to a variety of advantages of adding Distributed Generation (DG), more and more distributed resources are connected to local distribution networks to solve constraints of networks, reduce the losses from power supply station to consumers. When DG is connected, the direction of power flow can be reversed when the DG output power exceeds the local load. This means that the bidirectional power flow can either be from power grid towards loads, or vice versa. The connection point of DG may suffer overvoltage when the DG is producing a large amount of apparent power. The intermittent nature of renewable energy resources which are most frequently used in DG technology results in uncertainty of distribution network operation. Overall, conventional OLTC voltage control methods need to be changed when DG is connected to distribution networks. The required voltage control needs to address challenges outlined above and new control method need to be formulated to reduce the limitations of DG output restricted by current operational policies by DNOs. The thesis presents an analysis of voltage control using OLTC transformer with DG in distribution networks. The thesis reviews conventional OLTC voltage control schemes and existing policies of DNOs in the UK. An overview of DG technologies is also presented with their operation characteristics based on power output. The impact of DG on OLTC voltage control schemes in distribution networks is simulated and discussed. The effects of different X/R ratio of overhead line and underground cable are also considered. These impacts need to be critically assessed before any new method implementation. The thesis also introduces the new concepts of Smart Grid and Smart Meter in terms of the transition from passive to active distribution networks. The role of Smart Meter and an overview of communication technologies that could be used for voltage control are investigated. The thesis analyses the high latency of an example solution of which cost and availability are considered to demonstrate the real-time voltage control using Smart Metering with existing communication infrastructures cannot be achieved cost-effectively. The thesis provides an advanced compensation-based OLTC voltage control algorithm using Automatic Compensation Voltage Control (ACVC) technique to improve the voltage control performance with DG penetration without communication. The proposed algorithm is simulated under varying load and DG conditions based on Simulink MATLAB to show the robustness of the proposed method. A generic 11kV network in the UK is modelled to evaluate the correct control performance of the advanced voltage control algorithm while increasing the DG capacity.

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Rahman, Md Moshiur. "Design and Implementation of a Web-based Home Energy Management System for Demand Response Applications." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23689.

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The objective of this work is to design and implement an architectural framework for a web-based demand management system that allows an electric utility to reduce system peak load by automatically managing end-use appliances based on homeowners\' preferences. The proposed framework comprises the following components: human user interface, home energy management (HEM) algorithms, web services for demand response communications, selected ZigBee and smart energy profile features for appliance interface, and security aspects for a web-based HEM system. <br />The proposed web-based HEM system allows homeowners to be more aware about their electricity consumption by allowing visualization of their real-time and historical electricity consumption data. The HEM system enables customers to monitor and control their household appliances from anywhere with an Internet connection. It offers a user-friendly and attractive display panel for a homeowner to easily set his/her preferences and comfort settings. <br />An algorithm to autonomously control appliance operation is incorporated in the proposed web-based HEM system, which makes it possible for residential customers to participate in demand response programs. In this work, the algorithm is demonstrated to manage power-intensive appliances in a single home, keeping the total household load within a certain limit while satisfying preset comfort settings and user preferences. Furthermore, an extended version of the algorithm is demonstrated to manage power-intensive appliances for multiple homes within a neighborhood.<br />As one of the demand response (DR)-enabling technologies, the web services-based DR communication has been developed to enable households without smart meters or advanced metering infrastructure (AMI) to participate in a DR event via the HEM system. This implies that an electric utility can send a DR signal via a web services-enabled HEM system, and appropriate appliances can be controlled within each home based on homeowner preferences. The interoperability with other systems, such as utility systems, third-party Home Area Network (HAN) systems, etc., is also taken into account in the design of the proposed web services-based HEM system. That is, it is designed to allow interaction with authorized third-party systems by means of web services, which are collectively an interface for machine-to-machine interaction. <br />This work also designs and implements device organization and interface for end-use appliances utilizing ZigBee Device Profile and Smart Energy Profile. Development of the Home Area Network (HAN) of appliances and the HAN Coordinator has been performed using a ZigBee network. Analyses of security risks for a web-based HEM system and their mitigation strategies have been discussed as well.<br /><br>Master of Science

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Gandhi, Shubham. "Out-of-Loop Compensation Method for Op-Amps Driving Heavy Capacitive Loads." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1543.

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It is well known that real op-amps do not share most of the desirable characteristics of an ideal one, particularly those of gain and output impedance. When presented with a capacitive load, such as a MOSFET or ADC, feedback in an op-amp circuit can quickly become unstable. This thesis studies and characterizes an op-amp’s output impedance and how its interaction with this type of load creates a parasitic pole which leads to instability. Applying ideas from feedback control theory, a model for studying the problem is developed from which a generalized method for compensating the undesirable circumstance is formulated. Even in a zero-input state, many real op-amps driving capacitive loads can experience unforced oscillations. A case study is performed with three commonly used devices. First, the output impedance is determined by its dependence on the unity-gain bandwidth, load capacitance, and oscillation frequency. It is fitted into a second-order feedback control model that allows for an analytical study of the problem. It is then shown that a carefully designed passive network can be introduced between the load and op-amp to obtain a properly damped system free of oscillation and well-behaved. Using a shunt resistor is a known and commonly used method for lowering an op-amp’s output impedance to gain stability. This work considers the converse addition of a series capacitor to instead lower the load capacitance seen by the op-amp, a seemingly complementary method that achieves the same goal. A generalized, composite compensation method is developed that uses both the shunt resistor and series capacitor– a strategy not yet found in literature. Relevant formulas for damping ratio and natural frequency are derived that allow the design of a passive compensation network. Furthermore, tradeoffs between compensation, voltage swing, current consumption, and power usage are considered. An emphasis is placed on comparing simulated versus real circuits to highlight the fact that any problem is much worse in real-life than in a simulation. SPICE models and programs aim to de-idealize certain device characteristics, but often cannot account for environmental conditions and manufacturing variance. Thus, an importance is placed on experimental verification guided by simulations.

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Zafeiropoluos, Andreas. "An MMC-based topology with Dual-Active-Bridge power channels for load balancing in 50 Hz-railway applications." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201656.

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The purpose of this thesis report is to investigate challenges related to railway electrification. Inac-railway systems, trains are most often single-phase loads, which can create significantunbalances in the grid, when fed directly from two adjacent phases. To enhance power quality atthe railway feeding point, one alternative is to design the system such as the power is fed to thecatenary through Static Frequency Converters (SFCs), which can be a costly solution. Anotheroption is to use Static Compensators (STATCOMs) in shunt connections, handling only theunbalanced amount of power, in order to symmetrize the railway load as seen from the grid side.Modular multilevel converters (MMCs) are the state of the art solutions for medium- and highvoltage/power converter applications, such as load balancing and reactive-power compensation.This project will focus on analyzing Modular Multilevel Converter (MMC) topologies to be usedas load balancers in railway systems. However, the specific requirements of this application reveala potential weakness of MMCs. That is the asymmetrical character of the load may require muchhigher device rating in an MMC compared to a conventional converter, due to the symmetrizingcomponents to rebalance the capacitor voltages in the submodules.This project analyzes a reduced MMC-based topology with only two branches in order to meet therailway load-balancing characteristics. This chain-link compensator uses dc-dc converters tofacilitate power channels in order to restore the power imbalance, without overrating thesemiconductors in the main current path.<br>Syftet med detta examensarbete är att studera de svårigheter som elektrifierade järnvägar står inför.När systemet utgörs av växelström kan tågen ses som en enfas last, vilket kan skapa avsevärdaobalanser i nätet då det matas från två intilliggande faser. En alternativ systemdesign för att uppnåen god effekt leverans uppnås då effekten är matad till kontaktledningen genom statiska frekvensomräknare (SFCs), detta kan dock vara en kostsam lösning. Ett annat alternativ är att användastatisk shunt kompensation (STATCOMs) som selektivt kan hantera den obalanserade effekten föratt uppnå symmetri och balans i järnvägslasten, sett från nätets sida.Modulära multiomriktare (MMCs) är en ledande teknik för omriktare till applikationer på mellanochhögspännings nivå, till exempel för lastbalans och reaktiv kompensering. Detta projektanalyserar modulära multiomriktare för lastbalansering i järnvägssystem. Kraven för dennaapplikation leder till en potentiell svaghet i MMCs där den asymmetriska karaktären på lastenkräver högre märkeffekt jämfört med konventionella omriktare. Detta på grund av de komponentersom återskapar symmetri och balans i kondensator spänningarna i submodulerna.Här analyseras en reducerad variant av MMC-baserad topologi med enbart två grenar för att mötakraven på järnvägens lastbalans. Denna kedjelänk-kompensator använder dc-dc omriktare för attstyra effektflödet till lasten vid obalanserad effekt, utan att för den skull överdimensionerahalvledarna i den ordinarie strömvägen.

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Paul, Sushanta. "Optimal capacitor placement for line-loss reduction and importance of voltage reduction during reactive power compensation and its effects on load, line loss, and generation." Diss., Wichita State University, 2013. http://hdl.handle.net/10057/10615.

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A methodology to determine the optimal capacitor locations and sizes to minimize line loss on a radial distribution system was developed in this work. Both the power loss index (PLI)-based approach and the loss sensitivity coefficient-based approach were comparatively studied to determine the optimal capacitor location. The index-based approach combined with a genetic algorithm was used to determine the capacitor sizes. After reactive power compensation voltage-dependent loads consume more power because of the increase in node voltage; therefore, customers pay more for their electricity while utilities experience savings from line-loss reduction. Therefore, a rationale for the necessity of reducing voltage for load demand reduction during reactive power compensation is presented, and the optimal voltage setting at the substation regulator is determined. The joint effect of ambient temperature, price, size, and phase kVAr of the capacitor on load, line loss, and generation is analyzed using a 24 factorial design. How consumer energy consumption, line loss, and generation are affected by voltage reduction is also evaluated. Since bus voltage also depends on line resistance, which varies with ambient temperature, the impact of temperature on power consumption, line loss, and generation is discussed as well. At reduced voltage, variations in line loss need to be analyzed, because losses affect the cost-benefit analysis. A model is derived that explains, at reduced voltage, how line loss varies with the type of load. Also analyzed is the effect of line resistance on line loss for various types of loads. The results of this work will improve the effectiveness and reliability of future voltage-reduction programs. Finally, analyses for negative line loss, higher voltage at the downstream node, and the active and reactive current components of a capacitor are presented in this work.<br>Thesis (Ph.D.)--Wichita State University, College of Engineering, Dept. of Electrical Engineering and Computer Science

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Books on the topic "Load compensation"

1

Services, Sheshunoff Information, ed. S & L executive and director compensation survey, 1990. Sheshunoff Information Services, 1990.

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2

Bond, Elizabeth. Incentive compensation for commercial loan officers: State of the art. R. Morris Associates, 1992.

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Sibikin, Yuriy. Power supply. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1863101.

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The textbook discusses methods for calculating electrical loads, issues of the quality of electrical energy and reactive power compensation, power supply schemes of objects; describes the methodology for determining losses in elements of power supply systems, provides material related to the operation and calculation of electrical networks associated with the process of electric current flow in the wires of external and internal power supply of objects. It is intended for students of training areas and specialties "Electric power engineering and electrical engineering", "Power stations, networks and systems", "Power supply", "Automatic control of electric power systems", "Relay protection and automation of electric power systems" and other electric power training areas and specialties of universities and institutions of secondary vocational education.

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United States. Congress. Senate. Special Committee on Aging, ed. 401(k) pension plans: Loan provisions enhance participation but may affect income security for some : report to the Chairman, Special Committee on Aging, and the Honorable Judd Gregg, U.S. Senate. The Office, 1997.

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United States. Congress. Senate. Special Committee on Aging., ed. 401(k) pension plans: Loan provisions enhance participation but may affect income security for some : report to the Chairman, Special Committee on Aging, and the Honorable Judd Gregg, U.S. Senate. The Office, 1997.

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Great Britain. Colonial Office. Lower Canada: Instructions to Lord Durham for the constitution of Special Council. HMSO, 2001.

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Mary, Chan, ed. The life of the lord keeper North. E. Mellen Press, 1995.

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United States. Congress. Senate. Committee on Veterans' Affairs. Agent Orange compensation, VA home loan guaranty, and health-care facility security legislation: Hearing before the Committee on Veterans' Affairs, United States Senate, One Hundred First Congress, first session, on S. 13 (section 221), S. 404, S. 898, S. 1153, S. 1158, H.R. 1415, and related bills, June 22, 1989. U.S. G.P.O., 1990.

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Great Britain. Colonial Office. Canada: Return to an address of the Honourable the House of Commons, dated 14 May 1846, for "copy of the Governor-General Earl Cathcart's speech to the Legislative Assembly of the Canadas"; copy "of the despatch or despatches referred to in the Governor-General's speech as having been, and of any others since addressed to Her Majesty's Secretary of State for the colonies, remonstrating against certain presumed changes in the Imperial commercial policy, or conveying to Her Majesty's government information respecting the feelings of Her Majesty's Canadian subjects in regard to the commercial changes now under the consideration of the Imperial legislature"; copy "of any petition from the Quebec Board of Trade, addressed to Her Majesty's principal secretary of state for the colonies in the course of the present year, on the subject of apprehended changes in the Imperial tariff affecting the produce of the Canada's (Lord George Bentinck) ... HMSO, 2001.

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Beuschel, Andreas. Load Compensation in Three Phase Power Systems. Diplomarbeiten Agentur diplom.de. ein Imprint der Diplomica, 2003.

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Book chapters on the topic "Load compensation"

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Ghosh, Arindam, and Gerard Ledwich. "Load Compensation using DSTATCOM." In Power Quality Enhancement Using Custom Power Devices. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-1153-3_7.

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Mishra, Mahesh Kumar. "Theory of Fundamental Load Compensation." In Power Quality in Power Distribution Systems. CRC Press, 2023. http://dx.doi.org/10.1201/9781032617305-4.

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Mishra, Mahesh Kumar. "Control Theories for Load Compensation." In Power Quality in Power Distribution Systems. CRC Press, 2023. http://dx.doi.org/10.1201/9781032617305-5.

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Zhang, Yang, and Vigen Arakelian. "Design, Optimization and Control of a Cable-Driven Robotic Suit for Load Carriage." In Gravity Compensation in Robotics. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95750-6_5.

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Yanbing, Ma, and Zhang Zupei. "Temperature Effect and Compensation of Strain Gage Load Cell." In Mechanical Problems in Measuring Force and Mass. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4414-5_35.

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Turowski, Marian, Oliver Neumann, Lisa Mannsperger, et al. "Managing Anomalies in Energy Time Series for Automated Forecasting." In Energy Informatics. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-48649-4_1.

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AbstractThe increasing number of recorded energy time series enables the automated operation of smart grid applications such as load analysis, load forecasting, and load management. However, to perform well, these applications usually require clean data that well represents the typical behavior of the underlying system. Unfortunately, recorded time series often contain anomalies that do not reflect the typical behavior of the system and are, thus, problematic for automated smart grid applications such as automated forecasting. While various anomaly management strategies exist, a rigorous comparison is lacking. Therefore, in the present paper, we introduce and compare three different general strategies for managing anomalies in energy time series forecasting, namely the raw, the detection, and the compensation strategy. We compare these strategies using a representative selection of forecasting methods and real-world data with inserted synthetic anomalies. The comparison shows that applying the compensation strategy is generally beneficial for managing anomalies despite requiring additional computational costs because it mostly outperforms the detection and the raw strategy when the input data contains anomalies.

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Shadangi, Pushpanjali, Sushree Diptimayee Swain, Pravat Kumar Ray, and Gayadhar Panda. "PSO-Based DSTATCOM for Harmonic Compensation Under Different Load Perturbation." In Advances in Sustainability Science and Technology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4175-9_40.

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Dalwadi, Nihal, Dipankar Deb, and Stepan Ozana. "Partial Rotor Failure Compensation for Biplane Quadrotor with Slung Load." In Studies in Systems, Decision and Control. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9744-0_6.

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Le, An Nhuan, Duc-Hung Nguyen, and Minh-Duc Pham. "Compensation of Load Sharing Error in Low Voltage DC Distribution System Using Common Load Regulation Scheme." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8703-0_40.

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Liu, Sihan, Wei Sun, and Ronghai Qu. "A D-Axis Current Reference Compensation Method for Sensorless Control of Induction Motors Under Virtual Voltage Injection Based on Neural Networks." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-4856-6_11.

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Abstract Sensorless control technology for induction motors has been widely applied in various industrial scenarios due to its advantages of low cost and high reliability. However, significant instability can occur in the low-speed generation region. Traditional signal injection methods are not suitable for induction motors with weak anisotropy and may cause torque ripple issues. The virtual voltage injection method can fundamentally resolve the instability in sensorless control of induction motors in the low synchronous speed region without causing torque ripple problems. Nevertheless, this approach also increases the required d-axis current reference for motor control, leading to higher no-load and light-load losses. To address this issue, this paper integrates artificial intelligence algorithms to construct and train a torque estimation network for induction motor sensorless control under virtual voltage injection. Based on the estimated torque from the network, the d-axis current reference is compensated accordingly, allowing it to adapt to load variations, thereby reducing no-load and light-load losses.

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Conference papers on the topic "Load compensation"

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Gao, Lihua, Guangming Zhang, Chao Lu, and Xiaodong Lv. "Variable Load Electric Vehicle Speed Regulation Feedforward Compensation Composite Controller." In 2024 6th International Conference on Energy, Power and Grid (ICEPG). IEEE, 2024. https://doi.org/10.1109/icepg63230.2024.10775809.

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Papadakis, Emmanouil, Markos Sigalas, Michail Vangos, and Panos Trahanias. "The GEM-C controller for Load Compensation in Object Manipulation." In 2024 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2024. http://dx.doi.org/10.1109/icra57147.2024.10611258.

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Venkateswari, R., and S. Sreejith. "Load Compensation using DSTATCOM." In 2019 Innovations in Power and Advanced Computing Technologies (i-PACT). IEEE, 2019. http://dx.doi.org/10.1109/i-pact44901.2019.8960046.

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Souza, W. A., E. V. Liberado, L. C. P. da Silva, H. K. M. Paredes, and F. P. Marafao. "Load analyser using conservative power theory." In 2013 International School on Nonsinusoidal Currents and Compensation (ISNCC). IEEE, 2013. http://dx.doi.org/10.1109/isncc.2013.6604454.

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Mikulović, Jovan, and Tomislav Šekara. "OPTIMALNA KOMPENZACIJA REAKTIVNE SNAGE POTROŠAČA U PRISUSTVU VIŠIH HARMONIKA NAPONA I STRUJA." In 35. Savetovanje Srpskog nacionalnog komiteta Međunarodnog saveta za velike električne mreže. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre35.0967m.

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The paper presents a procedure for optimal compensation of load reactive power in the presence of voltage and current harmonics using capacitor banks and passive filters. Optimal compensation of load reactive power in the presence of voltage and current harmonics requires determination of load reactive power according to the Currents’ Physical Components theory. Compensating the load reactive power by using capacitors when the source voltages contain harmonics increases the percentage of harmonics in the system. In order to avoid such effects when compensating the reactive power, it is necessary to use passive filters. This paper presents a comparative analysis of the results of load reactive power compensation using capacitor banks and passive filters. By comparing the quantities that describe the presence of voltages and current harmonics before and after the reactive power compensation, the effect of reactive power compensation on the power quality was examined.

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Khanh, Nguyen Dinh, and Vladimir E. Kuznetsov. "Adaptive Load Compensation Algorithm Based on Signal Compensation Structure." In 2021 XXIV International Conference on Soft Computing and Measurements (SCM). IEEE, 2021. http://dx.doi.org/10.1109/scm52931.2021.9507131.

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Jovcic, D., and K. Kahle. "Compensation of particle accelerator load using converter controlled pulse compensator." In 2006 IEEE Power Engineering Society General Meeting. IEEE, 2006. http://dx.doi.org/10.1109/pes.2006.1708853.

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Kopulwar, P. S., S. M. Sahare, T. B. Atram, Y. V. Ninghot, V. Ujawane, and S. P. Gawande. "Particle Swarm Optimization based Distribution Static Compensator for load compensation." In 2014 International Conference on Advanced Communication, Control and Computing Technologies (ICACCCT). IEEE, 2014. http://dx.doi.org/10.1109/icaccct.2014.7019470.

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Barnawal, Prakash Ji, and S. M. Tripathi. "Non-linear load compensation using STATCOM." In 2016 International Conference on Emerging Trends in Electrical Electronics & Sustainable Energy Systems (ICETEESES). IEEE, 2016. http://dx.doi.org/10.1109/iceteeses.2016.7581375.

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Singh, Alka, Suman Bhowmick, and Kapil Shukla. "Load compensation with DSTATCOM and BESS." In 2012 IEEE 5th India International Conference on Power Electronics (IICPE). IEEE, 2012. http://dx.doi.org/10.1109/iicpe.2012.6450494.

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Reports on the topic "Load compensation"

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Yao, Yixin, Mingyuan Fan, Arnaud Heckmann, and Corazon Posadas. Transformative Solutions and Green Finance in the People’s Republic of China and Mongolia. Asian Development Bank Institute, 2022. http://dx.doi.org/10.56506/xfvh2542.

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Asia has experienced widespread transformation and growth, accompanied by increased demographic pressure, greater intensification of agricultural production, industrialization, and urbanization. This economic growth has been very resource- and carbon-intensive, while climate change has triggered or exacerbated behaviors and defense mechanisms that have come at the expense of the natural environment. Therefore, we examine and compare three Asian Development Bank (ADB) projects in two member countries of the Central Asia Regional Economic Cooperation: one in the People’s Republic of China (PRC) and two in Mongolia that relate to sustainable green development and use innovative financial mechanisms, and behavior-changing nudges. We provide comparative analyses and aim to demonstrate effective, innovative, and sustainable green finance and green transformation approaches in these two countries to address these pressures. The ADB–PRC loan for the Anhui Huangshan Xin’an River Ecological Protection and Green Development project aims to help Huangshan municipality reduce water pollution in the Xin’an River Basin, which is part of the Yangtze River Economic Belt. The project is piloting innovative green financing mechanisms to reduce rural pollution and complement the ongoing interprovincial eco-compensation scheme while supporting green agroecological businesses through two interventions: the Green Investment Fund and the Green Incentive Mechanism. In Mongolia, ADB and the Government of Mongolia have developed two large-scale transformative projects using integrated design and innovative green financing mechanisms to leverage private sector investment: (i) Aimags and Soums Green Regional Development Investment Program, which aims to promote green urban–rural linkages, green agribusiness development, natural capital, rangeland regeneration, and soil carbon sequestration through the (ii) Ulaanbaatar Green Affordable Housing and Resilient Urban Renewal Project, which aims to transform Ulaanbaatar’s vulnerable and substandard peri-urban areas into low-carbon, resilient eco-districts that provide access to green affordable housing.

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