Relevant bibliographies by topics / Constant impedance load

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Constant impedance load'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "Constant impedance load"

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Chen, Shiwei, Ying Shen, and Xuhua Xia. "Voltage control strategy of output bus of grid-connected port of energy router based on energy feedback." Journal of Physics: Conference Series 2876, no. 1 (2024): 012058. http://dx.doi.org/10.1088/1742-6596/2876/1/012058.

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Abstract The remaining power conversion ports are equivalent to constant power loads for the grid-connected port of the voltage source. The negative impedance characteristics of the constant power loads will worsen the voltage source characteristics of the grid-connected port and even cause system instability. According to the influence mechanism of constant power load on the DC bus voltage control performance during grid-connection, a new voltage control strategy based on energy feedback is proposed in this paper. The simulation results show that the proposed control strategy can more effecti
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Ramya, Ramya, and Rex Joseph. "A comparative analysis of constant impedance and constant power loads in a distribution network." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 6 (2024): 6111. http://dx.doi.org/10.11591/ijece.v14i6.pp6111-6121.

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Most conventional power systems adopt radial distribution network wherein multiple loads are connected across the distribution transformer. As the number of loads increases, it results in poor voltage profile at the distant receiving end reducing power delivery. This issue worsens with the large-scale influx of electric vehicles and power converter-fed loads, which draw constant power irrespective of supply voltage. Such loads exhibit negative incremental resistance behavior and also have a dynamic response which affects the network in a manner different from constant impedance loads. This pap
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Huang, Shichun, Liang Yu, and Weikang Jiang. "Measurement of loudspeaker mechanical impedance by changing the sound load at the throat of loudspeaker." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 1 (2021): 5457–66. http://dx.doi.org/10.3397/in-2021-3112.

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A loudspeaker is a device that converts electrical energy into acoustic energy by coupling between electrical impedance, mechanical impedance, and radiation impedance. The loudspeaker electro-mechanical-acoustic coupling model provides the experimental feasibility to measure the characteristic parameters. In this paper, an economical and practical measurement method of loudspeaker mechanical impedance is proposed. First, the mathematical relationship between loudspeaker electrical impedance and mechanical impedance is obtained based on the loudspeaker electro-mechanical-acoustic coupling model
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Oh, HyungSeon. "Analytic solution to swing equations in power grids with ZIP load models." PLOS ONE 18, no. 6 (2023): e0286600. http://dx.doi.org/10.1371/journal.pone.0286600.

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Objective This research pioneers a novel approach to obtain a closed-form analytic solution to the nonlinear second order differential swing equation that models power system dynamics. The distinctive element of this study is the integration of a generalized load model known as a ZIP load model (constant impedance Z, constant current I, and constant power P loads). Methods Building on previous work where an analytic solution for the swing equation was derived in a linear system with limited load types, this study introduces two fundamental novelties: 1) the innovative examination and modeling
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Aromataris, Luis, Fabian Rinaudo, Juan Alemany, and Marcos Gelatto. "Induction motor: a new static model." Journal of Electrical Engineering 21, no. 3 (2021): 62–67. http://dx.doi.org/10.59168/zpsi3100.

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Voltage stability in power system is largely determined by the characteristics of the load. In order to obtain reliable results in voltage stability, the load model must be represented as realistically as possible. The issue is even more challenging with static voltage stability techniques, because dynamic loads must be represented by static models. The commonly used static models are constant impedance, constant current, and constant power. A significant part of the load is made up of induction motors that are usually modeled as static constant power loads. Under variations of terminal voltag
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Ravi Kant Yadav, Dibya Bharti, Mala De. "Improving Distribution System Performance using the Optimal Place-ment of Dgs and Reconfiguration for Different Load Models." Communications on Applied Nonlinear Analysis 32, no. 9s (2025): 977–1001. https://doi.org/10.52783/cana.v32.4072.

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The distribution system often gets significant power losses due to voltage drops. To address this issue, various techniques have been proposed in the literature, predominantly focusing on single-load models. This study introduces a methodology aimed to minimizing system losses and enhancing voltage profiles by integrating distributed generation (DG) placement with network reconfiguration (NR) for different load models. The analysis considers constant power (CP), constant current (CI), constant impedance (CZ), and constant impedance, current and power (ZIP) load models under varying load condit
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Battapothula, Gurappa, Chandrasekhar Yammani, and Sydulu Maheswarapu. "Multi-objective optimal planning of fast charging stations by considering various load models in distribution system." International Journal of Emerging Electric Power Systems 22, no. 4 (2021): 439–50. http://dx.doi.org/10.1515/ijeeps-2020-0252.

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Abstract Electric vehicles (EVs) load and its charging methodologies play a significant role in distribution system planning. The inaccurate modelling of EV load may overload the distribution system components, increase in Network Power Loss (NPL) and Maximum Voltage Deviation (MVD). The Constant Power (CP) load model is more popularly used to model both the conventional and EV loads in the distribution system. But the CP load modelling cannot provide accurate information of EV charging process. In this paper, the EV load is modelled as constant Impedance-constant Current-constant Power (ZIP),
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CHAUDHARY, MUHAMMAD AKMAL, JONATHAN LEES, JOHANNES BENEDIKT, and PAUL TASKER. "MULTI-TONE MEASUREMENT SYSTEM WITH THE STATE-OF-THE-ART ACTIVE IF AND RF LOAD-PULL CAPABILITY." Journal of Circuits, Systems and Computers 22, no. 07 (2013): 1350056. http://dx.doi.org/10.1142/s0218126613500564.

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This paper reports a refined multi-tone waveform measurement system for the robust characterization and optimization of nonlinear microwave devices when driven by broadband multi-tone stimuli. This enhanced system has the ability to present specific, constant broadband impedances, not only at baseband (IF) frequencies, but also at RF frequencies, particularly, around the carrier and significant harmonics. This functionality is key in studying the effects of out-of-band impedance termination on both short and long-term electrical memory effects. Achieving such comprehensive impedance control ac
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Sankar, R. S. Ravi, K. K. Deepika, and A. V. Satyanarayana. "Harmonic stability analysis of multi-paralleled 3-phase PV inverters tied to grid." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 2 (2021): 783. http://dx.doi.org/10.11591/ijpeds.v12.i2.pp783-792.

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In this paper the harmonic stability is investigated for multi paralleled three-phase photovoltaic inverters connected to grid. The causes to harmonically stabilize/destabilize the multi-paralleled PV inverters when tied to the grid isanalysed by the impedance-based stability criterion (IBSC). In this paper stability of the system is investigated by varying the grid inductance with constant grid resistance and also by varying load impedance while maintaining grid inductance constant. Stability of the multiple three phase inverters tied to the grid with different grid impedance, inductance valu
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R.S., Ravi Sankar, K. Deepika K., and Satyanarayana A.V. "Harmonic stability analysis of multi-paralleled 3-phase PV inverters tied to grid." International Journal of Power Electronics and Drive System (IJPEDS) 12, no. 2 (2021): 783–92. https://doi.org/10.11591/ijpeds.v12.i2.pp783-792.

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In this paper the harmonic stability is investigated for multi paralleled three-phase photovoltaic inverters connected to grid. The causes to harmonically stabilize/destabilize the multi-paralleled PV inverters when tied to the grid is analysed by the impedance-based stability criterion (IBSC). In this paper stability of the system is investigated by varying the grid inductance with constant grid resistance and also by varying load impedance while maintaining grid inductance constant. Stability of the multiple three phase inverters tied to the grid with different grid impedance, inductance val
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Dissertations / Theses on the topic "Constant impedance load"

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Roth, George J. "Stability Analysis of a Constant Power Load Serviced by a Buck Converter as the Source Impedance Varies." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/17451.

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Approved for public release; distribution is unlimited<br>As the NAVY moves forward with plans to become less dependent on fossil fuels and more dependent on hybrid electric drives and all-electric ships, being aware of the stability issues associated with direct current (DC)-DC and DC-alternating current (AC) power converters and understanding how to solve the issues that come with using them, are very important. The negative input impedance that is observed when using a buck converter servicing a constant power load (CPL) is one of the issues that needs to be understood. Understanding the st
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Parveen, Tania. "Composite load model decomposition : induction motor contribution." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/31301/1/Tania_Parveen_Thesis.pdf.

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In this thesis, a new technique has been developed for determining the composition of a collection of loads including induction motors. The application would be to provide a representation of the dynamic electrical load of Brisbane so that the ability of the power system to survive a given fault can be predicted. Most of the work on load modelling to date has been on post disturbance analysis, not on continuous on-line models for loads. The post disturbance methods are unsuitable for load modelling where the aim is to determine the control action or a safety margin for a specific disturbance.
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Bahadornejad, Momen. "On-line local load measurement based voltage instability prediction." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16187/1/Momen_Bahadornejad_Thesis.pdf.

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Voltage instability is a major concern in operation of power systems and it is well known that voltage instability and collapse have led to blackout or abnormally low voltages in a significant part of the power system. Consequently, tracking the proximity of the power system to an insecure voltage condition has become an important element of any protection and control scheme. The expected time until instability is a critical aspect. There are a few energy management systems including voltage stability analysis function in the real-time environment of control centres, these are based on assu
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Bahadornejad, Momen. "On-line local load measurement based voltage instability prediction." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16187/.

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Voltage instability is a major concern in operation of power systems and it is well known that voltage instability and collapse have led to blackout or abnormally low voltages in a significant part of the power system. Consequently, tracking the proximity of the power system to an insecure voltage condition has become an important element of any protection and control scheme. The expected time until instability is a critical aspect. There are a few energy management systems including voltage stability analysis function in the real-time environment of control centres, these are based on assump
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Book chapters on the topic "Constant impedance load"

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Rajan S., Palanivel, Rajendrakumar M. G., and Baswanth Sreeramaneni. "Rectangular Microstrip Patch Antenna Design for Artificial Intelligence Applications." In Advances in Chemical and Materials Engineering. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-2659-6.ch007.

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At 882 MHz, a simple rectangular microstrip patch antenna was implemented especially for industrial robotic applications. FR4 was the dielectric substrate material chosen with 4.4 as the dielectric constant. The projected antenna has been modeled using the finite element method (FME). Later, the antenna was fabricated and tested with a vector network analyzer. The antenna feed line (transmission line) at various distances from its right edge was investigated for good impedance matching in the resonant frequency band. Finally, to convert antenna load impedance (𝑧𝐿) to a 50𝛺 characteristics impe
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Lum Kin Yun, Lindén Maria, and Tan Tian Swee. "Impedance Matching Wireless Power Transmission System for Biomedical Devices." In Studies in Health Technology and Informatics. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-516-6-225.

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For medical application, the efficiency and transmission distance of the wireless power transfer (WPT) are always the main concern. Research has been showing that the impedance matching is one of the critical factors for dealing with the problem. However, there is not much work performed taking both the source and load sides into consideration. Both sides matching is crucial in achieving an optimum overall performance, and the present work proposes a circuit model analysis for design and implementation. The proposed technique was validated against experiment and software simulation. Result was
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Patel, Dilip Kumar, Deependra Singh, and Bindeshwar Singh. "IMPACT OF DISTRIBUTED GENERATIONS WITH EXTENDED-PLUG-IN HYBRID ELECTRIC VEHICLES." In Futuristic Trends in Electrical Engineering Volume 3 Book 1. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bdee1p7ch1.

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The use of Distributed Generations (DGs) with Extended Plug-in Hybrid Electric Vehicles (Ex-PHEVs) will grow dramatically in the coming years. The relation to the distribution system of DGs with Ex-PHEV will contribute to future challenges. This chapter addresses the multi-tasking Genetic Algorithm optimization of DGs with Ex-PHEV planning in distribution systems for load models for rating and placement determination. From a system viewpoint, this research focuses on reducing total active power loss. The numerous DG kinds are considered from the investigation's point of view. Various kinds of
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"Multimachine Systems with Constant Impedance Loads." In Power System Control and Stability. IEEE, 2009. http://dx.doi.org/10.1109/9780470545577.ch9.

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Conference papers on the topic "Constant impedance load"

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Chaturvedi, Shivam, Shahid Aziz Khan, DucDung Le, Mengqi Wang, and Wencong Su. "Mitigation of negative impedance instabilities in a three phase interleaved boost converter feeding constant power load." In IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2024. https://doi.org/10.1109/iecon55916.2024.10905218.

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Xie, Zhengcong, Junnan Xue, Yuxuan Sun, Wa Kong, and Jing Xia. "A Load Mismatch Resistant Power Amplifier Based on Impedance Constraint Optimization." In 2024 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2024. https://doi.org/10.1109/imws-amp62793.2024.10966802.

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Macdonald, Digby D., and George R. Engelhardt. "After Two Decades of Predicting Crack Growth Rate-What Have We Learned?" In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04673.

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Abstract A review is presented of models that have been developed by the authors for estimating crack growth rate in sensitized Type 304 SS in Boiling Water Reactor (BWR) heat transport circuit (HTC) structural components, with emphasis on the electrochemistry of the process and on determinism (i.e., models whose prediction are constrained explicitly by the natural laws). Intergranular Stress Corrosion Cracking (IGSCC) under normal BWR operating conditions (T = 288°C, pure water) is primarily an electrochemical process that occurs at potentials that are more positive than a critical value of E
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Nikolakakos, Iraklis P., Utkal Ranjan Muduli, Mohamed Shawky El Moursi, Khalifa Al Hosani, S. A. Mohamed, and Tareg Ghaoud. "An Impedance-Based Stability Analysis for Constant Power Load with Line Failure." In 2022 IEEE Power and Energy Conference at Illinois (PECI). IEEE, 2022. http://dx.doi.org/10.1109/peci54197.2022.9744040.

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Karan, Saumya, Kuntal Mandal, and Sumit K. Chattopadhyay. "Virtual Impedance based Lyapunov Controller for DC-DC Converter-fed Constant Power Load." In IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2022. http://dx.doi.org/10.1109/iecon49645.2022.9968632.

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Puspitasari, Ayu Jati, and Endarko. "Study of precision constant current sources with resistor load and a cole-cole load for multi-frequency in electrical impedance tomography." In 2016 International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM). IEEE, 2016. http://dx.doi.org/10.1109/issimm.2016.7803713.

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Petersen, Jan, Sebastian Geier, and Peter Wierach. "Integrated Thin Film Supercapacitor as Multifunctional Sensor System." In ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/smasis2021-68171.

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Abstract Throughout the integration of thin-film supercapacitors into composite structures, it is not only possible to store electric energy, but also to use them as sensor systems for strain detection. This paper describes the integration of thin-film supercapacitors into a glass-fiber composite structure, as well as their analyzation under mechanical load. The results are showing that there is a strong link between the mechanical load and the impedance spectra of the supercapacitor, enabling it to act as strain sensors. To characterize the samples, a four-point bending experiment is used, wh
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Blanchet, Floria, Hind Bousbia, Denis Barataud, Jean-Michel Nebus, and Denis Pache. "The locus of points of constant output VSWR around the load optimal impedance: Evaluation of power transistors robustness." In 2006 67th ARFTG Conference. IEEE, 2006. http://dx.doi.org/10.1109/arftg.2006.4734357.

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Huang, Bo-Wei, Zi-Hao Fu, and Kun-You Lin. "A 28/38 GHz Dual-Band and Dual-Mode CMOS Power Amplifier Using Constant Optimal Load Impedance Method." In 2022 Asia-Pacific Microwave Conference (APMC). IEEE, 2022. http://dx.doi.org/10.23919/apmc55665.2022.9999759.

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Hussain, Mosaddique Nawaz, Rahul Mishra, and Vivek Agarwal. "A self-switched virtual impedance based stabilization method for a droop controlled DC microgrid with Constant Power Loads and input load filters." In 2016 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). IEEE, 2016. http://dx.doi.org/10.1109/pedes.2016.7914287.

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