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Journal articles on the topic 'SIZING OF SVC'

Author: Grafiati

Published: 11 September 2023

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1

Mohd Ali, Nur Zahirah, Ismail Musirin, and Hasmaini Mohamad. "Effect of SVC installation on loss and voltage in power system congestion management." Indonesian Journal of Electrical Engineering and Computer Science 14, no. 1 (2019): 428. http://dx.doi.org/10.11591/ijeecs.v14.i1.pp428-435.

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<span>In this paper, a new hybrid optimization technique is proposed namely Adaptive Embedded Clonal Evolutionary Programming (AECEP). This idea comes from the combination part of the clone in an Artificial Immune System (AIS) and then combined with Evolutionary Programming (EP). This technique was implemented to determine the optimal sizing of Flexible AC Transmission Systems (FACTS) devices. This study focused on the ability of Static Var Compensator (SVC) is used for the optimal operation of the power system as well as in reducing congestion in power system. In order to determine the

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2

Abdullah, Ali Najim, Ahmed Majeed Ghadhban, Hayder Salim Hameed, and Husham Idan Hussein. "Enhancement the stability of power system using optimal location of FACTS devices." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 2 (2020): 648. http://dx.doi.org/10.11591/ijeecs.v18.i2.pp648-655.

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<p><span>This paper proposes a steady-state of the Static Var Compensator (SVC) &amp; Thyristor Controlled Series Capacitor (TCSC) set up for enhancing the damping overall performance and growing the integral clearing time (CCT) of a power network. The indispensable clearing time is carried out through increasing the time fault interval until the gadget loses stability. Increasing the CCT can be contribute to reliability of the safety gadget, decrease the protection machine ranking and cost. In order to attain most enhancement of machine stability via optimizing location, sizin

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Duraisamy, Prasanth, and Arul Ponnusamy. "Power System Performance Improvement by Optimal Placement and Sizing of SVC using Genetic Algorithm." International Journal of Applied Power Engineering (IJAPE) 6, no. 2 (2017): 55. http://dx.doi.org/10.11591/ijape.v6.i2.pp55-62.

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The power system loss minimization becomes more important as the need of power generation is more recent days. The loss minimization improves the voltage profile which improves the loadability of the system. In many types of flexible AC transmission system (FACTS) devices static var compensators (SVC) are cost vise it is affordable and it improves the system performance with lesser size. Here SVC is optimally placed in a test system of 30 bus system. Genetic algorithm is used to find the optimal results.

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Duraisamy, Prasanth, and Arul Ponnusamy. "Power System Performance Improvement by Optimal Placement and Sizing of SVC using Genetic Algorithm." International Journal of Applied Power Engineering (IJAPE) 6, no. 2 (2017): 56. http://dx.doi.org/10.11591/ijape.v6.i2.pp56-63.

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The power system loss minimization becomes more important as the need of power generation is more recent days. The loss minimization improves the voltage profile which improves the loadability of the system. In many types of Flexible AC Transmission System (FACTS) devices Static Var Compensators (SVC) are cost vise it is affordable and it improves the system performance with lesser size. Here SVC is optimally placed in a test system of 30 bus system. Genetic algorithm is used to find the optimal results.

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5

Suyono, Hadi, Rini Nur Hasanah, and Paramita Dwi Putri Pranyata. "Optimization of the Thyristor Controlled Phase Shifting Transformer using PSO Algorithm." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 5472. http://dx.doi.org/10.11591/ijece.v8i6.pp5472-5483.

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The increase of power system demand leads to the change in voltage profile, reliability requirement and system robustness against disturbance. The voltage profile can be improved by providing a source of reactive power through the addition of new power plants, capacitor banks, or implementation of Flexible AC Transmission System (FACTS) devices such as Static VAR Compensator (SVC), Unified Power Flow Control (UPFC), Thyristor Controlled Series Capacitor (TCSC), Thyristor Controlled Phase Shifting Transformer (TCPST), and many others. Determination of optimal location and sizing of device injec

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Santamaria-Henao, Nicolas, Oscar Danilo Montoya, and César Leonardo Trujillo-Rodríguez. "Optimal Siting and Sizing of FACTS in Distribution Networks Using the Black Widow Algorithm." Algorithms 16, no. 5 (2023): 225. http://dx.doi.org/10.3390/a16050225.

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The problem regarding the optimal placement and sizing of different FACTS (flexible alternating current transmission systems) in electrical distribution networks is addressed in this research by applying a master–slave optimization approach. The FACTS analyzed correspond to the unified power flow controller (UPFC), the thyristor-controlled shunt compensator (TCSC, also known as the thyristor switched capacitor, or TSC), and the static var compensator (SVC). The master stage is entrusted with defining the location and size of each FACTS device using hybrid discrete-continuous codification throu

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7

Thasnas, Natakorn, and Apirat Siritaratiwat. "Static Voltage Stability Margin Enhancement Using Shunt Capacitor, SVC and STATCOM." Applied Mechanics and Materials 781 (August 2015): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amm.781.288.

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This paper presents the study of static voltage stability margin enhancement using shunt capacitor, SVC and STATCOM. AC and DC representations of shunt compensation devices are used in the continuation power flow process in static voltage stability study. Various performance measures including PV curves, voltage profiles, and power losses are compared. Placement and sizing techniques of shunt compensation devices are proposed for loading margin enhancement. The study has been carried out on the IEEE 14 bus test system.

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8

Hasma Abdullah, Nor Rul, Mahaletchumi A. P Morgan, Mahfuzah Mustafa, Rosdiyana Samad, and Dwi Pebrianti. "Multi-Objective Evolutionary Programming for Static VAR Compensator (SVC) in Power System Considering Contingencies (N-m)." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 2 (2018): 880. http://dx.doi.org/10.11591/ijpeds.v9.i2.pp880-888.

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<span>Static VAR Compensators (SVCs) is a Flexible Alternating Current Transmission System (FACTS) device that can control the power flow in transmission lines by injecting capacitive or inductive current components at the midpoint of interconnection line or in load areas. This device is capable of minimizing the overall system losses and concurrently improves the voltage stability. A line index, namely <em>SVSI</em> becomes indicator for the placement of SVC and the parameters of SVCs are tuned by using the multi-objective evolutionary programming technique, effectively able

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9

Mohd Ali, N. Z., I. Musirin, and H. Mohamad. "Clonal evolutionary particle swarm optimization for congestion management and compensation scheme in power system." Indonesian Journal of Electrical Engineering and Computer Science 16, no. 2 (2019): 591. http://dx.doi.org/10.11591/ijeecs.v16.i2.pp591-598.

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This paper presents computational intelligence-based technique for congestion management and compensation scheme in power systems. Firstly, a new model termed as Integrated Multilayer Artificial Neural Networks (IMLANNs) is developed to predict congested line and voltage stability index separately. Consequently, a new optimization technique termed as Clonal Evolutionary Particle Swarm Optimization (CEPSO) was developed. CEPSO is initially used to optimize the location and sizing of FACTS devices for compensation scheme. In this study, Static VAR Compensator (SVC) and Thyristor Control Static C

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10

Prasath, R. Arun, M. Vimalraj, M. Riyas Ahamed, and K. Srinivasa Rao. "Power System Loadability Maximization by Optimal Placement of Multiple-Type FACTS Devices Using PSO Based GUI." Advanced Materials Research 984-985 (July 2014): 1286–94. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.1286.

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This paper presents a graphical user interface (GUI) uses Particle Swarm Optimization (PSO), which is used to find the optimal locations and sizing parameters of multi type Flexible AC transmission systems (FACTS) devices in complex power systems. The GUI toolbox, offers user to choose a power system network, PSO settings and the type and number of FACTS devices for the selected network. In this paper, three different FACTS devices are implemented: SVC, TCSC and TCPST. FACTS devices are used to increase the system loadability, by reducing power flow on overloaded lines, transmission line losse

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11

Pană, Adrian, Alexandru Băloi, and Florin Molnar-Matei. "Iterative Method for Determining the Values of the Susceptances of a Balancing Capacitive Compensator." Energies 11, no. 10 (2018): 2742. http://dx.doi.org/10.3390/en11102742.

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To increase the electrical power quality, in the last decades, an intense development in the last decades of high-performance equipment built as advanced power electronics applications, such as the compensators from Switching Power Converter category, has taken place. For all that, Reactive Power Compensators (RPC) based on passive circuit elements, such as Static var Compensators (SVCs), still occupy a wide range of applications in customer and installations of the distribution system installations. The functions of power factor (PF) improvement and load balancing in a three-phase distributio

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M. Kanaan, H., M. EL-Gazaar, and M. A. Mehanna. "OPTIMAL LOCATION AND SIZING OF SVC CONSIDERING SYSTEM LOSSES, VOLTAGE DIVISION AND SYSTEM OVERLOAD." Journal of Al-Azhar University Engineering Sector 15, no. 57 (2020): 1040–51. http://dx.doi.org/10.21608/auej.2020.120371.

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A. HEMA, SEKHAR, and DEVI A. LAKSHMI. "Optimal Sizing and Placement of Advanced SVC in Transmission System by Using Evolutionary Algorithms." i-manager’s Journal on Electrical Engineering 10, no. 3 (2017): 30. http://dx.doi.org/10.26634/jee.10.3.13412.

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Jaramillo, Manuel Dario, Diego Francisco Carrión, and Jorge Paul Muñoz. "A Novel Methodology for Strengthening Stability in Electrical Power Systems by Considering Fast Voltage Stability Index under N − 1 Scenarios." Energies 16, no. 8 (2023): 3396. http://dx.doi.org/10.3390/en16083396.

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An electrical power system (EPS) is subject to unexpected events that might cause the outage of elements such as transformers, generators, and transmission lines. For this reason, the EPS should be able to withstand the failure of one of these elements without changing its operational characteristics; this operativity functionality is called N−1 contingency. This paper proposes a methodology for the optimal location and sizing of a parallel static Var compensator (SVC) in an EPS to reestablish the stability conditions of the system before N−1 contingencies take place. The system’s stability is

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15

Buraimoh, Elutunji, Funso Kehinde Ariyo, Micheal Omoigui, and Innocent Ewaen Davidson. "Investigation of Combined SVC and TCSC versus IPFC in Enhancing Power System Static Security." International Journal of Engineering Research in Africa 40 (December 2018): 119–35. http://dx.doi.org/10.4028/www.scientific.net/jera.40.119.

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Electrical power systems are often required to operate at full loading capacity due to ever increasing demand and transmission line contingencies with limited grid expansion. This results in line overload and operating near system limit, thereby threatening system security. Utilization of existing system can be achieved using Flexible Alternating Current Transmission System (FACTS) devices without violating system limits. This research investigation involves static security assessment of a modelled IEEE 30-bus test system in MATLAB/SIMULINK/PSAT environment. The security status with the incorp

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16

Wang, Lina, Kamel Kerrouche, Abdelkader Mezouar, Alex Van Den Bossche, Azzedine Draou, and Larbi Boumediene. "Feasibility Study of Wind Farm Grid-Connected Project in Algeria under Grid Fault Conditions Using D-Facts Devices." Applied Sciences 8, no. 11 (2018): 2250. http://dx.doi.org/10.3390/app8112250.

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The use of renewable energy such as wind power is one of the most affordable solutions to meet the basic demand for electricity because it is the cleanest and most efficient resource. In Algeria, the highland region has considerable wind potential. However, the electrical power system located is this region is generally not powerful enough to solve the problems of voltage instability during grid fault conditions. These problems can make the connection with the eventual installation of a wind farm very difficult and inefficient. Therefore, a wind farm project in this region may require dynamic

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17

Nadeem, Muhammad, Kashif Imran, Abraiz Khattak, et al. "Optimal Placement, Sizing and Coordination of FACTS Devices in Transmission Network Using Whale Optimization Algorithm." Energies 13, no. 3 (2020): 753. http://dx.doi.org/10.3390/en13030753.

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Flexible AC Transmission Systems (FACTS) play an important role in minimizing power losses and voltage deviations while increasing the real power transfer capacity of transmission lines. The extent to which these devices can provide benefits to the transmission network depend on their optimal location and sizing. However, finding appropriate locations and sizes of these devices in an electrical network is difficult since it is a nonlinear problem. This paper proposes a technique for the optimal placement and sizing of FACTS, namely the Thyristor-Controlled Series Compensators (TCSCs), Shunt VA

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18

Mangaiyarkarasi, S. P., and T. Sree Renga Raja. "PSO Based Optimal Location and Sizing of SVC for Novel Multiobjective Voltage Stability Analysis during N – 2 Line Contingency." Archives of Electrical Engineering 63, no. 4 (2014): 535–50. http://dx.doi.org/10.2478/aee-2014-0037.

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Abstract In this paper voltage stability is analysed based not only on the voltage deviations from the nominal values but also on the number of limit violating buses and severity of voltage limit violations. The expression of the actual state of the system as a numerical index like severity, aids the system operator in taking better security related decisions at control centres both during a period of contingency and also at a highly stressed operating condition. In contrary to conventional N – 1 contingency analysis, Northern Electric Reliability Council (NERC) recommends N – 2 line contingen

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19

Mohamed, Amal Amin, Salah Kamel, Mohamed H. Hassan, Mohamed I. Mosaad, and Mansour Aljohani. "Optimal Power Flow Analysis Based on Hybrid Gradient-Based Optimizer with Moth–Flame Optimization Algorithm Considering Optimal Placement and Sizing of FACTS/Wind Power." Mathematics 10, no. 3 (2022): 361. http://dx.doi.org/10.3390/math10030361.

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Optimal power flow (OPF) is one of the most significant electric power network control and management issues. Adding unreliable and intermittent renewable energy sources to the electrical grid increase and complicates the OPF issue, which calls for using modern optimization techniques to solve this issue. This work presents the optimal location and size of some FACTS devices in a hybrid power system containing stochastic wind and traditional thermal power plants considering OPF. The FACTS devices used are thyristor-controlled series compensator (TCSC), thyristor-controlled phase shifter (TCPS)

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20

Merah, Hana, Abdelmalek Gacem, Djilani Ben Attous, Abderezak Lashab, Francisco Jurado, and Mariam A. Sameh. "Sizing and Sitting of Static VAR Compensator (SVC) Using Hybrid Optimization of Combined Cuckoo Search (CS) and Antlion Optimization (ALO) Algorithms." Energies 15, no. 13 (2022): 4852. http://dx.doi.org/10.3390/en15134852.

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Worldwide, due to the abrupt growth of population, the load demand has been rising dramatically in the last few years. This led to an increase in branch overloads, voltage deviations, and power losses. These problems may result in line outages or the occurrence of blackouts. Flexible AC transmission system (FACTS) devices can be installed in the power system to ensure increased power flow capability and flexible voltage control to address these issues. In this paper, one of the most used FACTS is utilised. It is called Static VAR Compensator (SVC). This controller is one of the most commonly u

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21

Moustafa, Ghareeb, Mostafa Elshahed, Ahmed R. Ginidi, Abdullah M. Shaheen, and Hany S. E. Mansour. "A Gradient-Based Optimizer with a Crossover Operator for Distribution Static VAR Compensator (D-SVC) Sizing and Placement in Electrical Systems." Mathematics 11, no. 5 (2023): 1077. http://dx.doi.org/10.3390/math11051077.

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A gradient-based optimizer (GBO) is a recently inspired meta-heuristic technique centered on Newton’s gradient-based approach. In this paper, an advanced developed version of the GBO is merged with a crossover operator (GBOC) to enhance the diversity of the created solutions. The merged crossover operator causes the solutions in the next generation to be more random. The proposed GBOC maintains the original Gradient Search Rule (GSR) and Local Escaping Operator (LEO). The GSR directs the search to potential areas and aids in its convergence to the optimal answer, while the LEO aids the searchi

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22

Rao, B. Venkateswara, and G. V. Nagesh Kumar. "A Comparative Study of BAT and Firefly Algorithms for Optimal Placement and Sizing of Static VAR Compensator for Enhancement of Voltage Stability." International Journal of Energy Optimization and Engineering 4, no. 1 (2015): 68–84. http://dx.doi.org/10.4018/ijeoe.2015010105.

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Modern electric power utilities are facing many challenges due to increasing power demand but the growth of power generation and transmission has been limited due to limited resources, environmental restrictions and right-of-way problems. These problems can be minimized by installing Flexible Alternating Current Transmission System (FACTS) devices in modern electric utilities to optimize the existing transmission system. Most effective use of the FACTS devices depend on the fact, how these devices are placed in the power system, i.e. the location and size. An optimal location and size of FACTS

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23

Savić, Aleksandar, and Željko Đurišić. "Optimal sizing and location of SVC devices for improvement of voltage profile in distribution network with dispersed photovoltaic and wind power plants." Applied Energy 134 (December 2014): 114–24. http://dx.doi.org/10.1016/j.apenergy.2014.08.014.

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24

Gao, Yang, Changhong Liu, Yuan Liang, Sadegh Kouhestani Hamed, Fuwei Wang, and Bo Bi. "Minimizing Energy Consumption and Powertrain Cost of Fuel Cell Hybrid Vehicles with Consideration of Different Driving Cycles and SOC Ranges." Energies 15, no. 17 (2022): 6167. http://dx.doi.org/10.3390/en15176167.

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Hydrogen consumption is an important performance indicator of fuel cell hybrid vehicles (FCHVs). Previous studies have investigated fuel consumption minimization both under different driving cycles and using various power management strategies. However, different constrains on battery state of charge (SOC) ranges can also affect fuel consumption dramatically. In this study, we develop a power-source sizing model based on the Pontryagin’s Minimum Principle (PMP) to minimize the fuel consumption of FCHVs, considering different driving cycles (i.e., FTP-72 and US06) and SOC ranges (conservative 5

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25

MONDA, Tomoko, and Satoshi SOMIYA. "A Study of Sizing in SMC (2nd Report, Effect of Sizing on Strength)." Transactions of the Japan Society of Mechanical Engineers Series A 71, no. 703 (2005): 551–58. http://dx.doi.org/10.1299/kikaia.71.551.

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26

Cai, Wenlu, Cherdpong Jomdecha, Yingsong Zhao, Li Wang, Shejuan Xie, and Zhenmao Chen. "Quantitative evaluation of electrical conductivity inside stress corrosion crack with electromagnetic NDE methods." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2182 (2020): 20190589. http://dx.doi.org/10.1098/rsta.2019.0589.

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This paper presents a comparison of studies on the local distributed electrical conductivity in stress corrosion crack (SCC) from signals of eddy current testing (ECT) and direct current potential drop (DCPD) aiming to improve SCC sizing accuracy when using electromagnetic non-destructive testing (NDT) methods. Experimental setups of ECT and DCPD were established, respectively, to collect measurement signals due to artificial SCCs in a plate of austenitic stainless steel. The local conductivity in the SCC region was reconstructed from the feature parameters extracted from the measured ECT and

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27

Kumar, Anish S., M. Pawan Kumar, Srinivasan Murali, V. Kamakoti, Luca Benini, and Giovanni De Micheli. "A Buffer-Sizing Algorithm for Network-on-Chips with Multiple Voltage-Frequency Islands." Journal of Electrical and Computer Engineering 2012 (2012): 1–12. http://dx.doi.org/10.1155/2012/537286.

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Buffers in on-chip networks constitute a significant proportion of the power consumption and area of the interconnect, and hence reducing them is an important problem. Application-specific designs have nonuniform network utilization, thereby requiring a buffer-sizing approach that tackles the nonuniformity. Also, congestion effects that occur during network operation need to be captured when sizing the buffers. Many NoCs are designed to operate in multiple voltage/frequency islands, with interisland communication taking place through frequency converters. To this end, we propose a two-phase al

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Liu, Kenan, Bugong Sun, Xiaoyang Gao, et al. "Optimal Sizing of the Stand-Alone Photovoltaic System for a Solar-Powered Translational Sprinkler Irrigation Machine considering the Loss of Power Supply Probability." Mathematical Problems in Engineering 2022 (January 19, 2022): 1–10. http://dx.doi.org/10.1155/2022/6133969.

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The translational sprinkler irrigation machine is widely used because of its high degree of automation, less manual investment, and convenient movement. However, when using the sprinkler irrigation machine, the power supply is difficult to be guaranteed in some remote power shortage areas. Solar energy has become one of the best choices for the power source of sprinkler irrigation machines. An important issue is the optimal sizing of the stand-alone photovoltaic system for a solar-powered translational sprinkler irrigation machine. This work conducts the optimal sizing of the stand-alone photo

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29

Azeem, Fawad, Ashfaq Ahmad, Taimoor Muzaffar Gondal, et al. "Load Management and Optimal Sizing of Special-Purpose Microgrids Using Two Stage PSO-Fuzzy Based Hybrid Approach." Energies 15, no. 17 (2022): 6465. http://dx.doi.org/10.3390/en15176465.

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The sizing of microgrids depends on the type of load and its operational hours. The significance of understanding the load operational characteristics in special purpose islanded microgrids is much needed for economic system sizing. The load operation of special-purpose microgrids often consumes high power for a short duration and remains idle most of the time, thus reducing the load factor. The inclusion of such loads in microgrid sizing causes huge capital costs making islanded microgrids an unfeasible solution. The islanded microgrid under study is an agricultural microgrid in a village hav

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30

Milićević, Stefan, and Ivan Blagojević. "Component sizing and energy management for a series hybrid electric tracked vehicle." Vojnotehnicki glasnik 70, no. 4 (2022): 877–96. http://dx.doi.org/10.5937/vojtehg70-39762.

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Introduction/purpose: The paper presents a systematic approach to the development of a series hybrid electric tracked vehicle (HETV) including powertrain sizing and adequate energy management strategy (EMS) selection. Methods: Powertrain elements were sized considering key performance requirements. Three energy management strategies were proposed: Thermostat Control Strategy (TCS), Power Follower Control Strategy (PFCS), and Optimal Power Source Strategy (OPSS). The evaluation of the powertrain configuration and the three proposed EMSs was performed in the Simulink environment using a driving

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Aleid, L., and P. Pilidis. "Variable cycle jet engines for a Mach 2·7 supersonic civil transport." Aeronautical Journal 102, no. 1011 (1998): 31–36. http://dx.doi.org/10.1017/s0001924000065714.

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AbstractThe aim of the work outlined in this paper is to compare three different variable cycle jet engine concepts for future SSTs. These engines are: the turbofan-turbojet, the mid-tandem fan engine and the double bypass engine. The comparison is carried out on the basis of unin-stalled and installed performance, handling and sizing issues.This preliminary analysis compares SFC, size, variable geometry and cycle changes for each engine. The installed performance was estimated by calculating the air friction, the pre-entry and the afterbody drags, together with the wave drag due to the shock

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Wu, De Hui, Zhong Yuan Zhang, Zhen Liang Liu, and Xiao Hao Xia. "3-D Simulation of Remote Field Eddy Current Detection for Stress Corrosion Cracks in Pipeline." Advanced Materials Research 760-762 (September 2013): 1154–58. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.1154.

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Three-dimensional (3-D)finite element simulation models are conducted to simulate the in-serviceinspection of the axial stress corrosion cracking (SCC) in ferromagneticpipeline using remote field eddy current (RFEC) probes. In this paper, atypical remote field eddy current probe which is internal to and coaxial withthe pipe is firstly introduced. Then a 3-D finite element simulation model isestablished in ANSYS to analyze the detection of RFEC technology. Finally theRFEC signals are observed when changing the geometric parameters, and thedefinite influences of crack size on the amplitude and p

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Li, Xiu Qian, Hai Peng Qiu, Jian Jiao, Jing Hua Luo, and Yu Wang. "Effect of Interfacial Treatment Process on the Microstructure and Properties of C_f/SiC Ceramic Matrix Composites." Key Engineering Materials 519 (July 2012): 277–80. http://dx.doi.org/10.4028/www.scientific.net/kem.519.277.

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Abstract. This paper investigated the Cf/SiC ceramic matrix composites. By utilizing different interfacial treatment processes to prepare carbon-fiber preform, the preform was then densified by infiltration and pyrolysis(PIP) with polycarbosilan/xylene solution as precursor, and the Cf/SiC ceramic matrix composite specimens were fabricated. Mechanical tests such as bending test and fracture toughness were performed for Cf/SiC samples. The results show that the interfacial bonding strength in the sample with high-temperature treatment process was improved due to removing surface sizing. The sam

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IUCHI, Keiji, and Satoshi SOMIYA. "The effect of sizing on fatigue residual strength on SMC." Proceedings of the JSME annual meeting 2000.1 (2000): 573–74. http://dx.doi.org/10.1299/jsmemecjo.2000.1.0_573.

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Sharma, Sidharth, Anna Engelmann, Admela Jukan, and Ashwin Gumaste. "VNF Availability and SFC Sizing Model for Service Provider Networks." IEEE Access 8 (2020): 119768–84. http://dx.doi.org/10.1109/access.2020.3005287.

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Alizadeh, Seyed Morteza, Sakineh Sadeghipour, Cagil Ozansoy, and Akhtar Kalam. "Developing a Mathematical Model for Wind Power Plant Siting and Sizing in Distribution Networks." Energies 13, no. 13 (2020): 3485. http://dx.doi.org/10.3390/en13133485.

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Wind Power Plants (WPPs) are generally located in remote areas with weak distribution connections. Hence, the value of Short Circuit Capacity (SCC), WPP size and the short circuit impedance angle ratio (X/R) are all very critical in the voltage stability of a distribution system connected WPP. This paper presents a new voltage stability model based on the mathematical relations between voltage, the level of wind power penetration, SCC and X/R at a given Point of Common Coupling (PCC) of a distribution network connected WPP. The proposed model introduces six equations based on the SCC and X/R v

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Mejía-Giraldo, Diego, Gregorio Velásquez-Gomez, Nicolás Muñoz-Galeano, Juan Cano-Quintero, and Santiago Lemos-Cano. "A BESS Sizing Strategy for Primary Frequency Regulation Support of Solar Photovoltaic Plants." Energies 12, no. 2 (2019): 317. http://dx.doi.org/10.3390/en12020317.

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This paper proposes a strategy for sizing a battery energy storage system (BESS) that supports primary frequency regulation (PFR) service of solar photo-voltaic plants. The strategy is composed of an optimization model and a performance assessment algorithm. The optimization model includes not only investment costs, but also a novel penalty function depending on the state of charge (SoC). This function avoids the existence of a potential inappropriate SoCtrajectory during BESS operation that could impede the supply of PFR service. The performance assessment algorithm, fed by the optimization m

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IUCHI, Keiji, and Satoshi SOMIYA. "K-0930 Influence amount of sizing for strand-shape in SMC." Proceedings of the JSME annual meeting V.01.1 (2001): 93–94. http://dx.doi.org/10.1299/jsmemecjo.v.01.1.0_93.

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Nguyen-Huu, Thien-An, Van Thang Nguyen, Kyeon Hur, and Jae Woong Shim. "Coordinated Control of a Hybrid Energy Storage System for Improving the Capability of Frequency Regulation and State-of-Charge Management." Energies 13, no. 23 (2020): 6304. http://dx.doi.org/10.3390/en13236304.

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The paper proposes a coordinated operation method of two independent storages for managing state-of-charge (SOC) and for providing ancillary service concerning frequency regulation (FR); furthermore, this article also introduces the power allocation scheme between two storages in consideration of the coverage of the frequency band for each storage along with the SOC management scheme of the supercapacitor and battery. We also provide a guideline for the storage sizing on the basis of the smoothing time constant. Additionally, we verify the advantage of the HESS in extending the lifetime of the

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Kumar, Chandan, Rongwu Zhu, Giampaolo Buticchi, and Marco Liserre. "Sizing and SOC Management of a Smart-Transformer-Based Energy Storage System." IEEE Transactions on Industrial Electronics 65, no. 8 (2018): 6709–18. http://dx.doi.org/10.1109/tie.2017.2784389.

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Li, Zongjian, Jun Wang, Bing Ji, and Z. John Shen. "Power Loss Model and Device Sizing Optimization of Si/SiC Hybrid Switches." IEEE Transactions on Power Electronics 35, no. 8 (2020): 8512–23. http://dx.doi.org/10.1109/tpel.2019.2954288.

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ABE, Shihomi, and Wataru NAKAO. "J0405-5-4 Increase in speed of self-crack healing ofAl_2O_3/SiC composite by SiC nano sizing." Proceedings of the JSME annual meeting 2009.6 (2009): 399–400. http://dx.doi.org/10.1299/jsmemecjo.2009.6.0_399.

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Espinasse, Benjamin, Manali Joglekar, Giancarlo Valiente, and Gowthami M. Arepally. "Novel Techniques for Measurement of Variable Sized PF4/H Complexes." Blood 120, no. 21 (2012): 2204. http://dx.doi.org/10.1182/blood.v120.21.2204.2204.

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Abstract Abstract 2204 Electrostatic interactions between Platelet factor 4 (PF4), a cationic protein, and heparin, an anionic carbohydrate result in the formation of ultra-large complexes (ULCs) that are immunogenic in mice (Suvarna, Blood 2007) and contribute to the immune pathogenesis of Heparin-induced thrombocytopenia (HIT). Previous studies (Rauova, Blood 2005; Greinacher, Arterioscler Thromb Vasc Biol, 2006) have shown that the size of ULCs is determined by the concentration and the molar ratios of PF4:H (PHRs) of each compound. Size determination of PF4/H complexes has been problematic

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V, Shreya. "Comparative Study on SOC Estimation Techniques for Optimal Battery Sizing for Hybrid Vehicles." International Journal on Recent and Innovation Trends in Computing and Communication 3, no. 4 (2015): 1957–63. http://dx.doi.org/10.17762/ijritcc2321-8169.150444.

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Comte, E., D. Merhi, V. Michaud, and J. A. E. Månson. "Void formation and transport during SMC manufacturing: Effect of the glass fiber sizing." Polymer Composites 27, no. 3 (2006): 289–98. http://dx.doi.org/10.1002/pc.20193.

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Fan, Fulin, Giorgio Zorzi, David Campos-Gaona, et al. "Sizing and Coordination Strategies of Battery Energy Storage System Co-Located with Wind Farm: The UK Perspective." Energies 14, no. 5 (2021): 1439. http://dx.doi.org/10.3390/en14051439.

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The rapid development and growth of battery storage have heightened an interest in the co-location of battery energy storage systems (BESS) with renewable energy projects which enables the stacking of multiple revenue streams while reducing connection charges of BESS. To help wind energy industries better understand the coordinated operation of BESS and wind farms and its associated profits, this paper develops a simulation model to implement a number of coordination strategies where the BESS supplies enhanced frequency response (EFR) service and enables the time shift of wind generation based

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Worighi, Imane, Thomas Geury, Mohamed El Baghdadi, Joeri Van Mierlo, Omar Hegazy, and Abdelilah Maach. "Optimal Design of Hybrid PV-Battery System in Residential Buildings: End-User Economics, and PV Penetration." Applied Sciences 9, no. 5 (2019): 1022. http://dx.doi.org/10.3390/app9051022.

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This paper proposes an optimal design for hybrid grid-connected Photovoltaic (PV) Battery Energy Storage Systems (BESSs). A smart grid consisting of PV generation units, stationary Energy Storage Systems (ESSs), and domestic loads develops a multi-objective optimization algorithm. The optimization aims at minimizing the Total Cost of Ownership (TCO) and the Voltage Deviation (VD) while considering the direct and indirect costs for the prosumer, and the system stability with regard to intermittent PV generation. The optimal solution for the optimization of the PV-battery system sizing with rega

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Ahmad, Husam, Jonas Stiller, Erik Päßler, Daisy Nestler, Guntram Wagner, and Lothar Kroll. "Influence of Initial Fibre Length and Content Used in the Injection Moulding of CFRP on the Properties of C/C and C/C-SiC Composites." Key Engineering Materials 809 (June 2019): 171–79. http://dx.doi.org/10.4028/www.scientific.net/kem.809.171.

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The production of C/C-SiC composites comprises a three-stage process: forming (CFRP-composite), pyrolysis (C/C-composite) and liquid silicon infiltration (C/C-SiC). A new promising approach for the manufacturing of CFRP intermediate composites is the injection moulding of customised granulates (novolac resin, hardener, processing additives and short carbon fibre) produced by compounding technique. To date, a direct dosing of short carbon fibre into the compounder was technically not realisable due to fibre separation and electrostatic charging in the hopper. A possible substitute solution has

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Beyoud, Abdelkader, and Ahmed Bouhaouss. "An investigation into the feasibility of a hybrid generator–photovoltaic–wind farm with variable load profile: case of headland south-west of Morocco." Clean Energy 6, no. 3 (2022): 484–95. http://dx.doi.org/10.1093/ce/zkac025.

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Abstract A hybrid system proposed by three different specifications for the equipment of a tourist lodge in the headland of south-west Morocco was sized by analysing the limits of load profile constraints, such as hour-to-hour variability (HHR), day-to-day variability (DDR) and the operating reserve rate (ROR). Based on the three-factor Doehlert matrix recommendations, the simulations employed an energy-sizing tool for hybrid renewable-energy systems. Testing was conducted with DDR at 5–30%, HHR at 10–30% and ROR at 0–20%. Under these conditions, a second-order polynomial relationship with a c

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Bai, Na, Rui Xing Li, Zhan Li Gong, and Shou Biao Tan. "A High Robust SRAM Bitcell under Optimum-Energy Supply Voltage." Applied Mechanics and Materials 121-126 (October 2011): 1332–37. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1332.

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Simulation results illustrate that there is an optimum-energy supply voltage point (Vopt) for SoC. And these voltage points normally lie in weak sub-threshold or near-threshold region. Considering about the degraded robustness under this low supply voltage, structural change instead of the sizing change is considered in proposed design. Different from conventional 6T SRAM design, the trip point voltage of proposed design changes according to bit-line voltage values. In this way, its read margin is 45% greater than conventional 6T SRAM. The proposed bit-cell exhibits wide hysteresis effect, mak

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