The Experts below are selected from a list of 29571 Experts worldwide ranked by ideXlab platform
Mirko Todorovski - One of the best experts on this subject based on the ideXlab platform.
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transformer Voltage Regulation compact expression dependent on tap position and primary secondary Voltage
IEEE Transactions on Power Delivery, 2014Co-Authors: Mirko TodorovskiAbstract:This letter presents a compact transformer Voltage Regulation expression which accounts for off-nominal tap position and Voltage deviation from the nominal value. The expression is validated through comparison with the common expressions used in the literature. It is shown that the primary/secondary Voltage variation has a certain influence on the results which were not taken into account in previous compact forms of the Voltage Regulation expression.
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Transformer Voltage Regulation—Compact Expression Dependent on Tap Position and Primary/Secondary Voltage
IEEE Transactions on Power Delivery, 2014Co-Authors: Mirko TodorovskiAbstract:This letter presents a compact transformer Voltage Regulation expression which accounts for off-nominal tap position and Voltage deviation from the nominal value. The expression is validated through comparison with the common expressions used in the literature. It is shown that the primary/secondary Voltage variation has a certain influence on the results which were not taken into account in previous compact forms of the Voltage Regulation expression.
Xavier Guillaud - One of the best experts on this subject based on the ideXlab platform.
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Multi-agent system for distributed Voltage Regulation of wind generators connected to distribution network
IEEE PES Innovative Smart Grid Technologies Conference Europe ISGT Europe, 2010Co-Authors: Hicham Fakham, Amir Ahmidi, Frederic Colas, Xavier GuillaudAbstract:Currently, for wind generators connected to distribution network, Voltage Regulation systems are centralized. For a best integration of these distributed generators, the Voltage Regulation system must also be distributed. In this paper, a decentralization of Voltage Regulation using multi-agent system technique is proposed. Each agent has a local multi-objective optimization function and controls the Voltage at its wind generator bus and participates in Voltage Regulation of pilot bus. This one represents the Voltage variations in all buses. All agents are coordinating together and the coordination is cooperative. To manage this coordination, different interaction protocols are developed. To test this decentralized strategy, an experimental platform is performed. Multi-agent system can operate in a realtime environment that combines simulation system and network communication. Some experimental results are presented.
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Contribution of local Voltage Regulation to a better insertion of DG in distribution grids
IET Conference Publications, 2009Co-Authors: Jerome Duval, Gauthier Delille, Jean-luc Fraisse, Xavier GuillaudAbstract:To facilitate the increasing penetration of DG, Voltage Regulation may be required in a near future. This paper therefore presents a local DG Voltage Regulation. According to performed simulation, significant increase in admissible installed capacity of DG is possible. Nevertheless, impact on existing grid components must be carefully taken into account.
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A Voltage Regulation system for distributed generation
IEEE PES Power Systems Conference and Exposition 2004., 2004Co-Authors: E.f. Mogos, Xavier GuillaudAbstract:Voltage Regulation at the point of common coupling (PCC) can increase the penetration level of distributed generation (DG) into the distribution network. This paper deals with a Voltage Regulation algorithm for a grid-connected DG, based on active and reactive power control. A review of different DG reactive power control solutions is made. When the reactive power control is not sufficient to keep the Voltage on the appropriate range, an action on the active power must be considered. Two DG operating modes are identified and two switching methods between those modes are compared in respect with DG dynamics. The operating modes switching may induce some oscillations that can be eliminated using an appropriate control algorithm.
Y Baghzouz - One of the best experts on this subject based on the ideXlab platform.
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Voltage Regulation and overcurrent protection issues in distribution feeders with distributed generation a case study
Hawaii International Conference on System Sciences, 2005Co-Authors: Y BaghzouzAbstract:The installation of distributed generation (DG) on distribution feeders is known to have an impact on Voltage Regulation. A DG can provide Voltage support in some cases, but can also cause an overVoltage or an underVoltage, depending on the several variables including relative DG size and location, distribution line and load characteristics, and method of Voltage Regulation. This paper shed some light the impact of DGs on Voltage Regulation and on overcurrent protection. These impacts are investigated on a feasibility study concerning the installation of a 5 MW grid-tied PV system to a local distribution system.
Hirofumi Akagi - One of the best experts on this subject based on the ideXlab platform.
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Voltage Regulation performance of a shunt active filter intended for installation on a power distribution system
IEEE Transactions on Power Electronics, 2007Co-Authors: Hideaki Fujita, Hirofumi AkagiAbstract:This paper discusses a shunt active filter intended for installation on a power distribution system. The active filter has an additional capability to regulate the distribution-line Voltage by means of adjusting reactive power. Theoretical analysis investigates the dynamic performance of combined harmonic damping and Voltage Regulation. As a result, harmonic damping makes it possible to improve the stability of the control loop for Voltage Regulation, and the combined harmonic damping and Voltage Regulation lead to good Voltage Regulation performance. Experimental results are shown to verify the effectiveness of the combined harmonic damping and Voltage Regulation
Matteo Renieri - One of the best experts on this subject based on the ideXlab platform.
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Study on zoning procedures for Secondary Voltage Regulation
2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC I&CPS, 2020Co-Authors: Fabio Marzolla, Massimiliano Chiandone, Giorgio Sulligoi, A. Vicenzutti, Enrico Maria Carlini, Giorgio Giannuzzi, Roberto Zaottini, Matteo RenieriAbstract:Currently, the electric power generation and transmission systems are undergoing major changes, due to the increase in distributed power generation and the related decrease in conventional power plants. Moreover, to reduce the electric power system pollutants emissions, in Italy the decommissioning of coal-fired power plants is ongoing. As a result, the number of power plants capable of ensuring the secondary Voltage control is dwindling, substituted by generators with less Voltage Regulation capabilities. To cope with such an issue, one of the possible solutions is the introduction of a new Voltage Regulation architecture. However, it is necessary to analyze the present secondary Voltage Regulation system, in order to evaluate how much of its control architecture can be kept, and where to intervene to improve it. To this aim, in this paper the assessment of the parameters affecting the behavior of the Italian secondary Voltage Regulation system is made, in terms of areas and pilot nodes determination. This is done by means of two different procedures, implemented with a software approach that allows for a partial automation of the process.
