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A Study on the Control Method of Customer Voltage Variation in Distribution System with PV Systems
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 Title & Authors
A Study on the Control Method of Customer Voltage Variation in Distribution System with PV Systems
Kim, Byung-ki; Choi, Sung-sik; Wang, Yong-peel; Kim, Eung-sang; Rho, Dae-seok;
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 Abstract
This paper deals with the modified modeling of PV system based on the PSCAD/EMTDC and optimal control method of customer voltages in real distribution system interconnected with the photovoltaic (PV) systems. In order to analyze voltage variation characteristics, the specific modeling of PV system which contains the theory of d-q transformation, current-control algorithm and sinusoidal PWM method is being required. However, the conventional modeling of PV system can only perform the modeling of small-scale active power of less than 60 [kW]. Therefore, this paper presents a modified modeling that can perform the large-scale active power of more than 1 [MW]. And also, this paper proposes the optimal operation method of step voltage regulator (SVR) in order to solve the voltage variation problem when the PV systems are interconnected with the distribution feeders. From the simulation results, it is confirmed that this paper is effective tool for voltage analysis in distribution system with PV systems.
 Keywords
PV system;Distribution system;PSCAD/EMTDC;d-q transformation;Current-control algorithm;Step voltage regulator;Voltage regulation;
 Language
English
 Cited by
 References
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