Optimal voltage control in distribution systems using PV generators

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• 作者：Masato Oshiro^a ; Kenichi Tanaka^a ; ^{kenichitanaka23@yahoo.co.jp} ; ^{b985542@tec.u-ryukyu.ac.jp} ; Tomonobu Senjyu^a ; Shohei Toma^a ; Atsushi Yona^a ; Ashmed Yousuf Saber^a ; Toshihisa Funabashi^b ; ^{funabashi-t@mb.meidensha.co.jp} ; Chul-Hwan Kim^c ; ^{chkim-skku@yahoo.com}
• 关键词：Distributed generation ; Voltage control ; Coordinated operation ; Reactive power control
• 刊名：International Journal of Electrical Power and Energy Systems
• 出版年：2011
• 出版时间：March 2011
• 年：2011
• 卷：33
• 期：3
• 页码：485-492
• 全文大小：1409 K

文摘

Recently, renewable energy technologies such as wind turbine generators and photovoltaic systems have been introduced as distributed generation. The connection of large number of distributed generators causes voltage deviation beyond the statutory range in a distribution system. In this paper, a methodology for voltage control in proposed by using the tap changing transformers and the inverters interfaced with the distributed generators. In the proposed method, information of the voltage and power is collected via a communication network. Based on these information, the optimal reference values are calculated at the control center, and sent to the transformers and the inverters. The proposed method accomplishes a coordinated operation among the control equipments and reduces the voltage deviation. Effectiveness of the proposed method is verified by the numerical simulation results.