Voltage control method for distribution networks based on active load transfer

Author(s): Baoxuan Yea, Yuwu Wua, Bingzhang Tonga, Kangjian Wanga, Luqing Wanga, Shijian Zhangb
a Hainan power grid Co., Ltd,Wenchang 571300, Hainan, China
b BENLIU Electrical Technology Co., Ltd, Guangzhou 510640, Guangdong, China
International Journal of Smart Grid and Clean Energy, vol. 8, no. 5, September 2019: pp. 592-596
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.8.5.592-596

Abstract: The existing reactive power and voltage control methods are temporarily unable to meet the normal voltage regulation needs of distribution network. Aiming at the status quo, a new voltage control method based on active load transfer, is proposed in this paper, according to the typical connection structure and voltage control analysis of distribution network. This method takes the highest nodal voltage qualification rate of the line in a time period as the objective function, establishes voltage control model of active load transfer, and solves the model by extending the calculation, so as to maintain the line voltage within the qualified range. Taking a real feeder as an example, the traditional voltage control method and the method presented in this paper are simulated and compared, which proves validity of the proposed method, which performs excellently in reducing power loss and improving voltage quality.

Keywords: active distribution network; voltage control; active load transfer
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