The online voltage control of ULTC transformer for distribution voltage regulation

被引:28
作者
Choi, JH [1 ]
Kim, JC [1 ]
机构
[1] Soongsil Univ, Dept Elect Engn, Power Syst Lab, Dongjak Ku, Seoul 156743, South Korea
关键词
line drop compensation; ULTC transformer; unbalanced load diversity; distribution voltage regulation;
D O I
10.1016/S0142-0615(00)00052-1
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper proposes the advanced online control method of the Under-Load Tap Changer (ULTC) transformer for distribution voltage regulation which considers the unbalanced load diversity on multiple feeders and the hysterical tap changing mechanism of the ULTC transformer. The proposed method determines the optimal tap position of the ULTC transformer to maintain the customers' voltages within the permissible limits as much as possible. The numerical formulations of the proposed method are presented. The results from a case study show that the proposed method can be practically applied to voltage regulation methods on power distribution systems that have unbalanced load diversity on multiple feeders and large voltage drops on feeders. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:91 / 98
页数:8
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