New Busbar Automatics Transfer Switch Scheme for New Energy Access

被引：0
|
作者：
Zheng T. [1 ]
Wang H. [1 ]
Yu X. [2 ]
Liu X. [3 ]
Hu S. [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources, North China Electric Power University, Changping District, Beijing
[2] State Grid Ningxia Electric Power Co., Ltd., Ningxia Hui Autonomous Region, Yinchuan
[3] Department of Electrical Engineering, Catholic University of Leuven, Leuven
来源：
Dianwang Jishu/Power System Technology | 2022年 / 46卷 / 11期
基金：
中国国家自然科学基金;
关键词：
AC chopper; busbar automatic transfer switch; grid connection strategy; new energy; power supply reliability;
D O I：
10.13335/j.1000-3673.pst.2021.2398
中图分类号：
学科分类号：
摘要：
Busbar automatic transfer switch(BATS) is one of the important measures to ensure the reliability of power supply in the power system. However, under a "dual-high" system, the "low-pass" feature of new energy causes bus residual voltages, making the traditional busbar automatic transfer switch unable to meet the conditions of bus voltage-free operation. Therefore, in the existing schemes, usually the new energy sources are first disconnected and then the busbar automatic transfer switch is started. In order to realize the busbar automatic transfer switch without cutting off the new energy, in this paper, the regularity of voltage and frequency changes at the point of common coupling of new energy and its influencing factors are analyzed in detail under the scene when the main supply line breaker is switched off. On this basis, a new busbar automatic transfer switch scheme based on energy-consuming resistance is proposed for the scenario of "source is larger than load". By putting in the AC chopper according to the power unbalance at the point of common coupling, the busbar automatic transfer switch without cutting off the new energy is achieved. Finally, the validity and feasibility of the new busbar automatic transfer switch scheme are verified by a large number of numerical examples. © 2022 Power System Technology Press. All rights reserved.
引用
收藏
页码：4296 / 4304
页数：8
相关论文
共 20 条
  • [1] MA Ningning, XIE Xiaorong, HE Jingbo, Review of wide-band oscillation in renewable and power electronics highly integrated power systems[J], Proceedings of the CSEE, 40, 15, pp. 4719-4731, (2020)
  • [2] XIE Xiaorong, HE Jingbo, MAO Hangyin, New issues and classification of power system stability with high shares of renewables and power electronics[J], Proceedings of the CSEE, 41, 2, pp. 461-475, (2021)
  • [3] Jun YI, BU Guangquan, GUO Qiang, Analysis on blackout in Brazilian power grid on March 21，2018 and its enlightenment to power grid in China[J], Automation of Electric Power Systems, 43, 2, pp. 1-6, (2019)
  • [4] ZENG Hui, SUN Feng, LI Tie, Analysis of “9·28” blackout in south Australia and its enlightenment to China[J], Automation of Electric Power Systems, 41, 13, pp. 1-6, (2017)
  • [5] LI Kai, DANG Jie, SUN Xin, Fast evaluation of transmission reliability margin of power systems considering wind power uncertainty[J], Power System Technology, 43, 9, pp. 3337-3343, (2019)
  • [6] LIU Jiantao, ZHU Bingquan, MA Jingwei, Study on evaluation indexes of spinning reserve capacity considering reliability in day-ahead schedule[J], Power System Technology, 43, 6, pp. 2147-2153, (2019)
  • [7] LIU Yanle, LIU Wenying, WANG Chuanqi, Research of self-adapted modeling methods for the BATS[J], Power System Protection and Control, 40, 6, pp. 40-45, (2012)
  • [8] FENG Baocheng, TIAN Zhihao, BAI Shibin, Study on countermeasures to prevent maloperation of zero-sequence overcurrent protection caused by ultra-high-voltage automatic device transfer[J], Power System Protection and Control, 49, 2, pp. 98-106, (2021)
  • [9] SU Yiqiang, KONG Lu, FU Xiangyun, Improvement of automatic transfer switch for backup power supply used in sectionalized single-bus configuration[J], Automation of Electric Power Systems, 36, 22, pp. 120-122, (2012)
  • [10] HU Lijin, ZHANG Xinyan, LIU Dongqiang, Consideration of power supply automatic switching device with wind power or different types with conventional energy[J], Power System Protection and Control, 39, 14, pp. 120-124, (2011)
12