三端智能软开关运行控制模式切换技术

doi:10.11930/j.issn.1004-9649.202203028

中国电力 ›› 2023, Vol. 56 ›› Issue (4): 104-111.DOI: 10.11930/j.issn.1004-9649.202203028

• 面向数字配电网的边缘计算与控制技术 • 上一篇下一篇

三端智能软开关运行控制模式切换技术

汪辉¹, 曹毅², 罗宁³, 高华³, 张彦³, 张裕³, 程浩忠⁴

1. 上海电力大学电气工程学院, 上海 200090;
2. 南方电网科学研究院有限责任公司, 广东广州 510080;
3. 贵州电网有限责任公司电网规划研究中心, 贵州贵阳 550003;
4. 电力传输与功率变换控制教育部重点实验室(上海交通大学电气工程系), 上海 200240

收稿日期:2019-01-13 修回日期:2021-05-30 发布日期:2023-04-26
作者简介:汪辉(1996-),男,硕士研究生,从事柔性配电网故障恢复研究,E-mail:1213882743@qq.com;曹毅(1986-),男,硕士,高级工程师,从事电力系统规划设计、电力行业咨询研究,E-mail:caoyi@csg.cn;程浩忠(1962-),男,通信作者,博士,教授,从事电力系统规划、电压稳定、综合能源系统规划研究,E-mail:hzcheng@sjtu.edu.cn
基金资助:
中国南方电网有限责任公司科技项目（GZKJXM20210368）。

Switching Technology of Three-Terminals Soft Open Point Control Mode

WANG Hui¹, CAO Yi², LUO Ning³, GAO Hua³, ZHANG Yan³, ZHANG Yu³, CHENG Haozhong⁴

1. College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;
2. China Southern Power Grid Research Institute Co., Ltd., Guangzhou 510080, China;
3. Power Grid Planning and Research Center, Guizhou Power Grid Co., Ltd., Guiyang 550003, China;
4. Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Department of Electrical Engineering, Shanghai Jiao Tong University), Shanghai 200240, China

Received:2019-01-13 Revised:2021-05-30 Published:2023-04-26
Supported by:
This work is supported by Science and Technology Project of China Southern Power Grid Corporation (No.GZKJXM20210368).

摘要/Abstract

摘要： 多馈线故障下，提出三端智能软开关（soft open point，SOP）运行控制模式切换技术。首先，结合三端SOP控制模式的内外环结构，提出了一种改进控制逻辑的控制模式切换策略；然后，为实现多馈线故障下SOP各工作模式间平稳过渡，提出了适用于多馈线故障下三端SOP的控制模式切换流程；接着，通过采用相角预同步策略，保证了失电馈线并网时相角的平滑性；最后，搭建了含三端SOP的配电系统模型，并进行仿真。仿真结果表明：所提的运行控制模式切换技术能减少直流侧最大电压波动，各端口电压和相角能够平稳过渡。

关键词: 智能软开关, 控制模式切换, 多馈线故障, 相角预同步

Abstract: This paper proposes a three-terminals soft open point (SOP) operation control mode switching technology under the multi-feeder faults. Firstly, combined with the inner and outer loop structures of control mode of three-terminals SOP, a control mode switching strategy with improved control logic is proposed. Secondly, in order to realize the smooth transition between SOP working modes under multiple feeder faults, a control mode switching process suitable for three-terminals SOP under multiple feeder faults is proposed. Then, by adopting the phase angle pre-synchronization strategy, the smoothness of the phase angle when the power-loss feeder is connected to the grid is ensured. Thirdly, the phase angle pre-synchronization strategy is adopted to ensure the smoothness of the phase angle when the power-loss feeder is connected to the grid. Finally, A power distribution system model with three-terminals SOP is built for simulation. The simulation results show that the proposed operation control mode switching technology can reduce the maximum voltage fluctuation on the DC side, and the voltage and phase angle of each port can transition smoothly.

Key words: soft open point, control mode switching, multi-feeder faults, phase angle pre-synchronization

汪辉, 曹毅, 罗宁, 高华, 张彦, 张裕, 程浩忠. 三端智能软开关运行控制模式切换技术[J]. 中国电力, 2023, 56(4): 104-111.

WANG Hui, CAO Yi, LUO Ning, GAO Hua, ZHANG Yan, ZHANG Yu, CHENG Haozhong. Switching Technology of Three-Terminals Soft Open Point Control Mode[J]. Electric Power, 2023, 56(4): 104-111.

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三端智能软开关运行控制模式切换技术

Switching Technology of Three-Terminals Soft Open Point Control Mode

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