• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2019, Vol. 40 ›› Issue (2): 71-78.doi: 10.3969/j.issn.1000-7229.2019.02.009

• 智能电网 • 上一篇    下一篇

含柔性多状态开关的配电网分区方法

张今1,江全元1,周自强2,陆翌2,杨勇3   

  1. 1.浙江大学电气工程学院,杭州市 310027;2.国网浙江省电力有限公司电力科学研究院,杭州市 310014;3. 国网浙江省电力有限公司,杭州市 310000
  • 出版日期:2019-02-01
  • 作者简介:张今(1995),女,硕士研究生,主要研究方向为智能配电网的规划与运行控制; 江全元(1975),男,教授,博士生导师,主要研究方向为电力系统稳定与控制、电力系统高性能计算、电力系统最优化; 周自强(1968),男,高级工程师,主要研究方向为智能电网信息通信及生产作业管理; 陆翌(1979),男,博士,教授级高级工程师,主要研究方向为柔性直流输电、直流配电网以及电力系统电力电子技术相关试验; 杨勇(1968),男,博士,高级工程师,主要研究方向为柔性直流输电、直流配电网以及电力系统电力电子技术。
  • 基金资助:
    国家重点研发计划项目(2017YFB0903100);国家电网公司科技项目(521104170043)

A Partitioning Method for Distribution Network with Flexible Multi-state Switches

ZHANG Jin1,JIANG Quanyuan1 ,ZHOU Ziqiang2,LU Yi2,YANG Yong3   

  1. 1.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;2.State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;3.State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310000, China
  • Online:2019-02-01
  • Supported by:
    This work is supported by National Key Research and Development Program of China(No. 2017YFB0903100)and State Grid Corporation of China Research Program(No. 521104170043).

摘要: 柔性多状态开关是一种新型智能配电装置。结合柔性多状态开关的功能特点,提出了含柔性多状态开关的配电网分区条件。以多层图分割理论框架为基础,提出了由粗化、分区和还原阶段构成的分区方法。在粗化过程中,提出了基于最短电气距离的粗化方法,使用贪婪图生长算法完成初始分区,并在还原阶段提出了基于路径搜索的还原方法。分区方法不仅能够优化配电网的运行指标,还能够提高配电网的可控性和灵活性。通过IEEE 118节点配电网算例对所述分区方法进行了说明和验证,并结合柔性多状态开关的调控对分区效果进行了进一步分析。结果表明,该方法能够改善配电网的日均馈线负载均衡度,并能够和柔性多状态开关的调控相配合,进一步改善配电网每一时刻的馈线负载均衡度和电压分布。

关键词: 柔性多状态开关, 分区方法, 多层图分割, 馈线负载均衡度, 配电网

Abstract: Flexible multi-state switch is a new kind of intelligent distribution device. Considering the functional characteristics, the requirement of partitioning distribution network with flexible multi-state switches is proposed. According to the theoretical framework of the multi-level graph partitioning, a partitioning method which contains of three stages of coarsening, partitioning and refinement is proposed. In the coarsening stage, a method aiming at minimum electrical distance is given. After the initial partitioning is completed by the greedy growing graph partitioning algorithm, the preliminary splitting boundary will be refined by the path searching algorithm. The proposed method can not only optimize the operation indices of the distribution network, but also increase the flexibility and controllability of the distribution network. IEEE 118-node test system is used to demonstrate and validate the effectiveness of the splitting strategy. As for the partitioning result, further analysis is made while considering the regulation of flexible multi-state switch. The result shows the partitioning method can not only improve the average feeder load balance index, but also improve the feeder load balance and voltage distribution cooperated with the regulation of flexible multi-state switch.

Key words: flexible multi-state switch, partitioning method, multi-level graph partitioning, feeder load balance index, distribution network

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