中国电力 ›› 2019, Vol. 52 ›› Issue (10): 85-91.DOI: 10.11930/j.issn.1004-9649.201809085

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具有指数收敛速度的电力系统全分布式潮流算法

高长征1, 阎博2, 王佳蕊1, 常学飞1, 孙玥3   

  1. 1. 国网吉林省电力有限公司, 吉林 长春 130021;
    2. 国网冀北电力有限公司, 北京 100053;
    3. 北京清大高科系统控制有限公司, 北京 100083
  • 收稿日期:2018-09-21 修回日期:2019-07-23 出版日期:2019-10-05 发布日期:2019-10-12
  • 作者简介:高长征(1970-),男,博士,副教授,从事电力系统继电保护与控制研究,E-mail:gaochangzheng@aliyun.com;阎博(1983-),男,博士,高级工程师,从事电力系统调度自动化、电力系统稳定控制研究,E-mail:260767430@qq.com;王佳蕊(1988-),男,博士,工程师,从事新能源并网技术及储能技术研究,E-mail:wangjiarui247@126.com;常学飞(1984-),男,硕士,高级工程师,从事电网电能质量及新能源并网技术研究,E-mail:xuefeichang@163.com;孙玥(1983-),男,通信作者,硕士,工程师,从事智能电网、配电网DMS研究,E-mail:gazebo1992@hotmail.com
  • 基金资助:
    国网吉林省电力有限公司科技项目(分布式电源高渗透率配电网的分析评估技术研究,SGJLDK00DWJS1700057)。

A Fully Distributed Power Flow Algorithm with Exponentially Fast Convergence

GAO Changzheng1, YAN Bo2, WANG Jiarui1, CHANG Xuefei1, SUN Yue3   

  1. 1. State Grid Jilin Electric Power Co., Ltd., Changchun 130021, China;
    2. State Grid Jibei Electric Power Co., Ltd., Beijing 100053, China;
    3. Beijing KingStar High-tech System Control Co., Ltd., Beijing 100083, China
  • Received:2018-09-21 Revised:2019-07-23 Online:2019-10-05 Published:2019-10-12
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Jilin Electric Power Corporation (Research on Analysis and Evaluation Technology of Distribution Networks with High Penetration Level Distributed Generation, No.SGHADK00PJJS1700194)

摘要: 为了满足互联电力系统潮流计算对数据隐私的需求,提出了一种全分布式潮流算法。该方法由内环迭代与外环迭代组成,外环迭代基于牛顿-拉夫逊法计算雅可比矩阵,内环迭代采用全分布式算法在互联电网各分区分别求解各自的潮流修正方程。该方法不需要协调层对分布式计算进行分解协调,各分区仅需要与邻居分区交换潮流方程修正量的信息,外环迭代收敛特性与全局潮流相同,内环迭代保证收敛且具有指数收敛速度。通过IEEE39节点和118节点算例的测试表明,该方法具有较高的收敛性,适合于没有协调层的分布式潮流计算。

关键词: 互联电力系统, 潮流计算, 分布式算法, 牛顿法, 指数快速收敛

Abstract: In order to meet the data privacy requirements for interconnected power system power flow calculations, a fully distributed power flow algorithm is proposed. The method is composed of outer iteration and inner iteration. The outer iteration calculates the Jacobian matrix based on Newton-Raphson method, while the inner iteration uses the distributed algorithm to solve power flow correction equation for each partitioned area of interconnected power system. The proposed algorithm does not need any coordination layer to decompose and coordinate the distributed calculation, and each partitioned area in the power system only needs to exchange correction information of power flow equation with neighbor areas. The outer iteration has the same convergence behavior as global power flow, while the inner iteration can guarantee convergence with exponential rate. The numerical tests on IEEE 39- and 118-bus systems show that the proposed method has good convergence behavior and is suitable for power flow calculation without coordination layer.

Key words: interconnected power system, power flow calculation, distributed algorithm, Newton method, exponentially fast convergence

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