中国电力 ›› 2019, Vol. 52 ›› Issue (5): 63-69.DOI: 10.11930/j.issn.1004-9649.201801029

• 电网 • 上一篇    下一篇

基于AMI量测信息的低压配电网线路参数辨识方法

王旭东1, 王高猛2, 林济铿3, 康宁1, 丁一1, 刘辉4   

  1. 1. 国网天津市电力公司, 天津 300010;
    2. 中水北方勘测设计研究有限责任公司, 天津 300222;
    3. 同济大学 电子与信息工程学院, 上海 201804;
    4. 国网安徽省电力公司调度控制中心, 安徽 合肥 230061
  • 收稿日期:2018-01-08 修回日期:2018-11-09 出版日期:2019-05-05 发布日期:2019-05-14
  • 作者简介:王旭东(1985-),男,博士,工程师,从事电力系统稳定性分析及控制、智能电网等研究,E-mail:tjwangxudong@sina.com;王高猛(1992-),男,硕士,从事电力系统的优化与控制、配电自动化研究,E-mail:18720981412@163.com;林济铿(1967-),男,博士,教授,从事电力系统稳定性分析及控制、智能电网等研究,E-mail:mejklin@126.com

Method for Parameter Identification of LV Distribution Network based on AMI Metering Data

WANG Xudong1, WANG Gaomeng2, LIN Jikeng3, KANG Ning1, DING Yi1, LIU Hui4   

  1. 1. State Grid Tianjin Electric Power Company, Tianjin 300010, China;
    2. China Water Resources Beifang Investigation, Design and Research Co., Ltd., Tianjin 300222, China;
    3. College of Electronic and Information Engineering, Tongji University, Shanghai 201804, China;
    4. Dispatching and Control Center of State Grid Anhui Electric Power Company, Hefei 230061, China
  • Received:2018-01-08 Revised:2018-11-09 Online:2019-05-05 Published:2019-05-14

摘要: 针对目前配电线路参数缺少精准辨识的难题,提出了基于高级量测体系(advanced meter infrastructure,AMI)量测信息的低压配电网线路参数辨识方法。该方法基于AMI量测数据,从网络末节点开始对整个网络的支路参数进行分步估计,建立关于低压配电线路阻抗参数的非线性方程组,并采用最小二乘法对其进行求解,实现全网可观测线路的辨识和估计。算例证明了方法的可行性与有效性。

关键词: 高级量测体系(AMI), 低压配电网, 线路参数辨识, 最小二乘法

Abstract: Aiming at the problem of poor identification of the line parameters in distribution network, this paper presents a method for identifying the line parameters in low-voltage (LV) distribution network based on advanced meter infrastructure (AMI). Starting from the nodes at the end of the network, the method estimates the branch line parameters of the network using the AMI measurement data. Nonlinear equations of the impedance parameters of the LV distribution line are established and the least square method is employed to solve the equations. In this way, the impedance parameter of all observable lines of the whole network can be identified and estimated. A case study has verified the feasibility and reliability of the proposed method.

Key words: advanced meter infrastructure, low-voltage distribution network, identification of line parameters, the least square method

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