基于PMU量测信息的短线路同杆并架双回线参数辨识

doi:10.11930/j.issn.1004-9649.202001047

中国电力 ›› 2020, Vol. 53 ›› Issue (7): 141-148.DOI: 10.11930/j.issn.1004-9649.202001047

• 智能电网状态估计及其应急仿真专栏 • 上一篇下一篇

基于PMU量测信息的短线路同杆并架双回线参数辨识

黄潇潇¹, 杨韬², 郑骁麟¹, 郭凌旭³, 林济铿⁴

1. 国网天津市电力公司电力科学研究院，天津 300384;
2. 上海电力大学，上海 200090;
3. 国网天津市电力公司，天津 300010;
4. 同济大学电子与信息工程学院，上海 201804

收稿日期:2020-01-08 修回日期:2020-01-31 发布日期:2020-07-05
作者简介:黄潇潇(1990—)，女，硕士研究生，工程师，从事继电保护技术、电网调度自动化信息系统管理和新能源协调控制研究，E-mail: huangxiaoxiao3234@126.com;杨韬(1996—) ，男，硕士研究生，从事电力系统状态估计研究，E-mail: 784690711@qq.com;林济铿(1967—)，男，博士，教授，从事电力系统稳定性分析及控制、配网自动化、智能电网等研究，E-mail: mejklin@126.com
基金资助:
国家自然科学基金资助项目(基于图论的智能电网电力孤岛的模型和优化，51177107)

Parameter Identification of Short Parallel Double-Circuit Lines Based on PMU Measurements

HUANG Xiaoxiao¹, YANG Tao², ZHENG Xiaolin¹, GUO Lingxu³, LIN Jikeng⁴

1. Electric Power Research Institute of State Grid Tianjin Electric Power Company, Tianjin 300384, China;
2. Shanghai University of Electric Power, Shanghai 200090, China;
3. State Grid Tianjin Electric Power Company, Tianjin 300010, China;
4. College of Electronic and Information Engineering, Tongji University, Shanghai 201804, China

Received:2020-01-08 Revised:2020-01-31 Published:2020-07-05
Supported by:
This work is supported by National Natural Science Foundation of China (The Model and Optimization of Smart Grid Power Island Based on Graph Theory, No.51177107)

摘要/Abstract

摘要： 由于短线路同杆并架双回线越来越多，如何获得其准确的参数是亟待解决的问题。提出了基于PMU的短线路同杆并架双回线参数估计新方法。基于导体之间的耦合首先推导了短线路同杆并架双回线的阻抗模型；利用PMU在线实测数据提出了相应的短线路相角矫正方法和基于最小二乘法的短线路同杆并架双回线参数估计算法。该模型完整，算法直观简单，能够准确、快速地算得短线路同杆并架双回线之间的所有自感及互感参数。算例证明了该方法的有效性和正确性。

关键词: 电力系统, 同杆并架双回线, 参数辨识, PMU, 最小二乘法

Abstract: With the continuous increasing of short parallel double-circuit lines, it is an urgent problem to obtain their accurate parameters. In this paper, a new PMU-based method is proposed to estimate the parameters of short parallel double-circuit lines. Firstly, based on the coupling between conductors, the impedance model of short parallel double-circuit lines is deduced. And then, the corresponding short line phase angle correction method and the parameter estimation algorithm of short parallel double-circuit lines based on least square method are presented using the online PMU measurement data. The proposed model is complete, and the algorithm is simple and straightforward, which can accurately and quickly calculate all the parameters of short parallel double-lines. Case study has validated the effectiveness and correctness of the proposed method.

Key words: power system, parallel double-circuit lines, parameter identification, PMU, least square method

黄潇潇, 杨韬, 郑骁麟, 郭凌旭, 林济铿. 基于PMU量测信息的短线路同杆并架双回线参数辨识[J]. 中国电力, 2020, 53(7): 141-148.

HUANG Xiaoxiao, YANG Tao, ZHENG Xiaolin, GUO Lingxu, LIN Jikeng. Parameter Identification of Short Parallel Double-Circuit Lines Based on PMU Measurements[J]. Electric Power, 2020, 53(7): 141-148.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202001047

https://www.electricpower.com.cn/CN/Y2020/V53/I7/141

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基于PMU量测信息的短线路同杆并架双回线参数辨识

Parameter Identification of Short Parallel Double-Circuit Lines Based on PMU Measurements

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基于PMU量测信息的短线路同杆并架双回线参数辨识

Parameter Identification of Short Parallel Double-Circuit Lines Based on PMU Measurements

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