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基于多源数据多时间断面的配电网线路参数估计方法
作者:
作者单位:

1.强电磁工程与新技术国家重点实验室,华中科技大学,湖北省武汉市 430074;2.国网上海市电力公司,上海市 200122

摘要:

基于可大规模部署的微型同步相量测量单元(μPMU),分析现阶段多种量测体系的特点,提出基于多源数据多时间断面的配电网线路参数估计方法,既利用μPMU采样快速性进行多时间断面量测数据融合,又利用μPMU的精确时标进行同一时间断面上的数据对齐,将多时间断面的μPMU、数据采集与监控、高级量测体系量测数据联合建立量测方程,在满足相互独立条件时开展最小二乘法参数估计。针对配电网典型的主干/分支接线模式构建参数估计模型,通过IEEE 33配电网仿真算例分析多种量测配置情况下的应用场景,结果证明了所提方法的有效性。

关键词:

基金项目:

国家重点研发计划智能电网技术与装备重点专项资助项目(2017YFB0902800);已申请国家发明专利(申请号:201810562683.8)。

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作者简介:


Estimation Method of Line Parameter in Distribution Network Based on Multi-source Data and Multi-time Sections
Author:
Affiliation:

1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;2.State Grid Shanghai Municipal Electric Power Company, Shanghai 200122, China

Abstract:

Focuse on the micro-synchronous phasor measurement unit (μPMU) that can be deployed on a large scale, the characteristics of various measurement systems at this stage are analyzed, and a parameter estimation method of lines in diatributin network based on multi-source data and multi-time sections is proposed. In this method, the fast sampling speed of μPMU is used for the fusion of measurement data based on multi-time sections, and the precise time coordinate of μPMU is used for the aligment of mixed measurement data at the same time section. The measurement equations of μPMU, supervisory control and data acquisition (SCADA) and advanced metering infrastructure (AMI) with multi-time sections are jointly established. When the equations are independent of each other, the least square method parameter estimation is performed. The parameter estimation model is constructed for the typical backbone/branch line mode of the distribution network. Through the IEEE 33 distribution network simulation example, the application of parameter estimation under various measurement configurations are analyzed to prove the effectiveness of the proposed method.

Keywords:

Foundation:
This work is supported by Key Project of Smart Grid Technology and Equipment of National Key R&D Program of China (No. 2017YFB0902800).
引用本文
[1]刘安迪,李妍,谢伟,等.基于多源数据多时间断面的配电网线路参数估计方法[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20200621001.
LIU Andi, LI Yan, XIE Wei, et al. Estimation Method of Line Parameter in Distribution Network Based on Multi-source Data and Multi-time Sections[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20200621001.
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  • 收稿日期:2020-06-21
  • 最后修改日期:2020-10-21
  • 录用日期:2020-09-07
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