主动配电网中谐波对量测误差及其状态估计影响的仿真分析

GAO Yajing

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主动配电网中谐波对量测误差及其状态估计影响的仿真分析

更新时间：2025-08-13

- 主动配电网中谐波对量测误差及其状态估计影响的仿真分析
- Automation of Electric Power Systems Vol. 39, Issue 9, Pages: 88-94(2015)
- 作者机构：
  
  新能源电力系统国家重点实验室，华北电力大学,河北省,保定市,071003
- 作者简介：
- 基金信息：
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- Published：2015
- 稿件说明：
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GAO Yajing. [J]. Automation of electric power systems, 2015, 39(9): 88-94.
DOI：

GAO Yajing. [J]. Automation of electric power systems, 2015, 39(9): 88-94. DOI：

摘要

针对主动配电网，构建了考虑谐波影响的量测系统模型，并分析了其对配电网状态估计影响。首先，介绍了主动配电网谐波源的电流源模型，并阐述了在MATLAB/Simulink仿真环境下构建谐波源模型的步骤。其次，建立了电压量测回路和电流量测回路的模型，详细介绍了各自电缆的频率特性，并根据现有的电子式电能表工作原理给出了功率量测的计算公式，建立了完整的量测系统，对量测误差进行了分析。最后，通过仿真并利用IEEE 13节点配电网络从电缆长度、谐波次数、非线性负荷等多个方面详细分析了各因素对配电网量测及状态估计的影响。

Abstract

A measuring system model considering harmonics is developed with its effect on state estimation of the active distribution network analyzed. To begin with

the current injection model of harmonics in the distribution network is described. The MATLAB/Simulink based procedure for simulating harmonic sources is also explained. Secondly

the models of voltage and current measurement channel are proposed

respectively. The frequency characteristics of their channel cables are accounted for in detail. The whole measuring system is built with the measuring errors analyzed according to the currently available working principle of the electronic energy meter. To demonstrate the effect on measurement and state estimation by the measuring system

various numerical tests on a modified IEEE 13-bus test feeder are made by simulation that considers different scenarios including different lengths of the channel cable and different compositions of nonlinear load. This work is supported by National Key Technologies R&D Program (No. 2013BAA01B01).

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