新能源电站集电馈线对多变流器并网运行稳定性的影响

YAN Yabing

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新能源电站集电馈线对多变流器并网运行稳定性的影响

更新时间：2025-08-13

- 新能源电站集电馈线对多变流器并网运行稳定性的影响
- Automation of Electric Power Systems Vol. 40, Issue 15, Pages: 86-92(2016)
- 作者机构：
  
  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
- 作者简介：
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- DOI：
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- Published：2016
- 稿件说明：
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YAN Yabing. [J]. Automation of electric power systems, 2016, 40(15): 86-92.
DOI：

YAN Yabing. [J]. Automation of electric power systems, 2016, 40(15): 86-92. DOI：

摘要

风电、光伏等新能源电站中集电系统馈线的分布参数对各个基于LCL滤波器的发电单元变流器谐振特性影响较大

这给变流器控制系统设计带来挑战。为了分析集电系统馈线对多变流器并联运行稳定性的影响

在复频域中采用运算电路的节点导纳矩阵建立了多机系统的数学模型

并分析了模型频率函数特性。分析结果表明

集电系统中不同馈线类型下拓扑形式与馈线长度对变流器的稳定性影响存在较大区别

基于MATLAB/Simulink平台的仿真分析验证了相关结论。

Abstract

The distributed parameters of collector feeders on the photovoltaic and wind farm have an important influence on the resonance of converters based on LCL filters

presenting a challenge to converter control system design. In order to investigate the impact of the renewable power plant collector system on the stability of grid-connected multi-converters

a mathematical model for the multi-converter system is developed using the network admittance matrix in the complex frequency domain

and frequency characteristics are analyzed. It is shown that the influence on the stability of converters varies with topological form and feeder length of different feeder types in the collector system. The validity of the relevant conclusions is verified by simulation results based on MATLAB/Simulink. This work is supported by National Natural Science Foundation of China(No. 51190104)

National Basic Research Program of China(973 Program)(No. 2012CB215100)and State Grid Corporation of China(No. 52283014003).

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