基于准PR控制的储能逆变器离网模式下稳定性分析

XU Shaohua

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基于准PR控制的储能逆变器离网模式下稳定性分析

更新时间：2025-08-13

- 基于准PR控制的储能逆变器离网模式下稳定性分析
- Automation of Electric Power Systems Vol. 39, Issue 19, Pages: 107-112(2015)
- 作者机构：
  
  中国电力科学研究院,北京市,100192
- 作者简介：
- 基金信息：
- DOI：
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- Published：2015
- 稿件说明：
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XU Shaohua. [J]. Automation of electric power systems, 2015, 39(19): 107-112.
DOI：

XU Shaohua. [J]. Automation of electric power systems, 2015, 39(19): 107-112. DOI：

摘要

对储能逆变器在离网模式下的稳定判据进行了研究。介绍了级联系统的概念

基于储能逆变器带负载运行的拓扑结构

引入输出阻抗及输入阻抗的概念

并根据阻抗率的奈奎斯特曲线确定系统稳定运行的拒绝域。采用准比例-谐振(PR)控制器对逆变器进行控制

建立其数学模型

并得到了逆变器的输出阻抗。最后

基于MATLAB仿真模型

分别在负荷水平、控制器参数及滤波器参数变化的条件下

仿真分析了逆变器输出阻抗变化对系统稳定性带来的影响

并得出相应的结论

为实际系统的设计提供相应的理论支撑和指导经验。

Abstract

A stability criterion research on the energy storage inverter under the off-grid condition is conducted. First

this paper describes the concept of the cascade system and that of output impedance and input impedance based on the topology of an energy storage inverter with load. A quasi proportional-resonant (PR) controller is adopted to control the inverter

set up its mathematical model and get the inverter’s output impedance. Based on the MATLAB simulation model

the influence of variation of the inverter's output impedance on the system stability is analyzed by simulation under the condition of variation of the load level

controller parameters and filter parameters

respectively. Corresponding conclusions are drawn which can provide theoretical support and guiding experience for actual system design. This work is supported by National High Technology Research and Development Program of China (863 Program) (No. 2014AA052004).

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