电压不平衡下Vienna整流器的谐振滑模控制策略

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电压不平衡下Vienna整流器的谐振滑模控制策略

更新时间：2025-07-09

- 电压不平衡下Vienna整流器的谐振滑模控制策略
- Issue 4, Pages: 76-84(2020)
- 作者机构：
  
  1. 西安交通大学电子与信息学部
  2. 西安交通大学电气工程学院
  3. 西安理工大学自动化与信息工程学院
  4. 西安工程大学电子信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM461
- Published：2020
- 稿件说明：
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[J]. 2020, (4): 76-84.
DOI：

[J]. 2020, (4): 76-84. DOI：

摘要

针对电网电压不平衡条件下

Vienna整流器存在的负序电流及有功功率纹波问题

提出一种谐振滑模控制策略。首先

利用三相电压电流推导了三相Vienna整流器的直接功率控制模型;然后

在电压不平衡条件下

分析了系统不同控制目标的二倍频纹波补偿量

并设计了谐振控制器以便快速有效地跟踪纹波;最后

应用滑模控制策略对功率环进行设计

并通过对Lyapunov方程的求解确定Vienna整流器输出电压控制量。在MATLAB/Simulink上搭建了Vienna整流器仿真平台

对所提的谐振滑模控制策略的有效性进行了验证。仿真结果表明

该策略提高了系统在电网不平衡条件下的稳定性及控制精度。与传统PI控制策略相比

在电网不平衡下

Vienna整流器交流侧负序电流被抑制到原有的35.7%

有功功率纹波减少了67%。

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