Optimization of Passive Damping Parameters of SWISS Rectifier Based on LCL Filter Genetic Algorithm

ZHANG Yang; DENG Jiangwei; CHENG Zhun

doi:10.3969/j.issn.1008-0198.2022.06.008

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Optimization of Passive Damping Parameters of SWISS Rectifier Based on LCL Filter Genetic Algorithm

更新时间：2025-06-11

- Optimization of Passive Damping Parameters of SWISS Rectifier Based on LCL Filter Genetic Algorithm
- Vol. 42, Issue 6, Pages: 46-53(2022)
- 作者机构：
  
  1. 湖南工业大学电气与信息工程学院,湖南,株洲,412007
  2. 湖南铁道职业技术学院,湖南,株洲,412001
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2022.06.008
  CLC： TM461
- Published：2022
- 稿件说明：
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张阳, 邓江伟, 程谆. 改进SWISS整流器的LCL滤波遗传算法无源阻尼参数优化[J]. 湖南电力, 2022, 42(6): 46-53.

ZHANG Yang, DENG Jiangwei, CHENG Zhun. Optimization of Passive Damping Parameters of SWISS Rectifier Based on LCL Filter Genetic Algorithm[J]. 2022, 42(6): 46-53.
张阳, 邓江伟, 程谆. 改进SWISS整流器的LCL滤波遗传算法无源阻尼参数优化[J]. 湖南电力, 2022, 42(6): 46-53. DOI： 10.3969/j.issn.1008-0198.2022.06.008.

ZHANG Yang, DENG Jiangwei, CHENG Zhun. Optimization of Passive Damping Parameters of SWISS Rectifier Based on LCL Filter Genetic Algorithm[J]. 2022, 42(6): 46-53. DOI： 10.3969/j.issn.1008-0198.2022.06.008.

摘要

改进SWISS整流器具有在不引入有源器件的前提下消除换流死区时间的优势

然而引入LCL滤波存在参数选择困难和谐振引起的电流畸变问题。针对改进SWISS整流器

分析网侧电流畸变、振荡问题与LCL滤波器阻尼系数的关系

构建LCL滤波器传递函数

对比了增加不同阻尼的伯德图

提出目标函数电感比最小化、谐波衰减最大化、功率损耗最小化的遗传算法无源阻尼参数优化方法。仿真结果表明

采用所提方法的改进型SWISS整流器前级LCL滤波网侧电流谐波含量明显低于传统试凑法

系统整体动态性能更优

并且参数由遗传算法全局优化所得

具有很好的收敛性

一定程度解决了LCL滤波器参数因步骤繁琐造成选择困难的问题。

Abstract

The improved SWISS rectifier has the advantage of eliminating the commutation dead time without introducing active devices. However

the introduction of LCL filter has the problems of difficult parameter selection and current distortion caused by resonance. In this paper

for improving the SWISS rectifier

the relationship between the network-side current distortion and oscillation problems and the damping coefficient of LCL filter is analyzed

the LCL filter transfer function is constructed

the Bode diagram with different damping is compared

and a genetic algorithm passive damping parameter optimization method with minimized inductance ratio

maximized harmonic attenuation and minimized power loss of the objective function is proposed. The simulation results show that the improved SWISS rectifier front-stage LCL filter network side current harmonic content is significantly lower than the traditional trial-and-error method

the overall dynamic performance of the system is better

moreover

the parameters obtained from the global optimization of genetic algorithm have good convergence

and to some extent

the problem of choosing LCL filter parameters is solved because of the tedious steps.

关键词

Keywords

references

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