改进SWISS整流器的LCL滤波遗传算法无源阻尼参数优化

doi:10.3969/j.issn.1008-0198.2022.06.008

湖南电力 ›› 2022, Vol. 42 ›› Issue (6): 46-53.doi: 10.3969/j.issn.1008-0198.2022.06.008

改进SWISS整流器的LCL滤波遗传算法无源阻尼参数优化

张阳¹, 邓江伟¹, 程谆²

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

收稿日期:2022-08-10 修回日期:2022-09-23 出版日期:2022-12-25 发布日期:2023-01-13
作者简介:张阳(1988),男,山东潍坊人,副教授,硕士生导师,主要研究方向为电力电子与新能源发电技术。邓江伟(1997),男,湖南株洲人,硕士研究生,主要研究方向为电力电子与新能源发电技术。程谆(1988),女,湖南宁乡人,讲师,硕士,通信作者,主要研究方向为现代电力电子技术与系统。
基金资助:
国家自然科学基金(51907061);湖南省自然科学基金(2022JJ50094)

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

ZHANG Yang¹, DENG Jiangwei¹, CHENG Zhun²

1. College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China;
2. Hunan Railway Professional Technology College, Zhuzhou 412001, China

Received:2022-08-10 Revised:2022-09-23 Online:2022-12-25 Published:2023-01-13

摘要/Abstract

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。

关键词: 改进SWISS整流器, 无源阻尼参数优化, 遗传算法

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.

Key words: improved SWISS rectifier, passive damping parameter optimization, genetic algorithm

中图分类号:

TM461

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]. Hunan Electric Power, 2022, 42(6): 46-53.

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改进SWISS整流器的LCL滤波遗传算法无源阻尼参数优化

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

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