基于NSGA-Ⅱ优化的无源变开关频率SPWM及其在单相逆变器上的应用

KONG Xixi; WANG Hongliang; ZHU Xiaonan; ZHOU Mengran; YUE Xiumei; WANG Yiwang

doi:10.13336/j.1003-6520.hve.20242028

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基于NSGA-Ⅱ优化的无源变开关频率SPWM及其在单相逆变器上的应用

更新时间：2026-09-16

- 基于NSGA-Ⅱ优化的无源变开关频率SPWM及其在单相逆变器上的应用
- Vol. 51, Issue 9, Pages: 4785-4795(2025)
- 作者机构：
  
  1. 安徽理工大学电气与信息工程学院,淮南,232001
  2. 国家电能变换与控制工程技术研究中心(湖南大学),长沙,410082
  3. 苏州市智慧能源技术重点实验室(苏州市职业大学),苏州,215104
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20242028
  CLC：
- Received：30 September 2025，
  
  Published：2025
- 稿件说明：
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KONG Xixi, WANG Hongliang, ZHU Xiaonan, et al. 基于NSGA-Ⅱ优化的无源变开关频率SPWM及其在单相逆变器上的应用[J]. 2025, 51(9): 4785-4795.
DOI：

KONG Xixi, WANG Hongliang, ZHU Xiaonan, et al. 基于NSGA-Ⅱ优化的无源变开关频率SPWM及其在单相逆变器上的应用[J]. 2025, 51(9): 4785-4795. DOI： 10.13336/j.1003-6520.hve.20242028.

摘要

通过合理选取注入函数和深度，无源变开关频率正弦脉宽调制技术(passive variable switching frequency sinusoidal pulse width modulation，PVSFSPWM)能够有效降低损耗和改善电流纹波。针对注入函数和深度因人工经验选取导致PVSFSPWM对系统性能的改善效果受限的问题，该文提出基于非支配排序遗传算法(nondominated sorting genetic algorithm-Ⅱ)优化的PVSFSPWM技术，简称为NSGA-Ⅱ-PVSFSPWM。以开关损耗和电流纹波为优化目标，使用NSGA-Ⅱ算法优化PVSFSPWM的每个开关周期，从而选取出合理的注入函数和深度。搭建一个1 kW单相全桥逆变器实验平台，实验结果表明，所提方法相较于固定开关频率正弦脉宽调制技术(constant switching frequency sinusoidal pulse width modulation，CSFSPWM)，输出桥臂电压谐波峰值从185.77 V降至78.35 V，电流纹波降低3.92%，效率提升1.32%；相较于优化前PVSFSPWM方法，电流纹波降低2%，效率提升1.04%。研究表明所提方法能有效抑制谐波峰值、改善系统性能，具有一定的工程应用价值。

Abstract

Passive variable switching frequency sinusoidal pulse width modulation (PVSFSPWM) can effectively reduce the loss and improve the current ripple by reasonably selecting injection function and depth. Aiming at the problem that the injection function and depth are limited in improvements in the system performance under the PVSFSPWM method due to artificial experience

this article presents an optimized PVSFSPWM based on the nondominated sorting genetic algorithm-Ⅱ (NSGA-Ⅱ)

abbreviated as NSGA-Ⅱ-PVSFSPWM. Switching loss and current ripple are used as the optimization objectives

and each switching cycle of the PVSFSPWM is optimized by the NSGA-Ⅱ algorithm to select a reasonable injection function and depth. A 1 kW full-bridge inverter is built. Experimental results show that

compared with the constant switching frequency sinusoidal pulse width modulation (CSFSPWM)

the peak harmonic of the output bridge arm voltage is decreased from 185.77 V to 78.35 V under the proposed method. The current ripple is decreased by 3.92%. The efficiency is improved by 1.32%. Compared to the PVSFSPWM method before optimization

the current ripple is reduced by 2%. The efficiency is improved by 1.04%. The results show that the proposed method can be adopted to effectively suppress the peak value of harmonic and to improve the system performance

which is valuable for engineering applications.

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