基于模型预测VSFPWM的串联绕组逆变器电磁干扰抑制研究*

doi:10.11985/2024.01.022

电气工程学报 ›› 2024, Vol. 19 ›› Issue (1): 206-215.doi: 10.11985/2024.01.022

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基于模型预测VSFPWM的串联绕组逆变器电磁干扰抑制研究^*

黄霁蓝(), 张家华(), 刘自程(), 汪志远(), 赵炫()

华中科技大学电气与电子工程学院武汉 430070

收稿日期:2023-05-09 修回日期:2023-08-24 出版日期:2024-03-25 发布日期:2024-04-25
通讯作者: 刘自程，男，1989年生，博士，副研究员。主要研究方向为电力电子与电力传动。E-mail：liuzc@hust.edu.cn
作者简介:黄霁蓝，女，2001年生。主要研究方向为电力电子与电力传动。E-mail：u201912127@hust.edu.cn;
张家华，男，2001年生。主要研究方向为电力电子与电力传动。E-mail：u201912023@hust.edu.cn;
汪志远，男，1999年生，硕士研究生。主要研究方向为电机控制。E-mail：m202172098@hust.edu.cn;
赵炫，男，1995年生，博士研究生。主要研究方向为电力电子变换器系统控制及电磁干扰抑制。E-mail：zhaoxuan20@hust.edu.cn
基金资助:
大学生创新创业训练计划资助项目(S202110487074)

Research on EMI Suppression in Series-end Winding Inverters Based on Real-time Model Predictive VSFPWM

HUANG Jilan(), ZHANG Jiahua(), LIU Zicheng(), WANG Zhiyuan(), ZHAO Xuan()

School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430070

Received:2023-05-09 Revised:2023-08-24 Online:2024-03-25 Published:2024-04-25

摘要/Abstract

摘要：

脉宽调制(Pulse width modulation，PWM)逆变器开关过程产生的共模电磁干扰(Electromagnetic interference，EMI)会对系统产生显著的负面影响。以新型的串联绕组逆变拓扑结构为研究对象，采用基于电流纹波预测模型的变开关频率脉宽调制技术(Variable switching frequency PWM，VSFPWM)，同时考虑实际逆变系统中电感饱和效应的影响，实现对电流纹波的精确控制，完成共模电磁干扰的抑制和开关损耗的降低。提出串绕组拓扑下考虑电感饱和的模型预测变开关频率策略，通过仿真和试验对比分析不同变频开关频率调制策略下的电磁干扰抑制效果、输出电流质量及开关损耗等性能。仿真和试验表明该策略能够有效抑制共模电磁干扰、降低开关损耗，并确保输出电流的波形质量。

关键词: 串联绕组逆变拓扑, 模型预测控制, 变开关频率, 电磁干扰抑制

Abstract:

The common-mode electromagnetic interference(EMI) generated by the switching process of pulse width modulation (PWM) inverters has a significant negative impact on the system. The new series-end winding inverter topology is used as the research object, and the variable switching frequency pulse width modulation(VSFPWM) technique based on the current ripple prediction model is adopted to realize the accurate control of current ripple and accomplish the spreading suppression of common-mode EMI and the reduction of switching loss while considering the effect of inductor saturation in the actual inverter system. The model predictive VSFPWM strategy considering inductor saturation in series-end winding topology is proposed, and the performance of EMI suppression effect, output current quality and switching loss under different VSFPWM strategies are compared and analyzed by simulation and experiment, which verify that the proposed strategy can effectively suppress common-mode EMI, reduce switching losses, and ensure satisfying output current waveforms.

Key words: Series-end winding inverter, model predictive control, variable switching frequency, EMI suppression

中图分类号:

TM561

黄霁蓝, 张家华, 刘自程, 汪志远, 赵炫. 基于模型预测VSFPWM的串联绕组逆变器电磁干扰抑制研究^*[J]. 电气工程学报, 2024, 19(1): 206-215.

HUANG Jilan, ZHANG Jiahua, LIU Zicheng, WANG Zhiyuan, ZHAO Xuan. Research on EMI Suppression in Series-end Winding Inverters Based on Real-time Model Predictive VSFPWM[J]. Journal of Electrical Engineering, 2024, 19(1): 206-215.

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参考文献 20

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参数	数值
母线电压V_dc/V	100
调制比m	0.2
负载电阻R/Ω	2
负载电感初始值L₀/μH	700
基波频率f₀/Hz	50
固定开关频率f_s/kHz	20

策略	THD(%)	电流纹波峰峰值/A
CSFPWM	5.22	1.018
RSFPWM	5.39	1.063
不考虑饱和的模型预测	7.62	1.452
考虑饱和的模型预测	7.60	1.018

开关策略	电流纹波峰峰值/A	开关次数	E_SW	THD(%)
CSFPWM	1.02	400	3 429	6.95
考虑饱和VSFPWM	1.02	366	3 155	7.61
不考虑饱和VSFPWM	1.02	304	2 606	7.59

基于模型预测VSFPWM的串联绕组逆变器电磁干扰抑制研究^*

Research on EMI Suppression in Series-end Winding Inverters Based on Real-time Model Predictive VSFPWM

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