Junction Temperature Balancing Strategy of Model Predictive Control for Single-phase PWM Rectifiers With Periodic Switching Sequence Alternation

LIU Bi; CHEN Xu; WANG Zhen; HU Cungang; SONG Wensheng

doi:10.13334/j.0258-8013.pcsee.250268

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Junction Temperature Balancing Strategy of Model Predictive Control for Single-phase PWM Rectifiers With Periodic Switching Sequence Alternation

更新时间：2026-10-12

- Junction Temperature Balancing Strategy of Model Predictive Control for Single-phase PWM Rectifiers With Periodic Switching Sequence Alternation
- Vol. 46, Issue 2, Pages: 768-779(2026)
- 作者机构：
  
  1. 安徽大学电气工程与自动化学院,安徽省,合肥市,230601
  2. 安徽省先进电力电子与电能变换工程研究中心,安徽省,合肥市,230601
  3. 西南交通大学电气工程学院,四川省,成都市,610031
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.250268
  CLC：
- Published：2026
- 稿件说明：
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LIU Bi, CHEN Xu, WANG Zhen, et al. Junction Temperature Balancing Strategy of Model Predictive Control for Single-phase PWM Rectifiers With Periodic Switching Sequence Alternation[J]. 2026, 46(2): 768-779.
DOI：

LIU Bi, CHEN Xu, WANG Zhen, et al. Junction Temperature Balancing Strategy of Model Predictive Control for Single-phase PWM Rectifiers With Periodic Switching Sequence Alternation[J]. 2026, 46(2): 768-779. DOI： 10.13334/j.0258-8013.pcsee.250268.

摘要

文中以单相两电平脉宽调制(pulse width modulation，PWM)整流器为研究对象，提出一种基于开关序列周期轮换的模型预测结温平衡控制策略。首先，介绍模型预测控制算法的基本原理与实现方式；其次，建立功率开关器件的基波周期损耗与结温数学模型，量化分析两种传统开关序列的器件结温分布特点；在此基础上，给出所提开关序列周期轮换策略的原理。所提策略以基波周期为轮换周期，两种传统开关序列交替作用，实现各IGBT、二极管基波周期稳态结温的均衡；最后，对所提策略进行计算机仿真和实验验证，仿真与实验结果验证所提策略的正确性与有效性。

Abstract

A junction temperature balancing strategy of model predictive control with periodic switching sequence alternation is proposed for single-phase two-level pulse width modulation (PWM) rectifiers. Firstly

the basic principle and implementation of model predictive control method are introduced. Secondly

the mathematical model of fundamental power loss and junction temperature for switching devices is modeled to quantitatively analyze the junction temperature distribution characteristic of the two conventional switching sequences. On this basis

the principle of the proposed periodic switching sequence alternation strategy is presented. The proposed strategy adopts the fundamental period as the alternation cycle

and these two conventional switching sequences alternate

which can achieve the balancing of the steady-state junction temperature of each IGBT and diode over one fundamental period. Finally

the proposed strategy is verified by computer simulations and experimental tests.

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