上海交通大学学报

上海交通大学学报 >

2025 , Vol. 59 >Issue 7: 952 - 961

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.426

新型电力系统与综合能源

单相高频逆变器无窄脉冲高质量调制方法

  • 张国澎 ,
  • 陈东安 ,
  • 陶海军 ,
  • 刘永辉 ,
  • 马原
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  • 1.河南理工大学 电气工程与自动化学院,河南 焦作 454003
    2.河南省煤矿装备智能检测与控制重点实验室,河南 焦作 454003
    3.河南洛宁抽水蓄能有限公司,河南 洛阳 471700
张国澎(1974—),副教授,从事大功率电力电子变换器、电能质量等研究.
陈东安,硕士生;E-mail:cda4702160168@163.com.

收稿日期: 2023-08-28

  修回日期: 2024-01-03

  录用日期: 2024-01-17

  网络出版日期: 2024-02-06

基金资助

国家自然科学基金(52267018);河南省高校基本科研业务费专项资金(210423)

收起

Single-Phase High Frequency Inverter Narrow Pulse High-Quality Modulation Method

  • ZHANG Guopeng ,
  • CHEN Dongan ,
  • TAO Haijun ,
  • LIU Yonghui ,
  • MA Yuan
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  • 1. School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454003, Henan, China
    2. Henan Key Laboratory of Intelligent Detection and Control of Coal Mine Equipment, Jiaozuo 454003, Henan, China
    3. Henan LuoningPumped Storage Co., Ltd., Luoyang 471700, Henan, China

Received date: 2023-08-28

  Revised date: 2024-01-03

  Accepted date: 2024-01-17

  Online published: 2024-02-06

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摘要

针对高频单相两电平逆变器运行于高调制比下存在的窄脉冲问题,分析了正弦脉宽调制(SPWM)策略下调制比、载波频率和死区对窄脉冲的影响,得出调制波周期内的窄脉冲分布规律.在此基础上提出一种无窄脉冲的高质量调制方法,消除了高频逆变器调制周期内的窄脉冲.同时,为了解决该方法在调制波峰谷处存在的波形畸变问题,设计一种三拍载波预测法,通过对窄脉冲区域内调制方法的修正,进一步改善了交流侧输出波形质量.最后,搭建了单相全桥逆变器实验平台,对所提无窄脉冲高质量调制方法的可行性和有效性进行验证.

关键词： 窄脉冲; 波形畸变; 高频逆变; 死区; 单相

本文引用格式

张国澎 , 陈东安 , 陶海军 , 刘永辉 , 马原 . 单相高频逆变器无窄脉冲高质量调制方法[J]. 上海交通大学学报, 2025 , 59(7) : 952 -961 . DOI: 10.16183/j.cnki.jsjtu.2023.426

Abstract

To analyze the narrow pulse issue of high-frequency single-phase two-level inverter running at high modulation ratio, the effects of modulation ratio, carrier frequency, and dead time on the narrow pulse under sinusoidal pulse width modulation (SPWM) strategy are examined, and the distribution law of the narrow pulse within the modulating wave period is derived. Based on this analysis, a high-quality modulation method without narrow pulses is proposed to eliminate narrow pulses within the modulation cycle of high-frequency inverters. To address the waveform distortion issue at the modulation peak and valley in this method, a three-beat carrier prediction method is designed to further improve the quality of the alternating current (AC) output waveform by modifying the modulation within the narrow pulse area. Finally, a single-phase full bridge inverter experimental platform is built to verify the feasibility and effectiveness of the proposed narrow pulse-free high-quality modulation method.

Key words： narrow pulse; waveform distortion; high-frequency inverter; dead time; single phase

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