• Home|About JOPS|Editorial Board| Ethics Statement|Indexed-in|Contact us|Peer Review|Chinese
Latest Papers more>>
YE Manyuan,ZHANG Junfei,CHEN Le.Improved PWM Control Method for Five-switch H-bridge Inverter[J].JOURNAL OF POWER SUPPLY,2020,18(3):116-123
Improved PWM Control Method for Five-switch H-bridge Inverter
Received:May 30, 2018  Revised:January 19, 2019
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2020.3.116
Keywords:five-level inverter  five-switch H-bridge inverter  unipolar frequency doubling  carrier phase-shift pulse width modulation
Fund Project:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)
        
AuthorInstitutionEmail
YE Manyuan School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang , China
ZHANG Junfei School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang , China
CHEN Le School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang , China
Hits: 240
Download times: 273
Abstract:
      To solve the problem that the traditional cascaded five-level inverter requires many switching devices, a five-switch H-bridge inverter topology, which combines an auxiliary switching circuit with an H-bridge circuit, is introduced in this paper. According to the characteristics of the working principle for this topology, its pulse width modulation(PWM) strategy is studied, and an improved PWM control method based on carrier phase-shift PWM is proposed. Based on the two-cell H-bridge cascade, the waveforms of five-level phase voltage are obtained by the unipolar frequency doubling CPS-PWM modulation method, and the five-level voltage waveforms are taken as the output target waveforms of the five-switch H-bridge inverter. In addition, the PWM pulse signals are inversely derived with the combination of the inverter’s four operating modes. Finally, the feasibility and validity of this topology and its control method were proved by simulation and experimental results.
Close