A novel three-phase three-level ZVZCS DC-DC converter using phase-shift PWM strategy

Author

Kongwirat, Thammachat ; Jangwanitlert, Anuwat

Author_Institution

Dept. of Electr. Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2014

fDate

14-17 May 2014

Firstpage

1

Lastpage

4

Abstract

A 3-Phase 3-Level DC-DC Converter is used for high electric applications. In this paper, all power semiconductor switches are operated under Soft-Switching conditions. The outer-switches are operated within ZVS conditions by using charge transfer through flying capacitors, while the innerswitches are operated within ZVZCS conditions by using leakage inductances and blocking capacitors. Also, this paper describes the operation modes under ZVS and ZCS conditions. In addition, the simulation and experimental results are compared. The practical test is at 5.5 kW rated power and efficiency of 93.40%.

Keywords

DC-DC power convertors; PWM power convertors; charge exchange; power semiconductor switches; switching convertors; zero current switching; zero voltage switching; blocking capacitors; charge transfer; flying capacitors; phase-shift PWM strategy; power 5.5 kW; power semiconductor switches; three-phase three-level ZVZCS DC-DC converter; zero voltage zero current switching; Capacitors; Charge transfer; Power systems; Pulse width modulation; Switches; Zero current switching; Zero voltage switching; 3-Phase 3-Level; Blocking capacitors; Soft-Switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2014 11th International Conference on

Conference_Location

Nakhon Ratchasima

Type

conf

DOI

10.1109/ECTICon.2014.6839733

Filename

6839733