A ZVS-ZCS inverter with transformer-assisted commutation

Author

Yaogang ; Khan, Mahamnad Mansoor ; Fei-feng, Ji ; Li-dan, Zhou ; Chenchen

Author_Institution

Dept. of Electr. Eng., Shanghai Jiaotong Univ., China

fYear

2005

fDate

14-17 Dec. 2005

Firstpage

401

Lastpage

406

Abstract

This paper proposes an improved ZVS-ZCS ARCPI (auxiliary resonant-commutated pole inverter) to solve the problems, such as extra losses from auxiliary circuit, variable commutation duration, and poor reliability, which are common in existing ARCPIs. In this enhanced ARCPI, the introduction of commutation forcing voltage greater than half value of DC link voltage, fixed commutation duration, and protection for auxiliary switches, enhances the performance, and also extends its application. Based on the analysis, simulation, and experimentation, this new ARCPI is proved reasonable for use in high reliability application such as DFACTS.

Keywords

invertors; power transformers; switching convertors; zero current switching; zero voltage switching; DC link voltage; ZVS-ZCS inverter; auxiliary resonant-commutated pole inverter; auxiliary switch protection; commutation duration; distribution flexible AC transmission system; transformer-assisted commutation; variable commutation; Circuits; Commutation; Inverters; Resonance; Switches; Switching frequency; Switching loss; Thermal stresses; Zero current switching; Zero voltage switching; Auxiliary resonant commutated pole inverter (ARCPI); Distribution flexible ac transmission system (DFACTS); Zero-current switching (ZCS); Zero-voltage switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2005. ICIT 2005. IEEE International Conference on

Print_ISBN

0-7803-9484-4

Type

conf

DOI

10.1109/ICIT.2005.1600671

Filename

1600671