A compensation strategy for parallel inverters to achieve precise weighting current distribution

Author

Hsieh, H.-M. ; Wu, T.-F. ; Wu, Y.-E. ; Nien, H.-S. ; Wu, Y.-E.

Author_Institution

Dept. of Electr. Eng., Nat. Chung Chen Univ., Ming-Hsiung, Taiwan

Volume

2

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

954

Abstract

This paper proposes a compensation strategy for parallel inverters to achieve weighting current distribution. In addition to the conventional current weighting distribution control (CWDC), the reference current of each inverter is fed back as a compensation signal to improve weighting current distribution. With the proposed compensation strategy, the output current of each inverter module can precisely track weighting current command. Experimental and simulated results from a three-inverter system with equal or different power ratings and with different kinds of loads have demonstrated the feasibility of the proposed strategy.

Keywords

compensation; current distribution; distributed control; electric current control; invertors; compensation strategy; current weighting distribution control; parallel inverters; power ratings; three-inverter system; Circuits; Control systems; Current distribution; Digital control; Frequency; Inverters; Power system reliability; Power system simulation; Voltage control; Weight control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518463

Filename

1518463