DocumentCode :
1127209
Title :
Parallel-Inverter System With Failure Isolation and Hot-Swap Features
Author :
Wu, Tsai-Fu ; Hsieh, Hui-Ming ; Wu, Yu-En ; Chen, Yu-Kai
Author_Institution :
Nat. Chung Cheng Univ., Chia-Yi
Volume :
43
Issue :
5
fYear :
2007
Firstpage :
1329
Lastpage :
1340
Abstract :
This paper presents the analysis, design, and implementation of a parallel-inverter system with failure isolation and hot-swap features. The system is controlled with a system control unit to achieve output voltage regulation, inverter synchronization, and the aforementioned features. By incorporating a current- weighting-distribution control, the system allows inverters with identical or different power ratings. The failure isolation feature is achieved with a scanning circuit, a resistor-capacitor filter, and transistors, which are also used in achieving the hot-swap one. In the proposed system, power capacity can be readily expanded, and inverter-failure disturbance can be correspondingly reduced. Experimental results that are obtained from a six-inverter system have illustrated the discussed features and significantly demonstrated its feasibility, improving system reliability, and stability.
Keywords :
invertors; voltage control; current weighting distribution control; failure isolation; hot swap features; inverter synchronization; output voltage regulation; parallel inverter system; resistor capacitor filter; scanning circuit; Centralized control; Circuits; Control systems; Current control; Current distribution; Frequency; Inverters; Power system reliability; Pulse power systems; Voltage control; Failure isolation; hot-swap feature; parallel-inverter system; scanning circuit;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.2007.904432
Filename :
4305340
Link To Document :
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