Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16105
Title: Modeling, analysis, and implementation of parallel multi-inverter systems with instantaneous average-current-sharing scheme
Authors: Sun, X
Lee, YS
Xu, D
Keywords: Load sharing
Multi-inverter system
Parallel operation
Issue Date: 2003
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on power electronics, 2003, v. 18, no. 3, p. 844-856 How to cite?
Journal: IEEE transactions on power electronics 
Abstract: Parallel multi-inverter systems can be designed to have the advantages of expandable output power, improved reliability, and easy N + X redundancy operation. However, a current-sharing control scheme has to be employed to enable the inverters to share the load current equally. A multi-inverter system with instantaneous average-current-sharing scheme is presented in this paper. By introducing a disturbance source to represent all the sources that may cause current unbalances, a model of the system can be built. Some key issues are discussed based on the model, including stability of the current-sharing controller, impedance characteristics and voltage regulation. Three experimental 110 Vac/1.1 KVA inverters are built and paralleled to verify the theoretical predictions.
URI: http://hdl.handle.net/10397/16105
ISSN: 0885-8993
EISSN: 1941-0107
DOI: 10.1109/TPEL.2003.810867
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