Modeling, analysis, and implementation of parallel multi-inverter systems with instantaneous average-current-sharing scheme

被引：207

作者：

Sun, X ^{[1
]}

Lee, YS

Xu, DH

机构：

[1] Hong Kong Polytech Univ, Dept Elect & Informat Engn, Kowloon, Hong Kong, Peoples R China

[2] Zhejiang Univ, Dept Elect Engn, Hangzhou 310027, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2003年 / 18卷 / 03期

关键词：

load sharing; multi-inverter system; parallel operation;

D O I：

10.1109/TPEL.2003.810867

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：844 / 856

页数：13

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