Title :
Modeling and Analysis of Stability for Parallel Inverters Operated with Instantaneous Maximum Current Control Strategy
Author :
Xiong, Rihui ; Lee, Yunfeng ; Zhao, Jixiang
Author_Institution :
Inst. of Inf. Eng., China Jiliang Univ., Hangzhou
Abstract :
The advantages of multi-inverter parallel operation is summarized and the present solutions for circulating current reduction are reviewed. Then a general small-signal model is proposed with the instantaneous maximum current control scheme. The stability of the system is analyzed. The influence of the current-sharing loop is studied with some mathematical analysis and simulation. The performance of the current-sharing loop is investigated. Then two 220 Vac 1 kW inverters with 50 Hz output frequency is built and paralleled to verify the validity of the proposed model and analysis.
Keywords :
electric current control; invertors; stability; current-sharing loop; frequency 50 Hz; instantaneous maximum current control strategy; parallel multi inverter; power 1 kW; small-signal model; system stability; voltage 220 V; Analytical models; Current control; Frequency; Inductors; Information analysis; Inverters; Mathematics; Stability analysis; Systems engineering and theory; Voltage; Multi-inverter parallel; instantaneous maximum current control scheme; small signal model;
Conference_Titel :
Computational Engineering in Systems Applications, IMACS Multiconference on
Conference_Location :
Beijing
Print_ISBN :
7-302-13922-9
Electronic_ISBN :
7-900718-14-1
DOI :
10.1109/CESA.2006.4281911
