Title :
Research on a kind of multiple control strategy for parallel connected inverters
Author :
Fang, Wang ; Yi, Zhang ; Zhen, Wang
Author_Institution :
Naval Aeronaut. & Astronaut. Univ., Yantai, China
Abstract :
A kind of multiple control strategy based on repetitive control is applied in this paper. The inverter transient response characteristic is improved and harmonic distortion of output voltage wave is reduced by this strategy. A distributed control scheme with instantaneous current sharing is developed for redundant parallel inverter power supply system. Current sharing based upon the average current method is realized by using a shared bus to connect all the parallel modules without extra control modules. The experiment results are achieved and the important waveforms are discussed.
Keywords :
PI control; closed loop systems; distributed control; electric current control; harmonic distortion; harmonics suppression; invertors; photovoltaic power systems; power generation control; transient response; voltage control; PI controller; average current method; distributed control; harmonic distortion reduction; instantaneous current sharing; inverter transient response characteristic; multiple control strategy; output voltage wave; parallel connected inverter; photovoltaic inverter power supply; redundant parallel inverter power supply system; repetitive control; voltage-current double closed-loop control; Distributed control; Inverters; Load modeling; Power supplies; Steady-state; Voltage control; parallel connected current sharing; repetitive control; simulation;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037993
