Parallel Control Strategy of Single-Phase Voltage-Source Inverter Base on Synchronous Signal Bus
Conventional droop-control strategy of parallel inverter regulates the phase and the amplitude of the output voltage according to output active power and reactive power respectively. But for a two-loop feedback control voltage-source inverter, active power and reactive power are related to both the amplitude and the phase of the output voltage. In this paper, the equivalent output impedance of the inverter is derived and the quantitative relationship between active/reactive power and amplitude/phase of output voltage is discussed. Based on which, a parallel inverter control strategy is proposed, with the phase synchronization via bus and output voltage amplitude regulated by the relation of output active power and reactive power. Based on this control technique, the model of parallel inverter system is established. Experimental results show the effectiveness of the control strategy.
Shungang Xu Jianping Xu Taiqiang
School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China College of School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
国际会议
2009国际通信电路与系统学术会议(ICCCAS 2009)(2009 International Conference on Communications，Circuits and Systems)
成都
英文
728-731
2009-07-23（万方平台首次上网日期，不代表论文的发表时间）