A control strategy for grid-interactive inverters with rectifier loads

作者：Yao Zhilei^*; Xiao Lan; He Liu; Wei Xing

来源：Automation of Electric Power Systems, 2010, 34(22): 80-84.

• Distributed power supplies
• Grid connected inverters
• Grid current
• Harmonic currents
• Rectifier load

A control strategy for grid-interactive inverters with rectifier loads is proposed. The utility-connected inverters can operate at both stand-alone and grid-connected modes. The impact of the rectifier loads on the grid current is analyzed. The influence of the rectifier load and filter capacitor on the grid current can be eliminated by adding the rectifier load current into the current loop, and the waveform quality of the grid current can be improved. The control method is simple and easy to be implemented. Simulation and experimental results illustrate the improvement of the waveform quality of the grid current and the external characteristics of the inverter at stand-alone mode.

• 出版日期2010
• 单位南京航空航天大学