An Inverter Parallel Control Strategy Research Based on Virtual Impedance

doi:10.11985/2018.08.002

Abstract

Abstract:

When multiple inverters are operated in parallel, because the design parameters and connection impedance of each inverter are different, the equivalent line impedance of each inverter module is also different. Therefore, system circulation will often occur, and it will lead to system instability. In this paper, the inverter parallel operation system is analyzed and a method based on the virtual impedance parallel operation of the inverter is proposed to suppress the circulation.

Key words: Parallel inverter, circulation analysis, master-slave control strategy, virtual impedance

CLC Number:

TM464

Chen Wei,Zhao Qiang. An Inverter Parallel Control Strategy Research Based on Virtual Impedance[J]. Journal of Electrical Engineering, 2018, 13(8): 7-11.

Figures/Tables 8

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