Dual Mode PV Inverter with Energy Storage Function

Abstract

Abstract:

The dual mode photovoltaic power generation with energy storage function has grid-connected mode and off-grid mode. It can provide energy for users no matter what the grid is normal or abnormal, or no matter what it is during day or night. So it has been widely used. The hardware and software of the dual mode photovoltaic inverter are designed in the paper, and the switching strategies between the two modes are studied, the prototype is developed and simulation model is built. The results of simulation and experiment show that the prototype has realized the smooth transition between the two modes and it has high efficiency and low voltage distortion rate.

Key words: P/Q control, U/f control, islanding protection, the switching between off-grid mode and grid-connected mode

CLC Number:

TM315

Zheng Changbao,Huang Juan,Su Junsen. Dual Mode PV Inverter with Energy Storage Function[J]. Journal of Electrical Engineering, 2015, 10(8): 35-39.

Figures/Tables 11

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References 8

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