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A research on droop control strategy and simulation for the micro-grid

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4 Author(s)
Yang Xiu ; Department of Electrical Engineering, Shanghai University of Electric Power, Shanghai, China ; Zong Xiang ; Yang Fei ; Zang Hai-yang

Micro-grid is a novel unit integrated by distributed generation access to distributed network, and it is also the trend of the development of the future. Suitable micro-grid control strategy design is the key for ensuring the stability of the micro grid under different operation mode, especially when changing from the grid connected operation to the islanding operation. This paper presents a droop control model consists of the power control loop and the voltage-current close loop control algorithm required for a micro-grid system containing micro turbine, and designs the parameters of the voltage-current close loop controller to make the inverter output show inductance characteristic. According to the simulation, the designed multi loop controller can achieve the smooth changing between the utility connected operation and the islanding operation, proving the effectiveness of the control strategy.

Published in:

Electrical and Control Engineering (ICECE), 2011 International Conference on

Date of Conference:

16-18 Sept. 2011