A droop control strategy based on drooping coefficient with adaptively changing steps

作者：Zhang Dong; Zhuo Fang; Shi Hongtao^*; Geng Zhiqing; Zhai Hao

来源：Automation of Electric Power Systems, 2014, 38(24): 20-25 and 47.

DOI：10.7500/AEPS20131231006

• Changing step
• Distributed generation system
• Droop control
• Droop control strategies
• Islanding
• Micro grid
• Self adaptation
• Voltage fluctuations

Owing to the randomness of the output power in a distributed generation system, the voltage of the bus in an islanding microgrid will fluctuate to an extent that will cause detrimental effects on the payloads connected to that microgrid. A droop control strategy based on drooping coefficient with adaptively changing steps is proposed to suppress the voltage fluctuation of the microgrid bus bar induced by output power swings of a distributed generation system. Simulations and experiments arc conducted to validate the proposed algorithm. Results show that a microgrid connected to a distributed generation system is able to maintain the stability of its voltage of the bus by adopting the algorithm based on droop coefficient with adaptively changing steps.

• 出版日期2014