Coordinated control strategy of flywheel energy storage array for micro-grid

doi:10.12028/j.issn.2095-4239.2018.0115

Abstract

Abstract: The coordinated control strategy of flywheel energy storage array from parallel to the same DC bus is studied in this paper. The change rate of charge state (SOC) under three classical power control strategies is deduced and analyzed. An improved coefficient droop control strategy is put forward. The virtual impedance of improved coefficient droop control strategy is adopted to improve the accuracy of power allocation to solve the static error control problem caused by low voltage of micro-grid. Finally, a micro-grid model with wind farm is established, and the effectiveness of the above control strategy is verified by simulation.

Key words: flywheel energy storage array, state of charge, micro-grid, coordinated control strategy, droop control strategy

CLC Number:

TQ028.8

JIN Chenhui, JIANG Xinjian, DAI Xingjian. Coordinated control strategy of flywheel energy storage array for micro-grid[J]. Energy Storage Science and Technology, 2018, 7(5): 834-840.

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