微网孤岛模式下风储优化协调控制策略研究
Wind-Storage Optimal Coordinated Control Strategy of Microgrid at Islanded Mode

DOI: 10.12677/SG.2014.45028, PP. 193-200

Keywords: 微网，优化协调控制，变桨距
Microgrid, Optimal Coordinated Control, Pitch Control

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Abstract:

微网的发展促进了风电开发利用效率的提高。针对微网中风电出力不稳、波动较大，严重影响系统电能质量等问题，采用了风力发电与储能协调运行的方式提高系统运行稳定性，并给出了微网系统结构。基于传统的微网多电源协调控制策略，提出了新型的微网孤岛运行模式风储优化协调控制策略。该策略考虑蓄电池荷电状态，充分利用了风机变桨距控制，能够提升微网运行稳定性和可再生能源电能利用率，降低系统运行成本。经过仿真，验证了新型控制策略的有效性。
The microgrid significant evolution enhances the efficiency of wind power exploitation and utili-zation. Aiming at problem that the wind power generation is unstable, the wind-storage structure is used to improve the stability of microgrid. The structure is given in the paper. The new wind- storage microgrid coordinated control strategy is proposed based on the existed microgrid multiple power coordinated control strategy. Considering charged state of batteries and making the best use of pitch control, the new wind-storage microgrid coordinated control strategy can improve the stability of microgrid and effectiveness of distributed generation. The simulation results verify the effectiveness of the strategy.

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