Abstract:The power output of wind generator (WG) is unpredicted and irregular, and large scale wind power integrated to grid influences the power system stability heavily. The multi-functional flexible power conditioner (FPC) is a flywheel energy storage system based on doubly fed induction generator (DFIG), which can perform functions including energy storage, active and reactive power generation. To enhance the characteristics of WG power output, a novel structure of FPC associated to WG (WG-FPC) is proposed. According to the structure and control targets of WG-FPC, the control strategies are studied, regulating the active power of the system used fuzzy logic inference and machine terminal voltage is controlled by regulating FPC reactive power. The model of WG-FPC is built up and simulation is done using Matlab/Simulink. The simulation results show the feasibility and efficiency of the proposed WG-FPC and control strategies, and the operation characteristics of the WG connected to the grid are enhanced evidently.
刘世林, 孙海顺, 顾明磊, 文劲宇. 一种新型风力发电机与飞轮储能联合系统的并网运行控制[J]. 电工技术学报, 2012, 27(4): 248-254.
Liu Shilin, Sun Haishun, Gu Minglei, Wen Jinyu. Novel Structure and Operation Control of a Flywheel Energy Storage System Associated to Wind Generator Connected to Power Grid. Transactions of China Electrotechnical Society, 2012, 27(4): 248-254.
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