采用转子动能控制方法对直驱永磁同步风力发电机组输出的有功功率进行功率平滑控制,并对控制效果进行优化。首先,分析转子动能控制造成功率损失的原因,并据此提出一种能够补偿功率损失的平滑指令,结合风电机组稳定性分析,得到风电机组采用功率平滑控制的条件,以此采用Matlab/Simulink进行仿真分析,验证所提控制策略的有效性。然后,利用模糊逻辑控制算法（FLC）进行优化控制,以提高风电机组输出有功功率平滑度和风能利用率,并改善由于功率指令切换造成的平滑度下降问题。最后,通过Matlab/Simulink进行仿真分析,对比不同参数下的优化效果,验证所提控制策略和优化方法的有效性。
Abstract
In this paper,the rotor kinetic energy control is used and optimized to smooth the active power output of direct-drive permanent magnet synchronous generator（D-PMSG）. Firstly,the mechanism of power loss caused by rotor kinetic energy control is analyzed,based on which a power smoothing strategy is proposed to compensate the power loss. By analyzing the stability of wind turbine,the applicability of power smoothing strategy is obtained. Then,a fuzzy control algorithm （FLC） is used to optimize the control,which aims to improve the smoothness and the utilization of the output power, as well as to reduce the smoothness degradation caused by power command switching. At last,the effectiveness of the proposed control strategy and optimization algorithm is verified by Matlab /Simulink simulation.
关键词
转子动能 /
模糊控制 /
稳定性 /
补偿 /
直驱永磁同步风力发电机组
Key words
rotor kinetic energy /
fuzzy control /
stability /
compensate /
direct-drive permanent magnet synchronous generator（D-PMSG）
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