摘要
本文针对风力发电机组的不确定性及多干扰的问题,以追踪最大风能作为有功功率控制目标。提出了采用模糊逻辑推理控制的方法得到低风速时发电机的参考转速,利用自适应最优模糊控制与直接转矩控制相结合的方法来控制发电机的电磁转矩的方案,并且使用Matlab软件对该方案应用于1.5MW双馈型风电机组系统进行仿真研究。仿真结果表明了在风速变化时,发电机实际转速可以很快跟踪最佳理论值,转矩平衡,变速恒频风电机组功率输出具有较好的跟踪效果,系统性能稳定,达到了最优功率的目标。
In this paper,considering many uncertain factors and disturbances of wind power generating systems,taking maximum wind power tracking as active power control target.It proposes to use fuzzy logic inference control obtaining reference rotation of generator below rated wind speed,combining adaptive optimal fuzzy and direct torque（DTC） to control generator torque,the proposed method is simulated with Matlab based on SUT-1500 doubly-fed wind turbine prototype.The simulation results show that when changes in wind speed,actual rotation speed of generator tracks optimal one quickly and torque is balance,output power of VSCF wind turbine has better tracking effects,the system performance is stable,and reaching the target of optimal power.
出处
《电气技术》
2011年第8期1-4,共4页
Electrical Engineering
