基于直驱永磁同步风力发电系统的控制器设计与研究

Design of direct-drive permanent magnet synchronous wind power generator system controller

直驱永磁同步风力发电系统采用了背靠背双PWM变流器,基于解耦控制策略的PI控制器用于实现对系统机侧和的网侧的有效控制。工程上PI参数多采用试验加试凑的方式,造成大量人力浪费。本文对直驱永磁同步风力发电系统进行数学建模,并提出一种基于粒子群优化算法的PI参数优化,在风速突变条件下对系统仿真分析,结果表明利用粒子群优化算法的PI控制参数能较好的拟合真实值,动态响应快。进而验证了该方法在工程应用中的可行性和有效性。

The direct-drive permanent magnet synchronous wind power generation system uses a back-to-back double PWM converter. PI controller based on decoupling control strategies used to control machine side and the network side of the system. Manual tuning method wastes a lot of manpower. The paper analyses mathematical model of direct-drive permanent magnet synchronous wind power generation system. Under the condition of wind velocity mutation, the simulation result of PMSG system after PI parameter optimization shows that the PI control rules with PSO algorithm can fit the real value of the convergence faster. And the PSO controller has stronger adaptability and better results.