关键词: 永磁同步风力发电机, 最大功率追踪控制, 多变量、多目标耦合优化, Ansoft精确建模, 电磁耦合仿真

Abstract: Aiming at high performance requirements and difficulty of debugging,long period for research and production of megawatt offshore permanent magnet generator system,the field-circuit coupled simulation research method which combined design and control optimization for generator was proposed.This method aimed at multi parameters coupled for performance effect of generator with skew pole and slot, and the model dependence of PI control strategy,size parameters of generator were optimized by using multivariable multiobjective coupled optimization,generator accurate model was established by using Ansoft finite element method.The generator side double closed-loop PI was verified by the field-circuit coupled simulation on Maxwell and Simplorer,dynamics start-up process of generator was simulated under four kinds of wind speed interfere,electronics and magnetics coupled conduced to parameters perturb.The simulation results verified the feasibilities of maximum power point tracking for system.