2MW直驱式风电机组的建模与仿真

摘要

一台2MW直驱式风电机组是一个包含复杂的非线性、强耦合以及不确定性的机电系统,主要由风力机、永磁同步电机以及全功率变频器组成.从风力机的空气动力学分析、永磁同步电机的等效电路以及全功率变频器能量守恒定律入手,建立了风电机组的数学模型；并基于该模型,分别给出了它在Matlab下的开环与闭环仿真结果,仿真结果表明了模型的正确性.%A2 MW direct-drive wind power system is an electrical and mechanical system with complex nonlinear, strong coupling and the uncertainty .which is mainly composed of the wind turbine, permanent magnet synchronous generator (PMSC) and the full power converter. The wind turbine aerodynamics analysis,the equivalent circuit of PMSC,and the full power converter with the law of conservation of energy were proposed,based on that,the mathematical models of wind power systems were established. The open loop and closed loop simulation results were proposed. The simulation results show the correctness of the model.