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以液压传动型风力发电系统为研究对象,针对液压调速回路元件选用的实际情况,建立了定量泵-双变量马达调速系统、永磁同步发电机及风轮数学模型,采用AMESim软件建立液压调速系统仿真模型,采用MATLAB/Simulink软件建立永磁同步发电机及风轮仿真模型,运用联合仿真的方法,理论分析了变速恒频发电机的转速控制。研究表明,定量泵-双变量马达液压调速系统能实现永磁同步发电机转速稳定控制。
Taking hydraulic transmission type wind power generation system as the research object, aiming at the actual situation of the components of the hydraulic speed regulation loop, the mathematical model of the variable displacement pump - double variable speed motor, permanent magnet synchronous generator and wind turbine was established. AMESim software was used to establish the hydraulic pressure Speed system simulation model, the permanent magnet synchronous generator and the wind turbine simulation model are established by using MATLAB / Simulink software, and the speed control of the variable speed constant frequency generator is theoretically analyzed by the method of co-simulation. Research shows that the quantitative pump - double variable motor hydraulic speed control system can achieve permanent magnet synchronous generator speed control.