【摘要】 针对风力发电系统动态仿真模型在风电测试中的重要性,在分析风力机、变流器、双馈风电机组等数学模型的基础上,进行风力发电系统通用的定子磁链定向和电网电压定向控制系统设计。采用PSCAD/EM TDC仿真软件建立了变速恒频双馈风电系统的动态仿真模型,针对并网点短路故障和风速变化时风力发电系统的暂态运行特性进行了仿真研究;最后基于所建模型进行了试验验证,实测结果与仿真结果相吻合,验证了所建动态模型的有效性。更多还原

【Abstract】 According to the importance of dynamic simulation model in the test of wind power system,the general stator flux oriented and voltage oriented control system of wind power generation system was designed based on the analysis of wind turbine,converter,double fed wind turbine and other mathematical models. A dynamic simulation model of variable speed constant frequency double fed wind power generation system was established in PSCAD/EMTDC simulation software,and then a simulation study for the transient operating characteristics of wind power generation system was studied under network short circuit fault and wind speed changes. Finally,test verification was done based on the designed model,the measured and simulation results verify the validity of the established dynamic model.更多还原