摘要
介绍了变速恒频双馈风电机组的基本结构,建立了双馈风电机组在d-q坐标系下的动态数学模型。应用Matlab/Simulink搭建了系统仿真模块,并对并网型双馈风电机组的动态稳定性做了仿真试验研究,结果表明:在风电系统中利用变速技术后可以提高风能的利用率,改善电力系统稳定性;变速双馈风电机组具有低电压穿越功能。
The basic structure of variable speed constant frequency （VSCF） double-fed wind turbine unit is presented and the dynamic mathematical model of VSCF double-fed wind generator unit in d-q coordinate system is established. By use of Matlab/Simulink the simulation modules for VSCF double-fed wind turbine unit are set up and the dynamic stability of double-fed wind generator connected into power grid is simulated. Simulation results show that the established model is correct. The utilization rate of wind energy can be greatly heightened by applying variable speed technology to wind power generation system and power system stability can also be improved. Variable speed double-fed wind turbine unit have function of low voltage ride through （LVRT）.
出处
《电网技术》
EI
CSCD
北大核心
2007年第24期63-65,76,共4页
Power System Technology
基金
国家自然科学基金资助项目(50667002)~~
关键词
风力发电
变速双馈风电机
动态数学模型
低电
压穿越功能
wind power
variable speed double-fed windgenerator
dynamic mathematic model
low voltage ridethrough （LVRT）
