【作者】 张照彦；

【导师】 马永光； 原涛；

【作者基本信息】 华北电力大学 ， 控制工程， 2011， 硕士

【摘要】 风力发电是最有发展前途的可再生能源形式之一,对于节约能源、保护环境和促进可持续发展具有重要作用。变速恒频风力发电仿真建模是目前国内研究的热点,也是本文研究的主要内容。本文首先介绍变速恒频双馈风电机组的基本结构和主要部件,说明了变速双馈风电机组实现变速恒频运行的工作原理;然后分析风电机组数学模型,主要包括风速模型、风轮模型、传动链模型、双馈电机模型、变流器模型;利用矢量控制方法得到定子磁链定向下的双馈电机矢量控制方程,并构建了双馈电机发电和并网矢量控制框图;最后在STAR-90仿真支撑平台中建立风电机组及电网仿真模型并进行仿真,从仿真角度验证本文理论分析和控制方法的正确性和有效性。更多还原

【Abstract】 Wind power is the most promising form of renewable energy, which has an important role for energy conservation, environmental protection and promoting sustainable development. VSCF(variable speed constant frequency) wind power generation Simulation Modeling is the main direction at home, is the main contents of this paper. This paper introduces the double-fed VSCF wind turbine’s basic structure and major components, and illustrates working principle of the double-fed variable speed wind turbine. Then analyzes the mathematical model of wind turbine, include wind speed model, wind wheel model, the drive train model, doubly-fed induction generator model and the converter model. This paper obtains doubly-fed generator equation under the stator flux oriented vector control by vector control, and constructs vector control block diagram of doubly-fed generator power generation and grid. Finally, wind turbines and power simulation model was established on STAR-90 simulation supporting platform and simulated. it is proved the correctness and effectiveness of the theoretical analysis and control methods from the simulation point of view.更多还原