摘要
运用定子磁场定向矢量控制的分析方法,分别建立了双馈发电机和转子励磁控制系统的数学模型,并通过定转子电压相位角φ12将两者联系起来,推导出双馈发电机及其控制系统的一体化矢量控制模型.该模型不仅反映了双馈发电机的参数、励磁控制系统硬件结构和转子励磁控制参数,而且从理论上揭示了双馈发电机兼有感应电机和同步电机的运行特点以及应用于变速恒频发电系统中的技术优势.仿真结果表明所建立数学模型的正确性及双馈发电机具有良好的功率控制特性.
A mathematic model based on a doubly fed generator and its rotor excitation control system, which is related with the phase angle φ12 between the stator and rotor voltage, is established. Meanwhile, a unified vector control model in synchronous rotating reference frame is deduced. The model not only reflects the relationship between the generator parameters, hardware structure and parameters of the rotor excitation control system, but also exhibits in theory that the doubly fed generator has the common feature of induction machine and synchronous machine as well as the technical superiority of the doubly fed generator in the variable speed constant frequency （VSCF） generation system. The simulation results indicate that the proposed model is suitable for the study on doubly fed excitation control strategy and the design of the excitation control system.
出处
《沈阳工业大学学报》
EI
CAS
2006年第2期202-205,共4页
Journal of Shenyang University of Technology
基金
国家863高技术基金资助项目(2001AA512022-S5)
关键词
双馈发电机
励磁控制系统
矢量控制
数学模型
仿真
doubly fed generator
excitation control system
vector control
mathematic model
simulation
