矩阵变换器励磁的双馈感应风力发电系统研究

结合双馈感应电机(DFIG)的特点和变速恒频交流励磁发电技术、矩阵变换器及矢量控制技术的优点,导出了双馈电机矢量控制下的数学模型,并建立了矩阵变换器励磁的双馈感应变速恒频风力发电系统定子磁链定向下的矢量控制系统框图.实现了风能最大功率点的跟踪,有功无功功率的独立调节.用c语言和Matlab仿真,其结果体现了系统的优良特性,证明了该方案的正确性和有效性.

Research of DFIG Wind Power Generator System Exited by Matrix Converter

Combined with the characteristic of Doubly Fed Induction Generator (DFIG) and the advantages of Variable-Speed Constant Frequency (VSCF) with AC-excited generation technique, matrix converter and vector control scheme, the DFIG's vector control model was deduced and the stator flux-oriented vector controller block diagram of the VSCF DFIG was developed excited by a matrix converter. The system enables the generator to capture maximum energy at optimal speed and makes active and reactive power regulated independently. The simulation program was designed in C language and Matlab. Results indicate the good performance of this system and prove the correctness and availability of this scheme.