独立运行的双馈异步轴带发电机矢量控制系统

Vector control of a doubly fed induction generator for stand-alone shaft generator systems

为了更好地利用船舶轴带发电机这种有效的节能方式,该文对双馈异步轴带发电机独立运行时的恒频供电技术展开了研究。在建立了变速恒频双馈异步轴带发电机系统的数学模型的基础上,提出了一种系统独立运行时的双馈发电机定子磁链定向的矢量控制方法,控制发电机在维持输出电压恒定的同时满足系统负载的需要,并在以TM S320F 2812为控制器的实验平台上进行了相关的实验。实验结果表明,该系统具有良好的动静态性能,在负载和转速变化时能够输出恒定的电压和频率。

A doubly fed induction generator （DFIG） was developed for a stand-alone shaft alternator supplying constant frequency power to more effectively utilize the ship shaft generator to save energy. The mathematical model of the variable speed constant frequency doubly fed induction shaft generator system is used to develop a stator flux oriented vector control for the DFIG for a stand-alone system that maintains the output voltage constant while providing sufficient load. Experiments using a TMS320F2812 controller give good steady and transient behavior and the system can supply the entire range of power demands while keeping a constant voltage and frequency for variations in both load and speed.