双绕组感应发电系统的建压仿真研究

Simulation of the Voltage Building-up of Dual Stator-winding induction Generator System

定子双绕组感应发电系统是由功率绕组侧的励磁电容和控制绕组侧的励磁变换器来共同励磁的,有助于减小励磁变换器的容量和体积。实现系统建压是系统正常运行的先决条件,不同大小的励磁电容对于系统的建压会有一定的影响。本文建立了双绕组感应发电机的数学模型,分别对电容自励建压、开环控制的励磁变换器建压以及基于控制绕组定子电压定向闭环控制的励磁变换器建压等三种建压过程进行了仿真研究,结果证明了所提建压方式的可行性。

Dual stator-winding induction generator is dependent on the complementary excitation between a bank of excited capacitors of power winding side and a converter of control winding side, which suitable to minimizing converter power and size. Voltage build up is necessary for the system operating normally. The excited capacitor has influence on the voltage build up of this system. The simulation model of dual stator-winding induction generator system is established. Three starting-up processes via excited capacitor, open-loop controlled converter and close-loop controlled converter are simulated respectively, which confirms the validity of the proposed approach.