双绕组异步发电机励磁控制的优化

Optimization to Excitation Control of Dual Stator—Winding Induction Generator

定子双绕组异步发电机控制绕组接励磁调节器,只提供发电机励磁无功功率。在风力发电、飞机发电等系统中,转速变化范围较宽,控制绕组无功变换器的容量最小有助于降低系统的成本,功率绕组励磁电容的大小直接影响着控制绕组的无功容量。文章研究了变速变载运行时励磁电容的取值对于控制绕组无功容量的影响规律,对电机参数的影响作了分析。

The conlrol winding connected with excited converter only supply excited reactive power of dual stator- winding induction generator. The speed has a wide range with wind power and airplane supply system. The mini- mize the reactive power of control winding can reduce cost of generator system. The excited capacitor of power winding influences the reactive power of control winding. In this paper, the determination of excited capacitors to minimize the reactive power of control winding under variable load and speed are analyzed. The influences of machine＇s parameters were analyzed.