六相同步发电机的稳态电磁参数

从Park方程的基本原理出发,建立了六相同步发电机的基本方程,得到了六相同步发电机的d轴等值电路和q轴等值电路。等值电路中的综合互感抗体现了六相同步发电机2个Y之间的磁耦作用,由电枢反应电抗和综合漏互感抗2部分组成。通过对六相同步发电机单Y运行(另一Y开路)和双Y运行的分析,得出双Y运行同步电抗为2倍的单Y运行同步电抗与单Y自漏抗之差。以空载短路试验的实例,测试了六相同步发电机特性曲线,以及d轴同步电抗、自漏抗和短路比。从电磁理论分析和实际运行特性2方面,验证了六相同步发电机的稳态电磁参数。

Steady-State Electromagnetic Parameters of 6-Phase Synchronous Generator

Based on the basic principle of Park equation, the basic equation of the 6-phase synchronous generator is established, and d-axis and q-axis equivalent circuits of 6-phase synchronous generator are obtained. Comprehensive mutual reactance in equivalent circuits reflects the magnetic coupling function between double Y of the 6-phase synchronous generator. It consists of armature reaction reactance and comprehensive mutual leakage reactance. Through the analysis of single Y operation (the other Y no-load ) and double Y operation of the 6-phase synchronous generator, it can be obtained that double Y synchronous reactance is equal to the difference of 2 times single Y synchronous reactance and self leakage reactance. Taking the example of no-load short-circuit test, the characteristic curve of 6-phase synchronous generator, the d-axis synchronous reactance, the self leakage reactance, and the short-circuit ratio are measured. The steady-state electromagnetic parameters of the 6-phase synchronous generator are verified with the electromagnetic theory analysis and practical operation characteristics.