谐波励磁同步发电机气隙磁场有限元分析

Analysis of the Air-Gap Magnetic Field of Harmonic Exciting Synchronous Generator by Finite-Element Method

用限元法分析和计算了１２ｋＷ和５０ｋＷ谐波励磁凸极同步发电机空载和负载时气隙磁场分布曲线，分析了三次谐波电流分布规律和三次谐波绕组电枢反应，计算了转子转动情况下的气隙磁密时间分布．计算结果与实测相近．

In order to optimumly select the third harmonic winding of harmonic exciting generator, the paper anlayses and calculates the air-gap magnetic field distribution of 12 kW and 50 kW harmonic exciting salient-pole synchronous gererator under no-load and full-load conditions by the finite-element method. The paer analyses the distribution regularity of the third harmonic current and the armature reaction of the third harmonic winding, and calculates the air-gap flux density wave with rotation of the rotor. All calculation results are shown to compare closely with experimental ones.