关键词: 绕线式旋转变压器, 高精度, 励磁绕组, 信号绕组, 位置角

Abstract: Regarding the problem of insufficient angular position accuracy. This article studies position calculation,winding distribution and turn number of high-precision wound rotor resolver. The finite element analysis was conducted onwound rotor resolver with rotor-16 slots stator-12 slots and rotor-16 slots stator-24 slots separately. The air gap magnetic flux density and total harmonic distortion rate were also compared. The electromotive force of signal winding and position angle were obtained according to finite element. The position accuracy of two wound rotor resolvers was studied from three standards: peak to peak position error, maximum position error and average position error. Two wound rotor resolvers had higher accuracy in calculating rotor angle positions. wound rotor resolver with rotor - 16 slots stator - 12 slots had higher accuracy to obtain angle positions than wound rotor resolver with rotor - 16 slots stator - 24 slots. The technology of highprecision wound rotor resolver studied in this article can achieve sine distribution of excitation winding and signal winding. High-precision angle positions can be obtained.

Key words: wound rotor resolver, high-precision, exciting winding, signal winding, position angle