On the Field-Reconstruction Method for Electromagnetic Modeling of Resolvers

Abstract

In this paper, Field-Reconstruction Method (FRM) is proposed for predicting the performance of different types of rotational resolvers, including Wound-Rotor (WR) and Variable Reluctance (VR) ones. The main features of the developed method are comparable accuracy with that of the Finite Element Method (FEM) as well as much less computational burden. The deviation of the developed model in the prediction of position error of WR and VR resolvers is less than 3%. While its simulation time is between 30 and 150 times faster than FEM, depending on the resolver type. Accordingly, the proposed model can be used for the design and optimization of different resolvers. Experimental tests on the prototype WR resolver verify the success of the analysis in the modeling of the resolvers.

Eccentricity Analysis of the Co-Excitation Axial Reluctance Resolver during Manufacture and Installation

“…The structure of resolvers can generally be divided into three types: wound resolvers, radial reluctance resolvers, and axial reluctance resolvers. As a position sensor in a servo motor control system, the resolver can be used in many fields such as robots, electric vehicles, aviation and aerospace [1][2][3][4][5]. The wound resolver realizes a sinusoidal electromagnetic field through the excitation windings distribution set on the rotor [6].…”