Calculation of Inductance Parameters of Variable Reluctance Resolver Based on Modified Winding Function Method

China’s high-market manufacturing industry has developed rapidly in recent years, industrial robots and other servo products have been widely used, and the position detection required by servo motor system has also developed rapidly. Among the common sensors, variable reluctance resolver stands out with its many advantages and is applied in many fields. The main analysis model in this paper is the internal motor of hybrid double stator motor. On the basis of modifying the air gap function and the coil turn distribution function, the Modified Winding Function Approach (MWFA) is used to analyze the model. Then another method, Finite Element Analysis (FEA), is also used to analyze the model. Comparing the results of the two methods, it can be seen that the results of MWFA also fluctuate in the results of FEA, and the phase is the same.