A Novel Variable Reluctance Resolver With Simplified Winding Arrangement and Adaptive PI Controller

Conventional Variable Reluctance (VR) resolvers require a complicated winding arrangement, and extra circuit component to demodulate high frequency induced voltage. This paper presents an innovative design solution to reduce the structural complexity of the resolver and improve the functionality of the controller unit. The proposed design simplifies the winding arrangement and eliminates the necessity of the demodulation signal processing circuit. In addition, the conventional PI controller is being replaced by the adaptive PI controller to automatically adjust the controller setting for different operational speeds. The performance of the proposed design is compared against the conventional VR resolver via Finite Element.