Binary position sensor for synchronous machines based on a serial n-bit sequential code

Abstract

This work presents the design of an absolute position encoder with n-bit resolution based on a serial sequential code to measure rotor position in synchronous machines. The encoder is capable of define 2n positions minimizing the sensor disc size compared to conventional gray encoders and using the same hardware. Besides, a new approach to single-track code generation is proposed with the development of a code generation program. This design is going to be installed into an experimental hybrid vehicle helping in startup synchronization between the generator and combustion engine.