Patent ID: 9705437
Date: 2017-07-11
CPC Classifications: H02P

Claim:
1. A method of determining an angular position of a rotor in an N-phase permanent magnet motor (PMM), comprising: providing a processor having an associated memory, wherein said memory stores an angular position determination (APD) equation or hardware is included implementing said APD equation, said APD equation determining said angular position from N-phase measurements obtained from stator windings associated with each of said N-phases; forcing a voltage or a current upon stator terminals of said stator windings for each of said N-phases; using said APD equation, determining said angular position from said N-phase measurements; wherein said forcing comprises forcing said voltage and said sensing comprises sensing said resulting stator current; wherein said sensing said resulting stator current comprises sensorless sensing; wherein said APD equation is given by: wherein said θ is said angular position, said A n is a magnitude of said n th phase and said x n is said n th phase measurement.