Patent ID: 8648556
Filing Date: 2014-02-11
Classification: H02P

Abstract:
1. A device to control a permanent magnet synchronous machine, “PMSM”, including a stator and a rotor and powered by an inverter, comprising: a sensor to sample a measurement θ control means to control an operating point of the PMSM according to the position of the rotor and the settings; estimation means to determine an estimate {circumflex over (θ)} of the rotor position in an estimated Park frame of reference δ-γ associated with the rotor, where the estimation means include adjustment means to make said estimated rotor position {circumflex over (θ)} track said measured rotor position θ a malfunction detector to detect a malfunction of the sensor; and a switch configured to connect the control means to the sensor in order that the control means receive measured position θ