Operation of the permanent magnet synchronous machine without a mechanical sensor

摘要: Permanent synchronous machines (PSM) score against asynchronous because of their simple control structure and a higher efficiency due to the small rotor losses. The necessity sensors for angular speed position represents considerable restriction robustness. Because this, it is aim much research substitute mechanical with more sophisticated models using only electrical quantities. If certain velocity exceeded, possible determine from EMF, which can simply be calculated terminal quantities (Schroedl Stefan (1988)). At standstill at low velocity, EMF decreases thus cannot utilized detect position. author presents new method estimating position, load torque PSMs. works properly any condition. It combines INFORM-principle ('indirect flux detection by online reactance measurement') Schroedl Kalman filter technique. >