Luenberger Observer Based Sensorless IPMSM control for Flux Weakening Applications

The boom in the electric vehicle market, along with the decrease in rare earth magnet costs, has increased the demand for interior permanent magnet (IPM) synchronous motors. IPM motors possess special features like having nearly constant power over a broad speed range. This characteristic distinguishes them from other types of motors and makes them attractive for applications like traction motors and machine tools.\\ An IPM motor can be controlled in various ways and methods to work at different speeds and torques. Sensorless control is a methodology that has been gaining a lot of popularity recently, this is because of the advantages of sensorless control that can outweigh the need for a transducer. \\ This thesis examines and explains the modeling of an IPM motor and its control scheme, the control scheme consists of many parts and employs both flux weakening and MTPA algorithms to control speed. After achieving good sensor-based control, a sensorless control algorithm that is based on a Luenberger Observer is deployed and tested both in normal and in flux weakening regions.