A Low-speed, Low-acceleration Controller for Cost-effective Reaction-wheels: Design, Simulation & Implementation

With the requirements for CubeSats increasing, a push towards utilizing high­performance equipment has never been greater. Incorporating these equipment in an environment that is cost­, space­ and power­constrained, is challenging. Simultaneously, high­performance equipment require high pointing­accuracy and low­jitter. This thesis proposes the...

Position Sensorless Control of the PMSM in a Wide Speed Range

Due to its high torque density, excellent efficiency and ease of control, the Permanent Magnet Synchronous Machine has found its use more and more in today’s world. To power these machines however, the position of the rotor magnets is required to be able to inject currents which generate the desired torque and speed. This magnet position is...