| The thesis proposes a generalized controller and protection strategy for a three-phase controlled MOSFET bridge rectifierfor implementation in Aircraft Electrical System. The MOSFET bridge rectifier topology is highly efficient when compared to diode bridge rectifiers due to its ohmic properties. While the efficiency is lower compared to state of the art topologies like Vienna Rectifier, it produces lower Electro-magnetic Interference (EMI) due to its lower switching frequency. The proposed protection strategy uses sensing resistances to detect overcurrent in the form of differential voltage across the resistor. The protection logic determines the AC supply phase to be isolate while allowing the rectifier to operate with two phases intact. After fault is detected in two phases, all the AC phases are isolated from the rectifier. Various advantages and disadvantages of the controller and protection strategy are discussed. Alternative solutions are also discussed and compared with the proposed design. Key Words:power converter, AC-DC converter, three-phase rectifier, power electronics, controls, circuit protection, circuit fault detection |