Design, control and experimental investigation of fault-tolerant five phase PMSG for wind power application

Abstract

Fault-Tolerant, small-scale wind energy conversion (WEC) system often utilises permanent magnet synchronous generator coupled with an uncontrolled diode rectifier. To enhance the electromagnetic performance and fault-tolerant capability over classical three-phase generator, a five-phase permanent magnet synchronous generator (FP-PMSG) has been opted here. The design and optimisation are carried out using finite element method (FEM). The rectified DC link voltage and its ripple factor is considered as the two basic performance parameters for the overall system. Furthermore it is compared with conventional 3and 5-phase PMSGs both under healthy and faulty conditions. The simulated and FEM results of the proposed generator is further validated with experimental results of the prototype of 60 slots eight poles fractional slot double layer winding surface mounted PMSG.