Fault-tolerance control for a dual-PMSM drive system

In this paper, a simple fault-tolerance control method for a dual-PMSM speed drive system is investigated. The proposed method does not require any additional hardware. By suitably changing the switching states, a fault-tolerant control dual-PMSM drive system can be achieved. The fault-tolerant system can be applied for high-reliability applications such as, electric vehicles and other electric propulsion systems. The proposed system is implemented by using TMS320F2808 digital signal processors. Several experimental results show the validity and feasibility of the proposed method.