Design and analysis of three-phase FTPMM for Partial Energy Electric Pump System

Abstract

As the core component of the More Electric Aircraft (MEA) hydraulic system, the partial energy Electric Pump System (EPS) determines the performance of the hydraulic servo device. In this paper, a three-phase Fault-Tolerant Permanent Magnet Motor (FTPMM) for the partial energy EPS is proposed. The three-phase FTPMM drive system for the partial energy EPS can replace the traditional engine pump source hydraulic system, which can save costs, reduce weight and volume, and improve efficiency. Moreover, it can solve the problem of high reliability application of the motor drive system in aeroengine. The slot-pole combinations and centrifugal height are designed and analyzed for the proposed three-phase FTPMM, and a prototype model was produced based on this. Finally, the basic electromagnetic performance and fault-tolerant performance of three-phase FTPMM are verified through simulation and experiment. The results show that the proposed three-phase FTPMM has good fault isolation and suppression capabilities under winding fault.

Keywords

• Permanent magnet motor
• Slot-pole combinations
• Centrifugal height
• Fault-tolerant performance