Interior permanent magnet synchronous motor (IPMSM) systems are vulnerable to uncontrolled generation (UCG) when the inverter switches loss their drive signals suddenly during flied weakening high speed operation. At this point, uncontrolled rectifier is composed by freewheel diodes in the inverter, the current comes from the motor through the rectifier, and then charges the battery. This paper...

Recent advances in Electric Power Steering technology have promised significant improvements in vehicle handling performance and safety. Electric power steering is a new kind of power steering which is developing rapidly these years due to their superior energy efficiency and energy conservation. This paper presents a possible design solution of an electric power steering actuator for hybrid el...

This paper deals with the optimal control of interior permanent magnet synchronous machine (IPM) in the integrated starter-generator (ISG) application. IPM designed for flux-weakening operations are able to realise high performances. Nevertheless, the ISG environment imposes lots of constraints which must be taken into account in an appropriate control. After a presentation of machine design, I...

For high-speed permanent magnet machines (HSPMMs), two different rotor structures are widely used: surface-mounted (SPM) and interior (IPM). The have a large impact on the comprehensive performance in multiple physical fields of HSPMMs, including mechanical stress, electromagnetic characteristics, temperature distribution. However, multi-physics comparison is rare existing literature, which mak...

The conventional maximum torque per ampere (MTPA) operation usually neglects the derivative terms of interior permanent magnet synchronous motor (IPMSM) parameters, which significantly influences MTPA control accuracy. In this study, an scheme that considers is developed, and a parameter identification strategy inverter to be non-ideal developed for calculation IPMSM parameters terms. addition,...

This application note describes the design of a 3-phase Permanent Magnet Synchronous Motor (PMSM) vector control drive with 3-shunt current sensing with a position sensor. The design is targeted for automotive applications. This cost-effective solution benefits from a Freescale Semiconductor MPC5604P device dedicated for motor control. The system is designed to drive a 3-phase PM synchronous mo...

This paper presents a novel torque equation to predict the harmonic characteristic of an interior permanent-magnet synchronous motor (IPMSM). The procedure for establishing proposed is as follows. First, we classify origins torque, phase, and slot harmonics. harmonics are then analyzed study relationship between generated in N S poles magnet. Second, establish consisting two terms phase In part...