Title :
Analysis of current-regulated voltage-source inverters for permanent magnet synchronous motor drives in normal and extended speed ranges
Author :
Dhaouadi, Rached ; Mohan, Ned
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA
fDate :
3/1/1990 12:00:00 AM
Abstract :
For a high-performance PMSM (permanent magnet synchronous motor) drive, appropriate choice of the power converter and of the controller is achieved using computer simulation of the drive system. The generation of a smooth torque at low speeds and the system operating limits in the high and extended-speed ranges are investigated. A numerical simulation of the drive is used to study various control strategies. Simulation results for ramp, hysteresis, and space-vector-type current controllers are presented to illustrate important performance characteristics of each. The nature of current regulator saturation is described and a flux weakening algorithm is discussed in order to achieve extended torque-speed characteristics above the rated speed
Keywords :
controllers; electric drives; invertors; permanent magnet motors; synchronous motors; controller; current regulator saturation; current-regulated voltage-source inverters; extended speed ranges; flux weakening algorithm; hysteresis type controllers; low speeds; numerical simulation; permanent magnet synchronous motor drives; power converter; ramp type controllers; smooth torque; space-vector-type current controllers; torque-speed characteristics; Computational modeling; Computer simulation; Drives; Hysteresis; Inverters; Magnetic analysis; Numerical simulation; Permanent magnet motors; Torque; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on