DocumentCode :
2663666
Title :
A special flux-weakening control scheme of pmsm - incorporating and adaptive to wide-range speed regulation
Author :
Chi, Song ; Xu, Longya
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH
Volume :
2
fYear :
2006
fDate :
14-16 Aug. 2006
Firstpage :
1
Lastpage :
6
Abstract :
This paper presents a special flux-weakening control scheme for permanent magnet synchronous machines (PMSM) over wide speed range. In contrast to conventional two-loop (d-, q-axis) control methods, the proposed control scheme achieves both flux-weakening and speed control simultaneously using only one speed/flux-weakening controller. The controller automatically generates both the required demagnetizing and torque-producing currents based on the crossing-coupling effects between d- and q-axes. Additional futures of the proposed controller include 1) not requiring knowledge of motor parameters and dc bus voltage of power inverter, and 2) preventing saturation of the current regulators under any load conditions. Therefore, this scheme is adaptive to the variation of motor parameters and load levels. The effectiveness of the proposed control scheme is verified by both computer simulation and experimental results
Keywords :
electric current control; machine control; magnetic flux; permanent magnet machines; synchronous motors; velocity control; PMSM; crossing-coupling effects; current regulators; demagnetizing currents; flux-weakening control scheme; permanent magnet synchronous machines; power inverter; speed control; torque-producing currents; Adaptive control; Automatic control; Automatic generation control; Demagnetization; Permanent magnet machines; Programmable control; Synchronous motors; Torque control; Velocity control; Voltage control; PMSM; adaptive; flux weakening;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
Type :
conf
DOI :
10.1109/IPEMC.2006.4778120
Filename :
4778120
Link To Document :
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