DocumentCode :
1332667
Title :
Modified Indirect Vector Control Technique for Current-Source Induction Motor Drive
Author :
Abdelsalam, Ahmed K. ; Masoud, Mahmoud I. ; Hamad, Mostafa S. ; Williams, Barry W.
Author_Institution :
Technol. & Maritime Transp., Alexandria, Egypt
Volume :
48
Issue :
6
fYear :
2012
Firstpage :
2433
Lastpage :
2442
Abstract :
Medium-voltage (MV) drives are generally based on either voltage-source inverters or current-source inverters (CSIs). CSIs feature simple topology, motor-friendly waveforms, power reversal capability, and short-circuit-proof protection; hence, they are widely used as high-power MV drives. Direct vector control (DVC) CSI drives ensure improved performance by decoupled control of the machine flux and torque using two independent control loops. Despite the excellent performance of DVC, this scheme faces practical challenges, like dc offset in the stator model and machine parameter dependence. Conventional indirect vector control (IVC) CSI drives are known for reduced computational burden and less machine dependence. However, conventional-IVC CSI drives exhibit poor dynamic response and transient field misorientation due to the absence of a dedicated flux control loop. In this paper, a modified IVC technique is proposed featuring superior decoupling and field orientation using only two extra proportional-integral current controllers with additional motor current feedback signals. The proposed-technique effectiveness is examined experimentally, on a scaled low-voltage prototype, as well as using simulation results.
Keywords :
PI control; electric current control; feedback; induction motor drives; invertors; machine vector control; stators; CSI; DVC; IVC technique; PI controllers; current-source induction motor drive; current-source inverters; decoupled control; decoupling orientation; direct vector control; field orientation; flux control loop; high-power MV drives; independent control loops; machine flux; machine parameter dependence; machine torque; medium-voltage drives; modified indirect vector control technique; motor current feedback signals; power reversal capability; proportional-integral current controllers; scaled low-voltage prototype; short-circuit-proof protection; stator model; voltage-source inverters; Capacitors; Current-voltage characteristics; Induction motors; Inverters; Rotors; Stators; Torque control; Voltage control; Current-source inverter (CSI); field orientation; indirect vector control (IVC); medium-voltage (MV) drives;
fLanguage :
English
Journal_Title :
Industry Applications, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-9994
Type :
jour
DOI :
10.1109/TIA.2012.2227132
Filename :
6352893
Link To Document :
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