Title :
Separately controlled double-fed speed regulation system
Author :
Feng, Zhang ; Ge Wan Lai ; Xu Shan Zhen
Author_Institution :
Dept. of Inf. & Control, Shanghai Jiaotong Univ., China
Abstract :
Separately controlled double-fed motor speed regulation (DMSR) system possesses the characteristic of the synchronous motor, because it is precisely regulated that the output frequency of the frequency transformer can control the output rotational speed of motor. This system contains an AC-DC-AC current source inverter with current closed-loop and frequency opened-loop. The inverter is auto-sequential-commutated inverter (ASCI) which needs forced inversion. Current signal changes with the frequency needed, and obtained by using MCS-51 single-chip microcomputer control system, so that the system can be easily handled. Using this system to control a 55 kW induction motor, experimental results are obtained
Keywords :
AC-AC power convertors; DC-AC power convertors; control system synthesis; digital control; induction motors; invertors; machine control; machine testing; machine theory; microcomputer applications; power engineering computing; velocity control; 55 kW; AC-DC-AC current source inverter; MCS-51 single-chip microcomputer control system; auto-sequential-commutated inverter; current closed-loop; forced inversion; frequency opened-loop; frequency transformer; induction motor; output frequency; separately-controlled double-fed speed regulation system; Circuit faults; Control systems; Frequency; Induction motors; Inverters; Magnetic fields; Rotors; Stators; Synchronous motors; Water conservation;
Conference_Titel :
Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on
Print_ISBN :
0-7803-5769-8
DOI :
10.1109/PEDS.1999.792799
