Title :
A study on electromagnetic energy recovery in SRM system
Author :
Oh, Seok-Gyu ; Hwang, Young-Moon ; Choo, Young-Bae
Author_Institution :
Dept. of Electr. Eng., Pusan Nat. Univ., South Korea
Abstract :
In this paper, an efficient type of SRM (switched reluctance motor) system is presented. It shows high specific output power and energy conversion ratio through proper matching the driving conditions with the electromagnetic structure. For the best utilization of the torque producing capability of the system, two driving conditions are required. The first is to get the current in the form of a flat-topped waveform in driving mode. The other is to recover electromagnetic energy as quickly as possible at turn-off. The first condition is satisfied by a control strategy with voltage and switching angle controllers. Several considerations for the proper design of the recovery circuit are also presented in detail. They include considerations on the control method, amplitude of recovered energy and circuit parameters which can guarantee the successful operation of the system. The validity of the system proposed and the adequacy of parameter estimation are verified through test results obtained by operating the variable-speed SRM drive system
Keywords :
electromagnetic waves; machine testing; machine theory; reluctance motors; SRMs; driving conditions; electromagnetic energy recovery; electromagnetic structure; energy conversion ratio; recovered energy amplitude; specific output power; torque producing capability; variable-speed SRM drive; Circuits; Control systems; Electric variables control; Energy conversion; Parameter estimation; Power generation; Reluctance machines; Reluctance motors; Torque; Voltage control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.570908
