Title :
Torque improvement of three-phases full bridge converter based switched reluctance motor with DC assisted winding
Author :
Tungpimolrut, Kanokvate ; Kachapornkul, S. ; Jitkreeyarn, P. ; Somsiri, P. ; Chayopitak, Nattapon ; Akira, C.
Author_Institution :
Adv. Autom. & Electron. Res. Unit, Nat. Electron. & Comput. Technol. Center, Pathumthani, Thailand
Abstract :
In this paper a torque capacity improvement method for the three-phase full bridge converter based switched reluctance motor (SRM) drive is investigated. The concept of DC assisted winding operated with ordinary bipolar AC winding for the conventional two-phase excitation is applied and compared to the previously proposed two-phase excitation drive system. The optimal switching angle and amplitude of the current in DC winding are identified. The improvement on torque versus speed characteristic curve of tested machine, 1.5 kW, 3-phase, 6-stator-pole and 4-rotor-pole SRM is verified by the experimental results.
Keywords :
bridge circuits; power convertors; reluctance motor drives; rotors; stators; torque; DC assisted winding; bipolar AC winding; optimal switching angle; power 1.5 kW; switched reluctance motor; three phases full bridge converter; torque capacity improvement; two-phase excitation drive system; Bridge circuits; Inductance; Reluctance motors; Switches; Torque; Windings; Switched Reluctance Motors; Three-phase full bridge converter; Torque capacity; Two-phase excitation;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
