Title :
Bipolar excitation for double three-phase full bridge converter based three-phase switched reluctance motor drive system
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, Klong Luang, Thailand
Abstract :
This paper propose a torque performance improving method for the bipolar excitation using the commercial three-phase full bridge converter based Switched Reluctance Motor (SRM) motor drive system. In order to control the current in each phase more flexible without any coupled effect among phases, the 2 units or double standard three-phase full-bridge power modules are used. The concept of current command with superimposed DC offset for the bipolar excitation scheme of those double standard three-phase full-bridge converter bases SRM drive system is proposed for torque performance improvement. The relation between the current and generating torque based on the proposed excitation scheme and power circuit configuration is analyzed, and the condition for the maximum average torque is also determined. The proposed method is verified on 1.5 kW, 3-phase 6/4 pole SRM.
Keywords :
bridge circuits; electric current control; machine control; power convertors; reluctance motor drives; SRM; bipolar excitation scheme; current control; double standard three-phase full-bridge power modules; double three-phase full bridge converter; power 1.5 kW; power circuit configuration; superimposed DC offset; three-phase switched reluctance motor drive system; torque performance improving method; Bridge circuits; Multichip modules; Reluctance motors; Standards; Torque; Windings; Bipolar excitation; Switched Reluctance Motors; Three-phase full bridge converter; Torque capacity;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699545
