DESIGN PROPOSAL OF SCREW PUMP STRUCTURED A SWITCHED RELUCTANCE MOTOR (SP-SRM)

Abstract

Structure of a Switched Reluctance Motor (SRM) has double salient poles and does not include permanent magnet, conductor and bar. Therefore, this geometrical structure is intended to be used as an advantage for the screw pump proposal; magnetic rotor has been designed partially, inspired from the structure of radial and axial flux SRM. Proposed SRM has 6/4 poles and 3 phase configuration. Screw rotor, which is made of non-magnetic material, has been installed between magnetic rotor and the rotor structure of the screw pump has been obtained. In stator, there are 4 coils of 2000 turns installed in flux path for each phase. The screw rotor isn't included in the magnetic coupling. Here the pump rotor itself is an actuator of direct drive application. This system has been called as SP-SRM. Electrical and magnetic quantities like inductance, torque, power, magnetic flux of the SPSRM have been calculated analytically and predicted by finite elements method (Ansoft Maxwell 3D); it doesn't cover mechanics and dynamics of the proposed system. In the direct drive actuator application where the rotor itself is considered as an actuator, the SP-SRM looks like an attractive choice with its superiority of eliminating the used of a driver motor, couplings and gear boxes.

Keywords

• ARM, ARM tasarımı, Eksenel akılı ARM, Vida pompa, Dogrudan tahrik.