Switched Reluctance Motor Operation Using Three Conductor Electric Submersible Pump Cable

Abstract

Switched reluctance motors have advantages over traditional three phase induction motors for downhole electric submersible pump systems. Controlling an switched reluctance motor systems requires precisely timed waveforms issued from the surface motor controller to the downhole electric motor, which are distorted by the long cabling required between the surface controller and the downhole motor. Additionally, the motor architecture needs to be capable of operation using the existing three-conductor infrastructure available for elecic submersible pumps. A novel surface controller and switched reluctance motor architecture capable of controlling a downhole motor system over long three-conductor cable lengths is developed and demonstrated.