Open AccessSwitched Reluctance Motor for Electric Submersible Pump
Author(s) -
Robert Adams,
Jie Xiao,
M. C. Cross,
Max Deffenbaugh
Publication year - 2021
Publication title -
international journal of electrical and computer engineering research
Language(s) - English
Resource type - Journals
ISSN - 2791-6677
DOI - 10.53375/ijecer.2021.36
Subject(s) - waveform , switched reluctance motor , controller (irrigation) , universal motor , electric motor , engineering , control theory (sociology) , voltage , electrical engineering , rotor (electric) , computer science , ac motor , control (management) , agronomy , artificial intelligence , biology
Switched reluctance motors may be advantageous when used as the primary motor for an electric submersible pump system. They are less susceptible to jamming failures due to their high starting torque and ability to reverse direction. Driving these motors requires well-timed pulse waveforms and precise control of the motor based on its rotational position. In general, voltage-based sensing and control systems at the surface see highly unpredictable waveforms with excessive ringing behaviour due to the impedance characteristics of the long cabling between the surface controller and the downhole motor system. In this work, a system is detailed which monitors the current waveforms on the motor coil excitation conductors at the surface as a source of motor performance feedback and control. State-space modelling of the system shows stable current waveforms at the surface controller for both short and long interconnect cable systems. A laboratory demonstration of the surface controller, interconnect cabling, and motor system is shows excellent agreement with the current and voltage waveforms predicted by the state-space system model.