Switched Reluctance Motor for Electric Submersible Pump

2021 ◽  
Author(s):  
Robert Adams ◽  
Jinjiang Xiao ◽  
Michael Cross ◽  
Max Deffenbaugh
Keyword(s):  
Reverse Direction ◽  
Submersible Pump ◽  
Switched Reluctance Motors ◽  
Pump System ◽  
Switched Reluctance ◽  
Precise Control ◽  
Reluctance Motor ◽  
And Control ◽  
Starting Torque ◽  
Electric Submersible Pump

Abstract 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. It is demonstrated that the pulses required to drive switched reluctance motors can still be applied over along cable lengths. Additionally, the current at the surface can be used to monitor and control the operation of the motor downhole, even with long cable lengths separating the surface power source and downhole motor.

Switched Reluctance Motor for Electric Submersible Pump

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Robert Adams ◽  
Jinjiang Xiao ◽  
Michael Cross ◽  
Max Deffenbaugh
Keyword(s):  
State Space ◽  
Performance Feedback ◽  
Motor System ◽  
Reverse Direction ◽  
Submersible Pump ◽  
Pump System ◽  
Switched Reluctance ◽  
Precise Control ◽  
And Control ◽  
Electric Submersible Pump

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.

A Novel Mathematic Model of Bearingless Switched Reluctance Motors

2012 ◽  
Vol 433-440 ◽  
pp. 7526-7529
Author(s):  
Yun Hong Zhou ◽  
Yu Kun Sun
Keyword(s):  
Optimization Design ◽  
Mathematic Model ◽  
Magnetic Saturation ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Radial Weight ◽  
Reluctance Motor ◽  
Torque Load ◽  
Critical Criterion ◽  
And Control

Radial weight and rotary torque load often demand large winding current in a bearingless switched reluctance motor (BSRM). This will tend to cause magnetic saturation. But traditional mathematic model can not fit for this saturated working state, which has formatted a sever limitation. With a BSRM model in Maxwell, its magnetic saturation characteristics were analyzed, and a critical criterion was computed. Then a novel mathematic model was established with Maxwell tensor method and confirmed by Finite element computing results. It could fit for both unsaturated and saturated working state, and also satisfy reversibility condition. These were both very useful for nonlinear decoupling with state feedback method and wide application in industry process. This proposed modeling and analyzing method could also provide useful references for motor’s optimization design and control algorithm research.

scholarly journals A review on linear switched reluctance motor

2017 ◽  
Vol 50 (3) ◽  
pp. 261-270 ◽  
Author(s):  
Juan Chowdhury ◽  
Gaurav Kumar ◽  
Karuna Kalita ◽  
Kari Tammi ◽  
Sashindra K Kakoty
Keyword(s):  
Developmental Stages ◽  
Force Density ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Wide Range ◽  
Salient Points ◽  
Reluctance Motor ◽  
Actuator Application ◽  
Linear Switched Reluctance Motor ◽  
And Control

Switched reluctance motors have been extensively studied by researchers for their unparalleled advantages in wide range of applications. The linear versions of it, possessing similar attributes and prospects, have been developed in recent years. Owing to their frugal design, robust built and high force density, the linear switched reluctance motors (LSRM) has had significant stages of development and optimization. The flexibility in design and operation makes LSRM a prime contender for any linear motor-actuator application. This paper provides a bird’s eye view across its developmental stages and its various aspects in design, analysis and control. The following content discusses the salient points of research and the contribution by researchers in this field.

Multilevel Inverter Fed Switched Reluctance Motors (SRMs): 6/4, 8/6 and 10/8 SRM Geometric Types

2017 ◽  
Vol 8 (2) ◽  
pp. 584
Author(s):  
Nabil Farah ◽  
M.H.N. Talib ◽  
Jurifa Lazi ◽  
Majed Abo Ali ◽  
Z. Ibrahim
Keyword(s):  
Power Electronics ◽  
Performance Comparison ◽  
Multilevel Inverter ◽  
Voltage Source ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Vector Modulation ◽  
Great Control ◽  
Circuit Configuration

<p>Nowadays power electronics circuits are embedded to most of electrical application areas. This approached offers a great control mechanism with simple and easy circuit configuration. Switched Reluctance Motor (SRM) is one of the most recent apparatus which draws a great number of researchers’ interests. Previously several attempts are made to use the power converters as driver for SRM such as Voltage Source Inverter (VSI) and bridge converters. This paper presents an analysis study of three level inverter to control the SRM. The inverter is controlled using space vector modulation SVM. The aim of this paper is to report the use the multilevel inverter to be fed into the SRM. The implementation of the multilevel inverter is abl to reduce the Total Harmonics Distortion (THD). Performance comparison are made between the multilevel and previous power electronics circuits that applied to the SRM. The simulation results have been conducted by MATLAB/SIMULINK software.</p>

scholarly journals Influence of Control and Structure Parameters on the Starting Performance of a 12/8 Pole Switched Reluctance Motor

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3744
Author(s):  
Jichao Han ◽  
Baojun Ge ◽  
Kai Zhang ◽  
Yang Wang ◽  
Chao Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Switched Reluctance Motor ◽  
Structure Parameters ◽  
Two Phase ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Calculation Results ◽  
Starting Torque ◽  
Element Method

To investigate the influence of control and structure parameters on the starting performance of a switched reluctance motor, a 12/8 pole switched reluctance motor is analyzed in this paper. The novel field-circuit coupled finite element method of switched reluctance motor is proposed in the paper. The influence of the controller on the switched reluctance motor is considered. The influence of rotor initial position angle, starting mode, starting current, and structure parameters on the starting performance of the switched reluctance motor is studied using the field-circuit coupled finite element method. The starting performance of the switched reluctance motor is obtained under the different control and structure parameters. The alternating starting mode of single- and two-phase winding can improve the starting torque of switched reluctance motor (SRM). As the stator pole arc coefficient increases, the starting torque of SRM increases. The appropriate reduction of the air gap length can improve the starting torque of SRM. Experimental results of the prototype are compared with the calculation results, which verifies the reliability of the calculation method and accuracy of the calculation results.

Damped Absorber Optimization and Stability for Semi-Definite Systems Exhibiting Unstable Self-Excitation During Start-Up

1992 ◽  
Vol 114 (1) ◽  
pp. 47-53 ◽  
Author(s):  
J. R. Shadley ◽  
J. R. Sorem
Keyword(s):  
Computer Simulation ◽  
System Dynamics ◽  
Laboratory Testing ◽  
Submersible Pump ◽  
Safe Operation ◽  
Pump System ◽  
Electric Induction ◽  
First Case ◽  
Start Up ◽  
Electric Submersible Pump

Stability is examined with respect to the torque in the elastic element between motor and load in semi-definite systems exhibiting unstable self-excitation during start-up. Equations are provided for optimizing a motor-mounted damped absorber to minimize the torque fluctuations in the shafting between motor and load in semi-definite systems. Minimum damper inertia needed to stabilize the system is computed assuming optimum damping. Stability and damper optimization equations are applied to two cases involving unstable self-excitation in electric submersible pump systems. In the first case, unstable growth of torque amplitude in shafting between an electric induction motor and an inertial load was observed during start-up in laboratory testing. A computer simulation of the system dynamics demonstrated that the torque could be stabilized by adding a damped absorber to the motor. In a computer simulation for the second case, unstable torque fluctuations in the shafting of an electric submersible pump system were dramatically reduced by the addition of a damped absorber; however, stability was not achieved until the damper inertia was sufficiently increased. Stability is not always required for safe operation of electric submersible pumps. A computational model of the system dynamics during startup should be used to determine when stability is required.

The Designment and Implenment of Fuzzy Hybrid Pid in Srm Appleller to Electric Valve

2013 ◽  
Vol 367 ◽  
pp. 405-410
Author(s):  
Guo Qing Li ◽  
Dean Zhao ◽  
Hui Jiang
Keyword(s):  
Fuzzy Control ◽  
Strong Coupling ◽  
Pid Control ◽  
Control Method ◽  
Switched Reluctance Motor ◽  
Feedback System ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
The Core ◽  
Reluctance Motor

To solve the strong coupling and nonlinear of switched reluctance motor (SRM) used in the Electric valve ,we use a fuzzy compound PID control method, and apply it to the switched reluctance motors speed control system.The simulation applys that this method combines the advantages of fuzzy control and PID control and is well applied to non-linears object.Based on the theory, we design the core to the outer loops speed feedback and inner current loops feedback system in TMS320F28335,and describe the specific hardware and software structure, morely verify the feasibilitys test. The theory can solve the problem that the traditional PID cannot meet the variation of the parameter from the electric valve.

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