Study of EV Motor Control Scheme

2011 ◽  
Vol 317-319 ◽  
pp. 643-648
Author(s):  
Shi Rong Yan ◽  
Shi Zhong Li
Keyword(s):  
Sliding Mode ◽  
Current Control ◽  
Motor Speed ◽  
Maximum Torque ◽  
Control Loops ◽  
Field Weakening ◽  
Control Scheme ◽  
Electrical Vehicle ◽  
Maximum Torque Per Ampere ◽  
Exponential Reaching Law

According to electrical vehicle (EV) working requirements, a built-in permanent magnet (IPM) synchronous motor is selected as the topic motor. A mathematical model about the motor is described here. To make the EV run smoothly, safely and economically, two control loops for the electric motor are developed. One is based on motor current control, which consists of maximum torque per ampere control and field weakening control. Other is motor speed control loop, in which a sliding mode control (called a variable speed exponential reaching law) is used. Through simulation study, the control scheme developed here can make the motor work well, which means it can be used in some EV driving systems.

scholarly journals DEVELOPMENT OF AN ALGORITHM FOR SWITCHING CONTROL STRATEGIES OF SALIENT SYNCHRONOUS MOTORS WITH PERMANENT MAGNETS

2021 ◽  
Vol 2021 (58) ◽  
pp. 30-38
Author(s):  
O.I. Tolochko ◽  
◽  
O.O. Burmelov ◽  
Ya.O. Kalenchuk ◽  
◽  
...  
Keyword(s):  
Permanent Magnets ◽  
Control Strategies ◽  
Permanent Magnet Synchronous Motor ◽  
Optimal Strategies ◽  
Motor Speed ◽  
Maximum Torque ◽  
Control Zone ◽  
Field Weakening ◽  
Wide Range ◽  
Maximum Torque Per Ampere

In this paper, a detailed analysis of the control algorithms for a permanent magnet synchronous motor in a wide range of speeds is carried out using the optimal strategies: "Maximum torque per ampere" (first zone), "Field weakening mode" (second zone) and "Maximum torque per volt" (third zone). A method for determining the boundaries of the first and second zones, as well as a method for determining the maximum static moment with which the motor can operate without the risk of irreversible demagnetization of permanent magnets, was proposed. It allows determining the maximum possible operating speed of the motor at a given load, the maximum motor load at a given speed, as well as the advisability of using the third control zone to achieve the maximum motor speed. References 19, figures 4.

scholarly journals Operational Improvement of Interior Permanent Magnet Synchronous Motor Using Fuzzy Field-Weakening Control

Electronics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 452 ◽  
Author(s):  
Ming-Shyan Wang ◽  
Min-Fu Hsieh ◽  
and Hsin-Yu Lin
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Motor Speed ◽  
Maximum Torque ◽  
Field Weakening ◽  
Speed Range ◽  
Interior Permanent Magnet ◽  
Operational Improvement ◽  
Maximum Torque Per Ampere

This paper considers the fuzzy control design of maximum torque per ampere (MTPA) and maximum torque per voltage (MTPV) for the interior permanent magnet synchronous motor (IPMSM) control system that is capable of reducing computation burden, improving torque output, and widening the speed range. In the entire motor speed range, three control methods, i.e., the MTPA, flux weakening, and MTPV methods may be applied depending on current and voltage statuses. The simulation using MATLAB/Simulink is first conducted and then in order to speed up the development, hardware-in-the-loop (HIL) is adopted to verify the effectiveness of the proposed fuzzy MTPA and MTPV control for the IPMSM system.

Study on an EV Traction Control Strategy

2011 ◽  
Vol 141 ◽  
pp. 605-610
Author(s):  
Shi Rong Yan ◽  
Shi Zhong Li
Keyword(s):  
Control Strategy ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Current Loop ◽  
Traction Control ◽  
Field Weakening ◽  
Electrical Vehicle ◽  
Working Principle ◽  
Braking Control ◽  
Maximum Torque Per Ampere

According to an electrical vehicle (EV) construction and working principle, a dynamic model governing its motion was established. A built-in permanent magnet synchronous motor was selected as its driving motor and a mathematical model about the motor working principle was described also. To get good motion effect, a motor driving control system with a current loop and a speed loop was developed. The current loop consists of maximum torque per ampere control and field weakening control. The speed loop is based on a sliding mode control. To make the EV working more smooth, stable and safer, its traction control includes driving motor control and wheel braking control. During some acceleration or cornering, wheel braking control is introduced to keep driving wheels in good slip states, especially to make the car in a good stable and safe state. Simulation study based on MATLAB/Simulink showed the control strategy developed here can make the EV work well, even when it runs on some asymmetric road.

scholarly journals Current Regulator Design for Dual Y Shift 30 Degrees Permanent Magnet Synchronous Motor

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 777
Author(s):  
Zhihong Wu ◽  
Weisong Gu ◽  
Yuan Zhu ◽  
Ke Lu ◽  
Li Chen ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Pulse Width Modulation ◽  
Sliding Mode ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Current Control ◽  
Parameter Uncertainties ◽  
Control Loops ◽  
Decomposition Space ◽  
Harmonic Currents

This paper gives the current regulator design for a dual Y shift 30 degrees permanent magnet synchronous motor (DT_PMSM) based on the vector space decomposition (VSD). Current regulator design in α-β subspace is insufficient and designing additional controllers in x-y subspace is necessary to eliminate the harmonic currents due to the nonlinear characteristics of the inverter. A sliding mode controller based on an internal model is proposed in α-β subspace, which is robust to the parameter uncertainties and disturbances in current control loops. In order to eliminate the harmonic currents in x-y subspace, a resonant controller is employed based on a new synchronous rotating matrix. Three-phase decomposition space vector pulse width modulation (SVPWM) technique is illustrated for the purpose of synthesizing the voltage vectors in both subspaces simultaneously. The feasibility and efficiency of the suggested current regulator design are validated by a set of experimental results.

scholarly journals Sliding Mode Based Control of Dual Boost Inverter for Grid Connection

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4241 ◽  
Author(s):  
Diana Lopez-Caiza ◽  
Freddy Flores-Bahamonde ◽  
Samir Kouro ◽  
Victor Santana ◽  
Nicolás Müller ◽  
...  
Keyword(s):  
Control Method ◽  
Controller Design ◽  
Sliding Mode ◽  
Current Control ◽  
Voltage Step ◽  
Control Loops ◽  
Voltage Ratio ◽  
Grid Connection ◽  
Resonant Controller ◽  
Laboratory Prototype

Single-stage voltage step-up inverters, such as the Dual Boost Inverter (DBI), have a large operating range imposed by the high step-up voltage ratio, which together with the converter of non-linearities, makes them a challenge to control. This is particularly the case for grid-connected applications, where several cascaded and independent control loops are necessary for each converter of the DBI. This paper presents a global current control method based on a combination of a linear proportional resonant controller and a non-linear sliding mode controller that simplifies the controller design and implementation. The proposed control method is validated using a grid-connected laboratory prototype. Experimental results show the correct performance of the controller and compliance with power quality standards.

scholarly journals Evaluation of Efficient Operation for Electromechanical Brake Using Maximum Torque per Ampere Control

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1869 ◽  
Author(s):  
Seung-Koo Baek ◽  
Hyuck-Keun Oh ◽  
Joon-Hyuk Park ◽  
Yu-Jeong Shin ◽  
Seog-Won Kim
Keyword(s):  
Permanent Magnet Synchronous Motor ◽  
Current Control ◽  
Experimental Results ◽  
Input Current ◽  
Maximum Torque ◽  
Element Analysis ◽  
Efficient Operation ◽  
Current Controller ◽  
Maximum Torque Per Ampere ◽  
Electromechanical Brake

This paper deals with efficient operation method for the electromechanical brake (EMB). A three-phase interior permanent magnet synchronous motor (IPMSM) is applied to the EMB operation. A current controller, speed controller, and position controller based on proportional-integral (PI) control are used to drive the IPMSM. Maximum torque per ampere (MTPA) control is applied to the current controller to perform efficient control. For MTPA control, the angle β is calculated from total input current, and the synchronous frame d–q axis current reference is determined by the angle β. The IPMSM is designed and analyzed with finite element analysis (FEA) software and current control is simulated by Matlab/Simulink using a motor model designed by FEA software. The simulation results were verified to compare with experimental results that are input current and clamping force of caliper. In addition, the experimental results showed that the energy consumption is reduced by MTPA.

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