Direct torque control sensorless on three-level inverter permanent magnet synchronous motor based on sliding mode observer

<span>This article presents an improved Direct Torque Control (DTC) technique with space vector modulation (SVM) for a five-phase permanent magnet synchronous motor (PMSM) using a sliding mode speed control (SMC).The proposed control scheme of the five-phase PMSM combines the advantages of SMC control and the SVM algorithm. The SMC method insensitive to uncertainties, in particular external disturbances and parameter variations. In this paper, the SMC controller is used to control the rotor speed of the five-phase PMSM based on DTC-SVM. The rotor speed response, torque and stator flux are determined and compared with traditional control method. The simulations results confirm the validity and effectiveness of the proposed control technique in terms of performance and robustness against machine parameter variations (inertia variation). The efficiency of the proposed method applied on the five-phase PMSM is verified by the MATLAB/Simulink.</span>

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Closed-loop Torque Control for Permanent Magnet Synchronous Motor by Super-Twisting Algorithm Based Sliding-Mode Observer Considering Demagnetization

2020 IEEE 29th International Symposium on Industrial Electronics (ISIE) ◽

10.1109/isie45063.2020.9152279 ◽

2020 ◽

Author(s):

Kaihui Zhao ◽

Aojie Leng ◽

Jinhua She ◽

Changfan Zhang ◽

Jing He ◽

...

Keyword(s):

Permanent Magnet ◽

Closed Loop ◽

Sliding Mode ◽

Permanent Magnet Synchronous Motor ◽

Synchronous Motor ◽

Sliding Mode Observer ◽

Torque Control ◽

Twisting Algorithm

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The Novel Control Technologies Used in Permanent Magnet Synchronous Motor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.732-733.1125 ◽

2013 ◽

Vol 732-733 ◽

pp. 1125-1128

Author(s):

Jun Li Zhang ◽

Yu Ren Li ◽

Li Li Xie

Keyword(s):

Permanent Magnet ◽

Pid Control ◽

Sliding Mode ◽

Permanent Magnet Synchronous Motor ◽

Synchronous Motor ◽

Sliding Mode Observer ◽

Torque Control ◽

Control Technology ◽

Fuzzy Pid ◽

Fuzzy Pid Control

In order to improve the torque control performance of permanent magnet synchronous motor, variable frequency variable speed control technology, vector control technology, direct torque control technology and sensorless control technology were analyzed. The fuzzy + PID control technology used in permanent magnetic synchronous motor was introduced in detail. The conventional sliding mode observer based on the counter electromotive force estimate control technology and the structure of improved sliding mode observer was given separately. The fuzzy + PID control technology and improved sliding mode observer control technology proposed could improve the dynamic performance and static performance of the permanent magnet synchronous motor.

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Direct Torque Control of Permanent Magnet Synchronous Motor Based on Fast Terminal Sliding Mode

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.128-129.819 ◽

2011 ◽

Vol 128-129 ◽

pp. 819-824

Author(s):

De Jiang Zhang ◽

Niao Na Zhang ◽

Yong Qing Wang ◽

Ke Wei Liu

Keyword(s):

Permanent Magnet ◽

Sliding Mode ◽

Permanent Magnet Synchronous Motor ◽

Direct Torque Control ◽

Torque Ripple ◽

Synchronous Motor ◽

Torque Control ◽

Terminal Sliding Mode ◽

Fast Terminal Sliding Mode ◽

Chattering Free

To solve the problems of large flux linkage and torque ripple, difficulty to accurately control at very low speed in the conventional direct torque control (DTC) of permanent magnet synchronous motor (PMSM), the chattering free fast terminal sliding mode (FTSM) control is introduced into the PMSM DTC. The proposed control scheme not only preserves fast torque response merit, but also associates with the high robustness of terminal sliding mode. It can drive torque ripple to converge to the equilibrium point in finite time, reduce steady state error, has stronger robustness to motor parameter and disturbance,and it attenuates the chatter. This stability of system is proved by Lyapunov theorem in this paper. The simulation results are presented to the feasibility and effectiveness of this method.

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