Low torque ripple drive of induction motor by multi-step PWN inverter.

1990 ◽  
Vol 110 (9) ◽  
pp. 948-956
Author(s):  
Tokuo Ohnishi ◽  
Yasunori Inoue
Keyword(s):  
Induction Motor ◽  
Torque Ripple ◽  
Low Torque

3-Level Inverter Fed Direct Torque Control of Induction Motor without Using Medium Vectors

2014 ◽  
Vol 573 ◽  
pp. 150-154
Author(s):  
R. Dharmaprakash ◽  
Joseph Henry
Keyword(s):  
Induction Motor ◽  
Control Algorithm ◽  
Natural Extension ◽  
Direct Torque Control ◽  
Torque Ripple ◽  
Torque Control ◽  
Control Scheme ◽  
Low Torque ◽  
Torque Ripples ◽  
Steady State Performance

This paper proposes the natural extension of classic switching table based direct torque control of induction motor modified for 3-level diode clamped inverter. The proposed method has the advantages of fewer harmonic in the output and low torque ripples. The switching table direct torque control scheme is adopted due to the simplicity of its control algorithm. To demonstrate the performance of proposed multilevel inverter fed direct torque control, the simulations are carried out for constant speed under no load and step change in load. The comparison of the dynamic and steady state performance in terms of torque ripple of the 2-level inverter and 3-level inverters are presented.

scholarly journals A Modified Model Predictive Torque Control with Parameters Robustness Improvement for PMSM of Electric Vehicles

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 132
Author(s):  
Siyu Gao ◽  
Yanjun Wei ◽  
Di Zhang ◽  
Hanhong Qi ◽  
Yao Wei
Keyword(s):  
Real Time ◽  
Torque Ripple ◽  
Torque Control ◽  
Parameter Mismatch ◽  
Modified Model ◽  
Simulation And Experiment ◽  
Drive Systems ◽  
Low Torque ◽  
Time Update ◽  
Model Reference Adaptive

Model predictive torque control with duty cycle control (MPTC-DCC) is widely used in motor drive systems because of its low torque ripple and good steady-state performance. However, the selection of the optimal voltage vector and the calculation of the duration are extremely dependent on the accuracy of the motor parameters. In view of this situation, A modified MPTC-DCC is proposed in this paper. According to the variation of error between the measured value and the predicted value, the motor parameters are calculated in real-time. Meanwhile, Model reference adaptive control (MRAC) is adopted in the speed loop to eliminate the disturbance caused by the ripple of real-time update parameters, through which the disturbance caused by parameter mismatch is suppressed effectively. The simulation and experiment are carried out on MATLAB / Simulink software and dSPACE experimental platform, which corroborate the principle analysis and the correctness of the method.

Reduction of Torque Ripple in Induction Motor Drives Using an Advanced Hybrid PWM Technique

2010 ◽  
Vol 57 (6) ◽  
pp. 2085-2091 ◽  
Author(s):  
Kaushik Basu ◽  
J S Siva Prasad ◽  
G Narayanan ◽  
Harish K Krishnamurthy ◽  
Rajapandian Ayyanar
Keyword(s):  
Induction Motor ◽  
Torque Ripple ◽  
Motor Drives ◽  
Induction Motor Drives
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