Comparative Analysis of Speed Control of Induction Motor by DTC over Scalar Control Technique

[摘要] This paper presents comparative analysis of induction motor speed control by DTC and Scalar control technique. The both Scalar control and direct torque control techniques are proposed. Speed control of induction motor under No-Load and Load conditions by both scalar and DTC control techniques. The basic two-level voltage source inverter is fed to three phase induction motor. SVPWM technique is used to generate switching signals for reference speed signal. The sensor-less speed controlling technique is used in the DTC control technique for speed estimation. The test simulation results are proposed in details verified MATLAB/Simulink.

[关键词] speed control;I.M;scalar;DTC;SVPWM