SVPWM DTC Implementation for Induction Motor Drives

In this article, we will discuss SVPWM DTC (Space Vector Pulse Width Modulation Direct Torque Control) for induction motor drives. Induction motor drives represent a crucial industrial application, offering advantages such as high efficiency, low cost, and easy maintenance. SVPWM DTC is a modern control technique that enables improved motor operation control and enhances overall system efficiency. The implementation typically involves calculating stator flux and torque errors using Clarke transformation, then selecting appropriate voltage vectors from the six-sector SVPWM scheme to minimize these errors through hysteresis controllers. We will comprehensively examine the principles and implementation methods of SVPWM DTC, including MATLAB code examples for flux and torque estimation algorithms, and demonstrate its application in induction motor drives. Furthermore, we will analyze the advantages and limitations of SVPWM DTC, supported by practical examples illustrating its effectiveness in industrial applications through performance comparison graphs and simulation results.