Advanced Control Strategy for Induction Motors Using Dual SVM-PWM Inverters and MVT-Based Observer

This paper introduces a novel field-oriented control (FOC) strategy for an open-end stator three-phase winding induction motor (OEW-TP-IM) using dual space vector modulation-pulse width modulation (SVM-PWM) inverters. This configuration reduces common mode voltage at the motor’s terminals, enhancing efficiency and reliability. The study presents a backstepping control approach combined with a mean value theorem (MVT)-based observer to improve control accuracy and stability. Stability analysis of the backstepping controller for key control loops, including flux, speed, and currents, is conducted, achieving asymptotic stability as confirmed through Lyapunov’s methods. An advanced observer using sector nonlinearity (SNL) and time-varying parameters from convex theory is developed to manage state observer error dynamics effectively. Stability conditions, defined as linear matrix inequalities (LMIs), are solved using MATLAB R2016b to optimize the observer’s estimator gains. This approach simplifies system complexity by measuring only two line currents, enhancing responsiveness. Comprehensive simulations validate the system’s performance under various conditions, confirming its robustness and effectiveness. This strategy improves the operational dynamics of OEW-TP-IM machine and offers potential for broad industrial applications requiring precise and reliable motor control.

• induction motor control
• field-oriented control
• space vector modulation
• pulse width modulation
• common-mode voltage reduction
• backstepping control
• sector nonlinearity
• linear matrix inequalities
• Lyapunov stability
• state observer

• 9 — Industrie, innovation et infrastructure

• Sensorless Control of Electric Motors
• Electric Motor Design and Analysis
• Multilevel Inverters and Converters
• induction motor control
• field-oriented control
• space vector modulation
• pulse width modulation
• common-mode voltage reduction
• backstepping control
• sector nonlinearity
• linear matrix inequalities
• Electrical and Electronic Engineering
• Engineering