HIGH-PRECISION SPEED CONTROL SYSTEM FOR THREE-PHASE INDUCTION MOTORS USING A MULTIPULSE CONVERTER AND ADVANCED OBSERVERS

Abstract

The present invention relates to a high-precision speed control system for three-phase squirrel-cage induction motors. It integrates advanced state observers to estimate unmeasurable variables and a sliding-mode controller with an equivalent strategy, ensuring robust speed and flux tracking. The system operates in the steady-state a-β frame, with an architecture validated through simulations demonstrating high accuracy, fast response, and low harmonic distortion. Its application spans industrial sectors such as robotics, electric vehicles, and automation, offering energy efficiency and regulatory compliance.