A Comprehensive Review of Restarting Strategies for Free Running Induction Motor Drives

Inverter-fed induction motor (1M) drive systems find extensive applications in various industries. However, in certain scenarios, these systems may encounter short-term power interruptions, necessitating a swift and seamless restarting of free running motors. This paper highlights the importance of fast and smooth restart strategies for free running motors in inverter-fed 1M drives. The need for efficient free running techniques becomes evident as such interruptions can lead to operational disruptions and production losses. The review explores the existing methods, their advantages, limitations, and potential areas for improvement, aiming to enhance the reliability and performance of inverter-fed 1M drive systems. The findings of this research contribute valuable insights to researchers, engineers, and practitioners seeking to optimize motor drive systems in the face of momentary power interruptions. The further research directions in the field of free-running restoration are also recommended.