Day: November 10, 2023

PM Motor vs Induction Motor: Which is Better for Efficiency and Performance?

The choice between a permanent magnet (PM) motor and induction motor is crucial for many applications requiring high efficiency and performance. With electrification accelerating across industries, understanding the key differences between these two motor types is critical.

PM motors offer higher efficiency and torque density compared to induction motors. However, induction motors have historically been more widely available and cost effective. Recent advances in PM materials like neodymium magnets have made PM motors more viable for a range of uses.

Let’s compare PM and induction motors on factors like efficiency, torque production, speed control, cost, and materials.