Permanent magnet machines
Permanent magnet machines have significantly better efficiency in slow-speed, direct-drive applications. That’s why they’re becoming the standard choice in large LNG and LPG carriers, which typically use an in-line shaft generator.
In this talking point, you will learn:
- Why the use of permanent magnet machines is growing in popularity
- The weaknesses of electrically excited synchronous generators (EESGs)
- Drawbacks of induction machines
- Comparison of efficiencies at different speeds and load (torque) levels