一种少稀土组合磁极的Halbach永磁同步电机转子
By using a Halbach rotor with fewer rare-earth composite magnetic poles in a rare-earth permanent magnet synchronous motor, and by optimizing the magnetic pole design using a combination of non-rare-earth ferrite and rare-earth neodymium iron boron materials, the problem of large usage of rare-earth permanent magnet materials is solved, achieving high-efficiency electromagnetic torque performance and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEILONGJIANG UNIV
- Filing Date
- 2023-02-03
- Publication Date
- 2026-07-17
AI Technical Summary
Rare earth permanent magnet synchronous motors use a large amount of rare earth permanent magnet materials, resulting in high manufacturing costs. They are also heavily reliant on rare earth resources, which cause significant price fluctuations.
The Halbach permanent magnet synchronous motor rotor, which uses a combination of non-rare earth ferrite and rare earth neodymium iron boron materials, combined with the Halbach array structure, optimizes the magnetic pole design to reduce the amount of rare earth and improve electromagnetic torque performance.
It effectively reduces the amount of rare earth permanent magnet materials used, increases the torque density and magnetic flux density of the motor, reduces iron loss, widens the speed range, and reduces manufacturing costs.
Smart Images
Figure CN116094216B_ABST