Yes, heaps … new Teslas have benefited from lower weight and higher efficiency as a result of this transition to neo mag motors.
Running in circles. Outside of EVs or Tesla I mean. The Internal Permanent Magnet Synchronous Reluctance Motor as presented in the video.
haven’t seen much outside of these areas, especially automotive but there could more out there …
I was just intrigued by the amount of efforts going into these trade talks trying to secure the support of rare earth supplies and also the neo mags
I was just intrigued by the amount of efforts going into these trade talks trying to secure the support of rare earth supplies and also the neo mags
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They are quite important in electronics. This link https://www.mining.com/web/a-breakdown-of-the-critical-metals-in-a-smartphone/ shows not just neo but also many I'd never heard of. And I suspect the tip of the iceberg so to speak. Nature was quite clever to hide them in plain sight.
The higher end use is in, that will be difficult to use alternatives or do away with -
1. Wind Power
2. Tide Power 3. - Any power that is now directly derived as per new green initiatives.
3. EV to give the initial torque -
Basically it will crash all the green targets COP 29 - these targets have been signed off - and it will be a bureaucratic and leadership challenge to move away from these targets.
And now to achieve these targets the - Motors & Entire assemblies or sub assemblies - have to be made in the location with this recourse.
Including - Speakers , the freedom to use off the shelf neo mags and design own speakers - without having to order the the entire motor structure form a the region with the material is not available.
Technically, they are all electromagnets - I just meant it’s not a field coil that just wastes VI all the time just to get it magnetized. Losses in the rotor of an induction motor are proportional to load.
The speed/torque curve is the problem. There is a VERY narrow range of slip frequency where they are Worth A Damn, and if you want efficient operation at max power at ANY rpm, the voltage and frequency need to vary. Sine wave operation is preferable. 3rd harmonics are NOT good in a 3 phase system, and the effects of 5th and 7th fight each other. That used to be an SoB of a problem, hence the move to BLDC where pulse width is all that is needed to vary the speed. Electronic commutators are relatively easy to make, and fixed Vcc can be used. The price is the need for a permanent magnet, or the waste of a field coil.