Whether to use a distributed winding as a winding method for BLDC motors? 1

[BCLEE-kr]

Hello,

In general, the book introduces that the winding method of a BLDC motor selects the concentrated winding, and the winding method of a permanent magnet synchronous motor selects the distributed winding.

Is distributed winding impossible for BLDC Motor?

Thank you in advance.

 

[edison123]

There is no distributed windings in DC machines whose connections are vastly different from AC machines.

Muthu

http://www.edison.co.in

 

[waross]

I thought that a Brush Less D C motor was an AC machine.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[RedSnake]

Brushless servomotors
When brushless became fashionable some years ago, it existed differing opinions on the terms "AC servomotor" and brushless "DC servomotors".
This is because they to its design has more in common with the AC than DC motor, while its control, properties and applications, on the other hand, have significantly more similarities with DC servomotors than with conventional AC machines.
The term "brushless servomotor" covers all variants of servomotors that have electronic commutation instead of mechanical.

/A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[edison123]

Bill

Even a DC machine is an "AC machine" at the armature level. It is at the commutation point, whether mechanical or electronic, it's characteristics are different. There is no distribution factor in the DC machine EMF equation.

Muthu

http://www.edison.co.in

 

[waross]

If the BLDC motor is a salient pole type, as many out runners are, distributed windings don't match well with salient poles.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[IRstuff]

I don't know if that's strictly true; I know that we've acquired systems with distributed windings that were digitally controlled, but I'm not sure if there was something unique in the commutation; nevertheless, I think that the windings were distributed to minimize cogging, which was a bigger issue for our application.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

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[IRstuff]

There's a big difference between a stepper motor application vs. a servo motor application. In the former, cogging helps you, while in the latter, it's very task specific; in our application, which was a servo-ish application, cogging was BAD.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

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[BCLEE-kr]

Thank you for your explanation.