Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

101

Mittwoch, 14. November 2018, 17:45

You're right. I should have said no 12n10p instead of scorpion. But still none of them are 1. This is certain so we cant change that with several pages of spite. No one will consider "calculators" or math formulas not openly presented. I'm sorry there is no real contribution. Please don't confuse my post to mean I need or care about this calculator. I don't believe it exist and feel confident in the accepted confirmable calculation methods of SE Skaar, O. Krovel, R. Nilssen where

Kw = (sin (1 / 2nσ) ) / (zsin (nσ / 2z)) xcos (1 / 2nε).

This is has been reviewed and accepted by the IEEE so It works for most of the world maybe here is different. Part of the world must be Felix Niessenwho's winding scheme calculator concurs with the same result.
IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!

Dieser Beitrag wurde bereits 2 mal editiert, zuletzt von »Cohesive« (14. November 2018, 23:37)


Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

102

Donnerstag, 15. November 2018, 04:58

To find better efficiency between two motors the winding factor is not needed anyway. Its very simple. All you need is to calculate the THD %. And all you need to do this is a FFT scope shot of the generated emf wave measured in watts ,voltage, or dBm's

Thd(%)= the square root of (V3^2+V5^2+V7^2+V9^2+V11^2........+V(odd harmonic order)^2))/V1 where Vn is the rms voltage. n=harmonic order. In power systems a lower Thd translates to a higher power factor, lower peak currents and higher efficiency.
IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!

Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »Cohesive« (15. November 2018, 05:04)


Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

103

Mittwoch, 21. November 2018, 06:37

Hi ChX,
What fun!!! :D
The APD Pro HV drive is here is and it's smaller and lighter than a tyrannosaurus turd @ 220 grams with the cables!! The footprint is 77x52x27 mm. Half the height! The peak power delivery from this ADP is 40 Kw at 400 amps while ADPs 16s controller is 400 amps continuous 600 amps peak and still in the same footprint of 77X52x27mm. Also @ 40 Kw peak. Hopefully over the holidays I can finish a few winds and record some real numbers.

:kaffee:

TIA.
IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!

Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

104

Mittwoch, 28. November 2018, 04:26

So its re-worked. A dual layer 2+1 (3 turn) wind with 2X 1.291mm conductors. A 13 Ga. equivalent in medusa's head. The Kw is .94947. Kv should be 333 in a delta or 385 in a parallel wye. The 4 wire UVW terminals bring a Preece rating of 468 amperes. Clearly in 1 16 ga wire we could fit 7 turns easily in the slots.

IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!

Dieser Beitrag wurde bereits 5 mal editiert, zuletzt von »Cohesive« (28. November 2018, 05:01)


Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

105

Mittwoch, 12. Dezember 2018, 00:17

Hi Christian,

Gerling has not the only solution. This paper highlights the 24N22P machine! I will have to buy this paper. :)


· Electric Power Components and Systems 45(20):1-12
DOI: A Systematic Approach for Developing Electric Machine Windings with Suppressed MMF Space Harmonics
March 2018
· 10.1080/15325008.2017.1378950
Nanjun Tang
· Ian P. Brown

or

A Fractional Slot Concentrated Winding (FSCW) configuration for outer rotor squirrel cage induction motors



May 2015

DOI:
· 10.1109/IEMDC.2015.7409031

Conference: 2015 IEEE International Electric Machines & Drives Conference (IEMDC)
Vivek. M. Sundaram
· Hamid ToliyatHamid Toliyat

Highlights stator improvements for FSCW outer rotor machines. 24N10P Ceiling fan stator! Enjoy the information contained in the pages. :rose:
»Cohesive« hat folgende Bilder angehängt:
  • 4-Figure6-1.png
  • 4-Figure7-1.png
  • 6-Figure12-1.png
IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!

Dieser Beitrag wurde bereits 1 mal editiert, zuletzt von »Cohesive« (12. Dezember 2018, 00:28)


Cohesive

RCLine User

  • »Cohesive« ist der Autor dieses Themas

Wohnort: Research Triangle Park

Beruf: Daimler Robot Tech

  • Nachricht senden

106

Gestern, 23:48

I had to do it. I couldnt resist. 1.8288 in three single layer turns. I Knicked the enamel but it fits. So this will be my wind a three turn single layer delta and a 3 turn dl delta. This will give me a high pole count fast runner and slow runner to test with APD.
»Cohesive« hat folgendes Bild angehängt:
  • 21.jpg
IEEE member 93895120
My Gallery


AND NO I DID NOT VOTE FOR HIM!