stacked stators and rotors PMA

[GoVertical]

Hi, I am still working larger v-belt pulley.

Posting know specs of newest PMA configuration:
3 phase Star/ 12 coils per phase
coils: 2 in hand 22 AWG, 100 turns
phase resistance 9.7 ohms, measured at output to output
16 magnets/rotor, 1 x ¾ N42 cylinders

Measured using 12 volt battery as load:
190 RPM
Vdc = 11.5
Amps dc = 3.5

I will post more measured values when available. Thank you for all the help I am receiving.


Hallo, ich bin immer noch arbeiten größeren Keilriemenscheibe.

Posting wissen Spezifikationen der neuesten PMA-Konfiguration:
3-Phasen-Star / 12 Spulen pro Phase
Spulen: 2 in der Hand 22 AWG, 100 Windungen
Phase Widerstand 9,7 Ohm, Ausgang zu Ausgang gemessen
16 Magnete / Rotor, 1 x ¾ N42 Zylinder

Gemessen mit 12-Volt-Batterie als Last:
190 Umdrehungen pro Minute
Vdc = 11,5
Amps dc = 3,5

Ich werde nach mehr Messwerte, wenn verfügbar. Vielen Dank für alle Hilfe, die ich erhalte.

testfixture1.jpg (142.15 KiB) 8887-mal betrachtet

[GoVertical]

Projekt Aktualisierung: gelöst Antriebsriemen rutscht Thema. Ich verband die drei Stator als 3-Phasen-Stern mit 4 Spulen pro Phase dann verbunden jedem Stator in parallel. Gemessen dc = 4,7 Ampere @ 300 RPMs, Batterie Lastspannung = 11,7, Innenwiderstand von Phase zu Phase-Ausgang ausgegeben = 1,4 Ohm gemessen. PMA läuft glatt Prüfvorrichtung.




Project update: resolved drive belt slipping issue. I connected the three stator as 3 phase star with 4 coils per phase then connected each stator in parallel. Measured dc amps = 4.7 @ 300 RPMs, battery load voltage = 11.7, internal resistance measured from phase output to phase output = 1.4 ohms. PMA running smooth on test fixture.

[GoVertical]

Hallo, ich bin der Suche nach Einstellung der Riemenscheibe Verhältnisse sehr verwirrend. Ich habe gerade gemessen 6,5 Ampere @ 360 RPM

Statoren in parallel geschalteten

Hi, I am finding adjusting the belt pulley ratios very confusing. I just measured 6.5 amps @ 360 RPM

3phaseConnPar.jpg (57.58 KiB) 8849-mal betrachtet

[Bernd]

I am wondering why you get 1,4 ohm after connecting in parallel.
Each phase has 9,7 ohm so three of them in parallel should have together around 3,2 ohm.

Grüsse

Bernd

[GoVertical]

I am wondering why you get 1,4 ohm after connecting in parallel.
Each phase has 9,7 ohm so three of them in parallel should have together around 3,2 ohm.

Grüsse

Bernd

Hi, I measured from one phase output to another phase output. Today I am testing the output current from 1,2, and 3 parallel stator combinations and I will check the valves again. I will post results when available.



Hallo, maß ich von einer Phase-Ausgang zu einer anderen Phase-Ausgang. Heute teste ich den Ausgangsstrom von 1,2 und 3 parallel Stator-Kombinationen, und ich werde die Ventile erneut prüfen. Ich werde nach Ergebnissen, wenn verfügbar.

[GoVertical]

Today’s test result:

1 Stator Phase output to phase output = 4.3 ohms

load voltage_____ dc amps______ PMA RPM
11.67_______ 0.38_______ 190
11.75_______ 2.06________ 310
11.86_______ 3.8________ 440

2 Stators Phase output to phase output = 2.4 ohms
11.61_______ 0.51________ 189
11.74_______ 2.6________ 288
11.85________ 3.8________ 340

3 stators Phase output to phase output = 1.9 ohms
12.0_______ 0.03_______ 150
11.41_______ 1.56_______ 186
12.6 _______ 2.95________ 270

Each stator was configured as a star 3 phase.
I only changed the drive belt on the lathe to create different speeds at the PMA.
Data was recorded adding stators in a parallel configuration at the different speed produced by the test fixture.

[GoVertical]

Project update:
Connected stator A and B in series, then connected stator C in parallel with A and B
internal resistance = 1.9 ohms
using 12 volt battery as test load
Amps______RPM
0.006______100
1.46_______184
5.0________300

values measured using test fixture
Comments welcome, enjoy the day