170 watts in - 1600 watts out - looped - Very impressive build and video

[oscar]

Hi Pierre,
thanks for re-plublishing your 4 videos on your channel

Hi all,
attached is an animated gif of  Pierre's switching sequence as I understand it

I started out drawing the small static image at the bottom of this posting showing 36 coils, with 1 set of 6 coils energized (the coloured lines),
- red and blue symbolizing magnetic N and S
- the numbers in the image symbolize the 36 slots
- the depicted coils are "wound"  according to Pierre's magic numbers as proven true by r2fpl

...a coil span of 6 slots ...
01-06 07-12 13-18 19-24 25-30 31-36
02-07 08-13 14-19 20-25 26-31 32-01
03-08 09-14 15-20 21-26 27-32 33-02
04-09 10-15 16-21 22-27 28-33 34-03
05-10 11-16 17-22 23-28 29-34 35-04
06-11 12-17 18-23 24-29 30-35 36-05

I note that his one has his magic number sequence 01-06 ; 02-07; 03-08, etc. see post #170.

the animation is meant to show two coil sets (each consisting of 6 coils) energized overlapping in time, to not interrupt the field, as per Pierre's advice.

[r2fpl]

oscar, 
excellent animation 

It is possible that power on allways 36 coils but only 6 changes off.

Pierre could also do that and talk about 6 not on but off.

[T-1000]

the animation is meant to show two coil sets (each consisting of 6 coils) energized overlapping in time, to not interrupt the field, as per Pierre's advice.

When watching Pierre's 1st video https://www.youtube.com/watch?v=B7BZeeJmvjY in slow motion you will notice there are 7 LEDs activated at the end of 6 relay switch activation cycle. Not sure why 7 as there is 3 phase being rotated..
Also if you flip from one coil into neighboring second without having middle point activated it will cause spikes and nowhere near smooth transition from one to another.

[r2fpl]

When watching Pierre's 1st video https://www.youtube.com/watch?v=B7BZeeJmvjY in slow motion you will notice there are 7 LEDs activated at the end of 6 relay switch activation cycle. Not sure why 7 as there is 3 phase being rotated..
Also if you flip from one coil into neighboring second without having middle point activated it will cause spikes and nowhere near smooth transition from one to another.

No 7,  8 !  see 1 relay frame by frame.

1 relay, position (corner) left bottom.

There is more dependence here than we think.

[T-1000]

No 7,  8 !  see 1 relay frame by frame.

Well, apparently there is middle transition as I suspected. 12 relays have delayed active state for while 9 new LEDs are lit on arduino board.