Windind change ACIM industrial motor + inverter note-e power

Tell us about the project you do with the open inverter
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

Hi people!

Earlier, I met here somewhere an interest in industrial inexpensive motors for the purpose of reworking. but I didn't see the results.
Then let me be the first :evil:

an industrial acim with 4 kW and 8 poles (4 pairs) was purchased for the maximum size of the motor in the minimum power rating (this will come in handy later for the police). I decided to rewind the motor itself by making 2 turns instead of the regular 26 but increasing the cross section. the length of one phase harness was 10 meters. as an A/B sensor, I will use a special bearing to replace the regular one, it already has a built-in sensor for 80 pulses per revolution.
IMG-20220922-WA0033.jpeg
IMG_20221007_172326.jpg
mmexport1661769233805.jpg
evil neodymium :twisted:
User avatar
Ev8
Posts: 801
Joined: Sat Jan 30, 2021 11:05 am
Has thanked: 41 times
Been thanked: 149 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Ev8 »

Interested to see you results, any pictures of the re wound stator?
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

IMG_20220921_182547_1.jpg
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

Ev8 wrote: Fri Oct 07, 2022 3:56 pm any pictures of the re wound stator?
in the second photo, two new phases have already been wound. the third phase I am winding right now))
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

in the future, I expect to connect this with the standard gearbox of an old USSR car and see if an industrial converted motor can be compared with a small Tesla motor (the dimensions are quite comparable, I have an even closer size in the ldu motor).
my phase cross section is now 21 square mm
evil neodymium :twisted:
User avatar
Ev8
Posts: 801
Joined: Sat Jan 30, 2021 11:05 am
Has thanked: 41 times
Been thanked: 149 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Ev8 »

Romale wrote: Fri Oct 07, 2022 3:58 pm in the second photo, two new phases have already been wound. the third phase I am winding right now))
Sorry thought that was a before photo as you said you’ve rewound to 2 turns, it looks more
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

Ev8 wrote: Sat Oct 08, 2022 8:07 am Sorry thought that was a before photo as you said you’ve rewound to 2 turns, it looks more
so after all, the winding is performed not by one wire, but by a whole group of parallel ones. )))
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

IMG_20221008_211830_1.jpg
skf bearing in replacement of the regular one. The new one contains a built-in A/B signal encoder.
IMG_20221008_211706_1.jpg
rotor length 120mm
IMG_20221008_213615_1.jpg
inner diameter of the stator 160mm
IMG_20221008_213305_1.jpg
I have completed a new winding. it remains to clean a lot of ends and make tips, tie the frontal lobes with a cord and impregnate it with electrical varnish.
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

does anyone know the dimensions of the rotor/stator of the SDU and LDU motor for comparison with this industrial one?
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

while the big motor is not ready, I decided to test the performance of the power module from Nissan note-e
evil neodymium :twisted:
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

what is your total number of turns per phase? Now I use an engine rewound by 12 turns per phase if I turn it into a star. as it turned out, this is a lot and the car easily eats 60 km per hour. this is 150 Hz. then there is a strong weakening of the field. If you turn it on with a triangle, the inverter does not pull it. Protection for 500 amps rms is triggered. the ends of 16 squares come out of the engine. and the battery voltage is 132 volts.
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

the number of turns 8-9 and an 800 amp rms inverter would suit me
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

yaroslav wrote: Tue Oct 11, 2022 8:34 pm what is your total number of turns per phase?
it depends very much on the size of the motor, the diameter of the rotor and the length of the groove. also depends on the number of poles. my motor contains 48 slots for the wire and is eight-pole (4 pairs of poles), I wound two turns in one groove. only one phase contains 16 turns (8 coils) . I do not know how well it will go. I may have to redo it after testing.
evil neodymium :twisted:
arber333
Posts: 3241
Joined: Mon Dec 24, 2018 1:37 pm
Location: Slovenia
Has thanked: 74 times
Been thanked: 223 times
Contact:

Re: Windind change ACIM industrial motor + inverter note-e power

Post by arber333 »

yaroslav wrote: Tue Oct 11, 2022 8:34 pm what is your total number of turns per phase? Now I use an engine rewound by 12 turns per phase if I turn it into a star. as it turned out, this is a lot and the car easily eats 60 km per hour. this is 150 Hz. then there is a strong weakening of the field. If you turn it on with a triangle, the inverter does not pull it. Protection for 500 amps rms is triggered. the ends of 16 squares come out of the engine. and the battery voltage is 132 volts.
By 150Hz you mean the best torque/power frequency or the weakening transition?
I remember i had this at 120Hz with LV winding and later on with HV i could extend it towards 150Hz. But i belive it was so because we wound it with a bit of lower RMS voltage in mind. This meand OI can be adapted in parameters settings. But if i stretched that frequency motor would become lazy in response.
Delta (triangle) winding is not advisable in a car. There is just too fast torque drop after innitial pull. Maybe if we could make this switchable during the drive we could have a launch gear and travel gear :).
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

Romale wrote: Wed Oct 12, 2022 7:22 pm it depends very much on the size of the motor, the diameter of the rotor and the length of the groove. also depends on the number of poles. my motor contains 48 slots for the wire and is eight-pole (4 pairs of poles), I wound two turns in one groove. only one phase contains 16 turns (8 coils) . I do not know how well it will go. I may have to redo it after testing.
It all depends on the supply voltage, the dimensions of the rotor are almost comparable to mine, 132 dimensions of 3 pairs of poles 960 revolutions and 54 grooves
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

arber333 wrote: Wed Oct 12, 2022 7:36 pm By 150Hz you mean the best torque/power frequency or the weakening transition?
I remember i had this at 120Hz with LV winding and later on with HV i could extend it towards 150Hz. But i belive it was so because we wound it with a bit of lower RMS voltage in mind. This meand OI can be adapted in parameters settings. But if i stretched that frequency motor would become lazy in response.
Delta (triangle) winding is not advisable in a car. There is just too fast torque drop after innitial pull. Maybe if we could make this switchable during the drive we could have a launch gear and travel gear :).
In fact, I already have a field attenuation of 100 Hz, but the car easily accelerates 60 km per hour, and the maximum speed turned out to be 90 km per hour, which is a little more than 200 hz, but for a long time
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

Here I took a video of overclocking

User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

yaroslav wrote: Tue Oct 11, 2022 8:34 pm Now I use an engine rewound by 12 turns per phase .....battery voltage is 132 volts.
how many turns do you have in ONE coil?
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

yaroslav wrote: Thu Oct 13, 2022 4:30 pm Here I took a video of overclocking.....
which controller is used with this and can you attach your settings file? have you thought to raise the voltage twice at least?
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

yaroslav wrote: Thu Oct 13, 2022 4:02 pm which is a little more than 200 hz, but for a long time

why not use more rpm/frequency and more gear ratio (ride the second one for example) ??
I plan to use a motor at 6000 rpm (400 Hz)
evil neodymium :twisted:
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

Romale wrote: Thu Oct 13, 2022 9:03 pm how many turns do you have in ONE coil?
In one coil there are 2 turns in 3 parallels, it turns out 6 turns
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

Romale wrote: Thu Oct 13, 2022 9:04 pm which controller is used with this and can you attach your settings file? have you thought to raise the voltage twice at least?
Controller with 12 mosfet IRFP4668, so the voltage will not be raised, they are only 200 volts.
I will publish the settings file later
yaroslav
Posts: 176
Joined: Tue Aug 13, 2019 4:32 pm
Location: Russia, Stavropol
Has thanked: 14 times
Been thanked: 5 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by yaroslav »

On the second, it accelerates faster, but up to 40 km per hour, then sluggish acceleration
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

yaroslav wrote: Fri Oct 14, 2022 7:07 pm In one coil there are 2 turns in 3 parallels, it turns out 6 turns
3 parallels?? and what is the cross-section of one wiring? it is difficult to wind a good amount of cross section with very thick wires
evil neodymium :twisted:
User avatar
Romale
Posts: 441
Joined: Fri May 20, 2022 4:16 pm
Location: Romania
Has thanked: 204 times
Been thanked: 45 times

Re: Windind change ACIM industrial motor + inverter note-e power

Post by Romale »

I have 2 turns of 28 wires made in one coil in parallel. the diameter of one wiring is 1 mm.
evil neodymium :twisted:
Post Reply