Huge 17kW BLDC motor with hall sensors

Just a test run. 6kRPM only.

Category:

Science & Technology

Tags:

• MVI
• 1089

[TKTmon]

is that one of those bigass turnigys that's supposed to take the place of a 100cc engine?

[circuitdotlt]

@TKTmon Yes, it is. But it's inductance is so low, that no controller is able to drive it without going in flames. HF filtering is needed.

[maximilianlindner]

I use a piktronik controller. It's at a very high grade controller. the hobbyking aquastar is really good as well for the price. The motors i've tested were the c80-180 also from turnigy. I run them at 2500 watt without cooling in a closed aluminium case. They can stand that for a while, but now i'm looking for something bigger. The c80-180 have also some quality issues. The bearings are rough after a few minutes and the stator is made really poor. Although it is a good price for the power.

[circuitdotlt]

@maximilianlindner

Thanks for info. I have looked into piktronik controllers and they seem to be very big and heavy. What controller do you use with C80-180? What voltage do you run it at and what RPM and current do you get with no load? Have you fitted position sensors? How much do these controllers go for?

I have used this motor myself:

/watch?v=jtr4dd-nNwI

..With simple ebike controller, but power consumption and excess heat were enormous. Now I mounted it directly on reducer, need controller

[maximilianlindner]

hi, I use this motor for several applications. It is a very nice piece of work! Can you tell me what kind of modifications you did to this motor? How did you get 17KW out of it? Did you modify the bearings? ragards Max

[circuitdotlt]

@maximilianlindner

17kW is only a theoretical value, volts*amps. I have never tested it over 1kW, as I do not have a good controller. All chinese controllers are fried now.

What controller do you use?

[TKTmon]

I want this on a bike

[maximilianlindner]

Look for the sac 4 from piktronik, they come from austria. It can handle 220 amps and 48 volts with water cooling permanently!

[circuitdotlt]

@flightman2005 I have tried (and fried) many chinese controllers. They are useless. So now I am designing my own. My company, to be specific.

In this video I ran it with Crystalyte controller and had big power consumption (14 amps instead of 0,5-1 expected). Also a few hours later that controller blew up. No load, no reason. Useless.

The motor is biggest available Turnigy, purchased from hobbyking and modified. These can not be use without serious modifications - complete rebuild in some cases.

[flightman2005]

whoo made this motor and what kind ow ESC you use ?