Denzel D9000 motor any thoughts?

Overclocker

10 kW
Joined
Mar 17, 2014
Messages
794
Location
Philippines
54g1e97.jpg


http://www.eastgem.net/d9000.html

seems to be simply a slightly longer version of the D7500 i.e. same diameter but D9000 is 170mm long, D7500 is 127mm

any thoughts?
 
If the magnets and stator are also longer, then it should have higher torque, all other conditions the same. (the same should also be true if it was larger diameter).

Other than that, I couldn't say anything about it.
 
I bought the D9000M (potted coil version)+Deco M 275A controller and just tested them together yesterday. I paid 640USD, shipping to Canada included and strangely, I did not have to pay any customs fees. The kit came with a complete wire harness for e-motorcycle including voltage display, throttle, switches for reverse & eco mode & a wireless key fob. I had to fight a bit to get the windows software for the controller, but finally got it from the seller on a russian forum.

So far so good, the motor seems to push very hard. 15kW peak power and 9kw continuous seems definetely possible in 20S-72V config with good cooling... I think this motor is a good alternative to QS3000W. It has a temperature sensor and the stator coils are now potted, which should increase reliability and cooling compared to my old D7500 motor that is pushing and holding quite good. The windows software interface that works with the controller is based on QT and is quite nice. An android version is apparently in the work too.

UPDATE 28/01/2020:

After dismantling the motor for a check-up, I saw a major quality issue... Both end mounting flanges are not machined accurately.(There is a gap between flanges diameter and stator flange, they are also not tapered) There is a possible risk of misaligned rotor and stator... I will fix that myself, but this is very disapointing.
 
For BLDC version software:

https://drive.google.com/file/d/19kG2g7ahNc_ug7tmaA2iGrPMrpGhrnDQ/view?usp=sharing

Alex seems to reply quite fast on the russian forum(Just use chrome with automatic translate):

https://electrotransport.ru/ussr/index.php?PHPSESSID=7ldgj87gl9l4pf8s8pr93o4l26&topic=55093.0;all

for induction motor software there is this link as well:

https://endless-sphere.com/forums/viewtopic.php?t=103827&start=50

The quality of this BLDC version 275A phase rated @ 279USD is a very good deal, but of course, the quality might not be as good as other more expensive inverter on the market. I opened the hood to see underneath and I have been quite surprised by how good the design is compared to other cheap chinese controller like kellys... I tested my DECO controller with the D9000 and it can do 100A battery amps continuously at 72V without overheating at all. Lytics Capacitors are rated for 100V, but I don't know for the FETS... It has an STM32F103 MCU & has isolated CAN bus IC, but the software is not open source or documented, so I don't know how to communicate with this drive through the CAN bus...

enjoy
 
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