MotorXP-PM - Performance analysis of a Tesla Model 3 electric motor (part 1) - Magnetostatic FEA

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This video is a guide how to use the magnetostatic analysis of the MotorXP-PM software on the example of a Tesla Model 3 IPM electric motor.
motorxp.com/
More videos are available on
• MotorXP-PM
MotorXP-PM is available as a MATLAB application (MotorXP-PM MATLAB version) and as a standalone program (MotorXP-PM Standalone) working without MATLAB.
You can also download the Tesla Model 3 electric motor project file from our website and run all the analysis yourself - motorxp.com/downloads/
Please also read our white paper bit.ly/mxp_analysis_TeslaModel3

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11 июл 2020

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Комментарии : 106

@gz7046 2 года назад

@Markus: Halbach array only exists for surface mount motors.. the segmentation is to reduce the magnet eddy current loss.

@faourkh1819 9 месяцев назад

do you have the tesla_model3_dxf file?

@gz7046 9 месяцев назад

motorxp user gets the geometry file in mxp format. @@faourkh1819

@Pedrodemio 3 года назад

Really nice video Vladmir What is the reason of such a low copper fill? Does the real motor have that much free space for more copper or it's just the number that makes the phase resistance match, and in the real motor it's actually filled quite a lot due to insulation or anything else? Or it's functions of a cost optimization, that mount of copper is enough for the performance metrics they wanted and reduces weight and cost? Thanks

@motorxp 3 года назад

Yes, the real fill factor of the motor is close to that value ~30%. I think it is some limitation of the winding tool.

@garyteano3026 3 года назад

This is a great video!

@motorxp 3 года назад

Thank you!

@mohamedibrahim101 4 года назад

Great Vladimir

@motorxp 4 года назад

Thank you!

@alifalih3423 3 года назад

great video . can you help me to upload video about three phase induction motor since I want to design squirrel cage three phase induction motor with skewed rotor with angle . because i am master degree and this program can work this issue.

@AntonChromjak 3 года назад

It would be nice to show magnetic flux path at maximum torque to see how saturated is iron. Also middle part of rotor is shifted. Is it to improve cogging torque? I was also wondering if it is possible that middle part of rottor has no magnets to increase reluctance torque for better field weakening or better, totally different pattern. Is there way to check it or does someone torn it apart? thanks

@motorxp 3 года назад

I can send you the flux path at maximum torque to your email address, please send me an email to 2v.kuptsov@gmail.com. The rotor is made of 3 part to reduce cogging torque, but I do not think that anybody would do the middle part without magnets.

@alessandromarfoli1939 4 года назад

Is the rotor geometry exactly from the drawing of the model 3? The small anisotropic structure of the rotor, consisting in the small dimples on the rotor periphery are created on purpose for magnetic reasons or are they done for manufacturing reasons to simplify the rotor laminations's alignment ?

@motorxp 4 года назад

The rotor dimensions are taken from the lamination sheet after rotor stack assembly tear-down. We think that small dimples on the rotor are to reduce cogging torque.

@samiaemad8805 2 года назад

@@motorxp can you share the rotor .dxf please ?

@LearnEMachines Год назад

Thank you so much. In the obtained results, the current density of the stator is about 43 A/mm2. Is this current density possible in electric motors? Is it realistic?

@motorxp Год назад

Tesla is using very efficient oil spray cooling, so it allows to achieve that high current densities

@Paracetamolchild 2 года назад

hey, I just wondered if the steel and magnet material choice were educated guesses or the correct materials as used in the real motor ?

@motorxp 2 года назад

These are just guesses

@markusvonscheven 3 года назад

Great software. Can you tell me why everyone thinks a Halbach array is used? And why it doesn't make sense to use one from your point of view?

@faourkh1819 9 месяцев назад

do you still have the tesla_model3_dxf file?

@soumyasaxena9350 4 года назад

Nice video, could you please put video for finding torque speed graph directly.

@motorxp 4 года назад

Sure, in the part 2

@mustafacaner 4 года назад

Great ..

@motorxp 4 года назад

Thanks ..

@usertogo 3 года назад

@3:00 wasn't the magnet found to be configured as halbach array?

@motorxp 3 года назад

No, we bought and disassembled a Tesla Model 3 motor. There is no Halbach array. Halbach array does not make sense for this configuration of magnets.

@srirammech100 4 года назад

Tesla model 3 motor rotor consists of halbach array rite ? (4pcs)

@motorxp 4 года назад

No, we bought and disassembled a Tesla Model 3 motor. There is no Halbach array. Halbach array does not make sense for this configuration of magnets.

@yasinsezgin7940 3 года назад

Did you calculate the dimensions entered while designing? Or are these the standard measurements currently used? How can we find these measurements? Please help me and thx for video.

@motorxp 3 года назад

No, these are the dimensions measured on the real motor

@yasinsezgin7940 3 года назад

@@motorxp how can i find these measurement?

@motorxp 3 года назад

@@yasinsezgin7940 Please contact me at 2v.kuptsov@gmail.com

@yasinsezgin7940 3 года назад

@@motorxp Okey, thanks. I sent an e-mail

@TheMahserbey Год назад

@@yasinsezgin7940 dostum selamlar. Sana motorun .dxf dosyasini gonderdi mi?

@mrriser2312 2 года назад

Hi ! Why when I do the ratio between Output mechanical power and Input electrical power I don't find the same value of Efficiency in Magnetostatic Analysis ? (at 12:40 for exemple)

@motorxp 2 года назад

Hi! Thank you for your question. We found that most stable way to calculate efficiency is: Efficiency = OutputPower/(OutputPower+WindingLoss+IronLoss+MagnetLoss) = 100%*182206/(182206+16555.3+411.4+15.3) = 91.47% This is because the input power value calculated as an average of instantaneous power p_input=ia*va+ib*vb+ic*vc is greatly influenced by time step. Moreover, the input power does not include iron and magnet losses, as they are calculated in a post-processing stage.

@mrriser2312 2 года назад

Thank you very much ! And so it is the same for the Dynamic D-Q and FEA Analysis ?

@motorxp 2 года назад

@@mrriser2312 Yes, the same basically

@mrriser2312 2 года назад

Okay ! Thank for all your answer. Your soft is verry cool, good work.

@motorxp 2 года назад

@@mrriser2312 Thank you! Please let me know if you would like to try a full version

@johncarman738 2 года назад

Can we have the no-load current of the motor with your software ?

@motorxp 2 года назад

Yes, it is technically possible. Please contact me at info@motorxp.com for more details

@deepakpandey3346 3 года назад

I'm not able to run simulation it's saying get pro version which cost 😢 appx 500$ around 40000 for three months is there is student version in which I can simulate my own motor or any other free simulation software. I needed this software.

@motorxp 3 года назад

Sure, we also have a free version (with reduced functionality) called MotorAnalysis: motoranalysis.com/

@deepakpandey3346 3 года назад

@@motorxp I had downloaded it but it didn't import my motor stator and rotor geometry dxf designed by MotorXP Design

@motorxp 3 года назад

@@deepakpandey3346 please send me your file to to 2v.kuptsov@gmail.com, I will take a look

@deepakpandey3346 3 года назад

@@motorxp file sent.

@adrianbaneas4930 3 года назад

where I can find that dxf file od tesla model 3 rotor?

@motorxp 3 года назад

Some files related to Tesla Model 3 electric motor are available on our website (motorxp.com/downloads/) but the entire Tesla Model 3 design data (including DXF) are available only with a one year or perpetual MotorXP-PM license subscription (motorxp.com/buy/)

@aymenbahri7429 3 года назад

why you used 3 parallel paths for the winding ?

@motorxp 3 года назад

Because the original motor we tore down had 3 parallel paths

@guppyonepiecekendal7711 2 года назад

Hello sir, i fell this software very useful. For this software how to simulate generator PM with condition unload and load ? please tell me how to process this simulate. Thank you very much for your reply 🙏🙏

@prabhusundaramoorthy7778 2 года назад

how to download

@prabhusundaramoorthy7778 2 года назад

downloaded

@Stigmaru 2 года назад

How do we have enough information to model any electric motor in this software?

@motorxp 2 года назад

Thanks for your question. Could you please provide more details about what you are trying to do because I did not completely understand your question?

@ashishac7913 3 года назад

Can a similar motor with external rotor can be made?

@motorxp 3 года назад

Thanks for your question. IPM rotor is rarely used as an external rotor. One of the reasons, I think, is reduced saliency ratio - inner rotor allows higher saliency ratios. Nevertheless, you can try to design your own motor with outer rotor using Tesla motor as a prototype and see how it goes. All you will need is to request a free trial license for MotorXP-PM on motorxp.com/downloads/

@zakariakhamees 3 года назад

I keep having trouble opening the program after installing it.

@motorxp 3 года назад

Please send me the screenshot of an error message to 2v.kuptsov@gmail.com

@darthcheng5466 3 года назад

nice simulation! But are you sure the magnet grade is N52? I think 80deg of max operating temperature is too low for EV motor.

@motorxp 3 года назад

We actually do not know the magnet grade. Yes, you are right, it is definitely not N52. Thanks for the comment.

@darthcheng5466 3 года назад

@@motorxpWhat is the angle between the V shape magnet? Do you have a measurement?

@motorxp 3 года назад

@@darthcheng5466 The angle is 138 degrees

@darthcheng5466 3 года назад

@@motorxp thanks!

@darthcheng5466 3 года назад

are you sure the phase resistance is 4.75 mohm? my estimate using AWG20 and 25strands in hand and 100 strands per slot yields not more than 3.5 mom. can you measure the wire size?

@faourkh1819 9 месяцев назад

could you share the tesla_model3_dxf file?

@motorxp 9 месяцев назад

Please contact us at info@motorxp.com

@azizcanbozkurtf1 8 месяцев назад

Hello, ı think there is a mistake . In 12:45 , You compared D-Q analysis with Magnestostactis analysis. But the D-Q results are for 1000 rpm, while the magnetostatic is for 4000 rpm. Is this mistake?

@motorxp 8 месяцев назад

Hello, thanks for the comment. It is assumed that the torque in MTPA region does not depend on speed. The torque starts decreasing once the motor enters field weakening.

@azizcanbozkurtf1 8 месяцев назад

@@motorxp Thank you for answer.As i remeber, MTPA is maksimum torque per amper. It is correct?

@motorxp 8 месяцев назад

@@azizcanbozkurtf1 Thanks for the question. Yes, the are usually two regions in automotive applications: maximum torque per Ampere and constant output power.

@azizcanbozkurtf1 5 месяцев назад

Hello again@@motorxp 😀 We defined 953 Amper. Is it real amper value for tesla model 3? It looks like huge value

@azizcanbozkurtf1 3 месяца назад

@@motorxp Hello, are you here ? I have a question. We defined 953 Amper. Is it real amper value for tesla model 3? It looks like huge value

@gabrieloforti 2 года назад

Is permanent magnet desmagnetization linear?

@motorxp 2 года назад

Yes

@gabrieloforti 2 года назад

@@motorxp It seems that you define the linear model from the 'nominal coercivity' (optional), right? But, there are magnet grades which this is in the non linear part of the curve. More appropriate would be setting with 'residual Inducation' and a calculated 'relative permeability'. This is the case for the N52 grade in this simulation. Do you know what grade is used in Tesla Model 3?

@motorxp 2 года назад

@@gabrieloforti Thanks for your comment. Yes, you are right, there are some magnets for which the knee falls on the second quadrant of BH curve (including N52). We will make the corrections. We don't know which grade is used in Tesla Model 3, we just guessed.

@gabrieloforti 2 года назад

@@motorxp N42UZ-GR, seems like it

@motorxp 2 года назад

@@gabrieloforti Thanks for the information!