Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control

[MPaulHolmes]

I don't really understand what T, S, and R are. Do you have any waveforms?

[ale0502]

Hi everyone, I have a quick question, does the controller need to measure the voltage of the battery bank or any other point of the setup?

thanks

[MPaulHolmes]

It doesn't use the battery voltage for anything at this time.

[esali1987]

Ok Yeah ill need to get an ocsilliscope for that part for sure and I saw, Paul, that you have a resolver to encoder board. SWEET!!

Another thing came up that I am curious about. I can only seem to get the board to put out a signal if the pickit3 is hooked up and not with the USB terminal. Is the onboard USB just for programming as a "Program Mode" and need to be disconnected for "Run Mode"? I have got my motor to move when the PICKIT3 is hooked up only.

Thanks

[ale0502]

Originally Posted by MPaulHolmes

It doesn't use the battery voltage for anything at this time.

Thanks Paul!
I think I'm missing something to connect, because when I run the run-pi-test routine nothing happens, the engine does not turn at all.
I have the two current sensors (LEM HASS 300), and an encoder of 512 steps working by the tests I could do.
What can I have wrong? I have a code written by me with which I throw a frequency without any kind of control and the motor turns, so I have all the power stage running.

thanks

[59Morris]

Hope to start testing on an HPEVS motor tomorrow.

https://photos.app.goo.gl/Ub14H7pDYxSPZ9r16

[59Morris]

Originally Posted by 59Morris

Hope to start testing on an HPEVS motor tomorrow.

https://photos.app.goo.gl/Ub14H7pDYxSPZ9r16

It looks like I'm in the same position as the previous two posters. I believe everything is hooked up correctly. Using the "stream" command I have verified the throttle, temperature sensor and encoder are working as expected. When I "run-pi-test2" it does not drop to zero but stays very close to 512. Nothing I have tried so for has made the motor turn. No error messages on startup except the one that says its not really an error. Does anyone have any suggestions as to what I might have missed??
(I'm testing with a 50 volt battery pack)

[Piotrsko]

Some mention you need to calibrate the throttle before it runs.

[thingstodo]

Originally Posted by 59Morris

It looks like I'm in the same position as the previous two posters. I believe everything is hooked up correctly. Using the "stream" command I have verified the throttle, temperature sensor and encoder are working as expected. When I "run-pi-test2" it does not drop to zero but stays very close to 512. Nothing I have tried so for has made the motor turn. No error messages on startup except the one that says its not really an error. Does anyone have any suggestions as to what I might have missed??
(I'm testing with a 50 volt battery pack)

Check out @jackbauer's post here

https://ecomodder.com/forum/showthre...tml#post590417

If the vector output is not being called, there should be no output.

Besides that, a while ago you needed to have your throttle between min-regen and min-throttle (I didn't look up the actual variable names - sorry). Not sure if that is a requirement any more.

I can look tonight and find a config that worked OK for my motor. It won't likely work well for yours, but it should output *SOMETHING*

My bet is on the vector output still commented out. Do you have MPLab X installed so you can compile? If not, perhaps send @MPaulholmes or @Jackbauer a PM. They can send you a new file to load into your controller.

I've never gotten this darned compiler to spit out an actual file without errors .. so I can't help with that.

PS - I'm running a rev 2 board and I think you are all at rev 3 or 4

[59Morris]

Originally Posted by thingstodo

Check out @jackbauer's post here

https://ecomodder.com/forum/showthre...tml#post590417

If the vector output is not being called, there should be no output.

Besides that, a while ago you needed to have your throttle between min-regen and min-throttle (I didn't look up the actual variable names - sorry). Not sure if that is a requirement any more.

I can look tonight and find a config that worked OK for my motor. It won't likely work well for yours, but it should output *SOMETHING*

My bet is on the vector output still commented out. Do you have MPLab X installed so you can compile? If not, perhaps send @MPaulholmes or @Jackbauer a PM. They can send you a new file to load into your controller.

I've never gotten this darned compiler to spit out an actual file without errors .. so I can't help with that.

PS - I'm running a rev 2 board and I think you are all at rev 3 or 4

Thanks thingstodo. I have been in contact with Paul and he sent me a new .hex file that fixed the problem.... after I also fixed a wiring problem of my own. I had crossed up the V and W phase current sensors. Tomorrow I can work on fine tuning the config.