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Search took 0.09 seconds. Search: Posts Made By: motorulf
Forum: Fossil Fuel Free 02-27-2017, 11:55 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
I used one of the AC control/driver boards to...

I used one of the AC control/driver boards to make a 240v/120v split phase inverter, so that there are 2 120v supplies, and a neutral. The 2 120v supplies are 180 degrees out of phase, so you can...
Forum: Fossil Fuel Free 01-21-2017, 04:18 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
oh yes! precharge resistor/capacitance/time. ...

oh yes! precharge resistor/capacitance/time. You need to figure out the RC time constant for your setup. Like this:

Let's say you are using 1000uF of bus capacitance, and you are using a...
Forum: Fossil Fuel Free 01-21-2017, 03:27 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
Looking at the code, I think the current command...

Looking at the code, I think the current command of Id = 300 (normalized value) and Iq = 300 might not be enough to get your motor turning. I used that value on my smaller motor and it worked OK,...
Forum: Fossil Fuel Free 01-20-2017, 05:13 PM
Replies: 3,480
Views: 915,174
Posted By ale0502
Hi, what is promised is due, so here is an image...

Hi, what is promised is due, so here is an image of my staff.

http://img.overpic.net/images/x/3/q/xx3q1x9ba9dcgklkahu2c.jpg

Back to the equation of ki, my brushless motor has 0,6ohm of...
Forum: Fossil Fuel Free 01-05-2017, 02:59 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
Oh you don't need to graph it. I wasn't...

Oh you don't need to graph it. I wasn't thinking. Just notice that it REALLY SLOWLY approaches zero. Zero means Id and Iq have officially converged to their commanded values. Your PI values are...
Forum: Fossil Fuel Free 01-05-2017, 02:40 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
It's controlling torque rather than rpm, and...

It's controlling torque rather than rpm, and since the current range is like -400amp to 400amp max using a lem Hass 200-s, it can only really hold at like +/- 4 amps (1%). Can you hold it still...
Forum: Fossil Fuel Free 01-05-2017, 02:30 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
The kp and Ki are actually tracking pretty well,...

The kp and Ki are actually tracking pretty well, but are probably too small. While at zero throttle, I would try
run-pi-test2
(while using those 3333, 50)
and graph the result to see how fast...
Forum: Fossil Fuel Free 01-05-2017, 12:43 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
OK the Kp 41,000 is way too big. It is probably...

OK the Kp 41,000 is way too big. It is probably resulting in some overflows in software. Are you sure that was the result of a PI test? It is supposed to stop at like 17,000 or something like...
Forum: Fossil Fuel Free 01-04-2017, 02:21 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
OK good. I was worried that there was a short on...

OK good. I was worried that there was a short on one of the IGBTs.

Are all 3 current sensors oriented just like current sensor #3? (so that the 4 prong plug is on the side closest to the IGBT) ...
Forum: Fossil Fuel Free 01-04-2017, 01:08 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
The software is calling PWM1H the leftmost...

The software is calling PWM1H the leftmost twisted pair of wires, then PWM1L, then PWM2H, then PWM2L, then PWM3H, then PWM3L. All left to right. Do you also have the current sensors going to the...
Forum: Fossil Fuel Free 01-04-2017, 10:38 AM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
OK first disconnect the battery power to the...

OK first disconnect the battery power to the motor/inverter. Let's get the throttle configured right first. Wait, have you had a capacitor connected with the IGBTs during all of this? It's really...
Forum: Fossil Fuel Free 01-03-2017, 07:40 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
The default is a hall effect throttle, so the...

The default is a hall effect throttle, so the soldered resistors are set up for that. It won't work for a resistive throttle without an addition of a resistor, and changing another resistor. That's...
Forum: Fossil Fuel Free 01-03-2017, 03:15 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
It's basically a turn on or turn off sort of...

It's basically a turn on or turn off sort of thing. So, you would do:
stream-raw-throttle 1
stream-????? 1
stream-?????? 1
...
...

to turn on as many things as you want to stream. To turn...
Forum: Fossil Fuel Free 01-03-2017, 02:18 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
oh good that shouldn't damage anything important....

oh good that shouldn't damage anything important. You can just add a jumper across the fuse. Are you sure the pinout for your current sensor cable is right? Orient the board so that the 3 current...
Forum: Fossil Fuel Free 01-01-2017, 08:04 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
Looks good so far motorulf. Just a couple fixes....

Looks good so far motorulf. Just a couple fixes. In C, = is assignment, and == is a test. For example you would do:

if (x == 1) {
Wow! I can't believe it! x is one!
}

y = 1;

// y now...
Forum: Fossil Fuel Free 12-31-2016, 05:43 PM
Replies: 3,480
Views: 915,174
Posted By thingstodo
I would add a couple of resistors on the board,...

I would add a couple of resistors on the board, and one in series with the switch, to limit the max current into the micro.

Perhaps a 22K from Vcc (whether that is 5V or 3.3V) or your top trace on...
Forum: Fossil Fuel Free 12-26-2016, 12:01 PM
Replies: 3,480
Views: 915,174
Posted By MPaulHolmes
Hej Hej! I haven't done the software for...

Hej Hej!


I haven't done the software for it yet. Well, I have, but it was for a different context, so it would be relatively easy to cut and paste the code. Although, there's no support right...
Showing results 1 to 17 of 17

 
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