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Old 11-07-2015, 11:36 PM   #2310 (permalink)
thingstodo
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Nov 2 - 24V load test

Drive the DC motor with two deep cycle batteries this time around. Still no controller - none of mine work right now.

Put the AC controller and AC motor into regenerative braking. Take energy from the rotating motor and push it back into the high voltage battery pack.

AGAIN, I need to spend some time setting up some instruments - this was as painful to do as it is to watch (if you choose to watch it) Paul - what measurements can you stream from the AC controller? I won't bother coming up with a way to measure those!

Video link https://youtu.be/pehCWdH49KE

Just like Nov 1, here is a summary of the information that is interesting
Code:
Motor rpm	AC motor current	High Voltage Pack Amps	DC Motor current
3600		5.5			0.3				40
		0.0			0.0				40.5
3457		-30			-0.2				45
		-40			-0.7				50
		-60			-1.6				58
		-70			-2.0				64
2300		-80			-3.0				70
The DC motor pack was down to 22.7V at 64 amps, 22.4V at 70 amps
As the load was removed (AC amps were raised) I measured rpm at each current
Code:
Motor rpm	AC Motor Amps	
2520		-70
2750		-60
3000		-50
3100		-40
3550		-30
3800		-20
3950		-7.6
4000		-5.7
4060		0.0
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Astro (11-18-2015), MPaulHolmes (11-07-2015)