My question, will I get regen braking with my circuit as a I drew it?
I have a Jack & Heintz G-29-88 shunt motor mounted to a 1995 geo metro
transmission. Have driven it a few times 9 miles with a 48V contactor
controller, on and off. Anyways, I have ordered a controller for this motor.
Should have it in 3 weeks from now. It will be powered by 72V battery pack.
Also, there will be a 24V separate battery pack for the field to be powered
100% of the time. Negative on 24V battery goes to negative on armature on
motor and positive will be attached to field positive on shunt motor. There
are four terminals, two for armature, two for field, but one will not be
used on the field.
I have envisioned a few ways to get regen with this motor generator. I
happen to have a few 650 amp 400V rectifier diodes to allow current to flow
in only one direction and several SW180B contactors. The simplest way to
wire this up is for downshifting the transmission to rev motor and thus slow
vehicle down. I know this might work, but the problem I am having in
justifying the circuit I drew as accurate. See on the circuit I have a
negative from battery going into the controller, then a negative from
controller going into the motor. My problem when controller is not engaged
battery negative will not be connected to motor. However, in my circuit the
positive of battery will still be connected and current can only flow one
way back into the battery. So will regenerative braking take place when I
downshift and rev shunt motor?
I suppose I could hook it up and see, but rather ask first.
Here are some links to the circuit I drew.
http://www.host-images.com/show.php/3645_shuntregencircuit.jpg
http://img207.imageshack.us/img207/5061/shuntregencircuitbj1.jpg
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I have a Jack & Heintz G-29-88 shunt motor mounted to a 1995 geo metro
transmission. Have driven it a few times 9 miles with a 48V contactor
controller, on and off. Anyways, I have ordered a controller for this motor.
Should have it in 3 weeks from now. It will be powered by 72V battery pack.
Also, there will be a 24V separate battery pack for the field to be powered
100% of the time. Negative on 24V battery goes to negative on armature on
motor and positive will be attached to field positive on shunt motor. There
are four terminals, two for armature, two for field, but one will not be
used on the field.
I have envisioned a few ways to get regen with this motor generator. I
happen to have a few 650 amp 400V rectifier diodes to allow current to flow
in only one direction and several SW180B contactors. The simplest way to
wire this up is for downshifting the transmission to rev motor and thus slow
vehicle down. I know this might work, but the problem I am having in
justifying the circuit I drew as accurate. See on the circuit I have a
negative from battery going into the controller, then a negative from
controller going into the motor. My problem when controller is not engaged
battery negative will not be connected to motor. However, in my circuit the
positive of battery will still be connected and current can only flow one
way back into the battery. So will regenerative braking take place when I
downshift and rev shunt motor?
I suppose I could hook it up and see, but rather ask first.
Here are some links to the circuit I drew.
http://www.host-images.com/show.php/3645_shuntregencircuit.jpg
http://img207.imageshack.us/img207/5061/shuntregencircuitbj1.jpg
--
View this message in context: http://www.nabble.com/Shunt-motor-regen-braking-with-alltrax-7245.-tf4343196s25542.html#a12372789
Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com.
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev