Quote:
Originally Posted by adamj12b
Its not simple to do for multiple reasons. Number 1 reason being series wound motors cannot simply be used for regenerative brakes. Number 2 would be that it requires a totally different power stage that has 4x the amount of high current switching devices. It is not a cost effective controller to produce to be used in such few applications.
-Adam
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Otmar's Regen Article
It isn't complex but controlling it would be. Some curtis controllers overseas had it built in, Lee Hart did a Curtis 1221 to 1221R regen curtis conversion once, it wasn't overly complex; in an OTR vehicle it burn't out over about a year. Also you need to neutral time your brushes and have interpoles.
I am thinking the Curtis method Lee Hart found would likely be just fine if you OVERSIZED the heck out of the controller with modern parts and downrated it to maybe 25%.
I do think series regen is worth looking into even though it doesn't work at low speeds and isn't real controllable (hey I just want to stop, don't care how fast)