What is your name, I get uneasy talking to ghosts !!
I use the ECM quite often.
Th ECM motor is not best if you separate the windings, it is best to analyze your needs, distance of the mill to the load, your wind regime, the blades you are using, THEN and ONLY THEN a decision is made to determine what is best, winding wise.
I have been using the ECM and sending the power several hundred feet with low losses via high voltage with transformers at the end to convert as needed, attaining this way a broad operating range.
The 1/2 HP ECM motor is capable of producing around 240 watts.
The 1 HP around 440 -480 watts
Your questions need to be organized for you to attain a clear path to produce a unit that is useful.
It is NOT necessary to place a set of rectifiers to each winding, one may obtain the same results with just a 3 phase set.
I do not comment anything about the garbage motor because the procedure should be done analyzing what you got and what the air "environment" is, as quoted at the beginning of this message.
As reported in this group, some of those experiments were done with Chisel & Hammer, may work, but not at the best efficiency or the best arrangement for optimum results and long life.
Indeed, the wind mill may produce the power, though one needs to look for a logical and mature procedure to attain the best arrangement for a successful long lived wind mill.
Nando