Understanding of just what an alternator or generator has been smeared over the years yet ultimately does not matter. What matters is that magnet generated fields resulting in generator outputs (generator IS a valid overall general term for a charge source created by a rotating mechanical method whereas an alternator is a more "modern" term for a generator which does not utilize brushes
...yeah, "modern" meaning in the last 60 or 70 years) are most readily regulated by shunt regulators. Shunt regulators provide loads to the generator (alternator) in parallel with the outputs whereas series regulators (like most automobile alternator regulators which have currernt forced fields as opposed to current
fields forced by magnets) are most easily controlled by switching the field current
out or in, fast or slow. Obviously magnet controlled fields cannot be controlled by switching anything other than the speed of the rotor else the load.
Most small wind generators as well as lighting
coils of outboard
motors have their fields totally controlled by the rpm
of the rotor as well as the magnet field strength, that is why I "lumped" them together. Many motorcycles have magnet alternators as well and, therefore, must be controlled by shunt loads as well.
Regardless, the POINT that I have been attempting to make is that there is no rational reason to promote a lack of utilizing a regulator
for ANY charge source in view that regulators exist that will ALWAYS (in today's technology) be superior to what one can do manually. Touting a manually human control of regulation is what I am referring to as "retro-tech" which denys the benefits of what exists today. Anti-technology is far more decicive in opposing the use thereof, even manual methods period.