Abstract
The flywheel generator in use as a power source for fusion experimental device is enough large to generate the electric power to make it suitable for application in wide range of industries.
The authors propose an AC-excited variable speed flywheel generator for short-period load leveling device and utility line power stabilizing device such as power factor, unbalanced load, flicker etc. In this paper, the validity of the flywheel for this purpose are described. And the new control method which applies the voltage control of Vector Control scheme are proposed.
Compared to a conventional generator withflywheel, the following advantages are offered: (1) The necessary converter capacity is small; (2) It is possible to accumulate and yield electricity rapidly with large power; (3) Reactive power can be supplied through phase-modified operation of generater, making it possible to reduce in capacity of static power factor compensator.
The experiments using the M-G set simulator with 4kW wound type induction motor with flywheel are carried out to demonstrate the control ability. It is reported that the system proposed here controls the active and reactive power with so fast step response of less than 5ms that the power-input attains the perfect leveling of even in unbalanced loads.
