Reactive power compensation apparatus

Details Reactive power compensation apparatus Reactive power compensation apparatus

1990-12-31

1992-03-24

Wong, Peter S.

Electricity: power supply or regulation systems

For reactive power control

Using impedance

H02J 318, G05F 170

Patent

active

050991906

ABSTRACT:
A reactive power compensation apparatus includes a power system with a given voltage, a controller for controlling the voltage of the power system to a predetermined target voltage, using a predetermined transfer function, a reactive element, a switch for connecting the reactive element to the power system, a detector for detecting an impedance of the power system in accordance with a change in the voltage of the power system, the voltage change being defined by a difference between the voltage of the power system obtained when the reactive element is connected to the power system and the voltage of the power system obtained when the reactive element is disconnected from the power system, and a circuit for changing the transfer function of the controller in accordance with the impedance detected by the detector.

REFERENCES:
patent: 4472674 (1984-09-01), Yano et al.
patent: 4496899 (1985-01-01), Lippitt et al.
patent: 4546303 (1985-10-01), Maeda et al.
patent: 4602206 (1986-07-01), Walker
patent: 4891570 (1990-01-01), Nakamura et al.
patent: 4897593 (1990-01-01), Konishi et al.

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