Reactive power compensation system

Details Reactive power compensation system Reactive power compensation system

1988-03-25

1989-08-15

Salce, Patrick R.

Electricity: power supply or regulation systems

For reactive power control

Using impedance

373104, G05F 170

Patent

active

048578215

ABSTRACT:
The reactive power compensation system used for preventing the power voltage fluctuation includes an inverter which operates in response to a high-frequency PWM signal based on the reactive power determined from the voltage and current at the receiving point to compensate a sharp varying component of reactive power created by the load, and a capacitor which is connected or disconnected with the power system through a semiconductor switch on the basis of comparison of the load reactive power with preset values so as to supply the leading reactive power back to the power system.

REFERENCES:
patent: 3936727 (1976-02-01), Kelley, Jr. et al.
patent: 4752726 (1988-06-01), Aoyama
Hirofumi Akagi et al., "Control Strategy of Active Power Filters Using Multiple Voltage-Source PWM Converters", IEEE Transaction on Industry Applications, vol. 1A-22, No. 3, May/Jun. 1986, pp. 460-465.
Akagi et al., "Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components", IEEE Transactions on Industry Applications, IA-20, (1984), May-Jun., No. 3, Part 1, pp. 625-630.
Cox et al., "A New Static VAR Compensator for an Arc Furnace", IEEE Transactions on Power Systems, PWRS-1, (1986), Aug., No. 3, pp. 110-120.
Mitsubishi Electric Corp. Technical Report, "Static Reactive Power Compensation System", Dec. 1984, pp. 38-41.

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