Electricity: power supply or regulation systems – For reactive power control – Using impedance
Patent
1979-12-03
1981-06-23
Shoop, William M.
Electricity: power supply or regulation systems
For reactive power control
Using impedance
H02J 318
Patent
active
042753465
ABSTRACT:
In an alternating current electric power system of the type subject to rapid load voltage regulation as a result of variations in reactive load current, reactive load current compensation is provided by fixed capacitors and inductors in parallel with the load. The inductors are in series with static switches which are phase controlled to continuously maintain the net reactive compensating current substantially equal and opposite to the reactive components of load currents. Compensation control determines firing time of thyristor switches in accordance with the magnitude of reactive load current. In one embodiment, a signal representative of the condition of the reactive load current is provided with a positive phase shift correction to compensate for a negative phase shift which is provided by the thyristor switching technique.
REFERENCES:
patent: 3936726 (1976-02-01), Kelley, Jr. et al.
patent: 3936727 (1976-02-01), Kelley, Jr. et al.
patent: 3963978 (1976-06-01), Kelley, Jr. et al.
patent: 3968422 (1976-07-01), Waldmann
patent: 3968432 (1976-07-01), Kelley, Jr.
patent: 4135128 (1979-01-01), Kelley, Jr.
"Operational Amplifiers, Design and Applications," Tobey-Graeme-Huelsman, McGraw-Hill Book Company, 1971.
"Network Analysis and Feedback Amplifier Design", H. W. Bode, Van Nostrand, Princeton, N.J., 1945.
Freedman William
General Electric Company
McMahon John P.
Shoop William M.
Wong Peter S.
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