Electricity: power supply or regulation systems – Remote sensing
Patent
1974-12-23
1976-10-19
Pellinen, A. D.
Electricity: power supply or regulation systems
Remote sensing
323102, 323119, H02J 318
Patent
active
039873609
ABSTRACT:
Apparatus for significantly reducing the drift and increasing the accuracy of a firing phase angle determination device for the control circuit of a static VAR generator. A phase locked loop is utilized for providing accurate phase information and rapid capture. The phase locked loop utilizes a ripple cancelling digital phase detector and a dual mode amplifier/filter.
REFERENCES:
patent: 3199037 (1965-08-01), Graves
Brennen Michael B.
Thompson Francis T.
Moran M. J.
Pellinen A. D.
Westinghouse Electric Corporation
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