Electricity: single generator systems – Automatic control of generator or driving means – With line-drop compensation
Patent
1989-10-03
1992-05-26
Stephan, Steven L.
Electricity: single generator systems
Automatic control of generator or driving means
With line-drop compensation
322 28, 322 59, H02P 900
Patent
active
051171740
ABSTRACT:
An electric power system having line drop compensation includes a controllable electric power source having an output for supplying voltage to a power bus, a local voltage regulator for monitoring the output voltage of the power source and for producing a control signal representative of a desired nominal output voltage of the power source, and a remote voltage regulator for sensing voltage on the power bus at a point of regulation located away from the power source. The remote voltage regulator produces a pulse width modulated signal having a duty cycle representative of the voltage at the point of regulation. A pulse width to trim bias converter receives the pulse width modulated signal and produces the trim signal having a magnitude representative of the duty cycle of the pulse width modulated signal. This trim signal is combined with the control signal of the local voltage regulator to produce a modified control signal for controlling the output voltage of the power source to produce a predetermined voltage at the point of regulation.
REFERENCES:
patent: 3634750 (1972-01-01), Bono
patent: 3652920 (1972-03-01), South et al.
patent: 4446417 (1984-05-01), Fox et al.
patent: 4554501 (1985-11-01), Baker
patent: 4807106 (1989-02-01), Baker et al.
patent: 4839576 (1989-06-01), Kaneyuki et al.
patent: 4841216 (1989-06-01), Okada et al.
Lenart R. P.
Peckman Kristine
Stephan Steven L.
Westinghouse Electric Corp.
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