Excitation system having inner loop voltage regulator with by-pass capability
First Claim
1. An excitation system for a power generation system, comprising:
- an exciter, said exciter generating a field voltage for exciting a rotor of said power generation system;
a first automatic voltage regulator, said first automatic voltage regulator receiving an output voltage of said power generation system as an input; and
a second automatic voltage regulator, said second automatic voltage regulator receiving said field voltage as a first input;
wherein an output of said first automatic voltage regulator is provided as a second input to said second automatic voltage regulator, wherein said first automatic voltage regulator is in selective electrical communication with said exciter through a first line conductor having first separable contacts such that an output of said first automatic voltage regulator may be selectively provided as an input to said exciter, and wherein said second automatic voltage regulator is in selective electrical communication with said exciter through a second line conductor having second separable contacts such that an output of said second automatic voltage regulator may be selectively provided as an input to said exciter.
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Accused Products
Abstract
An excitation system that includes an exciter for generating a field voltage for a rotor, a first automatic voltage regulator and a second automatic voltage regulator. The first regulator receives an output voltage of the power generation system as an input, and the second regulator receives the field voltage as an input. An output of the first regulator is provided as a second input to the second regulator. The first regulator is in selective electrical communication with the exciter through a first line conductor having first separable contacts such that an output of the first regulator may be selectively provided as an input to the exciter. The second regulator is in selective electrical communication with the exciter through a second line conductor having second separable contacts such that an output of the second regulator may be selectively provided as an input to the exciter.
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Citations
7 Claims
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1. An excitation system for a power generation system, comprising:
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an exciter, said exciter generating a field voltage for exciting a rotor of said power generation system; a first automatic voltage regulator, said first automatic voltage regulator receiving an output voltage of said power generation system as an input; and a second automatic voltage regulator, said second automatic voltage regulator receiving said field voltage as a first input; wherein an output of said first automatic voltage regulator is provided as a second input to said second automatic voltage regulator, wherein said first automatic voltage regulator is in selective electrical communication with said exciter through a first line conductor having first separable contacts such that an output of said first automatic voltage regulator may be selectively provided as an input to said exciter, and wherein said second automatic voltage regulator is in selective electrical communication with said exciter through a second line conductor having second separable contacts such that an output of said second automatic voltage regulator may be selectively provided as an input to said exciter. - View Dependent Claims (2, 3, 4)
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5. A method of generating a field voltage for exciting a rotor of a power generation system, comprising:
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generating a first voltage regulated signal using an output voltage of said power generation system and a reference voltage; generating a second voltage regulated signal using said first voltage regulated signal and said field voltage; and generating said field voltage by selectively using either said first voltage regulated signal or said second voltage regulated signal. - View Dependent Claims (6, 7)
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Specification