Doubly-fed induction generator system for a gas turbine
AssigneeGeneral Electric Company
InventorsHua Zhang, Fabien Thibault Codron, Gunnar Leif Siden, Frank Douglas Beadie
Life of this patent
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Abstract
The present application provides a doubly-fed induction generator system for a multi-shaft gas turbine engine. The doubly-fed induction generator system may include a first doubly-fed induction generator in communication with a first shaft of the multi-shaft gas turbine engine, a first rotor of the first doubly-fed induction generator in communication with a converter via a first rotor bus, and a first breaker on the first rotor bus. The first doubly-fed induction generator acts as a generator or a motor depending in part upon the position of the first breaker.
Claims20
A doubly-fed induction generator system for a multi-shaft gas turbine engine, comprising:
- a first doubly-fed induction generator in communication with a first shaft of the multi-shaft gas turbine engine;
- a first rotor of the first doubly-fed induction generator in communication with a converter via a first rotor bus;
- and
- a first breaker on the first rotor bus;
- wherein the first doubly-fed induction generator acts as a generator or a motor depending in part upon the position of the first breaker.
A method of operating a multi-shaft gas turbine engine, comprising:
- positioning a doubly-fed induction generator on a first shaft of the multi-shaft gas turbine engine;
- operating the doubly-fed induction generator as a motor during start-up of the multi-shaft gas turbine engine;
- and
- operating the doubly-fed induction generator as a generator during full load operations of the multi-shaft gas turbine engine.
A doubly-fed induction generator system for a multi-shaft gas turbine engine, comprising:
- a first doubly-fed induction generator in communication with a first shaft of the multi-shaft gas turbine engine;
- a first rotor of the first doubly-fed induction generator in communication with a converter via a first rotor bus;
- and
- a second generator in communication with a second shaft of the multi-shaft gas turbine engine.
Dependencies are inferred from the claim text.