Plant control apparatus, plant control method and power generation plant

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11391184
APP PUB NO 20210095579A1
SERIAL NO

17001756

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In one embodiment, a plant control apparatus includes a first stop controller configured to, when stopping a plant, stop a steam turbine to start to drop rotating speed of a second shaft of the steam turbine from rated speed, and start to drop rotating speed of a first shaft of a gas turbine from the rated speed while continuing combustion of a combustor after the stop of the steam turbine. The apparatus further includes a second stop controller configured to shut off fuel of the combustor to stop the gas turbine when the rotating speed of the first shaft drops to first speed. The second stop controller stops the gas turbine such that the rotating speed of the first shaft catches up with the rotating speed of the second shaft at second speed that is equal to or lower than the first speed and a clutch is engaged.

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Patent Owner(s)

Patent OwnerAddress
TOSHIBA PLANT SYSTEMS & SERVICES CORPORATIONTSURUMI-KU YOKOHAMA-SHI KANAGAWA 230-8691
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONSAIWAI-KU KAWASAKI-SHI KANAGAWA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alzuraiqi, Mohammed Ameen Abbas Yokohama, JP 1 1
Chiba, Shinobu Fujimi, JP 2 2
Iwata, Yuta Yokohama, JP 3 5
Kajihara, Mizu Yokohama, JP 2 7
Tobo, Masayuki Kawasaki, JP 21 48

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