Gas turbine power generation system and its operation control method

A gas turbine and power generation system technology, which is applied to gas turbine devices, turbine/propulsion fuel delivery systems, fuel control of turbine/propulsion devices, etc., can solve problems such as difficulty, low calorie value, and difficulty in gas turbines, and achieves suppression of rotational speed increase, Design and manufacture easy effects

Inactive Publication Date: 2010-03-24
KAWASAKI HEAVY IND LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If such a flow control valve is used, unlike the flow control valve for natural gas, it is difficult to stably control the current reduction in the low flow state required at the time of load cutoff.
Thus, it is difficult to steadily reduce the heat input to the gas turbine and maintain the heat input while load shedding occurs
Moreover, due to the low calorie value of the heat, it is difficult to effectively suppress the overspeed of the gas turbine while preventing flameout.

Method used

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  • Gas turbine power generation system and its operation control method
  • Gas turbine power generation system and its operation control method
  • Gas turbine power generation system and its operation control method

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Embodiment Construction

[0041] Embodiments of the gas turbine power generation system and the operation control method of the gas turbine according to the present invention will be described below with reference to the above-mentioned drawings.

[0042] figure 1 It is a schematic system diagram of a gas turbine power generation system 1 including an embodiment of the gas turbine power generation system of the present invention. The fuel of the gas turbine 2 used in the gas turbine power generation system 1 (hereinafter also referred to as "power generation system 1") is low-calorie by-product gas (low-calorie gas) BGF generated by the blast furnace S as a gas generation source. Further, it includes a combustor 3 , a fuel gas supply pipe 4 for supplying fuel gas to the combustor 3 , a fuel gas compressor 5 for compressing the fuel gas, an air compressor 6 for supplying compressed air to the combustor 3 , and a generator 7 . The fuel gas supply pipe 4 is connected from the gas generation source S to ...

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Abstract

A gas turbine power generation system, which can suppress an increase in the number of revolutions of a gas turbine easily upon occurrence of a sudden drop in gas turbine load, comprises a gas turbine(2), a generator (7) connected, in order to be able to transmit a rotating force, to the gas turbine (2), a fuel gas compressor (5) for compressing fuel gas being supplied to the gas turbine (2), a motor (9) for driving the fuel gas compressor (5), a first driving feeder line (16) for supplying power from the generator (7) to the motor (9), and a system controller for controlling the operation ofthe gas turbine (2).

Description

technical field [0001] The invention relates to a gas turbine power generation system and an operation control method thereof. More specifically, it relates to a gas turbine power generation system provided with a thermal gas compressor for compressing thermal gas supplied to the gas turbine, and in the gas turbine power generation system, for example, when the load suddenly decreases such as load cutoff, it relates to a gas turbine power generation system for preventing the gas turbine from exceeding the specified A method for controlling the operation of a gas turbine power generation system at a rotational speed. Background technique [0002] Gas turbines generate electricity more efficiently than thermal boilers and emit less carbon dioxide, so their use as environmentally friendly power generation equipment is increasing. On the other hand, in the iron and steel industry as a basic industry, for example, low-calorie by-product gases such as blast furnace gas (referred ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/00F01D15/10F01D19/00F01D21/02F02C9/28F02C9/46H02P9/04
Inventor 佐香正明大田秀明长谷川善幸谏山靖生
Owner KAWASAKI HEAVY IND LTD
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