Solar thermal power generation facility and method of starting up same
First Claim
1. A solar thermal power generation facility comprising:
- a compressor which compresses a working medium, thereby producing a compressed medium;
a heat receiver which receives sunlight, thereby heating the compressed medium;
a turbine in which a turbine rotor is rotated by the compressed medium heated in the heat receiver;
a power generator which generales electricity by rotation of the turbine rotor;
a start-up device which rotates the turbine rotor at a time of start-up;
bypass means for making at least a portion of the compressed medium from the compressor bypass the turbine or the heat receiver; and
a control device which controls rotational torque of the turbine rotor by making the compressed medium bypass the turbine or the heat receiver by the bypass means before a rotor rotational speed reaches a rated rotational speed in a speeding-up process of the rotor rotational speed by the start-up device and adjusting a flow rate of the compressed medium which is made to bypass the turbine or the heat receiver,wherein the control device makes the compressed medium not bypass the turbine or the heat receiver by the bypass means before the rotor rotational speed reaches a predetermined rotor rotational speed that is lower than the rated rotational speed in the speeding-up process, and makes the compressed medium bypass the turbine or the heat receiver after the rotor rotational speed reaches the predetermined rotor rotational speed, andwherein the control device instantaneously reduces the flow rate of the compressed medium which is made to bypass the turbine or the heat receiver by the bypass means, at a time of incorporation in which the power generator is connected to an electric power system after the rotor rotational speed reaches the rated rotational speed.
1 Assignment
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Accused Products
Abstract
A solar thermal power generation facility is provided with turbine bypass piping (74) which makes some of compressed air from a compressor (10) bypass a turbine (20), a turbine bypass valve (75) which adjusts the flow rate of the compressed air flowing through the turbine bypass piping (74), and a control device (80) which controls the rotational torque of a turbine rotor (21) by opening the turbine bypass valve (75) before a rotor rotational speed reaches a rated rotational speed in a speeding-up process of the rotor rotational speed by a start-up device (60) and adjusting the flow rate of the compressed air that is made to bypass, by the turbine bypass valve (75). The control device (80) instantaneously fully closes the turbine bypass valve (75) at the time of incorporation in which a power generator (50) is connected to an electric power system (S).
6 Citations
13 Claims
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1. A solar thermal power generation facility comprising:
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a compressor which compresses a working medium, thereby producing a compressed medium; a heat receiver which receives sunlight, thereby heating the compressed medium; a turbine in which a turbine rotor is rotated by the compressed medium heated in the heat receiver; a power generator which generales electricity by rotation of the turbine rotor; a start-up device which rotates the turbine rotor at a time of start-up; bypass means for making at least a portion of the compressed medium from the compressor bypass the turbine or the heat receiver; and a control device which controls rotational torque of the turbine rotor by making the compressed medium bypass the turbine or the heat receiver by the bypass means before a rotor rotational speed reaches a rated rotational speed in a speeding-up process of the rotor rotational speed by the start-up device and adjusting a flow rate of the compressed medium which is made to bypass the turbine or the heat receiver, wherein the control device makes the compressed medium not bypass the turbine or the heat receiver by the bypass means before the rotor rotational speed reaches a predetermined rotor rotational speed that is lower than the rated rotational speed in the speeding-up process, and makes the compressed medium bypass the turbine or the heat receiver after the rotor rotational speed reaches the predetermined rotor rotational speed, and wherein the control device instantaneously reduces the flow rate of the compressed medium which is made to bypass the turbine or the heat receiver by the bypass means, at a time of incorporation in which the power generator is connected to an electric power system after the rotor rotational speed reaches the rated rotational speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of starting up a solar thermal power generation facility that includes a compressor which compresses a working medium, thereby producing a compressed medium, a heat receiver which receives sunlight, thereby heating the compressed medium, a turbine in which a turbine rotor is rotated by the compressed medium heated in the heat receiver, a power generator which generates electricity by rotation of the turbine rotor, and a start-up device which rotates the turbine rotor at a time of start-up, the method comprising:
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a speeding-up process of speeding up a rotational speed of the turbine rotor in the start-up device; an incorporation procedure control process of controlling rotational torque of the turbine rotor until a time of incorporation in which the power generator is connected to an electric power system, by making at least a portion of the compressed medium from the compressor bypass the turbine or the heat receiver before the rotational speed of the turbine rotor reaches a rated rotational speed in the speeding-up process and adjusting a flow rate of the compressed medium which is made to bypass the turbine or the heat receiver; and a process of making the compressed medium not bypass the turbine or the heat receiver before the rotor rotational speed reaches a predetermined rotor rotational speed that is lower than the rated rotational speed in the speeding-up process, wherein the incorporation procedure control process is carried out after the rotor rotational speed reaches the predetermined rotor rotational speed in the speeding-up process, and wherein in the incorporation procedure control process, the flow rate of the compressed medium which is made to bypass the turbine or the heat receiver is instantaneously reduced at the time of the incorporation. - View Dependent Claims (13)
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Specification