Load adjustment control method and device for steam turbine power generation system
A technology of load control and power generation load, which is applied to steam engine devices, machines/engines, mechanical equipment, etc. It can solve problems such as large throttling loss, over-regulation, and slow response speed of generator sets to variable loads, and achieve the effect of improving the response rate
Active Publication Date: 2021-06-04
CHINA SHENHUA ENERGY CO LTD +3
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Problems solved by technology
However, under this method, the throttling loss is relatively large, and over-regulation is prone to occur.
And when the load is adjusted by adjusting the opening of the high-adjustment door, the response speed of the generator set to variable load is relatively slow. For the case of high requirements for AGC variable load, the above control method cannot meet the requirements
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[0028] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.
[0029] figure 1 It is an example of a steam turbine power generation system to which the load regulation control method according to an embodiment of the present invention is applicable. Such as figure 1 As shown, the steam turbine power generation system includes a boiler 10 , a steam turbine 20 , a generator 70 , a condenser 30 , low pressure heaters LH1 - LH4 , a deaerator 50 , a feed water pump 60 , and a high pressure heater 80 . The steam generated by the boiler 10 is supplied to the steam turbine 20, and the heat energy of the steam drives the steam turbine 20 to perform ...
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The invention relates to the field of thermal power generation, in particular to a load regulation control method and device for a steam turbine power generation system. The load adjustment control method includes: receiving a power generation load command; when the power generation load rises, reducing the condensate flow at the condenser outlet, increasing the opening of the high-profile door of the steam turbine, and making the boiler The main steam pressure of the main steam increases the first pressure; and when the power generation load drops, the condensed water flow at the outlet of the condenser is increased, the opening of the high-profile door of the steam turbine is reduced, and the main steam of the boiler is The vapor pressure is reduced by a second pressure. The method and device can quickly respond to changes in power generation loads, so as to meet power generation requirements when power grids change loads.
Description
technical field [0001] The invention relates to the field of thermal power generation, in particular to a load regulation control method and device for a steam turbine power generation system. Background technique [0002] The steam turbine power generation system is a power generation system commonly used in thermal power generation, which includes steam turbines, boilers, condensers, etc. In order to meet the requirements of the AGC variable load of the power grid, the CBF coordinated control method of controlling the main steam pressure by the boiler and controlling the load by the steam turbine is generally adopted. . However, under this method, the throttling loss is relatively large, and over-regulation is prone to occur. And when the load is adjusted by adjusting the opening of the high-adjustment door, the response speed of the generator set to variable load is relatively slow. For the case of high requirements for AGC variable load, the above-mentioned control meth...
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IPC IPC(8): F01K13/02F01D17/10
CPCF01D17/10F01K13/02
Inventor 胡晓花张秋生姚峻沈建峰归一数祝建飞张金营王富强
Owner CHINA SHENHUA ENERGY CO LTD