Control method and device for start-stop lifting load of two-to-one gas-turbine combined cycle unit
A technology of combined cycle unit and load control, which is applied in the direction of steam engine device, machine/engine, combined combustion mitigation, etc., and can solve problems such as too many operations by operators, reduced unit startup and shutdown efficiency, and potential safety hazards of the unit
Active Publication Date: 2022-01-21
NORTH CHINA ELECTRICAL POWER RES INST +1
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Problems solved by technology
[0021] During the load change process of the unit, the process conditions and load settings are all done manually. Too many conditions need to be confirmed, which leads to more operations by the operators, which reduces the efficiency of unit startup and shutdown. At the same time, it is easy to cause operational errors during this period. There are certain hidden dangers to the safety of the unit
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[0044] In order to make the objects, technical solutions, and advantages of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the schematic embodiment of the present invention will be described herein for explanation of the invention, but is not limited to the present invention.
[0045]Load control is the ultimate goal of implementing the unit-level APS, ensuring that the AGC function is invested as soon as possible. The process of load control mainly contains from the initial matte of the unit to exit temperature to the unit to have no time-off load load points. This control link is difficult to achieve automatic implementation of each condition of the system. At the beginning of the grid, the unit cannot lose its load, the impact of many characteristics of the unit, requires a variety of judgments.
[0046] According to the existing APS design, the actual effect, the autom...
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The present invention provides a method and device for controlling start-stop and load reduction of a two-to-one gas turbine combined cycle unit. The first gas turbine and the second gas turbine; according to the gas turbine start-stop condition satisfaction signal, obtain the gas turbine lifting load condition satisfaction signal; according to the gas turbine manual operation station automatic state commissioning and withdrawal condition satisfaction signal Signal: According to the gas turbine lifting and lowering condition satisfaction signal and the gas turbine manual operation station automatic state switch-on and withdrawal condition satisfaction signal, the gas turbine is controlled to lift and lower the load during the process of starting and stopping. The invention can realize the lifting and lowering load control during the start-stop process of the combined cycle unit of two tractors and one combustion engine, and has high efficiency and high accuracy.
Description
Technical field [0001] The present invention relates to the start and stop control of the teaculator combined cycle unit, and in particular, to a lifting of lifting load control method and apparatus for the start and stop process of a teaculator combined cycle unit. Background technique [0002] As the load growth and the size of the grid, the new situation of the interconnection of the special high voltage grid and the large-scale power grid is more strict, which is more strict to the peak ability of gas unit, which makes the unit lifting load frequency continuously. In order to adapt to peak requirements, improve the flexibility of the unit, it is necessary to further optimize the automatic adjustment of the heat control during the lifting load of the unit. [0003] Automatic Plant START-UP AND SHUTDOWN SYSTEM, APS) is a system that implements the automation of unit boot and stop process. Its advantage is to improve the correctness, normative, normative, and greatly alleviating...
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IPC IPC(8): F01K23/10F01K13/02F01K13/00F01K11/02F01D15/10
CPCF01K23/10F01K13/00F01K13/02F01K11/02F01D15/10Y02E20/16
Inventor 李卫华尤默高爱国骆意尚勇杨振勇康静秋刘磊
Owner NORTH CHINA ELECTRICAL POWER RES INST