Steam turbine valve control method, device and system supporting control logic reconfiguration

A technology of control logic and valve control, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of delay in response speed, flexible adjustment of basic control logic and additional logic, poor operability, etc., to reduce equipment costs, Fast processing cycle, easy to use effect

Inactive Publication Date: 2019-12-03
NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the control modules implement fixed basic control logic inside, and the valve control modules of some manufacturers can also implement necessary additional logic, but the above-mentioned basic control logic and additional logic have been fixed after the modules leave the factory, and the power plant operators cannot The basic control logic and additional logic can be flexibly adjusted according to complex site requirements, or they have to be implemented on the upper controller side. The data interaction between the controller and the valve control module brings a certain delay to the response speed of the overall control logic, such as The logic adjustment must be completed on the control module side, and the module needs to be returned to the factory for an upgrade, which often has very poor operability

Method used

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  • Steam turbine valve control method, device and system supporting control logic reconfiguration
  • Steam turbine valve control method, device and system supporting control logic reconfiguration
  • Steam turbine valve control method, device and system supporting control logic reconfiguration

Examples

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Effect test

Embodiment 1

[0049] refer to figure 1 As shown, the present embodiment is a steam turbine valve control method, including:

[0050] Obtain corresponding recompilation control logic data in response to external input having recompilation control logic data;

[0051] Decoding the obtained recompiled control logic data to obtain corresponding executable control logic data;

[0052] Store the executable control logic data obtained by each decoding;

[0053] Select the corresponding executable control logic data according to the external command setting, and update it to the current control logic;

[0054] The steam turbine valve control is performed according to the current control logic.

[0055] In application, the method of this embodiment is executed by the valve control module of the steam turbine to realize the reconfiguration of the online control logic on the module side, thereby improving the response speed of the valve control of the steam turbine.

[0056] The method in this emb...

Embodiment 2

[0060] Based on the same inventive concept as Embodiment 1, this embodiment is a steam turbine valve control device, including:

[0061] The recompilation data acquisition module is used to obtain the corresponding recompilation control logic data in response to external input of recompilation control logic data;

[0062] A control logic decoding module, configured to decode the obtained recompiled control logic data to obtain corresponding executable control logic data;

[0063] The data storage module is used to store the executable control logic data obtained by each decoding;

[0064] The control logic update module is used to select the corresponding executable control logic data according to the external instruction setting, and update it to the current control logic;

[0065] The control logic execution module is used for controlling the steam turbine valve according to the current control logic.

Embodiment 3

[0067] This embodiment is a steam turbine valve control module, refer to Figure 4 As shown, the module includes a control logic update interface, a host control interface, a data storage module and a data processing module, and the data processing module includes a control logic decoding unit, a control logic updating unit and a control logic execution unit;

[0068] The data processing module obtains the externally input recompiled control logic data through the control logic update interface, and then decodes the recompiled control logic data through the control logic decoding unit to obtain the corresponding executable control logic data and store it in the data storage module;

[0069] The data processing module obtains the external control logic setting instruction through the upper control interface, and then selects the corresponding executable control logic data according to the external instruction setting through the control logic updating unit, and updates it to th...

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Abstract

The invention discloses steam turbine valve control method, device and system supporting control logic reconfiguration, and relates to the field of steam turbine valve control. The steam turbine valvecontrol method comprises the steps: in response to the situation that recompiled control logic data are input externally, acquiring corresponding recompiled control logic data; decoding the obtainedrecompiled control logic data to obtain corresponding executable control logic data; storing the executable control logic data obtained by decoding each time; selecting corresponding executable control logic data according to external instruction setting, and updating the executable control logic data into current control logic; and conducting steam turbine valve control according to the current control logic. By means of the method, online control logic reconfiguration of the module side can be achieved, and therefore the response speed of steam turbine valve control is increased.

Description

technical field [0001] The invention relates to the technical field of industrial control, in particular to a high-speed response steam turbine valve control method, device and system supporting control logic reconfiguration. Background technique [0002] The steam turbine is a group of large-scale high-speed prime movers, and it is one of the main equipment of the thermal power plant unit. The steam turbine is used to drive the generator so that the mechanical energy can be converted into electrical energy, and finally the power supply network can be used for power generation. [0003] The steam turbines in modern power plant units are all controlled by Digital Electric Hydraulic Control System (DEH system). It is realized through the valve position control of the high and medium pressure regulating valve of the steam turbine and the high pressure main steam valve, so valve control is an essential function of DEH. [0004] Among them, the valve opening management is obviou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/10
CPCF01D17/10
Inventor 马伟东吴科吴胜华
Owner NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
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