Automatic plant startup and shutdown system

Abstract

The embodiment of the invention provides an automatic plant startup and shutdown system. The system comprises an automatic plant startup and shutdown system start-stop function group which is used for setting modules for completing different preset control functions, assembling modules needed for completing a preset plant-level control objective according to the preset plant-level control objective to be executed on a power plant and sending an execution instruction for executing a specified module in the assembled module to an execution module group, the execution module group which is used for sending a call instruction to an equipment-level driving end needed for completing a specified module according to the received execution instruction, and the equipment-level driving end which is used for starting equipment corresponding to the equipment-level driving end according to the received call instruction. Through the scheme, the level of intelligent control of the automatic plant startup and shutdown system is improved, and the flexibility and reliability of the automatic plant startup and shutdown system are improved.

Description

technical field [0001] The invention relates to the technical field of automatic control of power plants, in particular to an automatic start-stop control system of a unit. Background technique [0002] In the gas-steam combined cycle two-to-one generator set, the system structure is relatively complicated, and the operator needs to face two gas turbines, two waste heat boilers, three generators, one steam turbine and related auxiliary systems, so that the operator can The responsibility is heavy and the care is difficult, especially in the process of starting and stopping the unit system, and the operation requirements are higher. [0003] With the continuous maturity of the development of the distributed control system (referred to as DCS) and the continuous improvement of the control precision of the local control equipment, the requirements for the control system of the power plant are also continuously improved. Automatic Plant Start-up and Shutdown System (APS for sho...

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Problems solved by technology

[0008] (3) If the control process needs to be changed, the GC logic needs to be completely revised, and it is impossible to judge by itself. For example, the typical design process is as follows: figure 2 shown

[0010] After the entire plant-level control requirements are set at the GC layer, the physical equipment-level equipment system control commonly used in power systems is used as the distinction of SGCs, that is, the equipment-level system controls required to complete the plant-level control requirements are used to distinguish SGCs. SGC completes a physical equipment-level system control, and this design method solidifies the factory-level control requirements and the distinction between equipment-level system controls. It cannot intelligently diagnose the status of related equipment systems, and cannot artificially simplify complex system problems. Leaving relevant system issues to the operator to judge, increasing the responsibility of the operator, and reducing the flexibility and reliability of APS

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