Unit self-start and stop control system

Abstract

The embodiment of the present invention provides a self-starting and stopping control system of the unit, the system includes: the starting and stopping function group of the unit self-starting and stopping control system, which is used to set the modules that complete different preset control functions, and adjust the The preset plant-level control target implemented by the power plant, the modules required to complete the preset plant-level control target are combined, and the execution command of the specified module in the combined modules is sent to the execution module group; the execution module group uses Sending a call command to the device-level driver required to complete the specified module according to the received execution command; the device-level driver is used to start the device corresponding to the device-level driver according to the received call command. This scheme improves the intelligent control of the unit's self-starting and stopping control system, and at the same time improves the control flexibility and reliability of the unit's self-starting and stopping control system.

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. The Automatic Plant Start-up and Shutdown System (APS for...

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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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