A unit automatic start-stop control system

Abstract

The present invention proposes a self-starting and stopping control system of a unit, including: a start control level group and a stop control level group, which issue a start command or a stop command; a function level group, which is used to receive and execute the start or stop control level group issued Start command or stop command, if the function level group can execute the start command or stop command, then send the start command or stop command; the sub-function level group is used to receive and execute the start command or stop command issued by the function level group, if If the function-level group can execute, the start command or stop command is sent to the next level; the equipment-level group is used to receive and execute the start command or stop command issued by the sub-function level group, if the device-level group cannot execute the start command or The stop command generates a feedback command and transmits it to the sub-function level group. If the equipment level group can execute the start command or stop command, the equipment level group starts or stops, thereby, the present invention has the function of conveniently controlling the start and stop work of each device in the generator set. The advantages.

Description

technical field [0001] The invention belongs to the technical field of start-stop control of power plant units, and in particular relates to a unit self-start-stop control system. Background technique [0002] At present, the automatic power plant start-up and shutdown control system (Automatic Power Plant Start-up and Shut-down, referred to as APS) is the automatic start and stop control system of thermal power plants. It is a system that realizes the automation of the start-up and shutdown process of the unit. Comprehensive, accurate and real-time detection of the operating status of auxiliary equipment and related process parameters, based on a large number of logical judgments in terms of conditions and time, according to the customized mode to each functional group in the sequence control system (SCS), function Subgroups and individual equipment issue start or stop commands, and through Coordinated Control System (CCS), Analog Control System (MCS), Furnace Safety Monit...

AI Technical Summary

Problems solved by technology

[0003] The ultra-supercritical unit, especially the million-kilowatt ultra-supercritical unit, has a large number of equipment, large capacity, high operating parameters, and complex control system structure. The unit puts forward higher requirements for the operation and management level of the operating personnel. During the start-up and shutdown process of the unit, if the operator performs a large number of manual operations, it is not only prone to misoperation accidents, but also greatly affects the safety and economy of the unit operation.

Images