Auxiliary workshop centralized control method for electricity generating enterprise

Abstract

The invention discloses an integral concentration control method of plant management and control, which is characterized by the following: programming the concentration control and management of operation, monitor and management equipment in the coal handling, ash removal and water carbureting auxiliary workshop; setting the concentration control chamber of auxiliary workshop; controlling the integral PLC or DCS unit in each control chamber of auxiliary workshop to do concentration management; accomplishing the concentration control and management through network control; setting four control points of control chamber, water carbureting, coal handling and ash in the auxiliary chamber. The network structure is allocated in each control chamber of auxiliary workshop, which adapts hybrid topology structure; the auxiliary workshop adapts concentration star topology structure; the PLC or DCS concentration control network adapts industrial Ethernet. The system control power, controller and network all apply redundant allocation.

Description

1. Technical field [0001] The present invention relates to a method for operation, management and control of auxiliary workshops of power generation enterprises, in particular to an integrated and centralized management and control method for the operation, monitoring and management of auxiliary workshops (coal transportation, ash removal, water treatment, etc.) of power generation enterprises Control Method. 2. Background technology [0002] In recent years, the emergence of domestic large-unit thermal power plants (single unit capacity 600MW-1000MW) has put forward new requirements for the control and management of auxiliary workshops. According to the traditional way of thinking, relatively decentralized control rooms are not easy to manage, and some control room operators have too little workload, and the overall staff is too large; power plants use different hardware and software in each control system to provide spare parts management, personnel training and maintenanc...

AI Technical Summary

Problems solved by technology

[0005] (1) Part of the control subsystem is provided by the process equipment manufacturer and requires an independent monitoring duty point. The equipment and parameters that need to be monitored cannot be monitored from a set of systems, resulting in a large number of control systems, a large number of operating personnel, and difficult management

[0006] (2) There are generally dozens of sets of independent control systems in operation in the auxiliary workshop of large-scale units. Even if these control systems all use the same brand and the same series of control systems, they can only share spare parts, because they are from different suppliers. Provided, the technical information is not unified, which brings a lot of inconvenience to system management and maintenance, fails to solve the problem fundamentally, requires a large number of maintenance personnel, and increases system operating and management costs

[0007] (3) The operation methods of the suppliers of each control subsystem are very different. Some power plants have formulated the goal of centralized control of auxiliary workshops, hoping to eliminate the "island" phenomenon of automation through the integration of the original control systems. Difficult coordination among manufacturers, numerous interfaces, complex network structure, etc., resulting in slow operation response, low reliability, failed to achieve the expected transformation goal of reducing duty points, and the system still has the phenomenon of "control island"

It can be said that without the safe and stable operation of auxiliary systems, there will be no safe and stable operation of large units.

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