Power plant, method and system for controlling garbage incineration power plant equipment based on DCS (Distributed Control System)

Abstract

The embodiment of the invention discloses a method for controlling garbage incineration power plant equipment based on DCS. The method comprises the following steps of: acquiring monitoring analog quantities and / or digital switching quantities of a garbage incinerator system, a turbine generator system, a subsequent processing system and an electric control system in a garbage power plant; transmitting the monitoring analog quantities and / or the digital switching quantities to corresponding DCS controllers of the systems to process, and obtaining module processing result corresponding to the systems; receiving the module processing result by the corresponding DCS operator stations of the systems and transmitting control quantities for the associated equipment of the systems by the DSC controllers according to the module processing result. According to the power plant, the method and the system for controlling the garbage incineration power plant equipment based on DCS, problems of a large number of communication points of the DCS and the PLC (Programmable Logic Controller) and many faults are solved; regulations on feeding quantity, primary air quantity and secondary air quantity of the equipment in parallel operation, such as many garbage incinerators in parallel operation can be realized, and the coordinated control of the garbage incinerator and a turbine generator unit in the turbine generator system can be realized.

Description

technical field [0001] The present invention relates to the technical field of waste incineration power plant control, more specifically, relates to a DCS-based waste incineration power plant equipment control method, system and power plant. Background technique [0002] Waste incineration power generation is a new form of power generation that drives steam turbines and other power generation equipment after incineration and treatment of domestic waste. Reasonable and complete control methods and equipment for waste incineration power plants are the guarantee for the transmission and execution of instructions such as waste incineration power generation communication, waste disposal and equipment status feedback. [0003] The control technology used in existing waste incineration power plants is realized in the form of a combination of distributed control system DCS and programmable controller PLC control, that is, the main control uses DCS to build a data monitoring layer an...

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Problems solved by technology

[0004] However, there are at least the following problems in the above-mentioned method of using DCS and PLC to cooperate to control the waste incineration power plant. Since the embedded PLC can only control one controlled device, when the waste incineration power plant is provided with multiple waste incinerators and supporting facilities At the same time, the number of communication points between DCS and PLC increases sharply, which not only increases the communication pressure but also increases the communication failure points between DCS and PLC, which is not easy to maintain; and there is a technical defect that the equipment running in parallel cannot be controlled in an orderly manner

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