Coordination control method for integral coal gasification combined circulation power station

Abstract

The invention puts forward a coordinated control method for an integrated coal gasification combined cycle power plant, aiming at a characteristic that the time constant of each equipment of the controlled object in the integrated coal gasification combined cycle power plant has great difference. The method adopts a cascade stratified control system structure, and is provided with an upper-layered main controller, namely, a coordination controller, and a lower-layered sub controller, namely, comprising a gasification island sub controller and a power island sub controller, wherein, the main controller is used for the calculation of a main control command and then sends to the lower-layered sub controller for the control of corresponding equipments, the lower-layered sub controller is alsoin charge of the regulation of other main controlled variables in the system; the control method coordinates the running of each equipment of the power plant gasification island and the power island,and realizes power plant load automatic regulation by the premise of guaranteeing the stability and safety of the power plant; and by applying the method, a coordinated control system provided with good stability and variable load performance can be conveniently designed according to different types of integrated coal gasification combined cycle units.

Description

Coordinated control method for integrated coal gasification combined cycle power plant technical field The invention belongs to the technical field of equipment control, in particular to a coordinated control method for an integrated coal gasification combined cycle power station. Background technique Integrated coal gasification combined cycle power generation technology is a new type of power generation technology that combines coal gasification technology and gas-steam combined cycle technology. Therefore, compared with conventional thermal power generation units, integrated coal gasification combined cycle power generation has the advantages of less pollutant emissions and high power generation efficiency. It is a clean coal power generation technology with broad application prospects. Research has become a hot spot. Our country has included the research of IGCC technology in the national high-tech research and development plan (863 plan), and completed a number of dem...

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Problems solved by technology

At present, there are basically no reports on the research on the coordinated control system of the integrated coal gasification combined cycle power plant at home and abroad, and there is no detailed introduction to the control method and detailed implementation steps such as controller parameter adjustment.

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