Boiler combustion implicit generalized predictive control method based on PSO algorithm

Abstract

The invention discloses a boiler combustion implicit generalized predictive control method based on a PSO algorithm, and belongs to the technical field of boiler combustion process control, thereby solving problems of large inertia, large lag, strong coupling and easy model mismatch of a boiler combustion system in the prior art. The boiler combustion implicit generalized predictive control methodbased on a PSO algorithm comprises the following steps: initializing parameters of a power generation boiler combustion process controller; acquiring combustion process variable data of the power generation boiler, and establishing a combustion process model; decoupling the combustion process model according to multivariable implicit generalized prediction characteristics to obtain a decoupled combustion control model; optimizing the control parameters of the combustion control model through a PSO algorithm to obtain an optimized combustion control model; and entering the next moment, repeating the above steps, and carrying out cycle control on the combustion process. Therefore, problems that a traditional control method is high in cost, low in precision and short in service life, and a boiler combustion model is prone to mismatch are solved, and the method has the advantages of being good in control effect and anti-interference performance.

Description

technical field [0001] The invention relates to the technical field of boiler combustion process control, and more specifically relates to a PSO algorithm-based implicit generalized predictive control method for boiler combustion. Background technique [0002] my country is a major coal-producing and coal-burning country in the world. The acid rain caused by sulfur dioxide and nitrogen dioxide emitted by coal-burning has affected 40% of the country's area of ​​nearly 4 million square kilometers. Power plants account for more than 60% of pollutant emissions. Environmental protection The problem is imminent, so how to improve the utilization rate of coal-fired heat energy and reduce the pollution caused by coal to the environment [0003] Boiler is an important equipment that provides thermal power for thermal power generating units. Its safe and stable operation plays a vital role in ensuring power production and supply. However, boiler is a time-varying, strongly coupled and ...

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Problems solved by technology

[0006] Aiming at the problems of large inertia, large lag, strong coupling and model mismatch in the boiler combustion system existing in the prior art, the present invention provides an implicit generalized predictive control method for boiler combustion based on the PSO algorithm, which can control the main steam in real time Pressure, furnace negative pressure and flue gas oxygen content effectively alleviate the problems of traditional control methods such as high cost, low precision, short service life and easy mismatch of boiler combustion model, with good control effect and anti-interference characteristics

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