A tracking control method for the main vapor pressure of a circulating fluidized bed for biomass heat and power cogeneration

Abstract

The invention discloses a biomass combined heat and power generation circulating fluidized bed main steam pressure tracking control method. According to the method, aiming at the control problem of the biomass combined heat and power generation circulating fluidized bed main steam pressure tracking target value, a simultaneous differential equation of the main steam pressure, the main steam pressure tracking deviation cumulant and the straw burning capacity of a biomass combined heat and power generation circulating fluidized bed is built, the actual value and the tracking target value of themain steam pressure of the biomass combined heat and power generation circulating fluidized bed are measured and read in an on-line mode, a biomass combined heat and power generation circulating fluidized bed main steam pressure automatic tracking controller is designed, the amount of biomass entering the circulating fluidized bed for combustion is calculated in real time, and automatic tracking control of the biomass combined heat and power generation circulating fluidized bed main steam pressure over the pressure target value is achieved. The biomass combined heat and power generation circulating fluidized bed main steam pressure tracking control method provided by the invention is visual in understanding, simple in design and each to achieve.

Description

technical field [0001] The invention belongs to the field of automatic control of a biomass cogeneration circulating fluidized bed, and relates to a main steam pressure tracking control method of a biomass cogeneration circulating fluidized bed. Background technique [0002] Biomass is an efficient and available renewable clean fuel, which can replace mineral fuels such as coal, oil and natural gas to generate electricity. It not only reduces human dependence on fossil energy, protects national energy resources, but also strictly implements efficient combustion of biomass It is an important means to reduce the concentration of PM2.5 in my country and reduce the pollution caused by energy consumption to the environment. At present, Europe and the United States have established relatively complete biomass cogeneration plants, which prove that the cogeneration of biomass power generation and heat supply has significant energy and environmental benefits, and the recycling of wast...

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Problems solved by technology

[0003] In order to overcome the deficiencies of abstract understanding, complex online calculation and complex application process of the existing biomass cogeneration circulating fluidized bed main vapor pressure tracking control method, the present invention provides a biomass thermoelectric system with intuitive understanding, simple design and easy implementation. Method of Tracking and Controlling the Main Vapor Pressure of Cogeneration Circulating Fluidized Bed

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