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Large coal-fired unit online monitoring and optimal control system and implementation method thereof

A technology for optimal control and coal-fired units, applied in the field of electric power systems, can solve problems such as the inability to automatically find the optimal combustion conditions, the inability to accurately identify the impact of combustion, etc., to achieve low power consumption, improve boiler efficiency, and improve economics Effect

Inactive Publication Date: 2014-04-30
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

[0004] However, the pure combustion optimization and adjustment test cannot automatically find the optimal combustion conditions, and the model established purely based on operating data cannot accurately identify the impact of specific parameters on combustion

Method used

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  • Large coal-fired unit online monitoring and optimal control system and implementation method thereof
  • Large coal-fired unit online monitoring and optimal control system and implementation method thereof
  • Large coal-fired unit online monitoring and optimal control system and implementation method thereof

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] The invention provides an on-line monitoring and optimization control system for boiler operation stability, automatic search for the lowest energy consumption and minimum pollution (NOx), so that even under atypical working conditions, it is not necessary for power plant staff to adjust boiler operating parameters based on experience , but the online monitoring analysis and control system can automatically analyze and adjust the production parameters of the boiler under various working conditions to the best, so as to ensure that the boiler automatically operates in the state of the lowest p...

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Abstract

The invention provides a large coal-fired unit online monitoring and optimal control system and an implementation method thereof. The method includes the steps of analyzing combustion characteristics of a boiler of a large coal-fired unit, and performing boiler combustion optimization and adjustment test to acquire boiler operation key parameters; determining a relation of the boiler operation key parameters to boiler efficiency and NOx emission, and establishing an optimal control model according to the relation; training the optimal control model to obtain specific optimal values of boiler operation parameters under highest boiler efficiency. The large coal-fired unit online monitoring and optimal control system and the implementation method thereof have the advantages that boiler efficiency is improved on the premise of guaranteeing low NOx emission and operational economy of power plants is effectively improved.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to an on-line monitoring and optimization control system of a large coal-fired unit and a method for realizing the on-line monitoring and optimization control system of a large-scale coal-fired unit. Background technique [0002] High efficiency and low pollution are the eternal themes of electric power development. With the advancement of technology, the development of my country's power plant boilers has also entered the stage of large capacity, high parameterization and low emission. However, due to the characteristics of my country's power plant boilers with variable coal quality and large-scale load changes, and boiler objects with typical characteristics of large inertia, large delay, and significant time-varying model parameters with working conditions, when the load changes, the fuel volume , induced air volume, and air supply volume should be coordinated at the same ti...

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Application Information

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IPC IPC(8): F23N5/00F22B35/18
Inventor 罗嘉朱亚清吴乐刘小伟叶向前张曦伍宇忠
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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