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Boiler characteristic calibration method based on operating data

A technology of operation data and calibration method, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of deviation of characteristic design data, uncertainty of model accuracy, and inconsistency between simulation model characteristics and actual characteristics, etc. Achieve the effect of overcoming uncertainty and improving simulation accuracy

Active Publication Date: 2018-11-23
TSINGHUA UNIV
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Problems solved by technology

At the same time, because the design data are all theoretical calculation results, and after the actual unit has been running for a period of time, its characteristics often deviate from the design data, so that the characteristics of the simulation model based on the design data are inconsistent with the actual characteristics, making the model accuracy based on the design data calibrated. certain uncertainty

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  • Boiler characteristic calibration method based on operating data
  • Boiler characteristic calibration method based on operating data
  • Boiler characteristic calibration method based on operating data

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Embodiment Construction

[0019] The specific embodiment and working process of the present invention will be further described below.

[0020] The boiler characteristic calibration method based on operation data involved in the present invention, the calibration method includes constructing a boiler system steady-state model, determining a minimum measurement variable parameter set, data collection, data preprocessing, and calibration calculation.

[0021] Determine the minimum measurement variable parameter set: through boiler operation analysis, construct a boiler system steady-state model including the relationship between material balance and energy balance; and through steady-state model verification, screen out measurable variables and design operations that can complete the calculation of boiler operating characteristics The process is to determine the minimum set of measured variable parameters that can complete the calculation of the boiler operating characteristics.

[0022] In this process,...

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Abstract

The invention discloses a boiler characteristic calibration method based on operating data. The method comprises construction of a steady state model of a boiler system to determine a minimum measuredvariable parameter set, data acquisition, data preprocessing, calibration calculation, and the like. Through the actual operating characteristic parameters under different operating conditions, the dominant factors of boiler operating characteristic parameters can be analyzed, and a dominant factor model of the characteristic parameters can be established. The method overcomes the uncertainty ofthe conventional calculation method based on design data, and the use of a large amount of operating data can obtain the actual operating characteristics of a boiler more precisely and describe the actual operating state and performance of the system more accurately.

Description

technical field [0001] The invention relates to a boiler characteristic calibration method based on operation data, belonging to the technical field of boiler simulation and control. Background technique [0002] The thermal power unit simulator not only improves the operating experience of the unit operators, but also has the advantages of safe, stable, efficient and energy-saving operation of the unit, and also has the advantages of good economy, high safety, and strong flexibility, which is of great significance to the safe and efficient operation of the actual thermal power unit . One of the key technologies to establish the simulation model of thermal power units under all working conditions is to calibrate the operating characteristics of key components within the full range of operating conditions, so as to accurately reflect the operating characteristics of thermal power units under each operating condition. [0003] However, in the prior art, the thermal design dat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/08G06F30/20
Inventor 李政郭章行薛亚丽刘培
Owner TSINGHUA UNIV
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