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A Steady-state Operation Data Screening Method for Steam Turbine Units

A technology for steady-state operation of steam turbine units, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as large amount of calculation and long calculation time, achieve small errors, concise technical solutions, large-scale promotion and The effect of using value

Active Publication Date: 2017-08-04
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD
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Problems solved by technology

[0005] Aiming at the shortcomings of the prior art, such as large amount of calculation and long calculation time, when extracting the steady-state operation data of the unit, the present invention provides a screening method for the steady-state operation data of the steam turbine unit

Method used

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  • A Steady-state Operation Data Screening Method for Steam Turbine Units
  • A Steady-state Operation Data Screening Method for Steam Turbine Units
  • A Steady-state Operation Data Screening Method for Steam Turbine Units

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing.

[0030] extract figure 2 It shows the stable operation data of the electric load parameters in the daily operation data of a 600MW steam turbine unit in a certain power plant. Among them, the data sample S is figure 2 The steady-state operation data of the electric load parameters in the daily operation data of a 600MW unit in a certain power plant is shown, and the shortest duration of steady-state operation of the data sample S is t p =60min, the maximum allowable deviation value σ of electric load 1 =10MW, data sampling interval time t i = 1min, the shortest duration of steady-state operation is t p The number of sampling data contained in d n =61. according to figure 1 , the electric load steady-state operation data screening method of the steam turbine unit of the embodiment is:

[0031] (a) Get data sample S={s 1 ,s 2 ,...,s n}, to determine the minimum du...

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Abstract

The invention relates to the technical field of steam turbine unit operation data analysis, in particular to a steam turbine unit steady-state operation data screening method, which is suitable for the screening of raw data when analyzing and computing performance indicators of the steam turbine unit. Aiming at the shortcomings of the prior art, such as large amount of calculation and long calculation time, when extracting the steady-state operation data of the steam turbine unit, the invention provides a method for screening the steady-state operation data of the steam turbine unit. The invention utilizes the maximum allowable deviation value of the operating parameters, sets the initial value of the retrieval parameters and gradually expands the range of the retrieval parameters, extracts suspected samples of steady-state operation data, verifies and finally extracts the steady-state operation data of the steam turbine unit.

Description

technical field [0001] The invention relates to the technical field of steam turbine unit operation data analysis, in particular to a steam turbine unit steady-state operation data screening method, which is suitable for the screening of raw data when analyzing and computing performance indicators of the steam turbine unit. Background technique [0002] With the rapid development of modern information technology, especially computer network technology, large-scale thermal power plants have generally built DCS (Distributed Control System, DCS for short), SIS (Supervisory Information System in plant level plant level monitoring information system, SIS) and MIS (Management Information System, MIS) are the core information platforms, and the massive data information obtained is of great value for steam turbine unit performance evaluation, energy consumption tracking and monitoring, etc. However, due to factors such as power grid dispatching and unit disturbance, the database is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 郭江龙李晓光米翠丽闫晓沛赵尔丹
Owner STATE GRID HEBEI ENERGY TECH SERVICE CO LTD
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