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Evaluation Method of Unit Peak Regulation Capability Based on Data Mining

A data mining and unit technology, applied in control/regulation systems, instruments, adaptive control, etc., can solve problems such as the inability to dynamically monitor the network-related performance of the unit, and the inability to accurately reflect the heating condition map, and achieve accurate and efficient data processing. situation analysis, real-time monitoring and supervision, and universal applicability

Active Publication Date: 2021-02-26
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention aims to solve the problem that the traditional periodic off-line test cannot dynamically monitor the grid-related performance of the unit in the peak regulation of the current unit and the problem that the designed heating condition diagram cannot accurately reflect the actual operating state of the unit

Method used

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  • Evaluation Method of Unit Peak Regulation Capability Based on Data Mining
  • Evaluation Method of Unit Peak Regulation Capability Based on Data Mining
  • Evaluation Method of Unit Peak Regulation Capability Based on Data Mining

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Embodiment Construction

[0052]It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0053] figure 1 For the implementation flowchart of the present invention, mainly comprise the following steps:

[0054] Step 1: Get Raw Data

[0055] Now obtain the historical data of the unit operation of a power plant in the north from November 2015 to March 2016, select key parameters such as heating extraction steam flow, main steam flow and power generation power, and the data sampling frequency is 1 piece per second to obtain the original sample data.

[0056] For example, for a fault sample data with n measuring points and m time points, all measuring point data at time j can be regarded as an n-dimensional column vector, expr...

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Abstract

The invention discloses a method for evaluating the peak-shaving capability of a unit based on data mining, which includes: obtaining original data: the original data includes: heating extraction steam flow, main steam flow and power generation load; data preprocessing: given according to the unit operating regulations The normal range of the original data, remove the shutdown data and error data; divide the working conditions based on the heating and extraction steam flow, and obtain several heating and extraction steam flow working condition intervals; perform standard data screening on the pre-processed data; build the working condition model ; According to the obtained working condition model, draw the heating condition map; according to the obtained working condition model, the power generation power and the heating extraction steam flow under different heating and extraction steam flow conditions are respectively interval estimated. The invention can not only realize the goal of determining electricity by heat for estimating the power generation load interval by the extraction steam flow rate, but also realize the goal of determining heat by electricity for estimating the steam extraction flow interval by using the power generation load.

Description

technical field [0001] The invention relates to the field of evaluating the peak-shaving capability of a heating unit, in particular to a method for evaluating the peak-shaving capability of a unit based on data mining. Background technique [0002] With the rapid changes in the power grid pattern and power structure, the State Grid is facing a new situation. The proportion of access to new energy sources is increasing year by year, and the access of random power sources brings difficulties to the adjustment of active and reactive power in the grid. Grid peak regulation is almost entirely undertaken by conventional thermal power units, while the proportion of adjustable units is gradually decreasing. [0003] The thermal power unit has high stability and controllability, and is a reliable support for the safe and stable operation of the power grid. However, thermal power units are facing new situations such as the pressure of environmental protection and energy saving, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 赵岩路宽丁俊齐庞向坤赵俊安佰京高嵩孟祥荣
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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