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Method and system for identifying fossil power generation unit return passage model

A thermal power unit and channel model technology, applied in the electric power field, can solve the problems of strict field conditions and test parameters, poor practicability, etc., and achieve the effect of improving practicability and simplifying the identification process

Active Publication Date: 2015-04-15
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

[0005] Based on this, it is necessary to provide a thermal power unit circuit channel model identification method for the technical problem that the traditional calculation method usually has strict requirements on site conditions and test parameters and poor practicability in the identification process of the thermal power unit circuit channel mathematical model and system

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  • Method and system for identifying fossil power generation unit return passage model
  • Method and system for identifying fossil power generation unit return passage model
  • Method and system for identifying fossil power generation unit return passage model

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Embodiment Construction

[0029] The specific implementation of the thermal power unit circuit channel model identification method and system provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] refer to figure 1 , figure 1 Shown is a flow chart of a thermal power unit circuit channel model identification method of an embodiment, including the following steps:

[0031] S10, acquiring the input data and output data of the circuit channel of the thermal power unit, and preprocessing the input data and output data, removing the input data and output data with large errors;

[0032] In the above step S10, the input data and output data of the thermal power unit circuit channel are first obtained, and the input data and output data are preprocessed to remove the input data and output data with large errors, so that the subsequent thermal power unit circuit channel The input or output data used in the model identification process is mor...

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Abstract

The invention provides a method and a system for identifying a fossil power generation unit return passage model. Input data and output data of a fossil power generation unit return passage are respectively preprocessed, the preprocessed input data and the preprocessed output data are respectively linearly fitted, a fitted straight line is divided into corresponding line segments, the fossil power generation unit return passage model is further identified according to identifying signal models of slopes of the line segments and slopes of line segments formed by adjacent line segment heads and adjacent line segment tails of the line segments, and an advanced modeling tool is provided for optimizing design and debugging maintenance of a control system for controlling a fossil power generation unit. Intermediate quantities such as a re-tangent line, two points and a semi-logarithm do not need to be acquired, the process of identifying the fossil power generation unit return passage is simplified, and the practicability of the identifying method is improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a thermal power unit circuit channel model identification method and system. Background technique [0002] The power generation process is an important part of the power system. Improving the operation control level of the power generation process is the fundamental way to ensure the safe, stable, economical and environmentally friendly operation of the power system. Mastering the operating characteristics of the generating set and obtaining a high-quality mathematical model is the key to achieving a high The basis for performance control. The identification of the mathematical model of the control system affects the design, setting and evaluation of performance indicators of the control system. In the traditional test modeling, the transfer function of the controlled object is obtained by using the open-loop disturbance test data and related identification methods. Dis...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 陈世和张曦罗嘉朱亚清牛玉广林忠伟任娟娟史玲玲庞志强
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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