Thermal power generating unit primary frequency modulation index calculation method and system based on trend extraction

A technology for thermal power generation and trend extraction, applied in computing, instrumentation, data processing applications, etc., to achieve the effect of good applicability, ensuring large-scale new energy consumption and smooth operation of the power grid, and overcoming large noise interference

Active Publication Date: 2019-10-25
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] In order to solve the problems existing in the existing primary frequency modulation performance index calculation method, thi

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  • Thermal power generating unit primary frequency modulation index calculation method and system based on trend extraction
  • Thermal power generating unit primary frequency modulation index calculation method and system based on trend extraction
  • Thermal power generating unit primary frequency modulation index calculation method and system based on trend extraction

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[0040] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] 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.

[0042] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinati...

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Abstract

The invention provides a thermal power generating unit primary frequency modulation index calculation method and a thermal power generating unit primary frequency modulation index calculation system based on trend extraction. The method comprises the steps: searching the actual power and power grid frequency historical data of a thermal power generating unit according to the characteristic quantized value of a thermal power generating unit primary frequency modulation data segment, and obtaining the thermal power generating unit primary frequency modulation data segment; trend extraction is carried out on the obtained primary frequency modulation data segment of the thermal power generating unit; on the basis of the trend of each sub-data segment, determining the sub-data segment of whichthe trend change direction is opposite to the frequency change direction and the amplitude change is maximum as a primary frequency modulation action segment; and on the basis of the amplitude variation of the primary frequency modulation action section and the sample timestamp, obtaining parameter values required by calculation of the primary frequency modulation performance index of the thermalpower generating unit, and calculating the primary frequency modulation performance index of the thermal power generating unit. The method can effectively overcome the problems of a current thermal power generating unit primary frequency modulation performance index calculation method, and is of great significance in promoting the primary frequency modulation performance assessment of the thermalpower generating unit by the power grid, improving the stable operation level of the power grid and large-scale new energy consumption.

Description

technical field [0001] The present disclosure relates to a method for calculating performance indicators of primary frequency modulation, in particular to a method and system for calculating performance indicators of primary frequency modulation of thermal power units based on trend extraction. Background technique [0002] With the continuous development of my country's wind power, photovoltaic and other new energy power construction, the power generation capacity of new energy that needs to be absorbed by the grid continues to increase. However, new energy power generation has the characteristics of intermittent, fluctuating, and periodic, which makes the power grid frequency increasingly severely impacted. In order to ensure the consumption of new energy and the stable operation of the power grid, the primary frequency regulation performance of thermal power units has been increasingly valued by the power grid. At present, the primary frequency regulation performance asse...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 王建东赵泽宁杨子江张超
Owner SHANDONG UNIV OF SCI & TECH
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