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Method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis

A statistical analysis and unit technology, applied in the field of quantitative analysis, can solve problems such as unfavorable excitation of thermal power units, inability to comprehensively and objectively reflect peak shaving performance, lack of persuasiveness in scheduling and rewards and punishments, and achieve the effect of expanding peak shaving capabilities.

Active Publication Date: 2018-10-23
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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Problems solved by technology

Therefore, the previous evaluation methods cannot fully and objectively reflect the peak-shaving performance of each peak-shaving unit within a period of time, and the scheduling and rewards and punishments based on this method are not convincing, which is not conducive to stimulating the motivation of thermal power units to participate in peak-shaving work

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  • Method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis
  • Method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis
  • Method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis

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Embodiment Construction

[0030] In order to better understand the present invention, the specific embodiments of the present invention will be explained in detail below with reference to the accompanying drawings and application examples.

[0031] Taking 3 units A, B, and C in Shandong Province as an example, applying the method of the present invention, according to figure 1 The process is ranked by the peak shaving ability index of the unit.

[0032] According to the needs, determine the evaluation period as 15h, and obtain the active power value per minute during the time period from the intermediate adjustment, the load rate of the three units and the total load rate of the direct-regulated thermal power units in the province. image 3 Shown.

[0033] Judge the change of the total load rate of the direct-regulated thermal power units in the province, and divide the load-increasing interval and the load-decreasing interval. The judgment method is attached figure 2 Shown. The result of judgment is that...

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Abstract

The invention discloses a method for determining the peak load regulation contribution of grid-connected generating units based on statistical analysis. The method is characterized comprising steps of: determining the total load rate increase and decrease section of direct-regulated thermal power generating units and the increase and decrease load sub section of each generating unit participatingin the peak load regulation; determining that a generating unit makes a positive contribution to the peak load regulation of the whole grid when the load increase and decrease of the generating unit in the corresponding section is consistent with the load increase and decrease of the total load rate of the section, or determining that the generating unit makes a negative contribution to the peak load regulation of the whole grid when the load increase and decrease of the generating unit in the corresponding section is inconsistent with the load increase and decrease of the total load rate of the section. The method of statistical analysis evaluates and ranks the peak load regulation effects of different generating units fairly and objectively by using a peak load regulation contribution index so as to screen out the generating unit having the largest contribution during the peak load regulation of the grid. It is possible to accurately monitor and analyze the peak load regulation participation and performance of the peak load regulation generating units, so as to form a market mechanism for rewards and punishments of grid scheduling.

Description

Technical field [0001] The invention relates to the technical field of thermal power generation, and is a method of evaluating the contribution of each peak-regulating unit to the peak regulation of the power grid in a period of time through statistical analysis of the active power of the peak-regulating power plant, and is used for quantitative analysis of the power grid’s effect on the peak regulation of the unit. Background technique [0002] With the need for sustainable development of my country’s power industry and national economy, UHV power grids are gradually being built, with large-scale access to clean energy such as wind power, solar power, and nuclear power. The installed capacity of thermal power is severely surplus, the power grid’s peak shaving capacity is insufficient, and water waste has occurred. , Wind abandonment, and solar abandonment phenomenon. It is necessary to mobilize the enthusiasm of thermal power units to participate in peak shaving and expand peak s...

Claims

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Application Information

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IPC IPC(8): H02J3/48
CPCH02J3/48
Inventor 杨兴森苏建军王勇刘科王海超张绪辉王守恩胡志宏刘景龙张利孟
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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