A method based on statistical analysis to determine the peak regulation contribution of on-grid units
A unit and peak shaving technology, applied in the field of quantitative analysis, can solve problems such as unfavorable stimulation of thermal power units, lack of persuasiveness in scheduling and rewards and punishments, and inability to fully and objectively reflect peak shaving performance, and achieve the effect of expanding peak shaving capabilities
Active Publication Date: 2020-12-15
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to better understand the present invention, the specific implementation manners of the present invention will be explained in detail below in conjunction with the accompanying drawings and application examples.
[0031] Take 3 units such as A, B, and C in Shandong Province as an example, apply the method of the present invention, according to figure 1 The process is sorted by the peak shaving capability index of the units.
[0032] Determine the evaluation period as 15 hours according to the needs, and obtain the active power value per minute during this time period from the central adjustment office, the load rate of the three units and the total load rate of the direct-regulated thermal power units in the province are as follows image 3 shown.
[0033] Determine the changes in the total load rate of the direct-regulated thermal power units in the province, and divide the load-up interval and the load-down interval. Judgment method as attached figure 2 sh...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More 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, which evaluates the contribution degree of each peak-shaving unit to the peak-shaving of the power grid within a period of time through the statistical analysis of the active power of the peak-shaving power plant, and is used for quantitative analysis of the peak-shaving effect of the power grid on the unit. Background technique [0002] With the needs of the sustainable development of my country's electric power industry and national economy, UHV power grids are gradually being built, and clean energy such as wind power, solar energy, and nuclear power are connected on a large scale, thermal power installed capacity is seriously excess, power grid peak regulation capacity is insufficient, and water abandonment occurs. , abandoned wind, abandoned light phenomenon. It is necessary to mobilize the enthusiasm of thermal power units to participate in peak regulation and expand peak re...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
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