CN-122022877-A - Method for discharging and clearing spot market of external power supply and internal power

Abstract

The invention is applicable to the technical field of power spot market clearing and provides an out-delivery power-saving in-power spot market clearing method, which comprises the steps of calculating out-delivery superimposed power of a target unit in a current transaction period based on acquired out-delivery power data and technical parameter data; an additional curve section is generated based on additional power and the acquired market price lower limit, each section of original declaration curve data is subjected to data translation processing based on the additional power, the declaration curve data subjected to the data translation processing is subjected to data truncation processing to obtain an effective curve section subjected to the data truncation processing, the additional curve section and the effective curve section are subjected to data splicing to generate a post-reconstruction declaration curve of a target unit, the current transaction period is cleared in the provincial power spot market based on the post-reconstruction declaration curve, accuracy of clearing calculated input data is ensured, and reliability of a clear price signal of the provincial spot market is improved.

Inventors

• SUN YI
• XU PENG
• WU GANG
• WANG YI
• ZHU TONG
• GUO XIAMING
• DENG FUYAO
• CHEN HU
• HE CHUAN
• XIANG JING
• WANG YANFENG
• MIAO SHUMIN
• HE ZHIHUA
• ZHANG PENG
• LIAO BINJIE
• SU FU
• LU DIE
• WANG LILI
• WANG JINLONG
• YIN TAO
• YE XI
• LIU WEI
• LI MIN
• LI JINLONG
• ZHANG CAIBIN
• WU JUN
• DENG ZHISEN
• ZHANG DAWEI
• XI LITANG
• HOU YANQIU
• WANG JIAJIA
• PENG LILIN
• XU HANGTAO
• ZHANG CHI
• LUO HAO
• Li luoyi
• XIANG YUEPING
• LI JIANLI
• ZHANG HONGTU
• ZHOU JIAN
• XIAO CHANG
• TANG LUN

Assignees

• 国网四川省电力公司
• 国网四川省电力公司经济技术研究院

Dates

Publication Date

20260512

Application Date

20251218

Claims (10)

1. 1. A method of off-the-shelf and on-the-shelf power spot-market delivery, comprising: acquiring the outgoing power data, original declaration curve data, technical parameter data and a market price lower limit set by the power spot market in the province of the target unit in the current transaction period; Based on the outgoing power data and the technical parameter data, calculating to obtain outgoing superposition power of the target unit in the current transaction period; generating an outgoing new added curve segment based on the outgoing superimposed power and the market price lower limit; Carrying out data translation processing on each section of the original declaration curve data based on the sending superposition power, and carrying out data truncation processing on the declaration curve data subjected to the data translation processing to obtain an effective curve section subjected to the data truncation processing; Performing data splicing on the newly added curve segment sent out and the effective curve segment to generate a declaration curve of the target unit after reconstruction of the current transaction period; And based on the post-reconstruction declaration curve, clearing the current transaction period in the intra-provincial power spot market.
2. 2. The method for off-the-shelf and on-the-shelf power spot market clearing of claim 1, wherein the calculating the off-the-shelf superimposed power of the target unit in the current transaction period based on the off-the-shelf power data and technical parameter data comprises: Determining the composition of the outgoing power data according to the unit type in the technical parameter data and the current market link, wherein: the market links comprise a daily market and a real-time market; The outgoing power data comprises inter-province outgoing medium-and-long-term contract power in the current transaction period, inter-province spot outgoing bid-winning power before the day and real-time inter-province spot outgoing difference correction amount acquired from the inter-province power transaction platform in real-time market links.
3. 3. The method of off-the-shelf and on-the-shelf power spot market clearing of claim 2, wherein the calculating obtains the off-the-shelf superimposed power of the target unit during the current transaction period, comprising: When the unit type is coal-fired thermal power and is in a day-ahead market link, calculating first initial outward power according to the inter-provincial outward transmission middle-long-term contract power and the inter-provincial spot outward transmission winning power; When the unit type is coal-fired thermal power and is in a real-time market link, calculating second initial external power according to the inter-province external power long-term contract power, the current inter-province spot-delivery winning power and the current inter-province spot-delivery deviation correction quantity; when the unit type is hydroelectric or new energy, if the unit type is in a day-ahead market link, the output superposition power is equal to the sum of the long-term contract power in the inter-province output and the spot-delivery bid-in-the-day during the inter-province output, and if the unit type is in a real-time market link, the output superposition power is equal to the sum of the long-term contract power in the inter-province output, the spot-delivery bid-in-the-day during the inter-province output and the spot-delivery deviation correction quantity between the real-time province.
4. 4. The method of off-the-shelf and on-the-shelf power spot-market clearing of claim 3, wherein said comparing the first initial off-the-shelf power to a minimum adjustable power in technical parameter data, determining an off-the-shelf superimposed power, comprises: And if the first initial external power is larger than the minimum adjustable output force, the external superimposed power is equal to the first initial external power minus the minimum adjustable output force, and if not, the external superimposed power is zero.
5. 5. The method of off-the-shelf and on-the-shelf power spot-market clearing of claim 3, wherein said comparing the second initial off-the-shelf power to a minimum adjustable power in technical parameter data, determining an off-the-shelf superimposed power, comprises: And if the second initial external power is larger than the minimum adjustable output force, the external superimposed power is equal to the second initial external power minus the minimum adjustable output force, and if not, the external superimposed power is zero.
6. 6. The method of off-the-shelf and on-the-shelf power spot market clearing of any one of claims 1 to 5, wherein the output starting point of the output newly added curve segment is zero, the output ending point is the output superimposed power, and the quote is the market price lower limit.
7. 7. The out-feed power-provincial in-power spot-market clearing method according to any one of claims 1 to 5, wherein the performing data shift processing on each segment of the original declaration curve data based on the out-feed superimposed power includes: And generating a corresponding translated curve segment for each segment of the original declaration curve data, wherein the output starting point of the translated curve segment is equal to the original output starting point plus the output superposition power, the output end point of the translated curve segment is equal to the original output end point plus the output superposition power, and the quotation of the translated curve segment is kept the same as the original quotation.
8. 8. The method for off-the-shelf and on-the-shelf power spot market clearing of claim 7, wherein the step of performing data truncation processing on the declared curve data subjected to the data translation processing to obtain an effective curve segment subjected to the data truncation processing comprises the steps of: Judging whether the output starting point and the output end point of each translational curve segment exceed rated output in the technical parameter data or not; If the starting point of the output force is larger than or equal to the rated output force, discarding the curve section after translation; if the output end point is larger than the rated output, correcting the output end point of the curve segment after translation to the rated output; if the output starting point is smaller than the rated output and the output end point is larger than the rated output, reserving the curve section after translation and cutting off the output end point of the curve section after translation to the rated output; And taking all the translational curve segments which are reserved after judgment and correction as effective curve segments.
9. 9. The method of claim 1, wherein the data stitching the outgoing newly added curve segment with the valid curve segment to generate a post-reconstruction declaration curve of the target unit during the current transaction period, comprises: Combining the outgoing newly added curve segment with the effective curve segment to form a curve segment set; And carrying out ascending sort on all curve segments in the curve segment set according to the output starting point value to generate a reconstructed declaration curve.
10. 10. The method of claim 9, wherein said ascending ordering all curve segments in said set of curve segments according to the value of the output origin to generate a post-reconstruction declaration curve comprises: Checking whether the output starting point of the first curve segment in the reporting curve after reconstruction is zero; checking whether the output end point of any curve segment is equal to the output starting point value of the next curve segment except the last curve segment in the reconstructed declaration curve; And generating a target post-reconstruction declaration curve if and only if the post-reconstruction declaration curve passes all the checks.

Description

Method for discharging and clearing spot market of external power supply and internal power Technical Field The invention relates to the technical field of electric power spot market clearing, in particular to an electric power spot market clearing method in an external power transmission province. Background In the technical operation system of the provincial power spot market, a large number of provincial outgoing transactions participated by the provincial generator sets exist. To ensure smooth grid power balance and market delivery, prior art systems commonly employ data processing models that are equivalent to tie-line gate load increments to handle such transactions. The specific technology of the model is that before market clearing calculation, long-term contract power and inter-provincial spot power of a unit in inter-provincial delivery of each transaction period are used as a fixed data increment and are overlapped on the intra-provincial actual electricity load data acquired and summarized from an electricity utilization side, so that a total demand data set which is used for subsequent market clearing calculation and contains virtual loads is generated. The data processing model with equivalent tie-line gate load increment wrongly rewrites the real power consumption demand data in the province, and constructs a demand side data model deviating from physical reality. When the distorted demand data model and reporting curve data submitted by the power generation side and reflecting the actual physical power generation cost and capacity are calculated, calculation deviation is systematically introduced. Specifically, the artificial increase of the demand data can cause the marginal clearing algorithm to address the higher-quotation power generation unit inevitably, so that the finally output clearing price signal cannot accurately reflect the real power supply and demand relationship in the province, and the output price signal has fixed deviation. The defective data processing method not only reduces the accuracy and reliability of the market clearing result, but also transmits distorted supply and demand signals to market participants, and in the long term, the optimal configuration efficiency of power generation resources can be interfered, and the economical efficiency and the stability of the whole operation of the power system are affected. Disclosure of Invention The invention provides an external power supply province internal power spot market clearing method which is used for solving the problem that the accuracy and reliability of market clearing results are reduced. The invention provides a method for discharging an external power transmission province internal power spot market, which comprises the following steps: acquiring the outgoing power data, original declaration curve data, technical parameter data and a market price lower limit set by the power spot market in the province of the target unit in the current transaction period; Based on the outgoing power data and the technical parameter data, calculating to obtain outgoing superposition power of the target unit in the current transaction period; generating an outgoing new added curve segment based on the outgoing superimposed power and the market price lower limit; Carrying out data translation processing on each section of the original declaration curve data based on the sending superposition power, and carrying out data truncation processing on the declaration curve data subjected to the data translation processing to obtain an effective curve section subjected to the data truncation processing; Performing data splicing on the newly added curve segment sent out and the effective curve segment to generate a declaration curve of the target unit after reconstruction of the current transaction period; And based on the post-reconstruction declaration curve, clearing the current transaction period in the intra-provincial power spot market. Further, the calculating, based on the outgoing power data and the technical parameter data, the outgoing superposition power of the target unit in the current transaction period includes: Determining the composition of the outgoing power data according to the unit type in the technical parameter data and the current market link, wherein: the market links comprise a daily market and a real-time market; The outgoing power data comprises inter-province outgoing medium-and-long-term contract power in the current transaction period, inter-province spot outgoing bid-winning power before the day and real-time inter-province spot outgoing difference correction amount acquired from the inter-province power transaction platform in real-time market links. Further, the calculating obtains the output superposition power of the target unit in the current transaction period, including: When the unit type is coal-fired thermal power and is in a day-ahead market link, calculating first initial outward power acco