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New energy cross-regional consumption method and system based on scene analysis

A new energy, cross-regional technology, applied in the field of new energy cross-regional consumption based on scenario analysis, can solve the problem of passive coordination of power generation plans, modeling research, failure to make full use of the complementary space of new energy consumption in two regions, etc. question

Pending Publication Date: 2021-01-19
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above studies have been effective in optimizing the transmission plan of the DC line and promoting the transmission and consumption of new energy. However, because the model fails to conduct modeling research on the UHV DC line and the regions at both ends at the same time, the power generation in one or two regions The plan must be passively coordinated, failing to make full use of the complementarity of the new energy consumption spaces in the two regions, or failing to deal with the uncertainty of new energy forecasts in the two regions, so as to alleviate or solve its impact on the consumption of new energy in the two regions and the safety and reliability of the power grid. operational impact issues

Method used

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  • New energy cross-regional consumption method and system based on scene analysis
  • New energy cross-regional consumption method and system based on scene analysis
  • New energy cross-regional consumption method and system based on scene analysis

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Embodiment 1

[0113] The method for cross-regional consumption of new energy based on scene analysis provided by the embodiment of the present invention, its specific implementation process is as follows figure 1 shown, including:

[0114] S101: Bring the new energy historical forecast error data, new energy forecast generation curve, and new energy load curve of the two regional power grids into the pre-built UHV DC cross-regional consumption model, and obtain the maximum expected value of cross-regional new energy consumption. Unit start-stop and DC line transmission optimization plan in each area;

[0115] S102: Execute the optimization plan for the start-up and stop of the units in each area and the transmission of the DC line to realize the consumption of new energy in the two areas.

[0116] Specifically, in step S101, the historical new energy forecast error data, new energy forecast generation curve, and new energy load curve of the two regional power grids are respectively brought...

Embodiment 2

[0192] Based on the same inventive concept, the present invention also provides a new energy cross-region consumption system based on scene analysis, such as Figure 4 As shown, the system includes:

[0193] The optimization module is used to bring the new energy historical forecast error data, new energy forecast generation curve and new energy load curve into the UHV DC cross-regional consumption model in the sending-end area and the receiving-end area, so as to obtain the cross-regional new energy consumption power Optimum plan for start-stop of two-area units and DC line transmission with maximum expected value;

[0194] The processing module is used to execute the optimization plan for the start-up and stop of the units in the two areas and the transmission of the DC line, so as to realize the consumption of new energy in the two areas.

[0195] Among them, the UHV DC cross-region consumption model includes: new energy forecasting scenario set unit, objective function un...

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Abstract

The invention provides a new energy cross-regional consumption method based on scene analysis. The method comprises the steps: respectively bringing new energy historical prediction error data of a two-region power grid, a new energy prediction power generation curve and a new energy load curve into a pre-constructed extra-high voltage DC cross-regional consumption model, obtaining a start-stop and direct-current line transmission optimization plan of each regional unit meeting the maximum expected value of the cross-regional new energy consumption electric quantity; executing the two-region unit start-stop and direct-current line transmission optimization plan to realize two-region new energy consumption. According to the technical scheme provided by the invention, the extra-high voltagedirect current cross-regional consumption model is established; the extra-high voltage direct current line, the sending end region and the receiving end region are used as research objects; the new energy consumption spaces of the two regions are fully coordinated, and the new energy consumption of the two regions is promoted.

Description

technical field [0001] The invention relates to the field of UHV direct current transmission plan optimization, in particular to a method for cross-regional consumption of new energy based on scenario analysis. Background technique [0002] With the continuous integration of large-scale new energy into the grid, the penetration rate of new energy has gradually increased. However, due to the limited local consumption capacity in some areas, it is impossible to fully consume new energy power generation, and the problem of new energy consumption is prominent. In order to promote the consumption of new energy in these areas, it is an important measure currently used to adopt the Ultra-High Voltage Direct Current (UHVDC) delivery strategy to transmit surplus new energy electricity to the load center. However, how to make use of the complementary characteristics of the new energy consumption space of the sending-end and receiving-end regional power grids to optimize the UHV DC lin...

Claims

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Application Information

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IPC IPC(8): H02J3/36
CPCH02J3/36Y02E60/60
Inventor 王会超栗峰叶荣波董存耿多耿天翔周昶范高锋孙檬檬
Owner CHINA ELECTRIC POWER RES INST
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