Daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation

An operation mode and new energy technology, applied in the field of daily operation mode arrangement and peak shaving based on multi-scenario new energy power generation simulation, to achieve the effect of reducing operation cost, speed and electricity

Active Publication Date: 2015-05-13
XI AN JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the current situation that the power system lacks reliable verification of the peak-shaving problem and the operation mode of the power supply investment decision-making scheme, and at the same time address the shortcomings of the existing daily operation mode verification method, introduce the equivalent power function method and enlightenment Based on the idea of ​​formula algorithm, focusing on the peak-shaving problems existing in the power system under various typical daily scenarios, a daily operation mode arrangement and peak-shaving method based on multi-scenario new energy power generation simulation is provided, which has good robustness And it is suitable for multi-type power investment decision-making verification

Method used

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  • Daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation
  • Daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation
  • Daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Embodiment 1 (function test of pumped-storage unit put into operation in basic module test and peak-shaving measures):

[0095] Wind power output and photovoltaic output are shown in Table 3:

[0096] Table 3 Wind power and photovoltaic output (unit: 10,000 kilowatts)

[0097]

[0098] The system operation is as follows:

[0099] If no peak-shaving means are adopted, the valley value of the equivalent load of the system is 3.225 million kilowatts, and the base load of the thermal power unit is 4.275 million kilowatts. It can be seen that there is a peak-shaving problem in the system and it cannot be operated, so the first peak-shaving method is used to pump water The energy storage unit is running. After the pumped storage unit is put into operation, the valley value of the equivalent load of the system becomes 4.025 million kilowatts, and the base load of the thermal power unit is 3.969 million kilowatts, thus solving the problem of peak regulation in the system, ...

Embodiment 2

[0112] Embodiment 2 (basic module test and wind abandonment function test in peak shaving measures):

[0113] Increase the wind power output in the system to 1.5 times that of Example 1, change some coal-fired power units to nuclear power units with worse regulation capabilities, and some adjustable hydropower units to run-of-the-river hydropower units that cannot be adjusted to be affected by incoming water. Test Peak shaving capability of the system under harsher regulation. Wind power output and photovoltaic output are shown in Table 7:

[0114] Table 7 Wind power and photovoltaic output (unit: 10,000 kilowatts)

[0115]

[0116]

[0117] The system operation is as follows:

[0118]If no peak-shaving means are adopted, the valley value of the equivalent load of the system is 3.061 million kilowatts, and the base load of the thermal power unit is 4.644 million-kilowatts. It can be seen that there is a peak-shaving problem in the system and it cannot be operated, so t...

Embodiment 3

[0134] Embodiment 3 (basic module test and peak-shaving measures in the abandonment flow hydroelectric unit and change thermal power unit sorting function test):

[0135] Increase the wind power output in the system to 3 times that of Example 1, change some coal-fired power units into nuclear power units with worse regulation ability, change all local small hydropower into run-of-the-river hydropower units that cannot be adjusted and affected by incoming water, and test Peak shaving capability of the system under harsher regulation. Wind power output and photovoltaic output are shown in the table below:

[0136] Table 12 Wind power and photovoltaic output (unit: 10,000 kilowatts)

[0137]

[0138]

[0139] The system operation is as follows:

[0140] If no peak-shaving means are adopted, the valley value of the equivalent load of the system is 3.370 million kilowatts, and the base load of the thermal power unit is 4.844 million-kilowatts. It can be seen that there is a...

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Abstract

The invention discloses a daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation. The method introduces equivalent energy functions into power system unit combination problems, achieves arrangement and computation directly through energy quantity by combining a heuristic algorithm, thereby reducing the computation quantity significantly, being particularly flexible and intuitive when processing power-given generator units, having greater advantages over a power energy volume balancing method and facilitating location of the operational positions of the generator units. What's more, the power energy volume balancing method is to find the load position of the generator units one by one, while the daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation can convert two or more hydroelectric generator units into an equivalent unit to rapidly find a reasonable load position and to determine whether the operational positions of the generator units can be overlapped and whether the generator units can become one equivalent unit; meanwhile, the daily operation manner arranging and peak-load regulating method based on multi-scene new energy power generation simulation avoids the situation that available water resources cannot be made full use of and achieves full utilization of all hydraulic energy, thereby reducing the electric quantity of thermal generation and reducing the operational cost.

Description

Technical field: [0001] The invention belongs to the field of unit combination problems in electric power systems, and in particular relates to a method for arranging daily operation modes and peak regulation based on multi-scenario new energy power generation simulation. Background technique: [0002] For a long time, the power system usually only pays attention to the research and verification of the economic and feasibility aspects of the power supply investment plan, but pays little attention to the operation mode of the power system and the problem of peak regulation. With the gradual depletion of fossil energy and the advent of the global energy crisis, the modern power system pays more and more attention to the development of renewable new energy such as wind energy and solar energy. With the introduction of large-scale new energy, due to the intermittence, volatility and randomness of new energy such as wind energy and solar energy, it has a great impact on the peak ...

Claims

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Application Information

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IPC IPC(8): H02J3/28
Inventor 王秀丽张文韬黄镔印永华申洪宫本辉
Owner XI AN JIAOTONG UNIV
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