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A method for quantitative analysis of intermittent energy synergies based on time domain

A synergistic effect and quantitative analysis technology, applied in resources, data processing applications, instruments, etc., can solve problems such as hidden dangers of industrial and agricultural production accidents, power system output power fluctuations, etc.

Active Publication Date: 2019-01-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0002] In a complex power system containing a variety of new energy sources, due to the differences in resource characteristics, geographical environment, climate and other factors of different types of new energy electric fields, when they are incorporated into the system, the overall output power characteristics will affect each other. The fluctuation of output power will bring different hidden dangers to industrial and agricultural production

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  • A method for quantitative analysis of intermittent energy synergies based on time domain
  • A method for quantitative analysis of intermittent energy synergies based on time domain
  • A method for quantitative analysis of intermittent energy synergies based on time domain

Examples

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Embodiment

[0080] Example, synergistic effect of wind power and photovoltaic power generation

[0081] The synergistic effects of wind power and photovoltaic power generation on different time scales are analyzed from the characteristics of annual and monthly fluctuations, daily fluctuations, and short-term fluctuations.

[0082] (1) Complementarity of monthly output: The output of wind farms fluctuates greatly in different months, and the average power of the month with the largest output can be several times higher than that of the month with the lowest output; for photovoltaic output, the output level of each month fluctuates little.

[0083] The average output of photovoltaics in Hainan is relatively high from May to October, such as figure 1 Shown is the monthly average output change curve of major wind farms and photovoltaic power stations in Hainan. It can be seen that the output of wind farms fluctuates greatly in different months, and the average power of the month with the larg...

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Abstract

The invention discloses a method for quantitatively analyzing intermittent energy synergistic effect based on a time domain, and belongs to the technical field of new energy power-generation grid-connection. The method comprises the following steps: analyzing intermittent energy long-term synergistic effect from two time scales of years-months and days based on related coefficients; determining an intermittent energy daily output fluctuation characteristic classification method based on fuzzy classification; computing two intermittent energy synergistic effect indexes: the intermittent energy synergistic effect related coefficient and an intermittent energy synergistic effect fluctuation index; analyzing intermittent energy years-months and days scale synergistic effect according to the intermittent energy synergistic effect related coefficient; and analyzing intermittent energy short-term synergistic effect based on the intermittent energy synergistic effect fluctuation index. The synergistic effects of the intermittent energies are analyzed from the time scales in different levels to determine the relevance and complementary between the intermittent energies, and the theoretical basis and guidance are provided for the power network planning containing a high permeability intermittent energy regional power grid.

Description

technical field [0001] The invention belongs to the technical field of new energy synergy, and in particular relates to a method for quantitatively analyzing the synergistic effect of intermittent energy based on time domain. Background technique [0002] In a complex power system containing a variety of new energy sources, due to the differences in resource characteristics, geographical environment, climate and other factors of different types of new energy electric fields, when they are incorporated into the system, the overall output power characteristics will affect each other. The fluctuation of output power will bring different hidden dangers to industrial and agricultural production. [0003] The characteristic of reduced overall volatility is called the synergy effect. In fact, the synergy effect is the cluster effect of different resource types. The analysis method of synergy effect is similar to cluster effect. In view of the fact that wind power develops most ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 赵冬梅尹颢涵王建峰张虹金小明张东辉魏国清胡剑琛祁永福吴峰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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