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Large photovoltaic power generation base discarding power assessment based on benchmark photovoltaic component

A technology of photovoltaic modules and curtailment power, which is applied in the field of curtailment power evaluation in large-scale photovoltaic power generation bases, can solve the problems of inaccurate curtailment power and low simultaneous rate, and achieve the effect of accurate calculation of curtailment power

Inactive Publication Date: 2013-09-25
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, for million-kilowatt-level photovoltaic power generation bases, the actual output of each photovoltaic power station is generally low, so calculations using this method will generally result in inaccurate calculations of abandoned photovoltaic power

Method used

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  • Large photovoltaic power generation base discarding power assessment based on benchmark photovoltaic component
  • Large photovoltaic power generation base discarding power assessment based on benchmark photovoltaic component
  • Large photovoltaic power generation base discarding power assessment based on benchmark photovoltaic component

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Embodiment Construction

[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0028] A method for evaluating the amount of abandoned light in large-scale photovoltaic power generation bases based on benchmark photovoltaic modules, including the following steps:

[0029] Step 1: Obtain the operating status of all photovoltaic modules of the photovoltaic power station and the real-time output of each module through the real-time information of photovoltaic power generation uploaded by the photovoltaic power station every 5 minutes, and calculate the average output coefficient of all benchmark photovoltaic modules of the photovoltaic power station every 5 minutes:

[0030]

[0031] in, is the actual output of the i-th benchmark photovoltaic ...

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Abstract

The invention discloses a large photovoltaic power generation base discarding power assessment method based on a benchmark photovoltaic component, which comprises the following steps: the average force-voltage factor of all the benchmark photovoltaic components of a photovoltaic power station is calculated in every 5 minutes; the real-time boot capacity of the wind power plant is calculated in every 5 minutes; theory output of the photovoltaic component is calculated in every 5 minutes; discarding power of every 5 minutes is obtained; the discarding power of the whole photovoltaic power generation base of a certain period is obtained; the discarding power of the whole photovoltaic power generation base is obtained through calculating the electric quantity of each photovoltaic power station in the photovoltaic power generation base. The method has the advantage of calculating the discarding power accurately, and has the characteristic of easiness and convenience for operation.

Description

technical field [0001] The present invention relates to the field of photovoltaic power generation, in particular to a method for evaluating the amount of abandoned light in large-scale photovoltaic power generation bases based on benchmark photovoltaic modules. Background technique [0002] Photovoltaic power station abandonment electricity refers to the electricity that can be generated by photovoltaic power stations but cannot be generated due to factors such as grid transmission channels and safe operation needs. The amount of electricity emitted. [0003] Light abandonment is a common phenomenon in the process of large-scale development of photovoltaic power generation, which is very similar to water abandonment in the process of hydropower generation. Large-scale photovoltaic power generation bases cover a wide area and generally include multiple photovoltaic power stations or photovoltaic power station groups. Due to factors such as the transmission limit of the powe...

Claims

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Application Information

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IPC IPC(8): G06F19/00H02N6/00G06Q50/06
CPCY02P90/82
Inventor 汪宁渤路亮马彦宏何世恩刘光途王小勇赵龙丁坤王定美周强周识远李津马明张金平黄蓉吕清泉张建美
Owner STATE GRID CORP OF CHINA
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