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Distributed photovoltaic system capacity estimation method

A distributed photovoltaic and photovoltaic system technology, applied in the field of new energy, can solve the problems of low efficiency, unsatisfactory detection effect, and high consumption of manpower, material resources and financial resources, and achieve the effect of ensuring the safety of electricity consumption

Active Publication Date: 2019-10-01
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, power grid companies mainly use manual field surveys to detect whether users have installed or expanded distributed photovoltaics privately. The above method will not only consume a lot of manpower, material resources and financial resources, but also the detection effect is not ideal, the efficiency is low, and there are certain limitations.

Method used

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  • Distributed photovoltaic system capacity estimation method
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  • Distributed photovoltaic system capacity estimation method

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Embodiment 1

[0033] figure 1 It is a flowchart of a method for estimating the capacity of a distributed photovoltaic system according to an embodiment of the present invention.

[0034] Such as figure 1 As shown, the distributed photovoltaic system capacity estimation method includes the following steps:

[0035] S1, select one from multiple photovoltaic systems with known photovoltaic capacity as a standard photovoltaic system.

[0036] Specifically, one user's photovoltaic system can be selected as a standard photovoltaic system from some users whose photovoltaic capacity is known, and the output power of any one user's photovoltaic system at a certain time in a certain day can be multiplied by its actual installed photovoltaic capacity multiplied by the standard photovoltaic system. The output power of the system at the corresponding moment is approximated. The selection steps of the standard photovoltaic system can be: calculate the Euclidean distance of photovoltaic output between each ph...

Embodiment 2

[0075] Further, the present invention also provides a computer-readable storage medium.

[0076] In the embodiment of the present invention, a computer program is stored on a computer-readable storage medium, and the computer program is executed by a processor to realize the above-mentioned distributed photovoltaic system capacity estimation method.

[0077] The computer-readable storage medium of the embodiment of the present invention can accurately estimate the capacity of the distributed photovoltaic system installed by the user when the computer program corresponding to the foregoing method for estimating the capacity of the distributed photovoltaic system stored thereon is executed by the processor, In turn, it can not only help government departments to monitor whether users install distributed photovoltaic systems or expand their capacity privately, but also help protect users' electricity safety, promote the healthy development of distributed photovoltaic power generation, ...

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Abstract

The invention discloses a distributed photovoltaic system capacity estimation method. The method comprises the following steps: selecting one of a plurality of photovoltaic systems with known photovoltaic capacities as a standard photovoltaic system; obtaining historical output power of the standard photovoltaic system, and classifying weather types according to the historical output power; obtaining daily net load power of the photovoltaic system to be estimated under the two weather types and historical output power of the standard photovoltaic system under the two weather types, and obtaining optimal matching date indexes corresponding to the two weather types according to the daily net load power and the historical output power; performing feature extraction on the daily net load powerof the photovoltaic system to be estimated under the two weather types and the historical output power of the standard photovoltaic system under the two weather types based on the feature extractionto obtain feature parameters; and carrying out photovoltaic capacity estimation according to the characteristic parameters by using a support vector regression model. According to the method, the capacity of the distributed photovoltaic system installed by a user can be accurately estimated, healthy development in the field of distributed photovoltaic power generation is facilitated, and safe operation of a power system is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of new energy, and in particular to a method for estimating the capacity of a distributed photovoltaic system. Background technique [0002] As an important part of new energy power generation, photovoltaic power generation has developed rapidly in recent years because of its low-carbon, environmentally friendly, clean, and renewable characteristics. Generally, photovoltaic power generation can be divided into centralized power generation and distributed power generation. Compared with centralized photovoltaic power generation, distributed photovoltaic power generation follows the principles of adapting measures to local conditions, decentralized layout, and nearby utilization, which can make fuller use of local solar resources. According to statistics from the National Energy Administration, my country's distributed photovoltaic installed capacity will reach 60GW in 2020. However, in the context of such a rapi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06K9/62G06N20/10
CPCG06Q10/0639G06Q50/06G06N20/10G06F18/23G06F18/241
Inventor 王飞葛鑫鑫李康平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)