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Method for quantitatively evaluating feasibility of photovoltaic project

A quantitative evaluation and feasibility technology, applied in data processing applications, instruments, forecasting, etc., can solve problems such as lack of parameterization methods

Pending Publication Date: 2020-07-31
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is currently a lack of correspondingly accurate and reasonable parameterization methods

Method used

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  • Method for quantitatively evaluating feasibility of photovoltaic project
  • Method for quantitatively evaluating feasibility of photovoltaic project
  • Method for quantitatively evaluating feasibility of photovoltaic project

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Experimental program
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Embodiment Construction

[0098] The present invention will be further described below in conjunction with the accompanying drawings.

[0099] refer to Figure 1 ~ Figure 3 , a method for quantitatively evaluating the feasibility of photovoltaic projects, comprising the following steps:

[0100] The first step, sample data preparation

[0101] Based on the principle of the closest straight line distance, a photovoltaic system with the same material and temperature power coefficient as the components of the photovoltaic system to be predicted is selected as the modeling system. Collect the sampling time of the first year of the modeling system and a complete year of the site of the system to be predicted, the average wind speed, wind direction, ambient temperature, relative humidity, horizontal total irradiance, horizontal diffuse irradiance, and horizontal direct irradiance within the sampling period. Illumination, longitude, latitude, slope angle, slope azimuth, longitude of regional standard time, ...

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Abstract

The invention discloses a method for quantitatively evaluating feasibility of a photovoltaic project. The method comprises the following steps: 1, preparing sample data; 2, redundant sample preprocessing: deleting samples with zenith angle cosine values less than 0 to remove redundant samples; 3, preparing input and output variables of the model: modeling, and predicting the input variables including wind speed, incident angle of wind on an inclined plane, environment temperature, relative humidity, horizontal total irradiance, horizontal scattered irradiance, horizontal direct irradiance, inclined plane total irradiance and system operation time; wherein the output variable is system efficiency PRp in a sampling period; 4, based on input and output variables of a modeling system, settinginitial parameters of the model, training a random forest regression RFR model and adjusting parameters; and 5, parameterizing the meteorological environment station building adaptability of the photovoltaic system to be built. The method for quantitatively evaluating the feasibility of the photovoltaic project is high in accuracy, high in precision, resistant to overfitting and high in data quality robustness.

Description

technical field [0001] The invention belongs to the field of feasibility research and adaptability evaluation of photovoltaic system projects. Background technique [0002] The development trend of the feasibility evaluation method for photovoltaic system projects is to conduct quantitative and comprehensive evaluations that facilitate horizontal comparison and scientific decision-making. The station site adaptability to the meteorological environment has a significant impact on the feasibility of the photovoltaic system project. In order to achieve quantitative and comprehensive evaluation, a parameter set must be set to parameterize the station site adaptability to the meteorological environment to achieve quantitative description. Correspondingly accurate and reasonable parameterization methods are lacking today. [0003] Photovoltaic resource at the site is an important factor affecting the adaptability of station construction in meteorological environment, and its repr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/10G06Q50/06
CPCG06Q10/04G06Q10/103G06Q50/06
Inventor 潘国兵马登昌胥芳陈金鑫孙鸿飞
Owner ZHEJIANG UNIV OF TECH