Estimation of power output of photovoltaic power generation on a ship using visual information

利用视觉信息估算船舶光伏发电的功率输出

基本信息

批准号：
10650279
负责人：
YAMAMOTO Shigehiro
金额：
$ 2.24万
依托单位：
Kobe University of Mercantile Marine
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650279/
关键词：
Photovoltaic Power Generation Diesel Generator Estimation of Power Output Solar Radiation Atmospheric Transmittance Image Processing Visual Information Ship 雲視覚機能動画像

项目摘要

From the point of view of energy and environmental issues, basic researches on estimation of photovoltaic (PV) power have been carried out in order to solve the problems that occur to a PV-diesel hybrid system on a ship because of irregularity of the PV power. The results include :1.Estimation of PV power (solar irradiance) by image processing of clouds ; First, we have developed a basic method to judge weather conditions, that is "fine" or "cloudy, " in a few minutes by means of detection of clouds motion in the sky that mostly affects the PV power with machine vision. Next, a method to estimate solar irradiation over a few minutes has been considered. The method is based on analysis of the ratio of clouds that is going to cover the sun. Estimation of solar irradiation over a longer time, a few hours, has been investigated by using an all-sky camera, too. Furthermore, we have studied a basic method to discriminate between "thick" and "thin" clouds to estimate transmittance of the sunlight.2.Estimation of PV power (solar irradiance) considering the characteristics of solar irradiance ; We have devised a method to estimate daily solar irradiation by the estimation of the atmospheric transmittance from the theoretical equation of solar irradiance and observed solar irradiance. The experiment confirmed that the method precisely estimated the daily solar irradiation on more than half days in 2000.3.Control of the PV-diesel hybrid generation system ; A basic method to control the PV-diesel hybrid generation system using the short-time and long-time estimation of PV power mentioned above has been proposed.Future works are applied studies to combine above basic studies as a system.

从能源和环境问题的角度来看，已经对光伏（PV）功率进行估计的基础研究是为了解决船舶上PV柴油混合动力系统出现的问题，这是由于PV功率的不规则性。结果包括：1。通过云的图像处理来估计PV功率（太阳辐照度）；首先，我们开发了一种基本方法来判断天气状况，即“良好”或“云”，几分钟内通过发现天空中的云运动，主要影响机器视觉的光伏电源。接下来，已经考虑了几分钟估计太阳照射的方法。该方法基于对将要覆盖太阳的云之比的分析。也通过使用全套相机来研究了更长的时间（几个小时）的太阳照射的估计。此外，我们研究了一种基本方法，以区分“厚”和“细”云，以估计阳光的透射率。我们已经设计了一种通过从太阳辐照度的理论方程式和观察到的太阳辐照度来估计大气传播的方法来估计每日太阳照射的方法。该实验证实，该方法准确地估计了2000年半天以上的每日太阳辐射。已经提出了一种使用上述PV功率的短期和长期估计来控制PV柴油混合产生系统的基本方法。已应用研究工作将上述基础研究与系统相结合。