大气压的差值对风速空间相关性预测的影响分析
摘要:风速空间相关性预报是风电功率预测的有效方法。为提高风速空间相关性预报的效果,文中分析了动力气象学中大气运动的基本方程,可知气压梯度力、地球引力以及摩擦力是大气运动的基本动力。在短期、超短期风电功率预测的时间尺度里,地球引力、摩擦力通常可以看作已知量或不变量,因此气压梯度力是引起风的首要动力。定量分析了我国东南沿海发展空间相关性预报的价值,认为我国季风区的空间相关性明显超过欧美,且东南沿海的近海风能明显高于陆地,特别适合空间相关性预测,采用大气压的空间相关性预测是我国季风区风电功率预测的可靠基础方法之一。
Abstract:Spatial correlation prediction of wind speed is an effective method for wind power prediction. In order to improve the effect of spatial correlation prediction of wind speed, the basic equations of atmospheric motion in dynamic meteorology were analyzed, and pressure gradient force, Earth gravity force and the friction force are the basic forces of atmospheric motion. In the time scale of short-term and super-short-term wind power prediction, gravity and friction of the earth can usually be regarded as known quantities or invariants, so pressure gradient force is the primary force causing wind. The value of development spatial correlation and prediction was quantitative analyzed on the southeastern coast of China. It shows that the spatial correlation of monsoon region in China is obviously higher than that in Europe and America, and the southeast coast of offshore wind power are significantly higher than the land, especially suitable for spatial correlation prediction. The spatial correlation of atmospheric pressure prediction is one of the reliable basics methods for prediction of monsoon wind power in China.
标题:大气压的差值对风速空间相关性预测的影响分析
title:Analysis of the Influence of Atmospheric Pressure Difference on Spatial Correlation Prediction of Wind Speed
作者:杨正瓴, 王如雪, 乔健, 张玺, 杨钊, 张军
authors:Zhengling YANG, Ruxue WAGN, Jian QIAO, Xi ZHANG, Zhao YANG, Jun ZHANG
关键词:风电功率预测,风速,气压,压差,空间相关性,
keywords:wind power prediction,wind speed,atmospheric pressure,pressure difference,spatial correlation,
发表日期:2020-12-31
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