Analysis of the Influence of Atmospheric Pressure Difference on Spatial Correlation Prediction of Wind Speed

doi:10.12096/j.2096-4528.pgt.19126

Abstract

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.

Key words: wind power prediction, wind speed, atmospheric pressure, pressure difference, spatial correlation

CLC Number:

TK89

Zhengling YANG, Ruxue WAGN, Jian QIAO, Xi ZHANG, Zhao YANG, Jun ZHANG. Analysis of the Influence of Atmospheric Pressure Difference on Spatial Correlation Prediction of Wind Speed[J]. Power Generation Technology, 2020, 41(6): 617-624.

Figures/Tables 8

References 29

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影响因子	预测误差/(m/s)
影响因子	平均误差	均方根误差	平均绝对误差
风速	0.219 4	1.499 9	1.205 6
压差+温差+风向+风速	0.151 8	1.493 8	1.175 7
气温+风速	-0.089 6	1.452 8	1.107 1
气压+风速	0.132 9	1.441 9	1.124 3
压差+风速	0.074 8	1.399 5	1.120 4
气压+气温+风速	-0.005 2	1.392 0	1.155 3
压差+温差+风速	-0.165 4	1.342 9	1.061 3

影响因子	预测误差/(m/s)
影响因子	平均误差	均方根误差	平均绝对误差
风速	0.219 4	1.499 9	1.205 6
压差+温差+风向+风速	0.151 8	1.493 8	1.175 7
气温+风速	-0.089 6	1.452 8	1.107 1
气压+风速	0.132 9	1.441 9	1.124 3
压差+风速	0.074 8	1.399 5	1.120 4
气压+气温+风速	-0.005 2	1.392 0	1.155 3
压差+温差+风速	-0.165 4	1.342 9	1.061 3

区域	冬季风1	春天过渡	夏季风	秋天过渡	冬季风2	全年平均
中国	0.869 2	0.868 0	0.836 7	0.846 3	0.872 3	0.858 9
荷兰	0.946 3	0.947 8	0.949 3	0.949 1	0.953 4	0.945 9

区域	冬季风1	春天过渡	夏季风	秋天过渡	冬季风2	全年平均
中国	0.869 2	0.868 0	0.836 7	0.846 3	0.872 3	0.858 9
荷兰	0.946 3	0.947 8	0.949 3	0.949 1	0.953 4	0.945 9

区域	冬季风1	春天过渡	夏季风	秋天过渡	冬季风2	全年平均
中国	3.270 7	3.326 2	2.815 0	3.367 4	3.329 9	3.195 0
荷兰	3.222 3	2.930 3	2.729 7	2.569 1	3.148 5	2.888 4