中国电机工程学报2012，Vol.32Issue(5)：131-136,6.
风速概率分布参数估计的低阶概率权重矩法
Low-order Probability-weighted Moments Method for Wind Speed Probability Distribution Parameter Estimation
潘晓春1
作者信息
- 1. 江苏省电力设计院,江苏省南京市211102
- 折叠
摘要
Abstract
It is necessary to describe the statistical properties of wind speed using three-parameter Weibull distribution for offshore wind energy resource assessment and utilization.According to the functional relation between parameters and probability-weighted moments（PWM）,the functions were fitted with the shape parameter and PWM using logistic curve.Two formulae of parameter estimation were studied out based on low-order insufficient and exceeding PWM.Accuracy test results show that these formulae had higher precision in large-scale range.Through comparative analysis with high-order PWM method for example,the author believes the low-order PWM methods in this paper are worth popularizing.关键词
三参数Weibull分布/不及概率/超过概率/低阶概率权重矩/罗吉斯蒂曲线/风能特征指标Key words
three-parameter Weibull distribution/insufficient probability/exceeding probability/low-order probability-weighted moments/logistic curve/wind energy characteristic index分类
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潘晓春..风速概率分布参数估计的低阶概率权重矩法[J].中国电机工程学报,2012,32(5):131-136,6.
