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Spatial dispersion of wind speeds and its influence on the forecasting error of wind power in a wind farm

Journal of Modern Power Systems and Clean Energy 2016年第2期4卷 265-274页

作者： Gang MU Mao YANG Dong WANG Gangui YAN Yue QI Jilin Province Key Laboratory Northeast Dianli UniversityNo.169Changchun RoadJilin City 132012JilinPeople’s Republic of China

Big wind farms must be integrated to power *** power from big wind farms,with randomness,volatility and intermittent,will bring adverse impacts on the connected power *** precision wind power forecasting is helpful to reduce above adverse *** are two kinds of wind power *** is to forecast wind power only based on its time series *** other is to forecast wind power based on wind speeds from weather *** a big wind farm,due to its spatial scale and dynamics of wind,wind speeds at different wind turbines are obviously different,that is called wind speed spatial *** dispersion of wind speeds and its influence on the wind power forecasting errors have been studied in this *** error evaluation framework has been established to account for the errors caused by wind speed spatial dispersion.A case study of several wind farms has demonstrated that even ifthe forecasting average wind speed is accurate,the error caused by wind speed spatial dispersion cannot be ignored for the wind power forecasting of a wind farm.

关键词： Wind farm Wind speed Spatial dispersion Wind power forecasting error

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Wind power forecasting error-based dispatch method for wind farm cluster

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Journal of Modern Power Systems and Clean Energy 2013年第1期1卷 65-72页

作者： Ning CHEN Qi WANG Liangzhong YAO Lingzhi ZHU Yi TANG Fubao WU Mei CHEN Ningbo WANG China Electric Power Research Institute Nanjing 210003China Southeast University Nanjing 210096China China Electric Power Research Institute Beijing 100192China Gansu Electric Power Company Lanzhou 730050China

With the technical development of wind power forecasting,making wind power generation schedule in power systems become an inevitable *** paper proposes a new dispatch method for wind farm(WF)cluster by considering wind power forecasting errors.A probability distribution model of wind power forecasting errors and a mathematic expectation of the power shortage caused by forecasting errors are ***,the total mathematic expectation of power shortage from all WFs is *** study with respect to power dispatch in a WF cluster is conducted using forecasting and actual wind power data within 30 days from sites located at Gansu *** with the variable proportion method,the power shortage of the WF cluster caused by wind power forecasting errors is *** with the increment of wind power integrated into power systems,the method positively influences future wind power operation.

关键词： Wind power Dispatch forecasting error Probabilistic distribution

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