由于风能的随机性以及电力系统的非线性等原因，预测风电功率时需要考虑众多的不确定因素影响。
Due to the intermittency of wind energy and the non-linearity of power system, there exist many uncertain variables which should be considered in the wind power prediction.
如果能够提前对风电功率进行准确的预测，则有利于及时调整调度计划，保证电能质量，减少系统备用容量，获得更多的经济效益和社会效益。
If wind power can be accurately forecast in advance, scheduling plan can be adjusted timely to ensure power quality, reduce system reserve capacity and acquire more economic and social benefits.
为满足电网规划的要求，风电功率预测系统不仅需要提供确切的预测值，还应该对预测值包含的风险做出合理的评估。
To meet the requirements of network planning, the forecasting system of wind power should provide exact forecasted value and make a reasonable assessment of risk which implied in forecasted values.
为了合理地利用风电，提高电力系统经济性，需要对风电场输出功率进行预测。
Prediction of the output power in a wind farm is needed as to use wind power rationally and to increase the economical efficiency of the power system.
为了合理地利用风电，提高电力系统经济性，需要对风电场输出功率进行预测。
Prediction of the output power in a wind farm is needed as to use wind power rationally and to increase the economical efficiency of the power system.
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