But wind power is uncertain, sometimes providing too much electricity and sometimes too little.
不过，风能的获取是不稳定的——有时风力提供的电力会过多，有时则会不足。
Battles throws all of its past projects to the wind and embraces the uncertain and glorious future.
Battles抛却过去，去拥抱未知却灿烂的将来。
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.
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。
Wind turbine systems have strong nonlinear multivariable with many uncertain factors and disturbances.
风力发电机组是复杂多变量非线性系统，具有不确定性和多干扰等特点。
Since uncertain conditions of bridge structure and the wind circumstance should be accounted for, occurrence of flutter and aerostatic instability is therefor uncertain.
由于桥梁本身及其所处风环境的不确定性，桥梁颤振与气静力失稳的发生也是不确定的。
In this paper, considering many uncertain factors and disturbances of wind power generating systems, taking maximum wind power tracking as active power control target.
本文针对风力发电机组的不确定性及多干扰的问题，以追踪最大风能作为有功功率控制目标。
Based on the multi - scenario probability method, the uncertain factors, such as wind farm power output, load change and economy, are described by scenario analysis and probability calculation.
应用多场景概率的方法，将风电场的输出功率和在电网规划中涉及到的负荷变化、经济等不确定性因素，以场景分析和概率计算的方式加以描述。
Based on the multi - scenario probability method, the uncertain factors, such as wind farm power output, load change and economy, are described by scenario analysis and probability calculation.
应用多场景概率的方法，将风电场的输出功率和在电网规划中涉及到的负荷变化、经济等不确定性因素，以场景分析和概率计算的方式加以描述。
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