基于风速随机性的风储系统并网优化模型

An Optimization Model for Hybrid Wind Energy Storage System Based on Wind Speed Probability Distribution

针对储能系统能够对能量起到时间迁移作用,风储联合运行系统得到了广泛的关注。基于风电功率概率分布特征,建立了一个以风储系统的收益最大化为目标函数的概率并网模型。利用风速Weibull函数,推导出了储能系统功率在不同概率参数和不同并网方式下的概率分布函数。根据概率论区间估计方法,对风储系统中储能系统容量进行了计算和确定。最后,通过仿真软件,对储能容量确定方法和系统概率并网模型进行仿真,分析了不同概率参数和不同并网方式对储能容量和系统模型的影响,同时,验证了该模型和方法的可行性和正确性。

In view of the time migration effect of energy storage system on energy,wind energy storage combined operation system has been widely concerned.Based on the probability distribution characteristics of wind power,a probabilistic grid connected model is established with the maximum revenue of wind energy storage system as the objective function.Based on the Weibull function of wind speed,the probability distribution function of energy storage system power under different probability parameters and different grid connected modes is derived.According to the method of the interval estimation,the capacity of the energy storage system in wind energy storage system was calculated and determined.Finally,through the simulation software,the energy storage capacity determination method and system probabilistic grid connection model are simulated,and the influence of different probabilistic parameters and different grid connection modes on the energy storage capacity and system model is analyzed.At the same time,the feasibility and correctness of the model and method are verified.