储能对可再生能源并网发电的支撑作用

可再生能源发电并网对于电力系统的节能减排具有关键作用,选择合理的储能容量,并分析储能对可再生能源并网发电的支撑作用具有重要意义。从节能减排和供电可靠性角度建立具有储能装置的单母线电力系统和剩余电力系统的随机规划模型,并通过蒙特卡罗模拟算法对国外某地区的风力发电和储能联合运行系统进行模拟分析。结果表明,适度规模的储能容量不仅能有效解决可再生能源发电的功率波动问题、减小系统停电损失概率,而且能够降低系统的环境成本,但其减少程度与储能的全过程效率有关。

Support of Energy Storage for Renewable Energy Integrated into Gird

Renewable energy generation integrated into grid plays an important role in energy saving and emissions reduction of power system. It is very important to choice a reasonable storage capacity and to analyze the supporting role of energy storage for renewable energy integrated into grid. Based on energy saving & emissions reduction and power supply reliability, this paper establishes a stochastic programming model, which has a single bus power system and a remaining power system with energy storage devices. Monte Carlo simulation algorithm is used to analyze the joint operation of wind power and energy storage of a certain foreign area. The results show that appropriate energy storage capacity can not only be an effective solution to reduce the probability of power fluctuations and power outage losses in renewable energy generation, but also can reduce the environment cost of the system, which is related to the whole process efficiency of energy storage.