风光储联合发电运行技术研究

Study on Operation Technology of Wind-PV-Energy Storage Combined Power Generation

随着能源需求的日益增长和新能源的快速发展,利用风能、太阳能的发电技术已经逐步成熟,且在电网中的渗透率也在不断提高。为弥补风能、太阳能发电所带来的功率不稳定、电能质量低等问题,有必要对风能、太阳能、储能联合发电进行深入研究。文中依据简单平抑方法、考虑一定约束的平抑方法、考虑功率预测与人工智能的平抑方法对储能的平抑控制策略进行了归纳总结。在储能平抑风光波动的研究中滤波算法是最为常见的方法,加入一定的约束会使平抑效果更佳,储能平抑配合精准的预测使整个系统更加平滑。多储能技术混合可以发挥各储能技术优越性。加入储能装置的风光储互补系统可以有效降低原风光互补系统对电网的不利影响。可以在更高程度上平滑风光发电系统的输出特性,增加电网对可再生能源的吸收接纳程度,取得良好的经济和社会效益。

With the increasing demand for energy and the rapid development of new energy,the technology of generating electricity by wind and solar energy has gradually matured,and the penetration rate in the power grid is also increasing.In order to remedy problems of unstable power and low power quality caused by wind and solar power generation,it is necessary to study the combined power generation of wind power,solar energy and energy storage.In this paper,the strategy of energy storage inhibition control is summarized according to the simple suppression method,the suppression method considering certain constraints,the suppression method considering power prediction and artificial intelligence.In the study of energy storage to tame scenery fluctuation filtering algorithm is the most common method,adding certain constraints can make smooth effect better,and energy storage to tame with accurate prediction can make the system smoother.Multi-energy storage technology can give full play to the advantages of energy storage technology.The wind energy storage complementary system with the energy storage device can effectively reduce the adverse effect of the original wind energy complementary system on the power grid.It can smooth the output characteristics of the wind power generation system to a higher degree,increase the acceptance of renewable energy to the power grid,and achieve good economic and social benefits.