基于多学科协同理论的可再生能源消纳责任权重测算方法

Research on Optimal Weight Index Calculation for Renewable Energy Applying Multidisciplinary Collaborative Optimization Theory

随着可再生能源电力消纳保障机制的不断完善,科学合理地设定各省各地区的可再生能源消纳权重是引领可再生能源电力消费长效发展的重要环节。基于多学科协同优化理论,综合考虑地区的实际网架与电网运行情况,分析具有波动性的大量可再生能源并网后对传统可控机组带来的影响,在碳排放配额实施的背景下,文章提出了可再生能源消纳责任最优权重指标测算方法,通过设立最优综合成本的系统目标函数以及不同考虑角度下的并行子学科,以系统学科与子学科循环迭代的方式寻找全局最优解,并以IEEE 118节点系统以及某省实际电网算例对所提模型和算法进行验证。

With the continuous improvement of the guarantee mechanism of renewable energy power accommodation,it is an important link to lead the long-term development of renewable energy power accommodation to scientifically and rationally set the weight of renewable energy accommodation for each province and region.Applying multidisciplinary collaborative optimization theory,the actual grid structure and grid operation in the region is comprehensively considered in this paper.The influence of large amount of volatile renewable energy on the traditional controllable generating units is analyzed.Under the background of the implementation of carbon emission quotas,a method for calculating the optimal weight index of renewable energy is proposed.By setting up the system objective function of the optimal comprehensive cost and the parallel subdisciplines under different consideration aspects,the global optimal solution is found by means of cyclic iteration of the system discipline and sub-discipline.The proposed model and algorithm are verified by an example of IEEE 118-node system and an actual power grid in a province.