考虑动态氢价机制的综合能源多微网系统分布式优化调度

Distributed Optimal Dispatch of Integrated Energy Multi-microgrid System Considering Dynamic Hydrogen Price Mechanism

分属于不同主体的综合能源多微网群互补协调运行被认为是不同能量间梯级利用、深度耦合的有效手段,对于新能源的消纳及双碳目标的实现具有重要意义。首先,考虑到氢能的空间运输及需求侧碳减排,建立了计及气网掺氢的综合能源多微网系统调度模型,进一步加强不同能量间的耦合关系。其次,提出了基于电负荷时间分布及新能源消纳水平的动态氢价机制,引导氢燃料电池汽车进行有序充能,电力需求得到平抑的同时,用户也将更多地在弃能电量高的时段进行充能。然后,对综合能源多微网模型解耦,通过含自适应步长环节的正则化交替方向乘子算法对系统进行分布式求解获取全局最优运行策略。最后,算例分析结果表明,所提调度策略能够在各区域自治的前提下,提高可再生能源的消纳量81.48%,减少碳排放量35.21%,降低氢燃料电池汽车用户的充能成本1.58%。

The complementary and coordinated operation of comprehensive energy multi-microgrid groups belonging to different subjects is considered to be an effective means of cascade utilization and deep coupling between different energies,which is of great significance for the consumption of new energy and the realization of the goal of dual carbon.Firstly,considering the distant transportation of hydrogen energy and the demand-side carbon emission reduction,this paper establishes a comprehensive energy multi-microgrid system scheduling model considering the gas network hydrogen doping to further strengthen the coupling relationship between different energy sources.Secondly,a dynamic hydrogen price mechanism based on the time distribution of electric load and the level of new energy consumption is proposed to guide hydrogen fuel cell vehicles to charge in an orderly manner.While the demand for electricity is flattened,the users will also charge their vehicles more during the period of high curtailment.Then,by decoupling the comprehensive energy multi-microgrid model,the system is distributed to obtain the global optimal operation strategy by the regularized alternating direction multiplier algorithm with the adaptive step link.Finally,the analysis shows that the proposed dispatch strategy is able to increase the consumption of renewable energy by 81.48%,reduce the carbon emissions by 35.21%,and decrease the charging cost of hydrogen fuel cell vehicle users by 1.58%under the premise of regional autonomy.