考虑奖惩阶梯型碳交易和电–热转移负荷不确定性的综合能源系统规划

Integrated Energy System Planning Considering a Reward and Punishment Ladder-type Carbon Trading and Electric-thermal Transfer Load Uncertainty

近年来,随着天然气发电技术和电转气技术的不断发展,促进了电力系统和天然气系统的耦合,电力系统和天然气系统已经从独立规划与运行转变为联合规划与运行。在此背景下,对综合能源系统的协同规划问题进行研究,首先,在规划模型中引入碳交易机制,构建奖惩阶梯型碳交易成本模型,对碳排放量进行制约。然后,在此基础上,建立以综合能源系统的投资成本、运行成本和碳交易成本之和最小为目标的规划模型,并利用两阶段鲁棒优化模型应对电负荷、热负荷和电–热可转移负荷的不确定性。最后,通过算例验证该规划模型在系统低碳性和经济性方面的有效性。

In recent years, with the continuous development of natural gas power generation technology and electricity-to-gas technology, the coupling of power system and natural gas system has been promoted, and power systems and natural gas systems have been transformed from independent planning and operation to joint planning and operation. In this context, the collaborative planning problem of integrated energy systems was studied. Firstly, carbon trading mechanism was introduced into the planning model to construct a reward and punishment ladder-type carbon trading cost model to restrict carbon emissions. Then, on this basis, a planning model aiming at the minimum sum of investment cost, operating cost and carbon trading cost of the integrated energy system was established. The two-stage robust optimization model was used to deal with the uncertainty of electrical load, thermal load and electro-thermal transferable load. Finally, an example was given to verify the effectiveness of the planning model in terms of system low carbon and economy.