阶梯式碳交易的城市多能系统能量互补优化调度策略

Energy Complementation Optimal Scheduling Strategy of Urban Multi-energy System with Stepped Carbon Trading

引入城市能源服务中心(urban energy service center,UESC)作为供能和价格引导枢纽,构建了含典型功能的城市多能微网系统集群结构及其阶梯式碳交易机制模型。提出了一种城市多能系统双层优化调度策略,其上层为最小化UESC的运营成本,下层考虑城市多功能区域集群间的能量互济,采用交替方向乘子法求解综合能源系统(integrated energy system,IES)集群的分布式调度,协调各IES之间的功率交互。最后,利用IEEE-33节点电网和32节点热网耦合系统,并通过4类典型场景验证所提模型与算法的有效性,优化城市多能系统间能量的互济互补,减少系统总运行成本,降低系统碳排放,提高系统运行的经济性、灵活性和韧性。

The urban energy service center(UESC)is introduced as energy supply and price guidance hub,and an urban multi-energy system structure with typical functional microgrids and a stepped carbon trading model are constructed.Moreover,a bi-layer optimal scheduling strategy of urban multi-energy system is proposed.The upper layer is to minimize the operating cost of UESC.In the lower layer,alternating direction method of multipliers is used to solve the distributed scheduling of integrated energy system(IES)clusters and coordinate the power interaction among them.Finally,IEEE-33-node power grid and 32-node thermal network coupling system are used to verify the effectiveness of the proposed model and algorithm through four typical scenarios.Thereby,the energy complementation between urban multi-energy system can be optimized,the total operating cost and the carbon emission are reduced,and the economy,flexibility and resilience of the system operation are improved.