基于废–采耦合与混合储能的矿山综合能源系统运行优化

Optimization of the Operation of a Mine Integrated Energy System Based on Waste-mining Coupling and Hybrid Energy Storage

  • 摘要: 在“双碳”目标驱动下,矿山能源系统亟待向低碳化、高效化转型。针对废弃矿山与在采矿山能源供需时空错配的问题,提出一种基于废–采耦合与混合储能的矿山综合能源系统优化调度模型。首先,综合考虑煤层气、乏风、矿井涌水等矿区伴生能源利用,构建涵盖废弃矿井压缩空气储能、储氢系统与在采矿山热电联产、有机朗肯循环等设备的多能流耦合网络,建立“电–热–冷–气–氢”协同供能拓扑;其次,统筹计及阶梯碳交易成本、设备运维成本、风光弃用成本及外部购能成本,建立以低碳经济性最优为目标的矿山综合能源系统调度模型;最后,以山西省典型矿区为案例,设计多场景对比实验。仿真结果表明,该模型可显著提升系统风光消纳能力,推动矿山能源系统实现低碳化与经济性协同运行。

     

    Abstract: Driven by the dual-carbon goals, the mining energy system urgently needs to transition to low-carbon, high-efficiency operation. To address the spatio-temporal energy mismatch between abandoned and active mines, this study proposes an optimized scheduling model for mine integrated energy systems. Firstly, by comprehensively considering the utilization of mining area-associated energy sources, including coalbed methane, mine exhaust air, and mine water inflow, a multi-energy flow network is constructed, which integrates compressed air energy storage and hydrogen storage systems in abandoned mines, combined heat and power generation and organic Rankine cycle units. Additionally a coordinated electricity-heat-cooling-gas-hydrogen supply topology is established. Secondly, an optimal scheduling model that minimizes total cost while prioritizing low-carbon operation is proposed, which comprehensively considers tiered carbon trading costs, equipment operation and maintenance costs, renewable energy curtailment penalties, and external energy procurement costs. Finally, taking a typical mining area in Shanxi Province as a case study, simulation results demonstrate that this model significantly enhances renewable energy consumption and achieves synergistic low-carbon and economic operation.

     

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