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面向可再生能源消纳的热网质–量并调优化
Temperature-Flow Coordination Optimization of Heat Network for Renewable Energy Consumption
【摘要】 为解决由综合能源系统内部强热电耦合引起的可再生能源消纳低等性能恶化问题,本文提出了基于热网在质–量并调模式下的综合能源系统运行策略。通过采用序贯性凸规划近似求解算法对优化模型进行求解,研究了多种可再生能源比例下热网调节优化对系统的影响,将所提质–量并调模式与参考模式的效果进行比较,并对气价进行了敏感性分析。结果表明,热网调节优化对综合能源系统的性能提升在中比例可再生能源渗透率时最优。此外,相比于不考虑热网调节和质调节模式,热网在质–量并调模式下运行时系统经济性分别提高了10.84%和1.58%。进一步研究表明,气价的变化对热网调节及经济性有较大影响。
【Abstract】 To solve the low renewable energy consumption caused by strong thermoelectric coupling of integrated energy system(IES), the operation strategy of IES based on the temperature-flow mode of heat network is proposed in this paper. The influence of heat network regulation optimization on the system under various renewable energy proportions was studied using a sequential convex programming approximate solution algorithm to solve the optimization model. The effect of the proposed temperature-flow regulation mode was compared with that of the reference mode. The sensitivity of gas prices was analyzed. The results indicate that the improvement effect of heat network adjustment on integrated energy system is the best under the medium proportion of renewable energy. Compared with no consideration of heat network and temperature regulation mode,the system’s economy under temperature-flow mode is improved by 10.84% and 1.58%, respectively.Further study shows that gas price variation greatly influences the heat network regulation and system’s economy.
【Key words】 integrated energy system; heat network; renewable energy consumption; temperature-flow coordination;
- 【文献出处】 工程热物理学报 ,Journal of Engineering Thermophysics , 编辑部邮箱 ,2024年11期
- 【分类号】TU83
- 【下载频次】29