基于源负荷协调的热电联产综合能源系统优化策略

Tao Long, Jinghong Zheng, Wenzhi Zhao
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引用次数: 3

摘要

本文以园区级热电联产综合能源系统为研究对象。为了实时跟踪可再生能源和负荷的波动,提出了一种考虑源和负荷两侧可调度资源的基于模型预测控制的最优调度策略。首先建立了系统中设备单元和供能网络的数学模型。然后,在模型中引入综合能源效率指标,使优化结果更加合理。结合综合能源能用效率和运行成本,采用多目标优化方法,得到日前调度方案作为基本方案。在日前计划的基础上,以综合能源能效为目标,进行了基于源荷协调的日内滚动优化。案例研究结果表明了本文所提出的策略的正确性和有效性。
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Optimization Strategy of CCHP Integrated Energy System Based on Source-Load Coordination
This paper focuses on the park-level CCHP integrated energy system (IES). In order to track the fluctuation of the renewable energy and load in real time, an optimal dispatching strategy based on Model Predictive Control is proposed, which considers the schedulable resources on both sides of the source and the load. At first, mathematical models are established for the equipment units and energy supply networks in the system. Then, the index of integrated energy exergy-efficiency is introduced into the model to make the optimization results more rational. Combing the integrated energy exergy-efficiency and the operation cost, a multi-objective optimization is applied to obtain the day-ahead dispatching scheme as the base plan. On the basis of the day-ahead plan, the intraday rolling optimization based on source-load coordination is carried out with the objective of integrated energy exergy-efficiency. The results of case studies show the correctness and effectiveness of the strategy proposed in this paper.
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