考虑储能的工业园区综合能源系统日前优化调度

Operation Scheduling Optimization of Integrated-energy System in Industrial Park in Consideration of Energy Storage

城市能源互联网系统通过互补和能量梯级利用,实现能源资源的有效整合,在能源生产和消费革命中起着重要作用。城市能源互联网建设的关键之一是建立城市工业园区综合能源系统。因此,围绕一个存在电、热、冷、天然气等多种能流并服务于生产生活负荷统筹的工业园区综合能源系统开展了建模,结合系统储能特性,提出了日前运行优化调度模型。该模型综合考虑了供能管网和储能水罐储能特性及其对经济效益的影响,针对涉及生产生活用能的工业园区进行优化,同时对供能管网储能能力进行量化。这一技术被应用于某实际工业园区,进行冬季供暖工况运行调度优化。储热水罐的出力优化增加了系统设备组合的灵活性,而热网热惯性的考虑稳定了机组出力。优化方案表现出更好的经济性和输出稳定性,单日节省运行成本1 445元。

Through complementary and cascade utilization of energy, urban energy internet system can effectively integrate energy resources, which plays an important role in the revolution of energy production and consumption. One of the keys to the construction of the urban energy internet is to establish the comprehensive energy system of the urban industrial park. In this paper, a comprehensive energy system of an industrial park with electricity, heat, cold, natural gas, and other energy flows is modeled to serve the overall planning of production and living load. Combined with the energy storage of the system, a day-ahead operation optimization scheduling model is proposed. The energy storage of energy supply networks and energy storage tanks and their impact on economic benefits are comprehensively considered in the model. The industrial park which relates to production and living energy is optimized, and the energy storage capacity of energy supply networks is quantified. This technology has been applied to an industrial park to optimize the operation of heating conditions in winter. The output optimization of the heat storage tank increases the flexibility of equipment combination in the system, and the thermal inertia of heat supply networks stabilizes the unit output. The optimized plan shows better economy and output stability, saving 1 445 yuan of operation cost per day.