考虑设备全生命周期成本的工厂多能微网经济调度策略

发布时间：2018-09-11 16:48

【摘要】：工厂是供能结构复杂的典型能源系统,生产过程中存在多能流耦合,优化空间大,是多能源系统的重点发展区域。同时,工厂中含大量的能源设备,各种能源设备的全生命周期成本会对工厂的用能策略产生较大影响。为此,文章针对同时考虑光伏、风机、储能、冰蓄冷空调、中央空调等多种能源设备的工厂多能微网模型,提出了一种考虑设备全生命周期成本的工厂多能微网经济调度策略。在考虑设备全生命周期成本的基础上,以工厂整体的运行费用最低为目标,建立工厂日前经济优化调度模型,并采用混合整数线性规划方法进行求解。算例结果表明,所提的优化策略使得多种能源进行协同互补,减小了能源转换和存储时的能量损耗,提升了能源利用效率。同时,在价格信号的激励下,充分发挥了需求侧设备的调节潜力,促进了可再生能源的消纳和电网的削峰填谷,并优化了能源消费结构。由于将设备的全生命周期成本考虑在内,在工程实际中具有更好的推广价值。
[Abstract]:The plant is a typical energy system with complex energy supply structure. There is a multi-energy flow coupling in the production process, and the optimization space is large, which is the key development area of the multi-energy system. At the same time, there are a lot of energy equipments in the plant, and the whole life cycle cost of all kinds of energy equipment will have a great impact on the energy use strategy of the plant. To solve this problem, this paper presents an economic scheduling strategy of plant multi-energy microgrid considering the whole life cycle cost of the equipment, aiming at the multi-energy microgrid model which takes into account the energy equipment, such as photovoltaic, fan, energy storage, ice storage air conditioning, central air conditioning and so on. On the basis of considering the whole life cycle cost of equipment and taking the minimum operation cost of the whole plant as the goal, the economic optimal scheduling model of the factory before the day is established, and the mixed integer linear programming method is used to solve the problem. The simulation results show that the proposed optimization strategy can make multiple energy sources cooperate and complement each other, reduce the energy loss in energy conversion and storage, and improve the efficiency of energy utilization. At the same time, under the stimulation of price signal, the adjustment potential of demand-side equipment is fully brought into play, which promotes the absorption of renewable energy and the peak and valley reduction of power grid, and optimizes the energy consumption structure. Because the whole life cycle cost of the equipment is taken into account, it has better promotion value in engineering practice.
【作者单位】：国网江苏省电力公司苏州供电公司;浙江大学电气工程学院;
【基金】：国家重点研发计划项目(2016YFB0901300)~~
【分类号】：TM73

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