基于区域供能的多能源系统模型研究分析
发布时间：2018-08-08 18:50
【摘要】：随着我国人口的增加以及人们生活水平的提高,用户对冷、热、电方面的需求也在持续增长,节能和环保成了今后发展的趋势。此外,由于我国人均资源相对短缺,可再生能源发挥着越来越重要的作用。本文探讨了可再生能源与传统能源结合的供能方式,并在企业用能的基础上,引入了储能策略,同时对储能实例进行分析验证。首先,确定商务区用能的特点和用能结构,对用能方面涉及的能源系统进行分析,对分布式供能系统、太阳能系统以及地热能系统的耦合特性进行研究分析,形成联合供能系统。其次,建立多能源模型。考虑到企业在生产过程有着多重目标,如满足供能的需求,降低成本,减少温室气体和污染物的排放等。根据目标的重要程度,通过多目标规划的方法建立多目标能源模型,并通过LINGO软件进行最优化求解。同时,实际用能过程中的可再生能源的不稳定性也加以考虑。再次,短期内用户负荷的变化会引起产能设备功率的波动,降低运行的效率。本文建立基于用户需求响应的连续时间模型,通过ORIGIN软件对用能曲线进行拟合,确定目标函数使产能设备功率和储能设备储能量的总波动性最小化。同时研究企业的最优储能策略,并结合实例进行分析。最后,对多能源系统的节能特性、可再生能源渗透率、环境影响性以及经济性几个方面进行评价分析。同时,结合用户典型日的用能方案,对多能源系统的效率和经济性进行验证分析。此外,对外界条件变化对模型最优解的影响也加以考虑,更细致、全面的研究不同因素对模型造成的影响。
[Abstract]:With the increase of population and the improvement of people's living standard, the demand of users for cold, heat and electricity is also increasing. Energy saving and environmental protection become the trend of development in the future. In addition, due to the relative shortage of per capita resources in China, renewable energy is playing an increasingly important role. In this paper, the energy supply mode of the combination of renewable energy and traditional energy is discussed. On the basis of energy consumption in enterprises, the energy storage strategy is introduced, and an example of energy storage is analyzed and verified. First of all, determine the characteristics and structure of energy use in the business district, analyze the energy systems involved in energy use, study and analyze the coupling characteristics of distributed energy supply system, solar energy system and geothermal energy system. Form a joint energy supply system. Secondly, establish multi-energy model. Considering that enterprises have many goals in the production process, such as meeting the demand of energy supply, reducing the cost, reducing the emission of greenhouse gases and pollutants, etc. According to the importance of the target, the multi-objective energy model is established by multi-objective programming, and the optimization is solved by LINGO software. At the same time, the instability of renewable energy in the process of actual energy use is also taken into account. Thirdly, the change of user load in short term will cause the fluctuation of capacity equipment power and reduce the efficiency of operation. In this paper, a continuous time model based on user demand response is established, and the energy use curve is fitted by ORIGIN software, and the objective function is determined to minimize the total fluctuation of capacity equipment power and energy storage capacity. At the same time, the optimal energy storage strategy of enterprises is studied, and an example is analyzed. Finally, the energy saving characteristics, renewable energy permeability, environmental impact and economy of multi-energy system are evaluated and analyzed. At the same time, the efficiency and economy of multi-energy system are verified and analyzed with the typical daily energy use scheme. In addition, the influence of the change of external conditions on the optimal solution of the model is also taken into account, and the effects of different factors on the model are studied in detail and comprehensively.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TK01
[Abstract]:With the increase of population and the improvement of people's living standard, the demand of users for cold, heat and electricity is also increasing. Energy saving and environmental protection become the trend of development in the future. In addition, due to the relative shortage of per capita resources in China, renewable energy is playing an increasingly important role. In this paper, the energy supply mode of the combination of renewable energy and traditional energy is discussed. On the basis of energy consumption in enterprises, the energy storage strategy is introduced, and an example of energy storage is analyzed and verified. First of all, determine the characteristics and structure of energy use in the business district, analyze the energy systems involved in energy use, study and analyze the coupling characteristics of distributed energy supply system, solar energy system and geothermal energy system. Form a joint energy supply system. Secondly, establish multi-energy model. Considering that enterprises have many goals in the production process, such as meeting the demand of energy supply, reducing the cost, reducing the emission of greenhouse gases and pollutants, etc. According to the importance of the target, the multi-objective energy model is established by multi-objective programming, and the optimization is solved by LINGO software. At the same time, the instability of renewable energy in the process of actual energy use is also taken into account. Thirdly, the change of user load in short term will cause the fluctuation of capacity equipment power and reduce the efficiency of operation. In this paper, a continuous time model based on user demand response is established, and the energy use curve is fitted by ORIGIN software, and the objective function is determined to minimize the total fluctuation of capacity equipment power and energy storage capacity. At the same time, the optimal energy storage strategy of enterprises is studied, and an example is analyzed. Finally, the energy saving characteristics, renewable energy permeability, environmental impact and economy of multi-energy system are evaluated and analyzed. At the same time, the efficiency and economy of multi-energy system are verified and analyzed with the typical daily energy use scheme. In addition, the influence of the change of external conditions on the optimal solution of the model is also taken into account, and the effects of different factors on the model are studied in detail and comprehensively.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TK01
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