微网冷热电联供系统经济性优化研究
发布时间：2018-09-03 17:33
【摘要】：随着我国能源结构的不断调整，清洁能源——天然气的合理利用以及分布式能源的发展也越来越重要。微网冷热电联供是一种分布式能源联合应用方式，目前在国内正处于试点实施阶段，尚有很多问题需要进行理论研究和实施验证。 论文选取华北某地区的一座商业建筑为研究对象，对其建立微网冷热电联供系统的模型，并进行相关优化研究，，目的在于提高微网系统的能源利用率，降低污染物的排放，为微网冷热电联供系统的实施提供参考。首先，运用相关软件对所选建筑实例进行了全年的冷热电负荷预测，建立了微网联供系统主要设备的数学模型，进而优化得出了联供系统的主要配置的容量。其次，针对联供系统运行中发电量及余热量有余的情况，将储能系统引入到联供系统中实现进一步的系统优化，通过算例优化计算得出，储能系统和冰蓄冷空调的引入都能提高系统运行的经济性。此外，储能系统的引入不仅能够提高系统运行调节的灵活性和节能性，还有利于优化系统配置和运行策略。最后，分析讨论了能源价格与微网联供系统的经济性之间的关系，结果表明，微网冷热电联供是否经济可行，很大程度上取决于当地能源价格。此外，微网内分布式发电组成结构也会影响联供系统的运行和经济性。
[Abstract]:With the continuous adjustment of energy structure in China, the rational utilization of clean energy-natural gas and the development of distributed energy are becoming more and more important. Micro-grid combined cooling and heat supply is a kind of distributed energy combined application mode. At present, it is in the stage of pilot implementation in our country, and there are still many problems to be studied and verified in theory and practice. In this paper, a commercial building in a certain area of North China is selected as the research object, the model of the micro-grid combined cooling and heat supply system is established, and the related optimization research is carried out. The purpose of this paper is to improve the energy efficiency of the micro-grid system and reduce the emission of pollutants. It provides a reference for the implementation of the microgrid combined cooling and heat supply system. First of all, by using the relevant software to forecast the cooling and heat power load of the selected building, the mathematical model of the main equipment of the microgrid power supply system is established, and the capacity of the main configuration of the joint supply system is obtained. Secondly, the energy storage system is introduced into the co-supply system to realize further system optimization in view of the surplus of generating electricity and surplus heat in the operation of the co-supply system. The introduction of energy storage system and ice storage air conditioning system can improve the economy of system operation. In addition, the introduction of energy storage system can not only improve the flexibility and energy saving of system operation regulation, but also help to optimize the system configuration and operation strategy. Finally, the relationship between the energy price and the economy of the microgrid power supply system is analyzed and discussed. The results show that the economic feasibility of the micro-grid combined cooling and heat supply depends on the local energy price to a great extent. In addition, the distributed generation structure in the microgrid will also affect the operation and economy of the co-supply system.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU83
本文编号：2220690
[Abstract]:With the continuous adjustment of energy structure in China, the rational utilization of clean energy-natural gas and the development of distributed energy are becoming more and more important. Micro-grid combined cooling and heat supply is a kind of distributed energy combined application mode. At present, it is in the stage of pilot implementation in our country, and there are still many problems to be studied and verified in theory and practice. In this paper, a commercial building in a certain area of North China is selected as the research object, the model of the micro-grid combined cooling and heat supply system is established, and the related optimization research is carried out. The purpose of this paper is to improve the energy efficiency of the micro-grid system and reduce the emission of pollutants. It provides a reference for the implementation of the microgrid combined cooling and heat supply system. First of all, by using the relevant software to forecast the cooling and heat power load of the selected building, the mathematical model of the main equipment of the microgrid power supply system is established, and the capacity of the main configuration of the joint supply system is obtained. Secondly, the energy storage system is introduced into the co-supply system to realize further system optimization in view of the surplus of generating electricity and surplus heat in the operation of the co-supply system. The introduction of energy storage system and ice storage air conditioning system can improve the economy of system operation. In addition, the introduction of energy storage system can not only improve the flexibility and energy saving of system operation regulation, but also help to optimize the system configuration and operation strategy. Finally, the relationship between the energy price and the economy of the microgrid power supply system is analyzed and discussed. The results show that the economic feasibility of the micro-grid combined cooling and heat supply depends on the local energy price to a great extent. In addition, the distributed generation structure in the microgrid will also affect the operation and economy of the co-supply system.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU83
【参考文献】
相关期刊论文 前3条
1 吴耀文;马溪原;孙元章;方华亮;;微网高渗透率接入后的综合经济效益评估与分析[J];电力系统保护与控制;2012年13期
2 霍小亮;周伟国;阮应君;;楼宇三联供系统设备容量与运行策略集成优化[J];天然气工业;2009年08期
3 肖小清;阚伟民;杨允;张士杰;肖云汉;;有蓄能的联供系统超结构优化配置[J];中国电机工程学报;2012年32期
本文编号：2220690
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