基于节电力运行分析的蓄冷蓄热项目评价体系研究

发布时间：2018-05-15 10:51

本文选题：蓄冷蓄热项目 + 节电力　；参考：《北京交通大学》2017年硕士论文

【摘要】：近十多年来,伴随着我国经济的迅速发展:社会所需用电量直线上升。一方面,电力资源紧张,另一方面,电网负荷分布不均匀,峰谷差率较大。为缓解高峰电力紧张的局面,采用蓄冷蓄热技术进行削峰填谷一直都是业内人士所研究的热点,可是对于如何评价蓄冷蓄热系统的节能减排效果尚不够深入。目前关于复合空调系统综合性能评价的方法体系还存在评价模型参差不齐、评价指标不明确及评价方法主观性强等问题。本课题以蓄冷蓄热空调系统综合性能评价为主线,以EnergyPlus能耗模拟分析软件为依托,在总结和分析国内外研究现状的基础上,采用数据包络分析法(DEA),对评价指标的选择和评价体系的建立做了深入研究,主要工作及结论如下:首先,本文介绍了北京地区用电现状及特点,简述了北方地区冬季供暖的弊端,表明了改善电力结构、缓解供电矛盾的迫切性。然后介绍了蓄能相关政策的发展,体现了建立蓄冷蓄热项目评价体系的必要性。接着阐述了国内外蓄冷蓄热技术发展的理论研究和实践经验,以及当前评价理论与方法的研究进展,为后续蓄冷蓄热项目评价体系的建立提供了借鉴与参考。其次分别介绍了蓄冷蓄热技术的基本理论以及系统运行模式。同时介绍了本文所用的评价方法:数据包络法,主要是DEA模型的基本原理以及其中的CCR模型,并分析了 DEA模型的优点。第三章以水蓄冷空气源热泵蓄热的复合空调为例,根据蓄冷蓄热空调系统的运行原理,建立了水蓄冷空气源热泵蓄热的复合空调模型。并且运用EnergyPlus软件来构建仿真系统,随后模拟运行得到设计口冷热负荷以及蓄冷蓄热系统下的设计口逐时能耗,计算出转移电荷并根据北京地区的峰谷电价来与常规空调的运行结果作比较。第四章在参考相关蓄冷蓄热技术评价标准规范的基础上,归纳总结了评价指标的选取原则和方法,从技术、环保和经济三个角度选取了以下指标:节电力、常规能源代替率、年谷电利用率、二氧化碳减排率、静态投资回收期及净现值率。随后建立了各种指标的计算模型,并且建立了空调评价体系。为下文定量的分析不同类型的常规空调和蓄冷蓄热空调作基础。最后进行算例验证及分析,模拟了多种空调系统的运行并且进行比较,通过仿真结果计算得到转移高峰电量等变量,以此为基础计算常相关指标,并且运用数据包络法,对蓄冷蓄热项目进行评价,对具体计算模型实例进行分析,对本课题建立的综合评价体系在实际中的应用做了示意说明。
[Abstract]:In the past ten years, with the rapid development of our economy, the power consumption of our society has risen sharply. On the one hand, the power resources are tight, on the other hand, the load distribution is uneven and the peak-valley difference is large. In order to alleviate the shortage of peak electric power, it is always a hot topic for the industry to use the technology of heat storage and storage to cut the peak and fill the valley, but how to evaluate the effect of energy saving and emission reduction of the thermal storage system is not deep enough. At present, there are still some problems in the comprehensive performance evaluation method system of composite air conditioning system, such as uneven evaluation model, unclear evaluation index and strong subjectivity of evaluation method, etc. Based on the comprehensive performance evaluation of the thermal storage and air conditioning system and the EnergyPlus energy consumption simulation analysis software, this paper summarizes and analyzes the current research situation at home and abroad. The selection of evaluation indexes and the establishment of evaluation system are deeply studied by using data envelopment analysis method. The main work and conclusions are as follows: firstly, this paper introduces the current situation and characteristics of electricity consumption in Beijing area. The disadvantages of heating in winter in northern China are briefly introduced, and the urgency of improving the electric power structure and alleviating the contradiction of power supply is indicated. Then the development of energy storage policy is introduced, which reflects the necessity of establishing the evaluation system of thermal storage project. Then the theoretical research and practical experience of the development of thermal storage and storage technology at home and abroad, as well as the research progress of the current evaluation theory and method are described, which provides a reference and reference for the establishment of the evaluation system of the subsequent cold storage and heat storage project. Secondly, the basic theory and system operation mode of heat storage and storage technology are introduced respectively. At the same time, the paper introduces the evaluation method used in this paper: data envelopment method, mainly the basic principle of DEA model and the CCR model, and analyzes the advantages of DEA model. In chapter 3, a composite air conditioning model of water storage air source heat pump is established according to the operation principle of water storage air source heat pump (WAPHP) according to the operation principle of cold storage air source heat pump (WAPHP). The simulation system is constructed by using EnergyPlus software, and then the design port cooling and heat load and the design port hourly energy consumption under the system are obtained by the simulation operation. The transfer charge is calculated and compared with the operating results of conventional air conditioners according to the peak and valley electricity prices in Beijing area. In the fourth chapter, on the basis of referring to the relevant evaluation standards and specifications of the cold storage and heat storage technology, the selection principles and methods of the evaluation indexes are summarized, and the following indicators are selected from the technical, environmental and economic perspectives: saving electricity, replacing rate of conventional energy, and so on. Annual valley utilization rate, carbon dioxide emission reduction rate, static investment recovery period and net present value rate. Then the calculation model of various indexes is established, and the air-conditioning evaluation system is established. For the following quantitative analysis of different types of conventional air-conditioning and thermal storage air-conditioning as the basis. At last, the operation of various air conditioning systems is simulated and compared. The transfer peak quantity and other variables are calculated by the simulation results. Based on this, the frequently related indexes are calculated, and the data envelope method is used. This paper evaluates the thermal storage project, analyzes the concrete calculation model and illustrates the application of the comprehensive evaluation system established in this paper in practice.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB657.2;TM73

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