校园经济论文提纲

论文题目：校园建筑光伏并网系统优化设计与运行特性研究

摘要：众所周知,随着经济的发展,建筑能耗逐年增长。为此,许多研究者采用可再生能源解决建筑能耗问题。巴基斯坦能源短缺问题更为严重,仅靠电网无法满足校园持续供电需求,特别在夏季,经常导致校园每天停电2~3个小时,当校园电网断电时,需要依赖燃油发电机组。为解决校园建筑的用电需求,本论文提出并设计了500kW的光伏并网发电系统,通过模拟分析了光伏并网系统的年运行特性,本文的研究结果对促进屋顶光伏系统在巴基斯坦校园的推广应用具有重要作用。首先,结合巴基斯坦地区的气候特征,分析了空调负荷不需考虑新风负荷的影响,通过TRNSYS软件建立了建筑冷负荷计算模型,在不考虑通风的条件下,研究了屋顶光伏组件对建筑冷负荷的影响,结果表明屋顶光伏组件能减少10.62%的建筑冷负荷。其次,结合巴基斯坦照明标准和建筑实际情况,对夏季照明、插座、空调和冬季供热负荷进行分析,确定校园建筑总电负荷和各类电负荷。10栋建筑用电总负荷700kW,其中照明及插电负荷450kW,空调负荷250kW.第三,根据校园用电负荷需求及冬夏用电负荷特点,设计了500kW屋顶光伏系统,确定了系统光伏组件、蓄电池、逆变器等设备的容量,基于HOMER软件,分析了光伏并网系统的年运行特性,最后从能源成本、系统成本和投资回收期三个方面分析了光伏系统建设的可行性。

关键词：校园建筑;光伏并网系统;优化设计;运行特性;经济性分析

学科专业：Heat,Ventilation and Airconditioning

摘要

Abstract

1 Introduction

1.1 Subject background and research significances

1.2 Research progress in the world

1.2.1 Largest scale solar PV power station in the world

1.2.2 Photovoltaic grid-connected system

1.2.3 Building integrated PV (BIPV)

1.3 Main research content

2 Effects research of PV system on building cooling loads

2.1 Cooling load calculation method for the buildings

2.1.1 Introduction of building cooling load simulation software

2.1.2 Main function modules and Settings of TRNSYS

2.1.3 Construction of TRNSYS building cooling load simulation system

2.2 Influence of PV system on building cooling loads

2.2.1 Building characteristics

2.2.2 Heat gains

2.2.3 Fresh air load

2.2.4 Building cooling loads

2.3 Summary of this chapter

3 Power load demand for campus buildings

3.1 Buildings load demand

3.2.1 Plug load

3.2.2 Lighting load

3.2.3 Cooling load

3.2 Total required power load for the campus buildings

3.3 Summary of this chapter

4 Design and operation characteristics simulation of PV grid-connected system

4.1 PV system design conditions

4.1.1 Solar GHI (global horizontal irradiance)

4.1.2 Temperature

4.1.3. Power load demand

4.2 Design of photovoltaic grid-connected system

4.2.1 Site Details

4.2.2 PV system capacity

4.2.3 Battery

4.2.4 PV inverter

4.3 Operation characteristics simulation of photovoltaic grid-connected system

4.3.1 HOMER software introduction

4.3.2 The design model of photovoltaic grid-connected system

4.3.3 Solar PV output

4.3.4 Battery output

4.3.5 Inverter output

4.3.6 Grid output

4.3.7 Electrical summary

4.4 Summary of this chapter

5 Economic analysis

5.1 Cost evaluation

5.2 Cost of Electricity (COE)

5.3 System Payback time

6 Conclusion

References

Research Projects and Publications in Master Study

Acknowledgement