光伏储能及其充放电及其计算

光伏储能及其充放电及其计算

摘要

随着全球经济社会的不断发展，能源消费也相应的持续增长，化石能源越来越突显出它的稀缺性。在这种化石能源供应日趋紧张的背景下，很有必要大规模利用和开发可再生能源。太阳能作为取之不尽、清洁干净的资源成为人类开发研究的热点，并已经取得了显著的效果。作为分布式发电的理想能源，独立型光伏发电系统解决了一些地方用电难的问题，已经明显提高了人民生活水平。本文讨论光伏发电系统的发展状况以及应用前景，对独立型光伏发电系统进行研究与设计。

本文以基于储能系统的独立型光伏发电系统为研究对象，阐述了独立型光伏发电的基本原理及其发展趋势。对光伏系统的最大功率追踪控制方法(MPPT)进行了分析，通过对草坪灯的设计，进一步分析光伏发电系统。文章给出了光伏系统的容量设计计算，其中包括光伏电池组板功率计算，蓄电池容量及充放电计算。通过计算系统容量并考虑经济方面的因素，选定适合系统的各个元件。

本文通过对太阳能草坪灯的研究设计，实现光伏储能及其充放电，进一步肯定光伏发电在现代社会能源战略中的重要地位。

关键词：光伏发电最大功率跟踪MPPT 储能系统充放电

Abstract

As the global economic and social development, the continued growth of energy consumption and the corresponding fossil energy become more and more highlights its scarcity. Under the background of this kind of fossil energy supply has become increasingly tense, it is necessary to large-scale use and development of renewable energy. Solar energy as an inexhaustible, clean resources become a hotspot of research on human development, and has achieved significant effect. As an ideal energy, distributed generation photovoltaic generating system solves the independent model, the difficulty of some local electricity, has significantly improved people's living standard. This article discusses the development status and application prospect of photovoltaic power generation system, the independent model photovoltaic power generation system research and design.

In this paper, based on the energy storage system of the independent model of photovoltaic power generation system as the research object, this paper expounds the independent model, the basic principle of the photovoltaic power generation and its development trend. For photovoltaic system was analyzed, and the Maximum power tracking (MPPT) control method, through to the lawn lamp design, further analysis of photovoltaic power generation systems. Capacity of the photovoltaic system design calculation is analyzed, including photovoltaic battery board power calculation, battery capacity, calculation of charge and discharge. Through the calculation of system capacity and to consider economic factors, selected is suitable for the various system components.

In this paper, through the study of solar energy lawn lamp design, realization of photovoltaic energy storage and its charge and discharge, further sure photovoltaic energy strategy the important position in modern society.

Keywords：photovoltaic (pv) generation; Maximum power tracking MPPT; Energy storage system; Charge and discharge

目录

摘要.................................................................................................................. I Abstract.......................................................................................................... I I 第一章引言. (1)

1.1背景与意义 (1)

1.2发展前景与面临的问题 (4)

1.3 本文研究的主要内容 (6)

第二章光伏发电原理与基本特性分析 (7)

2.1 光伏电池 (7)

2.1.1 光伏电池的种类 (7)

2.1.2硅太阳电池的结构及工作原理 (8)

2.2光伏电池的结构与特性分析 (10)

2.2.1光伏电池等效电路 (10)

2.2.2光伏电池的电气特性 (11)

2.3 环境因素对太阳能电池输出特性的影响 (12)

2.4光伏阵列最大功率跟踪 (14)

2.4.1最大功率跟踪控制原理 (14)

2.4.2 最大功率跟踪控制方法 (14)

2.5 本章小结 (17)

第三章储能系统的分析设计 (18)

3.1 蓄电池 (18)

3.1.1蓄电池的分类与应用 (18)

3.1.2酸蓄电池工作原理及其SOC 估计及其容量的计算 (21)

3.1.3 光伏系统对蓄电池性能要求分析 (24)

3.2蓄电池充放电特性分析 (26)

3.3 蓄电池超级电容混合储能系统 (27)

3.3.1 混合储能性能分析 (27)

3.3.2 储能系统结构 (29)

3.4本章小结 (29)

第四章光伏储能及充放电控制系统的设计 (30)

4.1控制电路总体设计方案 (30)

4.2系统电路设计 (31)

4.2.1系统主电路设计 (31)

4.2.2 变换电路设计 (32)

4.3系统容量的设计 (34)

4.3.1光伏电池的选用 (35)

4.3.2蓄电池容量的选择 (37)

4.3.3蓄电池充放电计算 (38)

4.3.4 Boost电路参数计算 (38)