户用光伏储能系统的能源管理装置

发布时间：2018-03-15 18:43

本文选题：户用光伏　切入点：能源管理　出处：《安徽理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：户用光伏储能系统中,如何实现对户用光伏电池、储能电池、户用负载和交流电网的运行状态及主要参数的监测、控制和保护,如何协调好户用光伏电池、储能电池、户用负载和交流电网之间能量的合理调配,研究户用光伏储能系统的能源管理装置具有重要意义。本文阐述课题研究背景、研究目的与研究意义,对国内外能源管理装置的发展及研究现状做了具体分析。阐述能源管理装置的功能,控制方案及工作原理,确定能源管理装置的总体架构。在硬件平台设计上,选用ARM11系列的S3C6410作为核心控制器,硬件平台电路设计主要包括电源接口电路、USB接口电路、通信接口电路、SD Card接口电路、LCD电容触摸屏接口电路。对于能源管理装置软件平台,本文采用嵌入式linux操作系统和Qt作为软件开发平台,进行宿主机平台搭建及嵌入式linux操作系统移植,选用SQlite作为能源管理装置的后台数据库,使能源管理装置具有数据存储的功能。能源管理装置采用的通信传输方式有RS232、RS485、SX1278及以太网。其中RS232主要实现能源管理装置与户用负载参数的数据通信;RS485主要实现能源管理装置与外界环境参数、户用光伏电池参数及交流电网参数的数据通信;SX1278主要实现能源管理装置与储能电池参数的数据通信;以太网主要实现能源管理装置与上位机的数据通信。选用Qt软件设计能源管理装置应用程序及人机界面,能源管理装置应用程序交叉编译移植到硬件平台,在实验室搭建能源管理装置硬件测试平台,进行功能测试。测试表明,满足系统设计要求。该能源管理装置具有体积小、功耗低、操作方便等特点,具有很好的市场应用前景。
[Abstract]:In the household photovoltaic energy storage system, how to monitor, control and protect the operating state and main parameters of household photovoltaic cells, energy storage cells, household loads and AC power grids, how to coordinate household photovoltaic cells and energy storage cells, It is of great significance to study the energy management device of household photovoltaic energy storage system due to the rational allocation of energy between household load and AC power grid. The development and research status of energy management devices at home and abroad are analyzed in detail. The functions, control schemes and working principles of energy management devices are expounded, and the overall structure of energy management devices is determined. The S3C6410 of ARM11 series is selected as the core controller. The circuit design of hardware platform mainly includes power supply interface circuit and USB interface circuit, communication interface circuit and SD Card interface circuit and LCD capacitive touch screen interface circuit. In this paper, the embedded linux operating system and QT are used as the software development platform, the host platform is built and the embedded linux operating system is transplanted, and SQlite is chosen as the backstage database of the energy management device. The energy management device has the function of data storage. The communication mode used in the energy management device is RS232, RS485, SX1278 and Ethernet. Among them, RS232 mainly realizes the data communication between energy management device and household load parameter. RS485 mainly realizes the energy management device. Source management device and external environmental parameters, The data communication between energy management device and energy storage battery parameters is mainly realized in the data communication of household photovoltaic cell parameters and AC grid parameters. Ethernet mainly realizes the data communication between the energy management device and the upper computer. The QT software is used to design the energy management device application program and the man-machine interface, and the energy management device application program is cross-compiled and transplanted to the hardware platform. The hardware test platform of the energy management device is built in the laboratory and the function test is carried out. The test results show that the energy management device meets the requirements of the system design. The energy management device has the characteristics of small volume, low power consumption, convenient operation and so on. It has a good market application prospect.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM615;TP311.52

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