一个良好的监控系统对于监控光伏并网发电系统的电气参数和及时处理紧急情况至关重要。本论文源于实际项目研发，主要完成了并网光伏系统基于ARM的人机交互监控系统的开发。实现了对电网电压、电流等电气参数的实时监控，并实现对逆变器的开机/停机以及运行参数的控制。66227

监控系统硬件采用LPC2132作为MCU，使用了320*240的FTF显示模块，采用RS-485串行通信并用ADM257E将系统电源和RS-485收发器的电源隔离；采用M25PE20铁电芯片作为存储器。

监控系统软件架构设计为前后台系统。综合运用面向对象以及模块化的编程方法，实现多级菜单的显示与操作；设计并实现了与下位机的通信，从下位机获取实时电气参数并将控制参数传递给下位机；完成了M25PE20铁电芯片的读写驱动和RTC(实时时钟)的设置与显示。

经调试，该监控系统满足对光伏发电系统的监控功能要求，具有界面友好，操作方便等优点。

毕业论文关键字：光伏逆变系统、监控系统、ARM、LCD显示、串口通信

毕业设计说明书（论文）外文摘要

Title  a Monitor Designed for PV System Based on ARM

Abstract

A good monitor system is necessary for PV system to monitor  electrical parameters and deal with emergencies .This thesis which designs a monitor for PV system based on ARM relies on an engineering project.With the monitor,real time information such as grid voltage,grid current can be got easily.Besides that,the monitor has the function of starting/stopping the PV invertor and setting running parameters.

The hardware uses LPC2132 as MCU and 320*240 TFT display module,it uses RS-485 communication with ADM257E as isolation.A M25PE20 IC is used as memory.

The software structure is foreground and background system. Different programming skills are used to develop menu display and key operation program,A communication program is developed to realize communication to DSP,which can get electrical parameters in time and send command to DSP.Memory write and read is developed ,so as to RTC display and setting.

Through testing of the monitor system, it can satisfy the need of PV system and it has the advantage of friendly interface and easy-operation.

Keywords  PV system monitor,monitor,ARM,LCD，serial communication

目   次  

第一章 绪论 1

1.1 选题背景及意义 1

1.2 嵌入式技术及应用 2

1.3 ARM微处理器 2

1.4 主要工作及结构安排 3

1.5 本章小结 4

第二章 监控系统的总体设计 5

2.1 光伏并网逆变器监控系统需求分析 5

2.2 光伏并网逆变器监控系统硬件总体设计 5

2.3 光伏并网逆变器监控系统软件方案设计 7

2.4 本章小结 9

第三章 监控系统的硬件设计 10

3.1 ARM主电路单元 10

3.2 液晶显示电路 11

3.3 复位电路 12

3.4 电源电路 13

3.5 按键电路 14

3.6 ARM与DSP的通讯接口 15

3.7 外部2Mbit页擦除串行铁电存储电路