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毕业论文网 > 毕业论文 > 理工学类 > 电气工程及其自动化 > 正文

舰船中压直流电源在线监控系统毕业论文

 2021-03-23 22:46:33  

摘 要

在舰船上实现综合电力系统已成为现代化舰船不可避免的趋势。在舰船综合电力系统中,因直流电制具有交流电制无法媲美的优点,而且为了满足其大容量以及高密度推进电机的需求,采用中压直流供电成为舰船综合电力系统未来的发展方向。在将舰船电力系统与动力系统合二为一的情况下,使得电力系统成为舰船的关键,因此为保证舰船整个系统的安全运行,可靠连续的供电至关重要。出于此种原因,需要对舰船电源的各种运行参数进行实时监测,根据需要与其他设备进行数据传输,并在异常情况下实现报警。

本文在设计电源的监控装置时,以ARM芯片STM32F4系列为核心搭建硬件平台为重点,同时也对软件设计加以阐述。设计的电源监控系统集多种功能于一体,对连续可靠性供电方面和实现舰船的自动化水平上都具有极其显著的作用。

论文首先对舰船综合电力系统的基本原理及其发展状况进行综述,同时对应用于舰船的中压直流电源进行了分析。在此基础上,选定舰船中压直流电力网络的拓扑结构,并针对舰船中压直流电源的运行特点和要求,提出了一种对其具有在线监控功能的总体设计方案。在对系统设计整体的分析下,同时规划了整个系统的设计流程,并以此为依据开展后续具体的设计工作。

在硬件设计这一环,首先针对系统功能的需求以及舰船环境的考虑,对ARM芯片和主要电子元器件进行了选型,同时根据系统的总体框架确定了硬件平台的基本结构和硬件电路的设计。而在软件这一块,根据选定的操作系统µC/OS II体系结构,将软件分为两大块分别进行设计:驱动程序和应用程序。在程序设计时,出于方便软件开发、维护、功能扩展的需要,采用模块化的设计方法,介绍了主要功能模块的实现方法。完成硬件与软件的设计后,又针对系统提出了可靠性测试方案,主要分为功能测试和环境适应性测试。

论文最后总结了本设计课题研究工作,同时对其完善和发展进行了展望。

关键词:舰船综合电力系统,中压直流,在线监控,STM32F4

Abstract

Ship integrated power system (IPS) has become the inevitable trend of modern ships. In the integrated power system, the DC power system has the advantages that AC power cannot match, and in order to meet its large capacity and high-density propulsion motor demand, therefore, the use of medium voltage DC power has become a new direction of development. IPS combines the ship's electric power system with the power system, so the power system becomes the key of the ship. It is very important to ensure the operation of the whole system safely and power supply reliably and continuously. For this reason, it is of need for a variety of operating parameters of the power supply real-time monitoring, which transfers data to other equipment according to the need, and achieves the alarm in exceptional circumstances.

In the design of power monitoring in this paper, the ARM chip STM32F4 as the core to build hardware platform, while the advanced software programming technology is used. The power monitoring system combines a variety of functions, so it will play a very significant role in improving the safety and reliability of power supply and the automation level of ship power grid.

Firstly, the basic principle and development status of the integrated power system are reviewed, and the medium voltage DC power system is analyzed. Secondly, the paper selects the topology of the ship's medium voltage DC power network, and puts forward an overall design scheme with on-line monitoring function for the ship power supply according to the running characteristics and requirements. Then in the overall analysis of the system design, planning the entire system design process that is a basis for follow-up specific design work.

In the hardware design of this paper, the ARM chip and the main electronic components were selected, which takes the function requirements and environment in ships for consideration. Then according to the overall framework of the system, the paper determines the hardware platform, the basic structure and hardware circuit design. In the software of this paper, according to the selected operating system μC/OS II architecture, divided into driver and application. In the design of the program, it is of importance using modular design methods for the need of convenience, maintenance, and function expansion. And introduced the main function module

implementation. After the completion of hardware and software design, proposed a reliability test for the system, which mainly divided into functional testing and environmental adaptability testing.

 At the end of this paper, the research work of the design topic is summarized, and its development is look forward to.

Keywords: the integrated power system, medium voltage DC, on-line monitoring,

STM32F4

目录

第1章 绪论 1

1.1 课题背景 1

1.2 舰船综合电力系统国内外研究现状 1

1.3 论文组织结构 3

第2章 系统总体方案设计 5

2.1舰船综合电力系统结构 5

2.2 系统设计流程 6

2.3 系统功能需求分析 8

2.4 系统总体框架 8

2.5 系统操作系统选择 9

2.6 本章小结 10

第3章 系统硬件设计 11

3.1 微处理器ARM的选型 11

3.2 电压、电流及温度采集电路 11

3.2.1 传感器选型 11

3.2.2 传感器接口电路 14

3.2.3 信号调理电路 16

3.2.4 A/D电路 16

3.3 绝缘状态监测 17

3.4 LCD显示电路 18

3.5 RS485通信电路 19

3.6 电源模块 20

3.7 系统其他外围电路 21

3.8 电路板设计 21

3.9 本章小结 23

第4章 系统软件设计 24

4.1 系统软件设计思路 24

4.1.1 软件平台搭建 24

4.1.2 移植µC/OS II 24

4.2驱动程序 25

4.2.1 LCD驱动程序 25

4.2.2 A/D驱动 26

4.3 应用程序 27

4.3.1 系统软件总体框架 27

4.3.2 主程序流程 29

4.4 本章小结 30

第5章 系统可靠性测试 31

5.1 系统测试方案 31

5.2 功能测试 31

5.3 环境适应性测试 31

5.4 本章小结 33

第6章 总结与展望 34

6.1 总结 34

6.2 展望 35

参考文献 36

致谢 37

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