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1、0广东工业大学华立学院(填所在学院名)本科毕业设计（论文）填公选课课堂论文小型水电站综合自动化系统设计与研究论文题目 小型水电站综合自动化系统设计与研究系 部 机械电气学部 专 业 电气工程及其自动化 班 级 填 14标准化 X班 09 电气 5班 学 号 填所在标准化班序号 12030905035 学生姓名 谢晓珊 指导教师 丁延林 1摘要我国水利资源十分丰富，水电发展十分迅速，但是其中相当一部分小水电站仍然存在运行时间长、设计保守、装置落后等问题，严重影响了小水电站的运行可靠性与经济效益，进而影响小水电站建设成本的回收。随着计算机及电子信息技术的迅猛发展，技术先进、性能可靠地微机综合自动化
2、系统开始得到了广泛的应用，因此，研制一套能满足中小型水电站计算机监控需求的系统以提高水电站技术和管理水平，具有重要的实际意义。水电站计算机监控系统是一门设计自动控制原理、计算机网络基础、数字图像处理等学科，并能对水电站进行实时监控和管理的重要技术。论文依据自动发电的控制要求，对典型的二级水电站计算机监控系统进行了结构的配置和方案的设计。系统采用分层分布式的结构体系将整个监控系统分成电站层、现地控制层两层。同时，依据小型水电站自身的特点，在设计时对电站控制层主控设备和现地设备单元之间的通讯，以及保护测控装置与机组见的通信采用 CAN 总线网络；其他智能设备与机组间的通信均采用 RS485/RS2
3、32 网络。现地控制层的设计中采用了以 EDCS-7340 和PLC 为核心，并辅之于各种自动化仪表，来完成对本地机组的控制和调节。上位机的监控画面的设计选用功能强大的工控组态软件组态王 6.55 通用版，完成了对水电站监控系统的各种监控界面设计等功能。关键词：小型水电站，计算机监控， 现地控制单元,可编程逻辑控制器2AbstractThe water resource of China is very rich, the development of hydropower is also comparatively rapid. However, there are some problem
4、s in many small hydro-electric power stations, such as the running time is long, the design is conservative, the installation is backward. All of these problems made serious impact on economic efficiency. Besides, with the rapid development of computer and electronic information technology, advanced
5、 and reliable synthetical automation system has been applied widely. Therefore, design and research a suit of computer monitoring and control system which can meet the demand of small and medium-sized hydropower to improve the technology and management level has an important practical significance.T
6、he hydropower station computer monitoring and control system is such a kind of technology which involves automatic control theory, computer network, digital image processing etc, and which can also realize the real-time monitoring and management of hydropower station. According to the automatic gene
7、ration control requirement of hydropower station, the paper finished computer supervisory control system design of a secondly small typical hydropower station .Through adopting the hierarchical and distributed control system structure, the hydropower station control system can be divided into centra
8、lize control layer and local control unit layer. According to the characteristic of small hydropower station, we adopt CAN bus network in the design of the communication between the power station control layer master equipment and the local master control unit, and in the measurement and control dev
9、ices with the local control unit. While in other intelligent devices we adopt the traditional RS485/RS232 network. In the design of local control unit, we adopt EDCS-7340 and PLC, complemented by a variety of automated instrumentation to realize the local control unit control and adjusting. In the d
10、esign of the supervisory computer section, we adopts the powerful industrial control configuration software-Kingview6.55 universal edition to complete hydropower station monitoring system monitoring interface design and other functions.3Keywords: Small Hydropower Station, Computer Supervisory Contro
11、l System,Local Control Unit, Programmable Logic Controller4目录1 绪论 .11.1 水电站自动化技术发展 .11.2 水电站综合自动化系统的意义及应用 .21.3 水电站计算机监控系统的任务 .31.4 本课题的目的和内容 .41.5 小结 .52 小型水电站计算机监控系统总体设计 .62.1 设计的概述 .62.1.1 某二级小水电站的基本情况 .62.1.2 小型水电站自动化控制系统设计要求 .72.1.3 小型水电站计算机监控系统结构 .82.2 水电站计算机监控系统的组成 .92.2.1 基础层 .102.2.2 机组现地单元（LCU）的结构和功能 .102.2.3 机组现地单元中 PLC 控制系统设计 .112.2.4 电站层的监控部分设计 .122.2.5 电站保护部分的设计 .122.3 水电站
