基于嵌入式操作系统的智能开关柜操控装置

发布时间：2018-07-09 23:44

本文选题：开关柜 + 智能操控　；参考：《厦门理工学院》2016年硕士论文

【摘要】：开关柜作为电力系统中重要的控制保护设备,是智能电网一次设备的关键组成部分,在供配电系统及智能电网中均起着至关重要的作用。随着智能电网的建设与发展,国家电网公司对相关电力设备智能化提出了具体的原则和要求,人们对电力系统智能化及稳定性的要求越来越高。传统开关柜常用电磁式机械结构实现控制、配电等功能,在操作控制方面存在诸多不足,将开关柜升级改造,开发并研制高效环保的智能化开关柜设备对实现智能配电网将发挥重要作用。本课题主要研制和开发一种配备于电力系统中压开关柜的新型智能操控装置。整个装置的设计以多个功能模块组建而成,根据用户需求,配置相应功能模块,论文中主要包括电量和电能质量采集模块、电动地刀和底盘车操控模块以及开关柜内部温湿度采集三大模块,集测量、控制与通信等功能于一体,功能模块将通过现场高速总线集合于主控模块上,实现装置的可配置性与灵活性。在具体的分析研究中:首先,根据装置的需求、功能要求、技术指标以及设计原则,给出了总体设计方案;其次,针对操控装置主控模块进行具体的设计与实现:选择嵌入式Linux操作系统作为开发平台,以AM3354处理器为核心,完成数据的读取、处理、通信及显示等任务;对Qt进行开发与移植并设计友好的人机交互GUI界面;由MODBUS通信协议实现各功能模块与主控模块间的相互通信;再次,分别对三个功能模块进行软硬件分析与设计,并分别进行相关的试验与检测;最后,通过以太网建立操控装置与上位机的通信,实时监测、采集数据并完成相应的控制指令。测试结果表明:研制的新型智能开关柜操控装置可以对开关柜的实际运行情况进行监视、测量、采集数据及控制。电能质量采集模块能够实时采集电压电流值,并确保在精度内;电动控制模块能较好的实现电动控制底盘车和地刀及分合闸断路器;温湿度测控模块能实时采集温湿度数据并作出反馈控制。为重要参数的变化趋势提供分析依据,为智能电网状态检修提供即时运行信息,提高设备的利用率,能够实现预期的功能,从而验证了新型智能开关柜操控装置的可行性。
[Abstract]:As an important control and protection equipment in power system, switchgear is a key component of primary equipment of smart grid, and plays an important role in power supply and distribution system and smart grid. With the construction and development of smart grid, the State Grid Company has put forward specific principles and requirements for intelligent power equipment. The traditional switchgear commonly used electromagnetic mechanical structure to realize the control, distribution and other functions, there are many shortcomings in the operation control, the switchgear will be upgraded, The development and development of intelligent switchgear with high efficiency and environmental protection will play an important role in the realization of intelligent distribution network. This paper mainly studies and develops a new intelligent control device equipped with medium voltage switchgear in power system. The design of the whole device is composed of several functional modules. According to the needs of users, the corresponding functional modules are configured. The paper mainly includes the collection module of electricity quantity and power quality. The control module of electric ground knife and chassis car and the temperature and humidity collection module of the switchgear are integrated with the functions of measurement, control and communication. The function modules will be assembled on the main control module through the field high-speed bus. The device is configurable and flexible. In the specific analysis and research: first, according to the requirements of the device, functional requirements, technical indicators and design principles, the overall design scheme is given. The main control module of the controller is designed and implemented: the embedded Linux operating system is selected as the development platform, and the AM3354 processor is the core to complete the tasks of data reading, processing, communication and display. Develop and transplant QT and design friendly man-machine interactive GUI interface; realize the communication between each functional module and the main control module by Modbus protocol; thirdly, analyze and design the software and hardware of the three functional modules respectively. Finally, the communication between the control device and the host computer is established through Ethernet, real-time monitoring, data acquisition and corresponding control instructions are completed. The test results show that the new intelligent switchgear control device can monitor, measure, collect data and control the actual operation of the switchgear. The power quality acquisition module can collect the voltage and current value in real time and ensure the accuracy; the electric control module can better realize the electric control of the chassis car, the ground knife and the switch circuit breaker; The temperature and humidity measurement and control module can collect temperature and humidity data in real time and make feedback control. It provides an analysis basis for the change trend of important parameters, provides instant operation information for smart grid condition maintenance, improves the utilization ratio of equipment, and can realize the expected function, thus validating the feasibility of the new type intelligent switchgear control device.
【学位授予单位】：厦门理工学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM591

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