嵌入式智能电网能效终端的研究与实现

发布时间：2018-06-14 19:10

本文选题：嵌入式 + 采集器　；参考：《电子科技大学》2014年硕士论文

【摘要】：智能电网的发展已成为世界各国电力行业应对未来挑战的共同选择,未来智能电网要向着更加灵活、更加清洁、更加安全、更加经济等性能发展。以此为目标,对电网中各用电单位电量数据的采集、电能质量的监测便成了研究的重点。对电量数据的采集也不再仅限于作为电费征收的依据,而是为了更清楚的了解企业用电情况的实时变化,通过对电量数据和电能质量数据的分析,指导各用电企业更好的做好节能减排,合理优化资源配置的工作。本文以上述情况为出发点,根据合作单位的要求,在分析了数据采集器、集中器和电能质量分析仪等设备的情况下,在这些设备的基础上实现一款便携式的能效终端。其功能之一是基于RS-485通信方式的智能电表的电量数据采集;功能之二是通过DSP芯片进行电能数据处理从而监测电能质量。课题主要研究工作概括如下。首先是搭建硬件设备平台。通过对片上资源的多方比较,本项目选取三星公司的S3C6410芯片作为核心控制器,以其片上资源为依托,扩展外围的电源、复位、存储、显示和通信电路,为功能的实现打下坚实的基础。在电能质量监测方面,研究谐波的各种测量方法,在DSP芯片上使用FFT算法完成对采集的电能信号的处理。其次进行操作系统的移植,就系统而言,采用开源、可裁剪且可配置的Linux-3.0.1作为整机的操作系统,交叉编译启动引导程序Bootloader,移植内核并修改相关驱动程序,使用Busybox制作根文件系统,实现系统的正常启动和运行。接下来为实现友好的操作界面,移植Qtopia桌面环境,研究在此框架下应用程序的开发,为核心应用的编写做好准备。通过查阅和分析电力通讯规约和电能数据定义,在集成开发环境QT Creator中编写运行于Qtopia框架之上的应用程序,实现读取和显示智能电表数据和电能参数的功能。
[Abstract]:The development of smart grid has become the common choice of the power industry in the world to deal with the future challenges. The future smart grid should be more flexible, cleaner, safer, more economical and other performance development. For this purpose, the monitoring of power quality has become the focus of the research on the data collection of electric power unit in power grid. The collection of electricity quantity data is no longer limited to the basis of electricity charge collection, but in order to better understand the real-time changes of power consumption situation in enterprises, through the analysis of electricity quantity data and power quality data, Guide the power enterprises to do better energy saving and emission reduction, and optimize the allocation of resources. Based on the above situation and according to the requirements of the cooperation unit, this paper analyzes the equipments such as data collector, concentrator and power quality analyzer, and realizes a portable energy efficiency terminal on the basis of these equipments. One of its functions is to collect electric energy data of intelligent meter based on RS-485 communication mode, and the second is to process power data through DSP chip to monitor power quality. The main research work is summarized as follows. The first is to build hardware equipment platform. By comparing the on-chip resources, this project selects Samsung S3C6410 chip as the core controller, based on its on-chip resources, expanding the peripheral power supply, reset, storage, display and communication circuit, Lay a solid foundation for the realization of the function. In the aspect of power quality monitoring, all kinds of harmonic measurement methods are studied. FFT algorithm is used to process the collected power signal on DSP chip. Secondly, the operating system is transplanted. As far as the system is concerned, the open source, customizable and configurable Linux-3.0.1 is used as the whole operating system, the boot program Bootloaderis cross-compiled, the kernel is transplanted and the relevant drivers are modified. Busybox is used to make the root file system to realize the normal start and operation of the system. Then in order to realize the friendly operation interface and transplant the Qtopia desktop environment, this paper studies the development of the application program under this framework, and prepares for the writing of the core application. By consulting and analyzing the power communication protocol and the definition of power data, the application program running on Qtopia framework is written in QT Creator, which can read and display the data and parameters of intelligent meter.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM76

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