基于MSP430的三相智能电能表设计研究

发布时间：2018-02-12 02:51

本文关键词： 智能电能表 MSP430 电能测量数据采集实时时钟　出处：《山东大学》2016年硕士论文　论文类型：学位论文

【摘要】：智能电网具有集成度高、经济性好、效率高、资源结构优化、兼容性好、自愈能力强等特征,其在全球范围内一经提出,获得了世界各国的欢迎,许多国家把智能电网的建设作为当前发展的目标之一。智能电能表作为电力公司用电侧管理过程中的关键设备,在实时准确计量电量的同时也是实现数据互联共享及智能调度的关键,在整个智能电网建设中具有举足轻重的作用。智能电表技术的研究将进一步加快智能电网向智能化迈进的步伐,同时对建设集成度高、经济性好、效率高、资源结构优化、兼容性好、自愈能力强的智能电网起到了积极的影响。传统的机电式电能表由于设计原理上的缺陷无法满足智能电网在数据互联共享、结构优化等方面的需求,随着微电子技术的发展,基于微处理器技术设计的智能电表为实现智能电网能源互联提供了技术基础。本文在对我国智能电网及智能电表发展现状进行深入研究分析的基础上,提出了具有智能计量、数据互联共享等特点智能三相电能表的硬件和软件系统设计方案。完成的主要工作内容有：1.介绍了课题研究的背景和意义,结合当前智能电网的建设综述了智能电能表技术研究的现状及未来的发展方向,通过对智能电能表测量、计量算法的研究,阐述了智能电能表计算有功无功功率、计算电压电流RMS值、计算视在功率的常用算法。2.深入分析了合国家电网公司对智能电能表功能的需求,并按功能需求设计实现硬件各单元模块,分为供电电源单元模块、数据处理单元模块、内部存储单元模块、通信接口单元模块和时钟单元模块等,通过对各模块单元电路的分析和设计,实现了既符合国家电网公司对智能电能表功能需求又满足电表生产企业低成本高性价比的智能电能表。3.软件方面,设计并实现了智能电能表软件系统,其中包括人机交互模块、数据交互通信模块、测量计量模块、数据存储单元、时间单元等众多智能电能表关键模块。4.对所实现的基于MSP430的三相智能电能表进行了功能及性能测试,实验结果表明该电能表满足国家电网公司对智能电能表精度要求,功能增减灵活,并满足计量自动化系统对智能电能表的可操作性要求,设计的可扩展性适应智能电能表市场未来发展的需求。5.就智能电能表在智能电网中的诸多应用做了简要的阐述,其中以智能电能表作为关键设备设计了智能电网中最常用的防窃电系统。系统在多地得到了很好的应用,为遏制及打击电力犯罪提供了重要的数据支撑。本文所实现的智能电能表已经投入运行,系统运行稳定,具有良好的性能。智能电能表性价比高,具有较高的经济效益,为企业创造丰厚利润的同时增加了社会就业。
[Abstract]:Smart grid has the characteristics of high integration, good economy, high efficiency, optimized resource structure, good compatibility and strong self-healing ability. Many countries regard the construction of smart grid as one of the goals of the current development. Intelligent watt-hour meter is the key equipment in the process of power company's power side management. The key to realize data sharing and intelligent scheduling is to measure the quantity of electricity accurately in real time. The research of smart meter technology will further accelerate the pace of smart grid to intelligence, at the same time, it will improve the construction integration, economy, efficiency and resource structure optimization. The smart grid, which has good compatibility and strong self-healing ability, has a positive effect. Traditional electromechanical watt-hour meters can not meet the demand of smart grid in data sharing, structure optimization and so on because of the defects in design principle. With the development of microelectronic technology, intelligent meter based on microprocessor technology provides a technical foundation for the realization of smart grid energy interconnection. In this paper, the development status of smart grid and smart meter in China is deeply studied and analyzed. The design scheme of hardware and software system of intelligent three-phase watt-hour meter with intelligent metering and data sharing is put forward. The main work accomplished is: 1.The background and significance of the research are introduced. Combined with the construction of smart grid, the present situation and future development direction of intelligent watt-hour meter technology are summarized. Through the research of intelligent watt-hour meter measurement and metering algorithm, the calculation of active and reactive power by intelligent watt-hour meter is expounded. Calculate voltage and current RMS value, calculate apparent power commonly used algorithm .2.An in-depth analysis of the State Grid Company to intelligent watt-hour meter function requirements, and according to the functional requirements of the design and implementation of hardware modules, divided into power supply unit modules, Data processing unit module, internal storage unit module, communication interface unit module and clock unit module, etc., through the analysis and design of each module unit circuit, The intelligent watt-hour meter, which not only meets the functional requirements of smart watt-hour meter in State Grid Company, but also meets the low cost and high performance-price ratio of the meter manufacturing enterprise, is realized. In software, the software system of intelligent watt-hour meter is designed and implemented, which includes man-machine interaction module. Data interactive communication module, measurement module, data storage unit, time unit and many other key modules of intelligent watt-hour meter. 4. The function and performance of the three-phase intelligent watt-hour meter based on MSP430 are tested. The experimental results show that the watt-hour meter can meet the precision requirement of smart watt-hour meter of the State Grid Company, the function increase or decrease is flexible, and meet the operational requirement of the automatic metering system for the intelligent watt-hour meter. The expandability of the design adapts to the demand of the future development of smart watt-hour meter market. 5. The application of smart watt-hour meter in smart grid is briefly described. Among them, the intelligent watt-hour meter is used as the key equipment to design the most commonly used anti-theft system in the smart grid. The system has been applied in many fields. The intelligent watt-hour meter realized in this paper has been put into operation, the system runs stably and has good performance. The intelligent watt-hour meter has high performance-price ratio and high economic benefit. For enterprises to create fat profits at the same time increase social employment.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM933.4

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