远程费控电能表的设计与应用研究

发布时间：2018-02-21 22:56

本文关键词： 远程费控电能表计量控制处理器信息采集 RS-485通信　出处：《华南理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：新世纪之后,国家针对电力行业发展实施了重要改革,在以国家电网及其下属电网公司为核心架构的基础上重新划分了电力行业的职能,从而在一定程度上促进了电网结构的进一步优化,较好地解决了我国长期以来一直存在的电力发展落后于经济发展的局面。近年来,电力市场针对客户端持续进行政策升级与改革,阶梯电价等一系列政策的出台,让我国电力市场呈现出越来越丰富的电力使用模式,电力全覆盖、信息全采集、费用全控制的目标已经成为了我国电力市场可持续发展的最根本目标,电力市场中对于电能计量和收费的需求便有了更高的需求,尽管近年来中国的大部分省份中都陆续改变了传统的手工抄表、计费的模式,开始使用了智能化的费控电能表来增强电能计量与收费的水平,但从现状来看,国内的大多数远程费控电能表的使用过程中仍然存在着一些问题,特别是其电力数据采集的稳定性较低、网络通信故障频发等问题较为突出,再加上费用控制策略方面的不完善,导致国内当前的远程费控电能表的使用精确性和便捷性并不高。鉴于此,本文将从远程费控电能表的设计与应用视角,进一步研究提升数据采集与网络通信稳定性、完善费用控制策略等方面的路径和方法。论文首先就国内外有关远程费控电能表的研究现状进行综述,并深入研究了远程费控电能表的关键技术,关键技术的切入点包括有预付费控制技术、双向通信技术、安全及可靠性技术等,奠定全文研究的理论基础。在此基础上,论文对远程费控电能表的硬件原理及设计展开研究,在对远程费控电能表基本功能和参数指标进行描述的条件下,针对各主要硬件模块进行了设计,包括信号处理模块、计量模块、控制模块、外围电路、电源模块等,整个设计过程中选择了ADI公司的ADE7878计量芯片,完成高精度多功能电能计量,选择了TI公司的TMS320F28035控制处理器进行整体控制;之后,论文进一步从软件设计的视角进行研究,在明确主程序设计流程和目标的基础上,展开了DSP子程序、计量子程序、通信子程序、显示子程序设计。最后,分别展开对远程费控电能表硬件部分试验和软件部分试验,得到试验结果并进行分析,并对该电能表的应用效果展开评价。本文的研究,对于我国大范围使用远程费控电能表,并很好地实现客户用电信息采集自动化、电能计量智能化、使用收费便捷化提供了实践的技术手段,从而在很大程度上提升供电企业在市场客户端工作的效率,降低企业运营过程中的成本。
[Abstract]:After the new century, the state has carried out important reforms aimed at the development of the power industry, and on the basis of the core structure of the State Grid and its subordinate grid companies, the functions of the power industry have been reclassified. Thus, to some extent, it promotes the further optimization of the power network structure, and solves the situation that the electric power development in China has been lagging behind the economic development for a long time. The electric power market continuously carries on the policy upgrade and the reform to the customer end, the ladder electricity price and so on a series of policies, let our country's electricity market present more and more abundant electricity use pattern, the electric power full coverage, the information collection, The goal of total cost control has become the most fundamental goal of the sustainable development of our country's electricity market, and the demand for electricity metering and charging in the electricity market has increased. Although in recent years most provinces in China have gradually changed the traditional manual meter reading, accounting mode, began to use intelligent fee control watt-hour meter to enhance the level of electric energy metering and charging, but from the current situation, There are still some problems in the use of most remote fee controlled watt-hour meters in China, especially the low stability of power data acquisition and frequent network communication faults. In addition, the imperfection of the cost control strategy leads to the low accuracy and convenience of using the remote fee controlled watt-hour meter in China. In view of this, this paper will design and apply the remote fee control watt-hour meter from the angle of view of the design and application of the remote fee-controlled watt-hour meter. Further research on improving the stability of data acquisition and network communication, improving the cost control strategy and other aspects of the path and methods. First of all, this paper summarizes the current research situation of remote fee control watt-hour meter at home and abroad. And the key technology of remote fee control watt-hour meter is deeply studied. The breakthrough point of the key technology includes prepaid control technology, two-way communication technology, security and reliability technology and so on. In this paper, the hardware principle and design of remote fee controlled watt-hour meter are studied. Under the condition of describing the basic function and parameter index of remote fee controlled watt-hour meter, the main hardware modules, including signal processing module, are designed. Measurement module, control module, peripheral circuit, power supply module and so on. In the whole design process, the ADE7878 metering chip of ADI Company is selected to complete the high-precision multi-function electric energy measurement, and the TI company's TMS320F28035 control processor is selected to carry on the overall control. This paper further studies from the perspective of software design, on the basis of defining the main program design flow and objectives, develops the DSP subroutine, metrological subroutine, communication subroutine, display subroutine design. Finally, The hardware part test and software part test of remote fee control watt-hour meter are carried out, the test results are obtained and analyzed, and the application effect of this meter is evaluated. It also provides practical technical means to realize the automation of customer power information collection, intelligent energy metering, and convenient use of fees, thus greatly improving the efficiency of power supply enterprises working in the market client. Reduce the cost of the operation of the enterprise.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM933.4

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