基于LON现场总线技术电力参数实时检测系统的研究与实现

【作者】 张爱强；

【导师】 曾育星；

【作者基本信息】 广东工业大学 ， 机械电子工程， 2001， 硕士

【摘要】 随着微电子技术、计算机技术和通信技术的发展，电力自动化技术也得到了迅速发展。近几年来，现场总线技术的迅速发展以及在许多领域中的广泛应用，使两者的结合成为必然的趋势。本文正是在这种形势下，结合一个电力系统方面的课题，进行对基于LON现场总线技术电力参数实时检测的研究，并且最终从硬件以及软件上开发了一个具体的RTU（Remote Terminal Unit）系统，实现了基于LON网的电力参数实时检测。 本文首先介绍了在电力系统中电力参数实时检测的意义以及国内外的现状与发展动态，各种现场总线性能的比较以及本课题所做的工作。 本文第二章详细介绍了LonWorks现场总线技术。LON（Local OperatingNetWorks）总线是美国Echelon公司1991年推出的一种局部操作网络，它已经成为当今最为流行的现场总线之一，并广泛应用于许多领域。将LonWorks技术应用于电力自动化是发展的必然趋势。 傅立叶交流算法是目前用得较多的一种交流算法。本文第三章首先从理论上介绍了傅立叶交流算法，以及各种电力参数的计算方法，然后结合课题的实际情况给出了各电力参数的实际计算公式。 本文的第四章介绍了系统硬件的组成、系统软件的结构及相应部分内容。对A/D采样、数据计算及处理、数据通信等方面做了较详细的介绍；在本章的最后，介绍了系统中Neuron C通信程序的编制。 第五章介绍了系统与LON网络的连接。包括用LonWorks工具对网络节点设备进行配置以及与LON现场总线的连接过程，最后介绍了网络数据的测试方法及手段。 最后，本文进行了研究总结，并进行了展望。更多还原

【Abstract】 With development of micro-electronics, computer and communication technology. power-automatization technology has also been developed greatly. During these years, the quick development of Filed-bus and its wide application in many fields have made it a trend that power-automatization will be combined with Field-bus. In this thesis, some research work is carried out about the power-parameter real-time detecting based on LON Field-bus, and an applicable RTU module developed is discussed.In chapter one, the significance and research current states of international and domestic about power-parameter detecting in power system is introduced. Some important Field-bus are compared, and the research work done is introduced.In chapter two, LonWorks Field-bus technology is introduced in detail, which is one of the most popular Field-bus currently, issued by Echelon company in 1991.The Fourierist AC-Arithmetic is the popular AC-Arithmetic at present and is introduced in Chapter 3. The calculation theoiy and method of different powerparameters are also discussed in this chapter.In Chapter 4, the following contents are discussed: the hardware and software structure of system, the A/D sampling, the compute and handle of the data, data communication. and the programming of Neuron C communication.In the fifth chapter, it is discussed how the system is connected with LON, including the configuration of the network-node by LonWorks tool and the procedure of connecting LON Field-bus. The way and means of testing the network-data is discussed also.The last chapter is the summary of this thesis and the prospect of the field in the ftiture.更多还原