Based On The Lon Fieldbus Technology Power Parameters Of Real-time Detection System

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.