The Design And Development Of Urban Distribution Automation System Based On GPRS

The development of modern city requires the continuous development and improvement of city distribution automation system. With the development of wireless communication technology, distribution automation technology and computer network technology, more and more wireless communication systems are used as a way of data transmission in power industry. Especially, distribution automation system based on GPRS technique, which is playing a tremendous role in practical application, has become a hot issue in the development of distribution power network.According to the requirements of distribution automation system for communication system and the comparison among several kinds of actual communication techniques adopted by distribution automation system, a new solution of distribution automation system based on GPRS technique is proposed in this thesis.First of all, the interrelated concepts of distribution automation system, network architecture of GPRS and data transmission principle have been discussed. With the introduction of the technical characteristics of GPRS, the feasibility of GPRS technique applied in distribution automation system is analyzed briefly from the aspects of transmission ability, reliability and economical efficiency. By comparison among four ways of network based on GPRS, the one that using enterprise public network to access Internet has been chosen. Secondly, both the whole architecture of this distribution automation system and the data transfer procedure are illustrated in detail. According to the actual needs, the data communication protocol has been put forward, as well as the design ideas of overall structure of the monitoring center. Besides, on the basis of discussing the structure and functions of the component parts of the monitoring center, the software design of the communication between monitoring center and the terminal is detailed. After analyzing the functional requirements and identifying the design objectives of the monitoring terminal, the design of the hardware structure has been introduced partly. In addition, modular design is adopted in the design of software system of the monitoring terminal.