The Study On Computerized Five-prevention Operation System Of 500kV Non-attended Substation Of Fu Quan

With the development of the computer technology and network communications technology, computerized relay protection and automation system have applied in power system,which makes the management of substation realized non-attended. Now, full automation and non-attended substation have become the developing trend of the roboticized attemper of electrical network and atommatization of power system.Based on the embedded study of the actuality of computerized five-prevention operation system, this thesis presents a computerized five-prevention operation system for non-attended substation and raises a implementary scheme of computerized five-prevention operation system for non-attended substation which features one industrial host computer keeping several five-prevention substations, computer key showing all operation order sentences and recording operation time automatically, and distance communication interface making modification and transfer of distance operation programs possible between main station and substations.For the practical exercise of this scheme, installing and debugging of computerized five-prevention operation system for non-attended substation were introduced ,and the author analysed the practical exercise particularly.The practice proved : The system sets out from the running manage and locale operation of non-attended substation. Its working-flow answers for regulation. It demonstrates the runner in convert-knife switch operation. The digital signals exchange between main station and substations, which is advantageous because it need not convert-knife switch operation. The system is more perfect than others. It integrates with making out an invoice, try outing and operation. It not only meets the need of five-prevention operation, but also limit operation and operating task. Superskey can display operating sentence and note the operating time.We may use and maintain the system simply. The system heighten the automation level of the non-attended substation, which improve the security of equipment and power supply. The probability of occurring accident and obstacle descend greatly. Consequently, the expense in examining and repairing is little. It is most important that the system stabilizes and solidify production safely.