Research On Microprocessor Protection Device Of UHV Line Based On DSP

On the basis of reading a lot of literature home and abroad, the article entirely summarized the status quo, problems and development of UHV Line protection. UHV Line protection is the symbol of tiptop level in protection field. Research on Microprocessor protection in our country, especially the research on principle, is in advanced the world. But there are also some weak points.Aiming at the fact of UHV Line protection, the paper deeply studied several difficult points. The UHV line has the definite advantages of current deferential protection for each phase in principle, which research was analyzed in the article. The paper puts a self-adaptive deferential criterion adapted the UHV Line. Though the principle of the criterion is good, it also need further analysis as for a new principle.A suit of high-proficient protection device includes the advance of protection principle, the rationality and reliability of the design of hardware, scientific realization of software. On the basis of the analysis to the protection device of the same category, the article provides a better scheme of the device in terms of principle, the high-proficient protection hardware based on DSP. Furthermore, it makes a thorough consideration of the whole device, which abandons the traditional design of software, adopts the more brief design method of blocking software.