Centralized bus protection device and method applied to digitized transformer station

Abstract

The invention provides centralized bus protection device and method applied to a digitized transformer station, which face to the digitized transformer station, follows an IEC 61850 standard and protects a bus in a transformer station. The device supports XML and can be configured by adopting various means and tools and is more convenient to exchange and share information in different systems and platforms, the standard configuration language SCL of the transformer station is adopted to carry out the related communication configuration of the device, and configured tools which conform to the IEC 61850 in any factories can be identified. The novel centralized bus protection device of the digitized transformer station is digitized and open, has a simple secondary circuit, does not need to consider the saturation of a mutual inductor, is easy to maintain and convenient to expand.

Description

Technical field: [0001] The invention belongs to the field of electric power system automation, and in particular relates to a centralized bus protection device and a method thereof for a data sharing digital substation based on IEC61850. Background technique: [0002] Digital substation and related technologies are hot issues in the field of power system automation in recent years. It is the result of the development of computer technology, network technology, and power system requirements. IEC61850 standard, multifunctional IED (Intelligent Electronic Device) and communication network are the key research contents. [0003] The IEC 61850 standard (substation communication network and system standard) was formulated by the TC57 working group of the International Electrotechnical Commission on the basis of summarizing previous communication protocols to realize seamless communication between devices from different manufacturers. Its core content includes function-based mode...

AI Technical Summary

Problems solved by technology

[0005] With the increasing promotion of digital transformers and fully digital substation integrated automation systems, the collectors and users of analog and digital signals are distributed in different devices, and the data can be shared through the network inside and outside the substation, which makes traditional collection The data are all analog signals and switching values, and the protection equipment of the substation with integrated signal acquisition and processing cannot be applied to the digital substation of IEC61850 standard

Images