Title :
Coordinated backup protection scheme for smart substation
Author :
Liu, L. ; He, J.H. ; Yip, Tony
Author_Institution :
Sch. of Electr. Eng., Beijing Jiaotong Univ., Beijing, China
fDate :
March 31 2014-April 3 2014
Abstract :
Based on advanced digital processing and comprehensive automation technologies, smart substation aims at improving the security, stability and flexibility of the power network. Due to the application of electrical instrument transformer, reliable and integrated intelligent device, digitization of substation area information and IEC61850 protocol, new protection scheme of smart substation can be constructed and realized. This paper presents a coordinated backup protection (CBP) scheme based on the structure and technical characteristics of a smart substation. Firstly, the framework of CBP scheme including communication network and function configuration is introduced. The protection algorithms and functions are then discussed in detail. Finally, two application issues, cooperation of CBP and the main protection, together with the hierarchical regional protection structure are analyzed and discussed.
Keywords :
IEC standards; power system security; power system stability; substation automation; substation protection; transformer substations; CBP scheme; IEC61850 protocol; comprehensive automation technology; coordinated backup protection scheme; digital processing technology; electrical instrument transformer; hierarchical regional protection structure; integrated intelligent device; power network flexibility; power network security; power network stability; smart substation; substation area information digitization; coordinated backup protection; redundant information; smart grid; smart substation;
Conference_Titel :
Developments in Power System Protection (DPSP 2014), 12th IET International Conference on
Conference_Location :
Copenhagen
Print_ISBN :
978-1-84919-834-9
DOI :
10.1049/cp.2014.0081
