Title :
Expert System for Wide Area Protection Zone Selection
Author :
Sheng, Su ; Jianhua, Liu ; Hui, Xiao ; Dongjun, Jiang
Author_Institution :
Dept. of Electr. Eng., Changsha Univ. of Sci. & Technol., Hunan
Abstract :
Load shedding has been proven to be effective and inexpensive counter measure to prevent the power grid from cascade collapse to blackout. In wide area adaptive protection, adaptation of backup protection relays, as well as load shedding can be used to reduce the likelihood of catastrophic failure in power system. In this paper, a graph theory based expert system is developed to divide electric power grid into protection zones containing substations and the coordination of backup protection relays and load shedding can be carried out considering the power of generators, load, backup spin capacity, transmission lose of the region, as well as the redundancy transmission capacity of its tie lines according to the power balance based protection system
Keywords :
expert systems; graph theory; load shedding; power grids; power system analysis computing; power system faults; power system protection; relay protection; backup protection relays; backup spin capacity; cascade collapse; expert system; graph theory; load shedding; power grid; power system blackout; redundancy transmission capacity; substations; transmission loss; wide area protection; Counting circuits; Expert systems; Graph theory; Power grids; Power measurement; Power system measurements; Power system protection; Power system relaying; Protective relaying; Substation protection; Expert System; Protection Zone Selection; Wide Area Protection;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1547054