چکیده مقاله
Recently, distribution generation DG usage is widely increased which can have undesirable effects on power protection systems DG usage will lead to change the levels of short circuit in the power system Therefore, protection coordination of directional over current relay DOCR may be lost In this paper, using fault current limiter FCL to restore DOCR protection coordination has been discussed For this purpose, appropriate FCL initialization and placement is so important Also, genetic algorithm GA optimization method is used in this paper Moreover, DG generated power variation can change the short circuit levels and changing in DG placement can cause DOCR miscoordination so that all DG placement situation as well as the different amounts of their production power should be considered In DOCR protective coordination and FCL values optimization, DGs should be considered Therefore, the proposed method will be robust when the DG values change Also due to the economic problems, two different types of FCL are used Thus, the optimization algorithms for each specific location suggest different FCL which can reduce the costs The proposed method is implemented based on the IEEE 8 bus The simulation results show that the proposed method can provide DOCR protection coordination in the presence of the DGs and their location and values variations In other words, the proposed method should be robust
کلیدواژهها
نویسندگان
navid Bayati
Department of Electrical Engineering , Amirkabir University of Technology, Tehran, Iran
s.H.H sadeghi
Department of Electrical Engineering , Amirkabir University of Technology, Tehran, Iran
amir hosseini
Department of Electrical Engineering , Amirkabir University of Technology, Tehran, Iran
شیوه ارجاع
Bayati, navid and sadeghi, s.H.H and hosseini, amir,1395,A New Approach for Optimal Allocation of Different Type of FCLs in Variable Distributed Generation Systems,4th National Congress of Electrical and Computer Engineering of Iran,Tehran
ارائهشده در
مجموعه مقالات چهارمین کنفرانس بین المللی مهندسی برق و کامپیوتر23 دی 1395 · تهران