| Title |
An Optimal Location of Superconducting Fault Current Limiter in Distribution Network with Distributed Generation Using an Index of Distribution Reliability Sensitivity |
| Authors |
Seung-Youal Kim ; Wook-Won Kim ; In-Su Bae ; Jin-O Kim |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2010.24.6.052 |
| Keywords |
Superconducting Fault Current Limiter ; Optimal Location ; Reliability Sensitivity |
| Abstract |
As electric power demand of customers is constantly increasing, more bulk power systems are needed to install in a network. By development of renewable energies and high-efficient facilities and deregulated electricity market, moreover, the amount of distributed resource is considerably increasing in distribution network consequently. Also, distribution network has become more and more complex as mesh network to improve the distribution system reliability and increase the flexibility and agility of network operation. These changes make fault current increase. Therefore, the fault current will exceed a circuit breaker capacity. In order to solve this problem, replacing breaker, changing operation mode of system and rectifying transformer parameters can be taken into account. The SFCL(Superconducting Fault Current Limiter) is one of the most promising power apparatus. This paper proposes a methodology for an optimal location of SFCL. This place is defined as considering the decrement of fault current by component type and the increment of reliability by customer type according to an location of SFCL in a distribution network connected with DG(Distributed Generation). With case studies on method of determining optimal location for SFCL applied to a radial network and a mesh network respectively, we proved that the proposed method is feasible. |