분산형전원을 위한 허브변전소 계량방식 개선에 관한 연구

Abstract

In this thesis, the necessity of hub-substation to vitalize and expand the distributed resources has been raised and also investigated the present condition of Haeng-won wind farm where has been being operated and Dong-bok·Buk-chon wind farm where has been being under construction, now. Furthermore, the existing system, which is concerned with the metering method of hub-substation for distributed resources, has been compared with the metering equipment and the present condition in Jeju, in order to draw the problem of the existing system.In addition, the necessity of upgrading the metering method for distributed resources has been purposed, and the problem has been found and the improvement plan has been also proposed from the following next two examples. The first one is that the case of 22.9 kV exclusive line which is used communally. the second one is that is the case of 154 kV transfomer and exclusive line which are used communally. At the conclusion of this thesis, the necessity of supplement and modification in the metering method of the existing system has been synthetically asserted.