TITLE:
A Reliability Impact and Assessment of Distributed Generation Integration to Distribution System
AUTHORS:
Atthapol Ngaopitakkul, Chaichan Pothisarn, Sulee Bunjongjit, Boonlert Suechoey, Chaiyo Thammart, Auttarat Nawikavatan
KEYWORDS:
Reliability; Distributed Generation; Interruption Cost; Distribution System; SAIFI; SAIDI
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
13,
2013
ABSTRACT: The main purpose of this paper is to study the
reliability due to the employment of distributed generations (DG) integrated to
distribution system. The system under this study is from Provincial Electricity
Authority (PEA) that is a part of Thailand’s distribution system.
Data of geographic information systems (GIS) including the distance of
distribution line and location of load that are parameter of PEA is simulated
using digital simulation and electrical network calculation program (DIgSILENT)
to analyze the impact of reliability with the installing DG into the
distribution system. The system average interruption frequency index (SAIFI),
the system average interruption duration index (SAIDI) and interruption cost
are assessed as index of reliability by comparing the SAIFI, SAIDI, and
interruption cost between the base case (no DG) and the case that DG connected
to the distribution system. The results can be summarized by focusing on
location of DG, the capacity of DG, the size of load, and the distance of load
which are factors able to impact to SAIFI, SAIDI, and interruption cost.