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Distributed‐series compensator for controlling voltage in distribution line with clustered distributed generations
Author(s) -
Simanjorang Rejeki,
Miura Yushi,
Ise Toshifumi
Publication year - 2009
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20424
Subject(s) - reactance , transformer , ac power , voltage , control theory (sociology) , engineering , power flow , overvoltage , line (geometry) , electrical engineering , electronic engineering , computer science , power (physics) , electric power system , mathematics , physics , geometry , control (management) , quantum mechanics , artificial intelligence
Abstract A method of controlling voltage profile in distribution line with many distributed generations (DGs) using distributed‐series compensator (D‐SC) is proposed. These DGs are assumed to be clustered photovoltaics (PVs) which are installed at residential area. A large power injected by PVs may result in reverse power flow from PVs to main source, which can lead to overvoltage in the distribution line. To mitigate this problem, it is proposed to install D‐SCs close to pole transformer of the distribution line. A D‐SC is a series compensator that can imitate characteristic of negative resistance and reactance, while reverse power flow occurs in distribution line. This is carried out by injecting active and reactive power to the distribution line through voltage injection. Providing active power for the D‐SC is done by a bidirectional rectifier which is connected to the secondary side of a pole transformer. The effectiveness of the proposed method is achieved by the improvement of voltage profile with small capacity of D‐SC and bidirectional rectifier. Theoretical analysis is discussed and simulation results are shown to verify the proposed method. Copyright © 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.