Open AccessOpen‐end transformer‐based power tap for interconnection of AC/DC micro‐grids
Author(s) -
Liu Yang,
Zheng Jiehui,
Shi Kai,
Jiang Lin,
Ni Kai,
Wu Qinghua
Publication year - 2018
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2017.0141
Subject(s) - topology (electrical circuits) , transformer , interconnection , ac power , grid , network topology , power flow , computer science , electrical engineering , electric power system , electronic engineering , engineering , power (physics) , voltage , physics , telecommunications , mathematics , computer network , geometry , quantum mechanics
This study proposes an open‐end transformer‐based power tap (OETPT) for the interconnection of the alternating current sub‐grid and the direct current sub‐grid of a hybrid micro‐grid. Two topologies, topology‐A and topology‐B, were designed for OETPT, in which the primary or secondary windings of the transformer of OETPT are grounded, respectively. Steady‐state and dynamic models were developed for OETPT, based on which a vector control system was designed for the coordinated control of OETPT with topology‐A and topology‐B, respectively. OETPT achieves the decoupled control of the active and reactive powers. Simulation studies and experimental validations were undertaken to manifest the coordinated power flow control performance of OETPT with topology‐A and topology‐B, respectively.