Premium
Line Loss Minimization Control in a Loop Distribution System Using Circulating Current Compensation and Reactive Current Suppression by a Unified Power Flow Controller
Author(s) -
Yamada Kazuhei,
Takeshita Takaharu,
Kunii Yasuyuki,
Ueda Fukashi
Publication year - 2014
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22552
Subject(s) - control theory (sociology) , shunt (medical) , converters , ac power , unified power flow controller , minification , controller (irrigation) , engineering , current (fluid) , current loop , power factor , loop (graph theory) , voltage , power (physics) , electric power system , power flow , computer science , mathematics , physics , electrical engineering , control (management) , mathematical optimization , artificial intelligence , biology , agronomy , cardiology , medicine , combinatorics , quantum mechanics
SUMMARY This paper describes line loss minimization control using the shunt and series converters of a UPFC (unified power flow controller) in a loop distribution system. The line losses in a loop distribution system are caused by the circulating current flowing in the loop and the mesh currents flowing to the loads. The authors have previously proposed a compensation method for circulating current using a series converter. In this paper, the authors propose a suppression method for reactive currents using a shunt converter. In the prototype model of a loop distribution system, a theoretical loss reduction ratio of 92% without line loss caused by active currents is obtained. Similar line loss reduction characteristics are obtained in experiments using the prototype distribution system.