Seamless control mode transfer of a PCS for islanding mode operation

Author

Jung, Jae-Hun ; Nho, Eui-Cheol ; Kim, In-Dong ; Kim, Heung-Geun ; Chun, Tae-Won ; Choi, Nam-Sup

Author_Institution

Dept. of Electr. Eng., Pukyong Nat. Univ., Busan, South Korea

fYear

2011

fDate

May 30 2011-June 3 2011

Firstpage

2658

Lastpage

2662

Abstract

This paper describes a new method for the seamless transfer between voltage and current control modes of a PCS in a microgrid. Usually, microgrid is connected to a utility through STS. In case of short circuit fault a huge current may flow through the STS, therefore, it is necessary to provide a method to reduce the STS fault current. In this paper a novel method to reduce the fault current is proposed, and the method can help to make a smooth operating mode change between current and voltage control of a PCS. The proposed method is applied to 10 kVA power system including utility source, STS, PCS, and load. Simulation results show the usefulness of the proposed method.

Keywords

air conditioning; distributed power generation; electric current control; power generation control; power grids; short-circuit currents; switched mode power supplies; switches; voltage control; PCS; STS; apparent power 10 kVA; current control modes; fault current; islanding mode operation; microgrid; power system; seamless control mode transfer; short circuit fault; voltage control; Accidents; Current control; Fault currents; Inverters; Thyristors; Voltage control; Voltage fluctuations; Microgrid; PCS; Seamless transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on

Conference_Location

Jeju

ISSN

2150-6078

Print_ISBN

978-1-61284-958-4

Electronic_ISBN

2150-6078

Type

conf

DOI

10.1109/ICPE.2011.5944752

Filename

5944752