A Study on the development and operational
characteristics of PCS for 10kW class SMES system
Under the Direction of
Professor Yu, In Keun & Park, Minwon
A thesis submitted to the committee of the Graduate
School of Changwon National University in partial
fulfillment of the requirements for the degree of Master
of Science
December 2007
ABSTRACT
STUDY ON THE DEVELOPMENT AND OPERATIONAL
CHARACTERISTICS OF PCS FOR 10kW CLASS SMES SYSTEM
by Kim, Arong
Department of Electrical Engineering
Graduate School, Changwon National University
Superconducting magnetic energy storage (SMES) system is having
increased attention in power system application because of its higher
efficiency and faster response. This paper proposes a high quality power
conditioning system (PCS) for the SMES system operation. The PCS
consists of a voltage source converter using IGBT (Insulated Gate Bipolar
Transistor). In order to compensate several problems such as voltage sag
and harmonic current flowing into utility, active filter systems could be a
good solution method. SMES is a promising source due to the high
response time of charge and discharge. This paper presents a simulation
technique for a decision making of the specification of the active filter
system combined with SMES system. Through the results of several
analyses and simulations carried out by PSCAD/EMTDC, this paper
demonstrates the significant effect of SMES on the improvement of power
system performance. Based on this simulation, the author developed a PCS
connected to the utility system. It was shown that the developed PCS was
well-designed and effective.
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