• 제어로봇시스템학회:학술대회논문집
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• 1993.10b
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• pp.288-292
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• 1993

This paper summerizes a prototype central control system of distribution automation system, which is a result of project carried out by KERI and 6 companies. Of the many possible systems, feeder automation oriented system is described. Control hardware system is composed of one super-mini and 2 workstations. Two kinds of commercial softwares, DBMS and graphic tools, are adopted. Three component system of the hardware has its own role, host system for DB managent, F.A. program running, communication scheduling, and etc., two workstations for communication node and graphic interface node. System management program, feeder automation program including load forcasting, communication scheduling and supervisory contorl functions are developed on the basis of above hardware and properly designed protocol, communication system and terminals.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.05a
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• pp.513-514
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• 2002

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.05a
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• pp.515-516
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• 2002

• Proceedings of the KIPE Conference
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• 2012.11a
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• pp.105-106
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• 2012

A feedback control algorithm for the input voltage control of boost converter is proposed in this paper. The proposed control system is mathematically formulated such that the state feedback gains. The control algorithm does not rely on manual tuning procedures neither use complex adaptive techniques. For the verification of the proposed control algorithm, simulation results of the proposed algorithm using PSIM 9.0 are given.

• Proceedings of the KIPE Conference
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• 2012.11a
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• pp.63-64
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• 2012

In this paper, design relatively lightweight dual inverter SAW welding power system, compared to former large and weight system. In addition, we propose welding system topology with pulse frequency, width and current management through applying inverter to ouput.

• Proceedings of the KIPE Conference
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• 2012.11a
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• pp.159-160
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• 2012

For renewable energy has been studied by many research. among them, non-pollution and infinite solar energy using solar power system is newly spotlighed. the DC output characteristic of the solar cell, connection to grid and using the inverter is essential to the process of converter DC to AC. in this paper, study the corresponding changes in the efficiency of the inverter and arcing occurs in the inverter, depending on the conditions and regulations in the UL-1699 series arc occurs.

• Proceedings of the KIPE Conference
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• 2012.11a
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• pp.161-162
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• 2012

Arc is very serious problem in different electric fields because arc is the cause of electrical fire. In the power electronics, arc give a bad impact in power quality and reliability Therefore, in order to effectively prevent the possible damages of arc fault, this paper studies arc characteristic in power electronic system.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.262.2-263
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• 2002

The fruits of various Actinidia species are known to be used as a folk remedy for treatment of various inflammatory and analgesic ailments. Effects of the ethanol extracts and fractions from the fruits of Actinidia polygama (Sieb. et Zucc.) Maxim (Actinidiaceae) were studied using various in vivo and in vtro models of inflammation in mice and rats. (omitted)

• Proceedings of the Zoological Society Korea Conference
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• 2001.10a
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• pp.264.1-264
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• 2001

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• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1397-1400
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• 2008

Frame rate conversion became key technology due to recent advances in LCD panel refresh rates. Although many FRC algorithms have been developed and applied for LCD TV sets, they still suffer from well-known halo artifact. This paper discusses about the artifacts and method to handle them.