• Proceedings of the KIEE Conference
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• 1988.11a
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• pp.403-405
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• 1988

Recently, Power change devices using thyristor and transistor have grown with the rapid development of power electronics. But the devices using these semiconductors generate harmonics from the non-linear load, which gives rise to various obstacles. In this paper, therefore, as 3 taps are connected in input line, we can multiply the pulse in input line, by which harmonics is reduced.

• Proceedings of the KIPE Conference
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• 1999.07a
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• pp.333-337
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• 1999

This paper presents the DQ transfomation space space vector modulation method to devel control algorithm of distribu STATCON(STATic CONdenser) for line volt regulation, dc link voltage regulation harmonics compensation. The Performance an of a PI with ramp comparision and synchro reference frame current controller is carried Based on these analysis, the control perform are desirable to compensate the harmonics a regulate dc link and line voltage of Distrib line.

• Proceedings of the KIEE Conference
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• 2003.07e
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• pp.110-112
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• 2003

Harmonics happened due to nonlinear systems such as UPS, SCR controlled motors, and fluorescent lighting in distribute power system is very important subject to optimal operate and control of power system. Harmonics sometimes takes place incorrect operation of protective relaying system under normal condition on power system. This paper presents the actual recording data of transformer located at substation of industrial installation for harmonic analysis in detail.

• Proceedings of the KIEE Conference
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• 1997.11a
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• pp.46-48
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• 1997

Induction motor control using for adjustable speed drives has caused secondary effect such as harmonics. Therefore it is considered a various countermeasures to minimize these effects. In this paper, we analyzed the influence of harmonics that is generated by the inverter device for adjustable speed drive of induction motor at the load side.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.677-678
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• 2008

In this study, the method for the measurement of harmonics at nonsinusodial signal, which utilizes two synchronized high precision digital multimeters has been developed. The harmonics of voltage and current waveforms were computed from the acquired digitize samples through the DMMs and using developed software which based on FFT algorithm. The system can be used as a reference system to calibrate harmonic analyzers.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1461-1462
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• 2015

Based on the Kepco's standard supply terms, the customer should pay for installation the regulating device or protective device which are granted by Kepco in case the customer hinder other customer's electricity usage or it may cause the interruption because of harmonics or waveform distortion. It is necessary to consider the phase angle of voltage, current for harmonics so we can set up the measure of harmonic damages.

• Proceedings of the KIPE Conference
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• 1998.07a
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• pp.204-207
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• 1998

Many Harmonics components is contained within the stator currents of the High-speed Reluctance Synchronous Motor with salient pole rotor. They cause the power factor of RSM to get worse. In this paper, the mathematical model of RSM is investigated. And SV-PWM control method is applied to reduce Harmonics components in the stator currents. Simulation results shows the fast response of speed and the reduction of Harmonics components at steady state

• Proceedings of the KIEE Conference
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• 2003.07a
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• pp.30-32
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• 2003

This paper presents the determination procedure for planning levels of harmonics in distribution systems. Planning levels should be determinated by considering the system property, operation codition, and others based on compatibility levels. In this paper international standards for harmonics are studied and the determination procedure for planning levels is deduced.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.52 no.3
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• pp.100-106
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• 2003

The increasing application of power electronic equipment in industrial field has led to a growing concern for harmonic distortion and the resulting impacts on system equipment and operations. Harmonic currents are generated by the operation of nonlinear loads and equipment on the power system. These are more increased by unbalance voltage of electrical distribution power systems. This paper describes harmonics characteristics generated by varying of nonlinear load at the PCC under the voltage unbalance.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.2056-2057
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• 2007

Recently we installed inverter system in $ind{\acute{u}}ction-m{\acute{o}}tor$ for the energy saving. But inverter system generates harmonics, and it causes a lot of issues. malfunction of meter, damage of instrument, overheating of motor. In this study, you can see how to deal with harmonics of inverter system by diagnosis of the power quality.