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비대칭 전압 불평형에 의한 커패시터 동작 특성

A Study on the Characteristic of Capacitor by Asymmetrical Voltage Unbalance

  • 김종겸 (강릉원주대학교 전기공학과) ;
  • 박영진 (강릉원주대학교 전기공학과)
  • 발행 : 2010.03.01

초록

As the increasing of Non-linear load, we have been growing interest for the harmonics. Harmonics has been focused on the current component rather than voltages. Voltage harmonics can be mainly generated at the PCC with non-linear load and act on voltage unbalance. Voltage harmonics can be enlarged at the capacitor with low impedance as frequency increases. Capacitor is basically used for the power-factor compensation and sometimes as the passive filter. Small voltage of low-order acts on quite a few at the capacitor by the current increase. Capacitor has easily fall under by harmonic components. In this paper, we measured the magnitude and phase angle of asymmetrical voltage with harmonics components at the PCC and calculated with the same condition. we concluded that voltage harmonics of higher order increase each current component but have a little effect on capacitor rating.

키워드

참고문헌

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