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수동형 필터 적용시 무효전력의 변화에 관한 연구

Study on the Variation of Reactive Power When Applying the Passive Filter

  • Kim, Ji-Myeong (Dept. of Electrical Engineering, Gangneung-wonju National University) ;
  • Kim, Jong-Gyeum (Dept. of Electrical Engineering, Gangneung-wonju National University)
  • 투고 : 2016.07.18
  • 심사 : 2016.08.16
  • 발행 : 2016.09.01

초록

Generally, the low-voltage customer has been used with a linear load and nonlinear load in the 3-phase 4-wire distribution system. Linear load has usually configured the resistance and inductance, current phase is slower than the voltage phase, so power factor is low. It is required for the power factor correction device prior to the phase of the current than the voltage. The capacitor is connected in parallel to the load in order to ensure a low power factor. Power converter such as an inverter is a typical non-linear load. Non-linear load generates harmonic currents in the energy conversion process. Many electrical equipment may be adversely affected by the harmonic current. There, passive or active filter have been used to reduce these harmonics current. Passive filter consisting of inductor and capacitor generates a reactive power. According to the combination of filter inductor and capacitor, reactive power can be adjusted. In this paper, we analyzed how the combination of inductor and capacitor affects the overall power factor by simulation and measurement.

키워드

참고문헌

  1. Jong-Gyeum Kim, et al., "Variance of Harmonics Element due to Linear & Non-linear Load Quantity", KIEE, Vol. 51B, No. 8, pp. 441-448, 2002. 08
  2. Jong-Gyeum Kim, et al., "Harmonic Analysis of Reactor and Capacitor in Single-tuned Harmonic Filter Application", JEET, Vol. 6, No. 2, pp. 239-244, 2011. 06
  3. IEEE Std 1531, "IEEE Guide for Application and Specification of Harmonic Filters", 2003.
  4. IEEE Std 519-1992, "IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems", 2004
  5. Jong-Gyeum Kim, et al., "A Study on the Harmonic Characteristics of Nonlinear Load operated by Unbalance Voltage", KIEE, Vol.52B, No.10, pp.491-500, 2003. 10
  6. Jong-Gyeum Kim, Eun-Woong Lee, "Analysis on the Harmonics Characteristics Due to Increase & Decrease of Nonlinear Load", KIEE, Vol.52P, No.3, pp.100-106, 2003.9
  7. Jong-Gyeum Kim, Young-Jeen Park, Eun-Woong Lee, "Characteristic Analysis of Capacitor and Reactor for Harmonic Filter", KIEE, Vol. 58, No. 1, pp. 1-8, 2009.3
  8. Ramasamy Natarajan, "Power System Capacitor", Taylor & Francis, 2005
  9. IEEE Std 141-1993, "Power factor and related considerations"
  10. H.W. Dommel, "Electromagnetic Transients Program. Reference Manual (EMTP Theory Book)", BPA 1986.