Voltage Compensation Analysis in Distribution System by EMTP

EMTP를 이용한 수변전계통의 전압보상설비효과 분석기법

  • Published : 1996.10.01

Abstract

This paper proposed the voltage compensation analysis method in distribution system by EMTP. SVC (Static Var Compensator) of the thyristor controlled reactor type is used for compensation system. EMTP(E1ectr-o Magnetic Transient Program) model of SVC is proposed to analysis the voltage improvement characteristics at the high voltage system bus. It is composed with three parts ; rms detector, voltage regulator and gate pulse generator. The control signal of TCR is determined by rms value which was measured in system. As the result of EMTP simulation, all of the SVC characteristics like TCR current, firing pulse and bus voltage is very reliable. This method could be used to analysis the planning and the operation of compensation system in the large scale factory.

본 연구에서는 대규모 공장과 같은 수변전계통의 전압개선을 위한 전압보상설비의 특성을 해석하는 기법을 제시했다. 보상설비는 전력전자 기술을 이용한 SVC에 대해서 전기적인 과도특성 해석에 가장 정확안 S/W중 하나인 EMTP를 이용하여 TCR전류, 전압 및 점호특성 등을 분석하였다. 이러한 해석기법은 전압개선의 필요성이 높은 제철공장과 같은 대규모 공장의 수변전계통에서 외란에 대한 SVC의 전압개선 특성효과를 분석하는데 유용함을 보였다.

Keywords

References

  1. FACTS Scooping Study v.1 EPRI
  2. Current Activity in FACTS LEEE
  3. FACTS Technology EPRI
  4. EMTP Workbook v.1 no.4 EPRI
  5. Power System Control and Stability Kundur
  6. IEEE Trans. PAS. Vo. 1. v.PAS109 no.10 Digital simulation of static VAR system transients R.H.LAsseter;S.Y.Lee
  7. IEEE Trans. PD. Vo. 1. v.5 no.3 A static compensator model for use with EMTP A.M.Gole;V.K.Sood
  8. IEEE/PES winter meeting Detailed modeling of an actual SVC for electromangetic transient studies A.N.Vasconcels (et al.)