The Design of control algorithm for 150kVA power quality compensator

150kVA급 전기품질 보상기기 제어 알고리즘 설계

  • Jeon, Jin-Hong (Korea Electrotechnology Research Institute, FACTS&PQ Group) ;
  • Kim, Ji-Won (Korea Electrotechnology Research Institute, FACTS&PQ Group) ;
  • Chun, Yeung-Han (Korea Electrotechnology Research Institute, FACTS&PQ Group) ;
  • Kim, Ho-Young (Korea Electrotechnology Research Institute, Electric Power Reseach Lab.)
  • 전진흥 (한국전기연구원 FACTS&PQ 연구 그룹) ;
  • 김지원 (한국전기연구원 FACTS&PQ 연구 그룹) ;
  • 전영환 (한국전기연구원 FACTS&PQ 연구 그룹) ;
  • 김호용 (한국전기연구원 전력연구단)
  • Published : 2001.07.18

Abstract

In recent years, customers and power supplies are interested in power quality. Demands of customers are change from standard quality of distribution power system to various high quality of distribution power system. so, it is necessary to apply power quality compensator, in our project, we develop the power quality compensator of 150kVA which compensates power factor and voltage sag, interruption. it is very frequently occurred power qualify problems[1,2]. As a series and shunt compensator, power quality compensator consists of two inverters with common do link capacitor bank. It compensates the current quality in the shunt part and the voltage qualify in the series part. In this paper we present the design and control algorithm of power quality compensator. As a control algorithm is implemented by digital controller, we consider sample-and-hold of signals. In this simulation, we use EMTDC/PSCAD V3.0 software which can simulate instantaneous voltage and current.

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