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논문 기본 정보

자료유형
학술저널
저자정보
Win, Tint Soe (Dept. of Electrical and Electronic Engineering, Yamaguchi University) Tanaka, Toshihiko (Dept. of Electrical and Electronic Engineering, Yamaguchi University) Hiraki, Eiji (Okayama University) Okamoto, Masayuki (Ube National College of Technology) Lee, Seong Ryong (Dept. of Control and Robot Engineering, Kunsan National University)
저널정보
대한전기학회분과 국제 전기 기기 및 시스템 논문지 국제 전기 기기 및 시스템 논문지 제3권 제2호
발행연도
2014.1
수록면
176 - 183 (8page)

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Three-phase four-wire distribution systems are used for both three-phase three-wire loads and single-phase two-wire consumer appliances in South Korea, Myanmar and other countries. Unbalanced load conditions frequently occur in these distribution systems. These unbalanced load conditions cause unbalanced voltages for three-phase and single-phase loads, and increase the loss in the distribution transformer. In this paper, we propose constant DC capacitor voltage control based strategy for the active load balancer (ALB) in the three-phase four-wire distribution systems. Constant DC capacitor voltage control is always used in active power line conditioners. The proposed control strategy does not require any computation blocks of the active and reactive currents on the distribution systems. Balanced source-side currents with a unity power factor are obtained without any calculation block of the unbalanced active and reactive components on the load side. The basic principle of the constant DC capacitor voltage control based strategy for the ALB is discussed in detail and then confirmed by both digital computer simulations using PSIM software and prototype experimental model. Simulation and experimental results demonstrate that the proposed control strategy for the ALB can balance the source currents with a unity power factor in the three-phase four-wire distribution systems.

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