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역률개선과 고조파 보상기능을 가진 단상 무정전 전원 장치
전성즙 釜慶大學校 1997 釜慶大學校 論文集 Vol.2 No.2
In this paper an Uninterruptible Power Supply(UPS) which has excellent power factor improvement and harmonic compensation capability is proposed. An intantaneous value control strategy to control the load voltage and the line currentis adopted. The proposed UPS has small size compared with conventional cascaded UPS. In this paper, detailde ontrol strategy and experimental results are pres-ented.
기하대수에 의한 비정현파 다선식 전력계통에서의 피상전력의 표현
전성즙(Seong-Jeub Jeon) 대한전기학회 2009 전기학회논문지 Vol.58 No.10
According to recent researches, apparent power in a non-sinusoidal single phase system can be represented with geometric algebra. In this paper, the geometric algebra is applied to apparent power defined in a multi-line system having transmission lines with frequency-dependency under non-sinusoidal conditions.