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불용성전극(LS, T1)의 운전인자에 따른 산화제생성량연구와 가속 수명 테스트
소정환 ( Jung Whan So ),까루 ( Lu Ga ),고화영 ( Hwa Young Go ),정선아 ( Sun A Jung ),박선영 ( Seon Young Park ),박영식 ( Young Seek Park ),김동석 ( Dong Seog Kim ) 대구가톨릭대학교 자연과학연구소 2013 자연과학연구논문집 Vol.11 No.1
The purpose of this study is to figure out the amounts of oxidants (hydrogen peroxide, ozone, TRO, free Cl, RNO, chlorine Dioxide) at several operating parameters (NaCI concentration, electrode type) using electrochemical process. In this study, two electrode materials (LS electrode, T1 electrode) were used as an anode, titanium were used as an cathode. When percentage of Ru was decreased, and NaCI concentration was increased, all the oxidant concentrations were increased. In two electrodes, the NaCI concentration increased, the amount of the oxidizing agent was increased. When the electrode accelerated life test, was conducted examining for the life of electrode.
전류제어형 PWM 컨버터를 이용한 On-Line 무정전 전원장치에 관한 연구
김홍성,소정환,김한성,최규하 건국대학교 산업기술연구원 1995 건국기술연구논문지 Vol.20 No.-
Recently, according to the increasing critical loads such as commutation system, life support system in hospital, Computer, the supplying of stable power becomes more and more important. However line fault such as power failure, the variation of voltage or frequency frequently occurs since Utility supplies power to many kinds of loads through the same transmission line. Therefore it is indespensable to stabilize power source like UPS(Uninterruptible Power Supply). UPS system is divided into of-line type and on-line system is studied which can improve various drawbacks of off-line system. And the application of PWM converter to on-line UPS system is proposed and the PWM converter of input characteristics is investigated. As current control method, triangular method is adopted and PI controller is used for DC voltage regulation. And RMS control method is used for PWM inverter. This system is verified by digital simulation using ACSL package.