Design of offset adjusting circuit for voltage balance of battery charge/discharge
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The exhaust emissions from ships is the most important issue faced by the shipbuilding industry. The International Maritime Organization (IMO) which regulates international shipping came out with a ruling that the exhaust emissions from ships by 2050 must be reduced by 50% of the total volume as compared to 2008 levels. Research on electric propulsion ships using batteries are being conducted. The battery is changed regularly, when the condition of the battery is deteriorated and the aging phenomenon becomes serious. Recently, several for measuring internal impedance using electrochemical impedance spectroscopy have been used. In this study, we solved this adjust so that the period of charge/discharge signal is injected to the same in the conventional circuit which improved the distortion by individually controlling the Bipolar Junction Transistor (BJT) offset of Push-Pull circuit. We designed and simulated a circuit that can control the charge and discharge cycles to one offset at the same time. The proposed current circuit designed an AC sensing circuit suitable for the improved circuit. We concluded that the our proposed simulation of a circuit can be adjusted to minimize distortion.
Abstract
The exhaust emissions from ships is the most important issue faced by the shipbuilding industry. The International Maritime Organization (IMO) which regulates international shipping came out with a ruling that the exhaust emissions from ships by 2050 must be reduced by 50% of the total volume as compared to 2008 levels. Research on electric propulsion ships using batteries are being conducted. The battery is changed regularly, when the condition of the battery is deteriorated and the aging phenomenon becomes serious. Recently, several for measuring internal impedance using electrochemical impedance spectroscopy have been used. In this study, we solved this adjust so that the period of charge/discharge signal is injected to the same in the conventional circuit which improved the distortion by individually controlling the Bipolar Junction Transistor (BJT) offset of Push-Pull circuit. We designed and simulated a circuit that can control the charge and discharge cycles to one offset at the same time. The proposed current circuit designed an AC sensing circuit suitable for the improved circuit. We concluded that the our proposed simulation of a circuit can be adjusted to minimize distortion.
참고문헌 (6)
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- 김상만, "국제해운의 온실가스 배출에 대한 국제적 규제에 대한 고찰", 환경법과 정책, 23, pp.141~172 (2019), 비교법학연구소[DOI]
- 송태현, "An improved battery-impedance measurement module for electric propulsion ships and a study of battery characteristics", 한국마린엔지니어링학회지, 43(2), pp.108~113 (2019), 한국마린엔지니어링학회[DOI]
- 송태현, "인버터 레벨 방전 방식에 따른 급속 충·방전 배터리의 수명 특성", 한국마린엔지니어링학회지, 42(7), pp.615~619 (2018), 한국마린엔지니어링학회[DOI]
- T. H. Song, "The study on the charge cycle for optimization of battery pulse charging", M.S., Department of Electrical and Electronic Engineering, pp.2019
- J. L. Choi, "Study on Electrochemical Impedance Spectroscopy Equipment for Checking State of Battery", M.S., Department of Electrical and Electronic Engineering, pp.2018