DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 문건우 | - |
dc.contributor.advisor | Moon, Gun-Woo | - |
dc.contributor.author | Kim, Ki Mok | - |
dc.date.accessioned | 2023-06-23T19:33:45Z | - |
dc.date.available | 2023-06-23T19:33:45Z | - |
dc.date.issued | 2023 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1030649&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/309109 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2023.2,[v, 68 p. :] | - |
dc.description.abstract | In this dissertation, a novel power converter circuit with noise reduction and reduced voltage stress is proposed. By minimizing the current ripple at the input and output terminals of the converter, the size of the filter can be reduced along with noise reduction, and by reducing the voltage stress of the semiconductor switching device, the performance and efficiency of the converter can be improved. The first proposed circuit is a resonant DC-DC converter circuit with a small input current ripple, which can improve the input noise of the conventional converter by reducing the input current ripple, as well as reduce the conduction loss by reducing the voltage stress of the diode. Moreover, it has the advantage of reducing the switching loss of switches and diodes through the soft switching operation. The second one is a new 13-level switched capacitor inverter circuit with reduced voltage stress. It can reduce the output harmonic by outputting a 13-level waveform. In addition, the voltage stress of all switches is kept less than half of the output maximum voltage, reducing power loss. Moreover, due to having a high voltage boost ability, it can be a single-stage structure by removing the DC-DC boost converter of the conventional two-stage inverter and has also the advantage of reducing the cost and the number of switches. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Resonant converter▼aInput current ripple▼aSwitched capacitor▼aVoltage stress of diode▼aVoltage stress of switch▼aVoltage gain▼aRenewable energy▼aBattery▼aDC distribution systems▼aHigh efficiency | - |
dc.subject | 공진형 컨버터▼a입력 전류리플▼a스위치드 커패시터▼a다이오드 전압스트레스▼a스위치 전압스트레스▼a전압 이득▼a신재생에너지▼a배터리▼a직류배전시스템▼a고효율 | - |
dc.title | Study on power converter with noise reduction and reduced voltage stress | - |
dc.title.alternative | 노이즈 저감 및 낮은 전압스트레스를 갖는 전력 컨버터에 관한 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | 김기목 | - |
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