DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 문건우 | - |
dc.contributor.author | Park, Jeong-Eon | - |
dc.contributor.author | 박정언 | - |
dc.date.accessioned | 2024-07-26T19:30:55Z | - |
dc.date.available | 2024-07-26T19:30:55Z | - |
dc.date.issued | 2023 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1047259&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/320961 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2023.8,[v, 78 p. :] | - |
dc.description.abstract | This dissertation proposes a new control method for solar array regulator (SAR) and a new converter integrating two bus voltage regulators for a satellite's high power density electrical power system. The new control method of SAR proposed in the first study is a direct energy transfer (DET) control that directly charges the battery from the solar array by keeping the buck converter switch of the SAR in the 'ON' state without switching operation. The proposed DET control reduces the conduction loss by eliminating the switching loss and reducing the peak value of the battery charging current. In addition, SAR's conventional controller, maximum power point tracking (MPPT) analog controller and three sensing inductors were removed, and the main inductors were redesigned to be smaller and lighter to reduce weight, volume, and cost. The new converter proposed in the second study is a converter that reduces the number of semiconductor devices by two by integrating a conventional buck converter and a two-switch forward converter. The proposed converter reduced the number of semiconductor devices to reduce weight, volume, and cost. Additionally, zero voltage switching (ZVS) of the switch is achieved to eliminate switching losses. As a result, the proposed DET control method and converter have the advantage of increasing power density in the satellite's electrical power systems. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 인공위성 전력 시스템▼a고전력밀도▼a제어 방법▼a컨버터 | - |
dc.subject | Satellite's electrical power systems▼aHigh power density▼aControl method▼aConverter | - |
dc.title | Study on high power density electrical power system of satellites | - |
dc.title.alternative | 인공위성의 고전력밀도 전력시스템에 관한 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | Moon, Gun-Woo | - |
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