| Analysis of Discharge Spark Energy in Buck Converter of a Continuous Mode of Inductive Current |
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| 作者姓名： | CUI Bao-chun CHENG Hong WANG Cong LU Huan-yu SHI Yun |
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| 作者单位： | Department of Information and Electrical Engineering, China University of Mining ＆ Technology, Beijing 100083, China |
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| 摘 要： | The basic idea of intrinsically safe circuit and the discharge spark in the Buck converter in the explosive atmospheres were introduced. The Buck converter is the main topological structure of the switch type of intrinsically safe circuit, which has two working modes： continuous inductive current （CCM -- continuous conduction mode） and discrete inductance current （DCM -- discontinuous conduction mode）. The operating state of the continuous inductive current mode is analyzed in detail and the energy of discharge spark in various operating modes is discussed. The total energy will decrease with the increase of switch frequency, in a switching cycle; the discharge spark energy has a maximum and a minimum value. Therefore, the Buck converter has smaller discharge spark energy than the linear power circuit and the switch type of intrinsically safe circuit can enhance the output power and the conversion efficiency of the intrinsically safe power.
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| 关 键 词： | 煤矿 矿业开采 自动化 密封技术 |
| 收稿时间： | 2006-03-06 |
| 修稿时间： | 2006-07-08 |
Analysis of Discharge Spark Energy in Buck Converter of a Continuous Mode of Inductive Current |
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| CUI Bao-chun CHENG Hong WANG Cong LU Huan-yu SHI Yun.Analysis of Discharge Spark Energy in Buck Converter of a Continuous Mode of Inductive Current[J].Journal of China University of Mining and Technology,2006,16(4):514-517,522. |
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| Authors: | CUI Bao-chun CHENG Hong WANG Cong LU Huan-yu SHI Yun |
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| Affiliation: | 1. State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, PR China;2. University of Chinese Academy of Sciences, Beijing, PR China |
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| Abstract: | The basic idea of intrinsically safe circuit and the discharge spark in the Buck converter in the explosive atmospheres were introduced. The Buck converter is the main topological structure of the switch type of intrinsically safe circuit, which has two working modes: continuous inductive current (CCM - continuous conduction mode) and discrete inductance current (DCM - discontinuous conduction mode). The operating state of the continuous inductive current mode is analyzed in detail and the energy of discharge spark in various operating modes is discussed. The total energy will decrease with the increase of switch frequency, in a switching cycle; the discharge spark energy has a maximum and a minimum value. Therefore, the Buck converter has smaller discharge spark energy than the linear power circuit and the switch type of intrinsically safe circuit can enhance the output power and the conversion efficiency of the intrinsically safe power. |
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| Keywords: | Buck converter discharge spark intrinsically safe |
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