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RISS 인기검색어
- 검색키워드
- 저자 : 제정형 (검색결과 1 건)
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제정형 慶尙大學校 産業大學院 2005 국내석사
In this paper, the design of interleaved boost converter for high-power DC motor is presented. The interleaved boost converter with transformer is composed of several identical boost converters connected in parallel. The converters are controlled by the interleaved switching signals, which have the same switching frequency and the same phase shifting. By virtue of paralleling the converters, the input current can be shared, so that high reliability and efficiency in power electronic systems can be obtained. As a consequence of the interleaving operation, the interleaved boost converter with transformer exhibits both lower current ripple at the input side and lower voltage ripple at the output side. Therefore, the size and losses of the filtering stages can be reduced, and the switching and conduction losses as well as EMI levels can be significantly decreased. For the research, a formula of the interleaved boost converter with transformer is derived and differences of signal-phase boost converters from the interleaved boost converter with transformer are considered. Also a simulation of the interleaved boost converter with transformer is conducted. The program used in simulation is "Pspice". It premises general assumption that Each switching element is ideal element without loss. According to the terms desired, The boost converter keeps regular outputs without ripple components. For the this, First, Full-bridge circuit is used in theory parts of the paper. Second, The interleaved boost converter with transformers that two converters are connected in parallel is designed. And the supreme converter is designed by calculating performance and efficiency according to changes of load and frequency. In addition drivers is designed by using IR2113 chip and the shifted phase signal circuit is implemented using a CPLD chip. After compose whole system, according to circumstance differences of single-phase converters from the interleaved boost converter with transformer are arranged and it is found out frequency suitable for a high-power DC motor. At the result, It is analyzed the performance and efficiency of converter using experimental results.
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