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- Title
一种零纹波耦合电感高增益DC-DC变换器.
- Authors
梁文娟; 谭国东; 陈浩; 胡雪峰
- Abstract
In this paper, a high voltage gain DC-DC converter with coupled inductor and ripple free is proposed for low voltage renewable energy generation system,such as photovoltaic, fuel cell and so on.The coupling inductor technology is introduced on the basis of the traditional boost converter to improve the voltage gain. Diode capacitor passive clamp was introduced to primary side of the coupled-inductor which has the function of recovering the leakage energy and helps to extend the converter duty cycle. The switching capacitor voltage doubling unit was introduced to the secondary of the coupling inductor, the voltage gain is improved and the voltage stress of the power devices is clamped at a relatively low level which can use low resistance, low voltage level MOSFETs to improve the efficiency of the converter. In addition, the low input current ripple improving the efficiency, which reduces the loss of the converter and the electromagnetic interference to the input power supply. The operating principle and steady-state property are discussed in detail. Finally, a prototype is built to verify the theoretical analysis.
- Subjects
POWER resources; HIGH voltages; ELECTROMAGNETIC interference; LOW voltage systems; VOLTAGE-frequency converters; PHOTOVOLTAIC power generation; CAPACITOR switching
- Publication
Journal of Harbin University of Science & Technology, 2019, Vol 24, Issue 4, p14
- ISSN
1007-2683
- Publication type
Article
- DOI
10.15938/j.jhust.2019.04.003