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Investigation on an Interleaved Discontinuous-Current-Mode Single-Stage Power-Factor-Correction Converter

Author: GuJingXu
Tutor: MaZuoï¼›DuLi
School: Zhejiang University
Course: Power Electronics and Power Drives
Keywords: Single-stage Power Factor Correction Staggered parallel Bus voltage feedback
CLC: TM46
Type: Master's thesis
Year: 2006
Downloads: 338
Quote: 1
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Abstract


Single-stage power factor correction converter with only one power tube and the control loop will achieve shaping the input current , the precise adjustment of the input - output isolation and output , power factor can not be reached , but the input current harmonics able to meet the IEC regulations , and has a simple structure and low cost advantages in low-power applications , and therefore subject to a wide range of attention . But the kinds of converter peak input current ripple , light-load energy storage capacitor voltage stress and low efficiency . Based on analysis of single-stage power factor correction technology Research conducted in-depth study of a staggered parallel discontinuous mode single-stage power factor correction converter topology . The topology of the input Boost inductor interleaved parallel to reduce the input current ripple peak ; energy storage capacitor voltage feedback the light load bus voltage can be limited to less than 450V : half-bridge converter topology will not only reduce the stress of the switch and improve the response speed of the output , the single-stage PFC converter power capacity increased further , to expand its range of applications . The paper briefly introduces the development status of the subject of the research background and power factor correction technology , pointed out that the meaning and content of research projects . Followed by a more detailed analysis of the single-stage power factor correction technology . Including single-stage power factor correction circuit works topology the transform law as well as main drawback , as well as the technology used to improve these shortcomings . And in-depth study of a staggered parallel discontinuous mode single-stage power factor correction converter topology . Its steady state operation , and steady-state analysis based on the design of the experimental prototype of a 24V/10A output , given the details of the design process and the final experimental results . Experimental results show that the converter is not only has higher efficiency , and can limit the bus voltage 450V or less , so the converter has a higher cost and practicality . Finally, a summary of the full text , and needs further study in the future .

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
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