Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment

High temperatures in unconventional oil and gas reservoir present a challenge to DC-DC converter design for downhole drilling equipment. In response to the high-temperature challenge, a design methodology consisting of controlling-junction temperature rise, derating component electrical parameters f...

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Main Authors: Fei Li, Yuan Liu, Xueying Ma, Yuqi Tan
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10274081/
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author Fei Li
Yuan Liu
Xueying Ma
Yuqi Tan
author_facet Fei Li
Yuan Liu
Xueying Ma
Yuqi Tan
author_sort Fei Li
collection DOAJ
description High temperatures in unconventional oil and gas reservoir present a challenge to DC-DC converter design for downhole drilling equipment. In response to the high-temperature challenge, a design methodology consisting of controlling-junction temperature rise, derating component electrical parameters for more design margin and selecting high-temperature components was proposed. Based on the methodology, a converter board with a nominal input of 42-54V and output of three low voltages (+15V, −15V, and +5V), was designed for the 150°C application. The maximum temperature rise of the components in the converter prototype under a temperature environment of 22°C is 11.9°C. The performance of the converter was verified at the ambient temperature from 30°C to 150°C. With a 42~54V input voltage, the output voltages have less than 0.2V fluctuation; the three output voltages can achieve a ripple suppression ratio of approximately 40dB, and the average conversion efficiency was around 75% at 150°C, which meets the design specification.
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spelling doaj.art-94fa967c9a454e569dfaaafbe300dbd12023-10-16T23:00:33ZengIEEEIEEE Access2169-35362023-01-011111112611113210.1109/ACCESS.2023.332292310274081Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling EquipmentFei Li0https://orcid.org/0000-0001-5934-4869Yuan Liu1https://orcid.org/0009-0007-3577-964XXueying Ma2Yuqi Tan3School of Electrical Engineering, Xi’an Shiyou University, Xi’an, ChinaSchool of Electrical Engineering, Xi’an Shiyou University, Xi’an, ChinaSchool of Electrical Engineering, Xi’an Shiyou University, Xi’an, ChinaSchool of Electrical Engineering, Xi’an Shiyou University, Xi’an, ChinaHigh temperatures in unconventional oil and gas reservoir present a challenge to DC-DC converter design for downhole drilling equipment. In response to the high-temperature challenge, a design methodology consisting of controlling-junction temperature rise, derating component electrical parameters for more design margin and selecting high-temperature components was proposed. Based on the methodology, a converter board with a nominal input of 42-54V and output of three low voltages (+15V, −15V, and +5V), was designed for the 150°C application. The maximum temperature rise of the components in the converter prototype under a temperature environment of 22°C is 11.9°C. The performance of the converter was verified at the ambient temperature from 30°C to 150°C. With a 42~54V input voltage, the output voltages have less than 0.2V fluctuation; the three output voltages can achieve a ripple suppression ratio of approximately 40dB, and the average conversion efficiency was around 75% at 150°C, which meets the design specification.https://ieeexplore.ieee.org/document/10274081/DC–DC converterhigh-temperature designflyback topologyderating design
spellingShingle Fei Li
Yuan Liu
Xueying Ma
Yuqi Tan
Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
IEEE Access
DC–DC converter
high-temperature design
flyback topology
derating design
title Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
title_full Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
title_fullStr Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
title_full_unstemmed Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
title_short Design of 150°C DC–DC Converter Based on Flyback Topology for Downhole Drilling Equipment
title_sort design of 150 x00b0 c dc x2013 dc converter based on flyback topology for downhole drilling equipment
topic DC–DC converter
high-temperature design
flyback topology
derating design
url https://ieeexplore.ieee.org/document/10274081/
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AT xueyingma designof150x00b0cdcx2013dcconverterbasedonflybacktopologyfordownholedrillingequipment
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