High‐voltage switch‐mode assisted linear amplifier based voltage source for dielectric low frequency‐domain spectroscopy measurements Article Swipe
Shawn Nielsen
,
Geoffrey R. Walker
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1049/joe.2018.8121
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.1049/joe.2018.8121
This study presents a switch‐mode assisted linear amplifier (SMALA) designed for use as a frequency‐domain spectroscopy (FDS) excitation voltage source for the diagnostic testing of oil/paper insulation systems in large power transformers. The developed voltage source has a low output voltage noise level and low harmonic content and is capable of driving highly capacitive loads with a maximum output voltage of 800 V p‐p in the frequency range of DC to 100 Hz and current limited to 20 mA. Disturbances in the output voltage associated with switching of the main switching amplifier are minimised through the control of the switching time, taking the slew rate of the correction amplifier into account. The switching time of the main switching amplifier can be effectively controlled using a combination of a simple RC filter on the output of the main switching amplifier and controlling the rise‐time and fall‐time of the MOSFET gate drive voltage. Using the developed SMALA unit, it was possible to perform FDS measurement on an oil/paper‐insulated transformer at an elevated excitation voltage. This resulted in a non‐linear response current, manifesting as odd harmonics in the measured current.
Related Topics
Concepts
Direct-coupled amplifier
Amplifier
Electrical engineering
Input offset voltage
Log amplifier
Materials science
Linear amplifier
Voltage divider
Voltage
Operational amplifier
Electronic engineering
Engineering
CMOS
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1049/joe.2018.8121
- https://ietresearch.onlinelibrary.wiley.com/doi/pdfdirect/10.1049/joe.2018.8121
- OA Status
- gold
- References
- 8
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2940589941
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2940589941Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1049/joe.2018.8121Digital Object Identifier
- Title
-
High‐voltage switch‐mode assisted linear amplifier based voltage source for dielectric low frequency‐domain spectroscopy measurementsWork title
- Type
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articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2019Year of publication
- Publication date
-
2019-04-26Full publication date if available
- Authors
-
Shawn Nielsen, Geoffrey R. WalkerList of authors in order
- Landing page
-
https://doi.org/10.1049/joe.2018.8121Publisher landing page
- PDF URL
-
https://ietresearch.onlinelibrary.wiley.com/doi/pdfdirect/10.1049/joe.2018.8121Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://ietresearch.onlinelibrary.wiley.com/doi/pdfdirect/10.1049/joe.2018.8121Direct OA link when available
- Concepts
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Direct-coupled amplifier, Amplifier, Electrical engineering, Input offset voltage, Log amplifier, Materials science, Linear amplifier, Voltage divider, Voltage, Operational amplifier, Electronic engineering, Engineering, CMOSTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
0Total citation count in OpenAlex
- References (count)
-
8Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.maximum | 57 |
| abstract_inverted_index.perform | 160 |
| abstract_inverted_index.systems | 27 |
| abstract_inverted_index.testing | 23 |
| abstract_inverted_index.through | 94 |
| abstract_inverted_index.voltage | 18, 34, 40, 59, 83 |
| abstract_inverted_index.account. | 110 |
| abstract_inverted_index.assisted | 5 |
| abstract_inverted_index.current, | 178 |
| abstract_inverted_index.current. | 186 |
| abstract_inverted_index.designed | 9 |
| abstract_inverted_index.elevated | 169 |
| abstract_inverted_index.harmonic | 45 |
| abstract_inverted_index.measured | 185 |
| abstract_inverted_index.possible | 158 |
| abstract_inverted_index.presents | 2 |
| abstract_inverted_index.response | 177 |
| abstract_inverted_index.resulted | 173 |
| abstract_inverted_index.voltage. | 150, 171 |
| abstract_inverted_index.amplifier | 7, 91, 108, 118, 138 |
| abstract_inverted_index.developed | 33, 153 |
| abstract_inverted_index.frequency | 66 |
| abstract_inverted_index.harmonics | 182 |
| abstract_inverted_index.minimised | 93 |
| abstract_inverted_index.oil/paper | 25 |
| abstract_inverted_index.switching | 86, 90, 99, 112, 117, 137 |
| abstract_inverted_index.associated | 84 |
| abstract_inverted_index.capacitive | 53 |
| abstract_inverted_index.controlled | 122 |
| abstract_inverted_index.correction | 107 |
| abstract_inverted_index.diagnostic | 22 |
| abstract_inverted_index.excitation | 17, 170 |
| abstract_inverted_index.insulation | 26 |
| abstract_inverted_index.combination | 125 |
| abstract_inverted_index.controlling | 140 |
| abstract_inverted_index.effectively | 121 |
| abstract_inverted_index.fall‐time | 144 |
| abstract_inverted_index.manifesting | 179 |
| abstract_inverted_index.measurement | 162 |
| abstract_inverted_index.rise‐time | 142 |
| abstract_inverted_index.transformer | 166 |
| abstract_inverted_index.Disturbances | 79 |
| abstract_inverted_index.non‐linear | 176 |
| abstract_inverted_index.spectroscopy | 15 |
| abstract_inverted_index.switch‐mode | 4 |
| abstract_inverted_index.transformers. | 31 |
| abstract_inverted_index.frequency‐domain | 14 |
| abstract_inverted_index.oil/paper‐insulated | 165 |
| cited_by_percentile_year | |
| corresponding_author_ids | https://openalex.org/A5070020923 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 2 |
| corresponding_institution_ids | https://openalex.org/I160993911 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/7 |
| sustainable_development_goals[0].score | 0.8799999952316284 |
| sustainable_development_goals[0].display_name | Affordable and clean energy |
| citation_normalized_percentile.value | 0.02647793 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |