Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems
Critical load applications always rely on UPS systems to uphold continuous power during abnormal grid conditions. In case of any power disruption, an offline UPS system starts powering the load to avoid blackout. However, this process can root the momentous inrush current for the transformer install...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-02-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/2/96 |
| _version_ | 1797999894246457344 |
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| author | Syed Sabir Hussain Bukhari Shahid Atiq Byung-il Kwon |
| author_facet | Syed Sabir Hussain Bukhari Shahid Atiq Byung-il Kwon |
| author_sort | Syed Sabir Hussain Bukhari |
| collection | DOAJ |
| description | Critical load applications always rely on UPS systems to uphold continuous power during abnormal grid conditions. In case of any power disruption, an offline UPS system starts powering the load to avoid blackout. However, this process can root the momentous inrush current for the transformer installed before the load. The consequences of inrush current can be the reduction of output voltage and tripping of protective devices of the UPS system. Furthermore, it can also damage the sensitive load and decrease the transformer’s lifetime. To prevent the inrush current, and to avoid its disruptive effects, this research suggests an offline UPS system based on a current regulated inverter that eliminates the inrush current while powering the transformer coupled loads. A detailed comparative analysis of the conventional and proposed topologies is presented and the experiment was performed by using a small prototype to validate the performance, and operation of the proposed topology. |
| first_indexed | 2024-04-11T11:11:53Z |
| format | Article |
| id | doaj.art-7d772a2ba93d4c63982a4281609f0f4f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T11:11:53Z |
| publishDate | 2016-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7d772a2ba93d4c63982a4281609f0f4f2022-12-22T04:27:26ZengMDPI AGEnergies1996-10732016-02-01929610.3390/en9020096en9020096Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS SystemsSyed Sabir Hussain Bukhari0Shahid Atiq1Byung-il Kwon2Deptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, KoreaDeptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, KoreaDeptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, KoreaCritical load applications always rely on UPS systems to uphold continuous power during abnormal grid conditions. In case of any power disruption, an offline UPS system starts powering the load to avoid blackout. However, this process can root the momentous inrush current for the transformer installed before the load. The consequences of inrush current can be the reduction of output voltage and tripping of protective devices of the UPS system. Furthermore, it can also damage the sensitive load and decrease the transformer’s lifetime. To prevent the inrush current, and to avoid its disruptive effects, this research suggests an offline UPS system based on a current regulated inverter that eliminates the inrush current while powering the transformer coupled loads. A detailed comparative analysis of the conventional and proposed topologies is presented and the experiment was performed by using a small prototype to validate the performance, and operation of the proposed topology.http://www.mdpi.com/1996-1073/9/2/96uninterruptible power supplyofflineinrush currentscurrent regulation |
| spellingShingle | Syed Sabir Hussain Bukhari Shahid Atiq Byung-il Kwon Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems Energies uninterruptible power supply offline inrush currents current regulation |
| title | Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems |
| title_full | Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems |
| title_fullStr | Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems |
| title_full_unstemmed | Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems |
| title_short | Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems |
| title_sort | elimination of the inrush current phenomenon associated with single phase offline ups systems |
| topic | uninterruptible power supply offline inrush currents current regulation |
| url | http://www.mdpi.com/1996-1073/9/2/96 |
| work_keys_str_mv | AT syedsabirhussainbukhari eliminationoftheinrushcurrentphenomenonassociatedwithsinglephaseofflineupssystems AT shahidatiq eliminationoftheinrushcurrentphenomenonassociatedwithsinglephaseofflineupssystems AT byungilkwon eliminationoftheinrushcurrentphenomenonassociatedwithsinglephaseofflineupssystems |