A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids
This paper presents a controller for fast and ultra-fast electric vehicle (EV) charging stations. Without affecting the charging efficiency, the proposed controller enables the charger to provide support to the interconnection voltage to counter and damp its transients. Existing solutions are either...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | Journal of Modern Power Systems and Clean Energy |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10018858/ |
| _version_ | 1797818718550491136 |
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| author | Noushin Poursafar Seyedfoad Taghizadeh M. Jahangir Hossain Masoud Karimi-Ghartemani |
| author_facet | Noushin Poursafar Seyedfoad Taghizadeh M. Jahangir Hossain Masoud Karimi-Ghartemani |
| author_sort | Noushin Poursafar |
| collection | DOAJ |
| description | This paper presents a controller for fast and ultra-fast electric vehicle (EV) charging stations. Without affecting the charging efficiency, the proposed controller enables the charger to provide support to the interconnection voltage to counter and damp its transients. Existing solutions are either hardware-based such as using supercapacitors and flywheels which increase the cost and bulkiness of the charging station, or software-based such as <tex>$P/V$</tex> droop methods which are still unable to provide a robust and strong voltage support. This paper proposes an emulated supercapacitor concept in the control system of the ultra-fast EV charger in an islanded DC microgrid. Thus, it converts the EV from a static load to a bus voltage supportive load, leading to reduced bus voltage oscillations during single and multiple ultra-fast EV charging operations, and rides through and provides supports during extreme external disturbances. Detailed analysis and design guidelines of the proposed controller are presented, and its effectiveness and improved performance compared with conventional techniques are shown for different case studies. |
| first_indexed | 2024-03-13T09:12:12Z |
| format | Article |
| id | doaj.art-739c4783f737427b8aa649350db06d70 |
| institution | Directory Open Access Journal |
| issn | 2196-5420 |
| language | English |
| last_indexed | 2024-03-13T09:12:12Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | Journal of Modern Power Systems and Clean Energy |
| spelling | doaj.art-739c4783f737427b8aa649350db06d702023-05-26T23:01:04ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202023-01-0111389690610.35833/MPCE.2022.00030410018858A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC MicrogridsNoushin Poursafar0Seyedfoad Taghizadeh1M. Jahangir Hossain2Masoud Karimi-Ghartemani3School of Engineering, Macquarie University,Sydney,NSW,Australia,2109School of Engineering, Macquarie University,Sydney,NSW,Australia,2109School of Electrical and Data Engineering, University of Technology Sydney,Sydney,NSW,Australia,2007Mississippi State University,Department of Electrical and Computer Engineering,Mississippi,MS,USA,39762This paper presents a controller for fast and ultra-fast electric vehicle (EV) charging stations. Without affecting the charging efficiency, the proposed controller enables the charger to provide support to the interconnection voltage to counter and damp its transients. Existing solutions are either hardware-based such as using supercapacitors and flywheels which increase the cost and bulkiness of the charging station, or software-based such as <tex>$P/V$</tex> droop methods which are still unable to provide a robust and strong voltage support. This paper proposes an emulated supercapacitor concept in the control system of the ultra-fast EV charger in an islanded DC microgrid. Thus, it converts the EV from a static load to a bus voltage supportive load, leading to reduced bus voltage oscillations during single and multiple ultra-fast EV charging operations, and rides through and provides supports during extreme external disturbances. Detailed analysis and design guidelines of the proposed controller are presented, and its effectiveness and improved performance compared with conventional techniques are shown for different case studies.https://ieeexplore.ieee.org/document/10018858/Electric vehicle (EV)charging stationultra-fast chargingDC microgridvoltage supportcapacitor emulation |
| spellingShingle | Noushin Poursafar Seyedfoad Taghizadeh M. Jahangir Hossain Masoud Karimi-Ghartemani A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids Journal of Modern Power Systems and Clean Energy Electric vehicle (EV) charging station ultra-fast charging DC microgrid voltage support capacitor emulation |
| title | A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids |
| title_full | A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids |
| title_fullStr | A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids |
| title_full_unstemmed | A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids |
| title_short | A Voltage-supportive Controller for Ultra-fast Electric Vehicle Chargers in Islanded DC Microgrids |
| title_sort | voltage supportive controller for ultra fast electric vehicle chargers in islanded dc microgrids |
| topic | Electric vehicle (EV) charging station ultra-fast charging DC microgrid voltage support capacitor emulation |
| url | https://ieeexplore.ieee.org/document/10018858/ |
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