Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer
The advancement of power electronic-based sensitive loads drives the power utilities’ devotion to power quality issues. The voltage disturbance could be happening due to fault conditions, switching of loads, energizing of transformers, or integration of highly intermittent energy sources such as PV...
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doaj-620b62099d1e4b01ac1999b351cbabe72020-11-25T04:01:37ZengMDPI AGEnergies1996-10732020-11-01135742574210.3390/en13215742Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage RestorerEmiyamrew Minaye Molla0Cheng-Chien Kuo1Department of Electrical Engineering, National Taiwan University of Science and Technology, 43, Sec. 4, Keelung Rd., Da’an District, Taipei City 10607, TaiwanDepartment of Electrical Engineering, National Taiwan University of Science and Technology, 43, Sec. 4, Keelung Rd., Da’an District, Taipei City 10607, TaiwanThe advancement of power electronic-based sensitive loads drives the power utilities’ devotion to power quality issues. The voltage disturbance could be happening due to fault conditions, switching of loads, energizing of transformers, or integration of highly intermittent energy sources such as PV systems. This research work attempts to enhance the voltage fluctuation of a sensitive load connected to a grid-integrated PV system using a battery-based dynamic voltage restorer (DVR). The proposed battery energy storage-based DVR has two separate controlling stages that are implemented at the DC–DC buck/boost converter of the battery and voltage source converter (VSC) system. Charging and discharging of the battery is operated based on the state-of-charge (SOC) value of the battery and the measured root mean square (RMS) voltage at the point of common coupling (PCC). The VSC of the DVR detection and reference generation control is done appropriately. In the detection control of the VSC, a combination of RMS and dq0 measurement techniques is used, whereas in the reference generation control, pre-fault strategy is implemented to restore both phase jump and magnitude distortions. Symmetrical and asymmetrical voltage sags scenarios are considered and the compensation demonstration is carried out using power system computer-aided design (PSCAD/EMTDC) software.https://www.mdpi.com/1996-1073/13/21/5742convertersdynamic voltage restorer (DVR)photovoltaic systemspower distribution faultspower filtersstate of charge (SOC) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Emiyamrew Minaye Molla Cheng-Chien Kuo |
spellingShingle |
Emiyamrew Minaye Molla Cheng-Chien Kuo Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer Energies converters dynamic voltage restorer (DVR) photovoltaic systems power distribution faults power filters state of charge (SOC) |
author_facet |
Emiyamrew Minaye Molla Cheng-Chien Kuo |
author_sort |
Emiyamrew Minaye Molla |
title |
Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer |
title_short |
Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer |
title_full |
Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer |
title_fullStr |
Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer |
title_full_unstemmed |
Voltage Quality Enhancement of Grid-Integrated PV System Using Battery-Based Dynamic Voltage Restorer |
title_sort |
voltage quality enhancement of grid-integrated pv system using battery-based dynamic voltage restorer |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2020-11-01 |
description |
The advancement of power electronic-based sensitive loads drives the power utilities’ devotion to power quality issues. The voltage disturbance could be happening due to fault conditions, switching of loads, energizing of transformers, or integration of highly intermittent energy sources such as PV systems. This research work attempts to enhance the voltage fluctuation of a sensitive load connected to a grid-integrated PV system using a battery-based dynamic voltage restorer (DVR). The proposed battery energy storage-based DVR has two separate controlling stages that are implemented at the DC–DC buck/boost converter of the battery and voltage source converter (VSC) system. Charging and discharging of the battery is operated based on the state-of-charge (SOC) value of the battery and the measured root mean square (RMS) voltage at the point of common coupling (PCC). The VSC of the DVR detection and reference generation control is done appropriately. In the detection control of the VSC, a combination of RMS and dq0 measurement techniques is used, whereas in the reference generation control, pre-fault strategy is implemented to restore both phase jump and magnitude distortions. Symmetrical and asymmetrical voltage sags scenarios are considered and the compensation demonstration is carried out using power system computer-aided design (PSCAD/EMTDC) software. |
topic |
converters dynamic voltage restorer (DVR) photovoltaic systems power distribution faults power filters state of charge (SOC) |
url |
https://www.mdpi.com/1996-1073/13/21/5742 |
work_keys_str_mv |
AT emiyamrewminayemolla voltagequalityenhancementofgridintegratedpvsystemusingbatterybaseddynamicvoltagerestorer AT chengchienkuo voltagequalityenhancementofgridintegratedpvsystemusingbatterybaseddynamicvoltagerestorer |
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