Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept

This paper presents a control scheme for virtual synchronous generators (VSGs) in PV inverters, designed to enhance grid frequency and voltage. Through the skillful management of active and reactive power, this control scheme enables PV inverters to interact seamlessly with the main grid in response...

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Main Authors: Noor Aldeen Ghazzawi, Moien Omar, Marwan Mahmoud
Format: Article
Language:English
Published: An-Najah National University 2024-01-01
Series:مجلة جامعة النجاح للأبحاث العلوم الطبيعية
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Online Access:https://journals.najah.edu/media/journals/full_texts/9_cVIsTy3.pdf
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author Noor Aldeen Ghazzawi
Moien Omar
Marwan Mahmoud
author_facet Noor Aldeen Ghazzawi
Moien Omar
Marwan Mahmoud
author_sort Noor Aldeen Ghazzawi
collection DOAJ
description This paper presents a control scheme for virtual synchronous generators (VSGs) in PV inverters, designed to enhance grid frequency and voltage. Through the skillful management of active and reactive power, this control scheme enables PV inverters to interact seamlessly with the main grid in response to grid events, including voltage and frequency fluctuations. The VSG controller is implemented using Matlab Simulink, and its effectiveness is rigorously assessed under various scenarios in a case study involves a 50 kVA rated PV inverter, a 50 kW rated PV system, and a 220 V grid phase voltage. In conditions of low power generation from the PV system (solar radiation of 200 W/m²) and high load power (120 kW and 37.5 kVAr), the load voltage drops to 202.4 V. The VSG controller successfully raises the grid voltage by 17.6 V, stabilizing it at 220 V. Conversely, in scenarios of high PV power generation (solar radiation of 1000 W/m²) and low load power (20 kW and 7.5 kVAr), the grid voltage surges by 10 V, reaching 230 V. The proposed control strategy adeptly fine-tunes the voltage, ultimately stabilizing at 220 V. Additionally, when the frequency deviates within ±0.4 Hz from the nominal frequency of 50 Hz, the proposed control effectively restores the frequency to its nominal value.
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publishDate 2024-01-01
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series مجلة جامعة النجاح للأبحاث العلوم الطبيعية
spelling doaj-art-a7736a9f814b42aabb7c04d9dd70a2a92025-08-20T03:44:03ZengAn-Najah National Universityمجلة جامعة النجاح للأبحاث العلوم الطبيعية1727-21142311-88652024-01-01381606610.35552/anujr.a.38.1.2163Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator conceptNoor Aldeen Ghazzawi0Moien Omar1Marwan Mahmoud2Faculty of Graduate Studies, An-Najah National University, Nablus, PalestineDepartment of Electrical Engineering, Faculty of engineering, An-Najah National University, Nablus, PalestineDepartment of Electrical Engineering, Faculty of engineering, An-Najah National University, Nablus, PalestineThis paper presents a control scheme for virtual synchronous generators (VSGs) in PV inverters, designed to enhance grid frequency and voltage. Through the skillful management of active and reactive power, this control scheme enables PV inverters to interact seamlessly with the main grid in response to grid events, including voltage and frequency fluctuations. The VSG controller is implemented using Matlab Simulink, and its effectiveness is rigorously assessed under various scenarios in a case study involves a 50 kVA rated PV inverter, a 50 kW rated PV system, and a 220 V grid phase voltage. In conditions of low power generation from the PV system (solar radiation of 200 W/m²) and high load power (120 kW and 37.5 kVAr), the load voltage drops to 202.4 V. The VSG controller successfully raises the grid voltage by 17.6 V, stabilizing it at 220 V. Conversely, in scenarios of high PV power generation (solar radiation of 1000 W/m²) and low load power (20 kW and 7.5 kVAr), the grid voltage surges by 10 V, reaching 230 V. The proposed control strategy adeptly fine-tunes the voltage, ultimately stabilizing at 220 V. Additionally, when the frequency deviates within ±0.4 Hz from the nominal frequency of 50 Hz, the proposed control effectively restores the frequency to its nominal value.https://journals.najah.edu/media/journals/full_texts/9_cVIsTy3.pdfpower system stabilityvoltage regulationpv inverter. frequency regulationvirtual synchronous generator (vsg)
spellingShingle Noor Aldeen Ghazzawi
Moien Omar
Marwan Mahmoud
Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
مجلة جامعة النجاح للأبحاث العلوم الطبيعية
power system stability
voltage regulation
pv inverter. frequency regulation
virtual synchronous generator (vsg)
title Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
title_full Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
title_fullStr Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
title_full_unstemmed Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
title_short Control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
title_sort control approach for photovoltaic inverters enhancing the primary grid using the virtual synchronous generator concept
topic power system stability
voltage regulation
pv inverter. frequency regulation
virtual synchronous generator (vsg)
url https://journals.najah.edu/media/journals/full_texts/9_cVIsTy3.pdf
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AT marwanmahmoud controlapproachforphotovoltaicinvertersenhancingtheprimarygridusingthevirtualsynchronousgeneratorconcept