A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids

Wessam Arafa Hafez; Karar Mahmoud; Abdelfatah Ali; Mostafa F. Shaaban; Poria Hasanpor Divshali; Matti Lehtonen

doi:10.1109/MEPCON55441.2022.10021786

A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids

Wessam Arafa Hafez, Karar Mahmoud, Abdelfatah Ali, Mostafa F. Shaaban, Poria Hasanpor Divshali, Matti Lehtonen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Abstract

Microgrids are a novel concept for modern power distribution networks that integrate renewable power sources and increase power control capabilities. This system's essential problem is controlling the frequency in island mode. Using the synchronous generator (SG) control approach, the microgrid frequency is more stable due to the inertial features of the SG. In this regard, this paper presents a control algorithm for voltage source converters (VSC)-based distributed generators (DGs), which emulates the principal behavior of synchronous machines and can support inertia to the grid and reduce frequency gradients considering the parallel operation of the SG. The controller is designed based on droop control theory, and a supervisory center controller is implemented to maintain system frequency close to a nominal value of the whole microgrid. The simulation results demonstrate that the system frequency is stabilized even in different and sudden load changes in the island mode where the microgrid is fed by multiple VSC units and a SG. The Simulink model of the system is designed using MATLAB Simulink Software.

Original language	English
Title of host publication	2022 23rd International Middle East Power Systems Conference, MEPCON 2022
Publisher	IEEE
Number of pages	6
ISBN (Electronic)	978-1-6654-6363-8
DOIs	https://doi.org/10.1109/MEPCON55441.2022.10021786
Publication status	Published - 26 Jan 2023
MoE publication type	A4 Article in a conference publication
Event	International Middle East Power Systems Conference - Cairo, Egypt Duration: 13 Dec 2022 → 15 Dec 2022

Publication series

Name	2022 23rd International Middle East Power Systems Conference, MEPCON 2022

Conference

Conference	International Middle East Power Systems Conference
Abbreviated title	MEPCON
Country/Territory	Egypt
City	Cairo
Period	13/12/2022 → 15/12/2022

Keywords

Isolated Microgrid
Synchronous generator and Voltage source converter
Virtual Inertia

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/MEPCON55441.2022.10021786

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Hafez, W. A., Mahmoud, K., Ali, A., Shaaban, M. F., Divshali, P. H., & Lehtonen, M. (2023). A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids. In 2022 23rd International Middle East Power Systems Conference, MEPCON 2022 (2022 23rd International Middle East Power Systems Conference, MEPCON 2022). IEEE. https://doi.org/10.1109/MEPCON55441.2022.10021786

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abstract = "Microgrids are a novel concept for modern power distribution networks that integrate renewable power sources and increase power control capabilities. This system's essential problem is controlling the frequency in island mode. Using the synchronous generator (SG) control approach, the microgrid frequency is more stable due to the inertial features of the SG. In this regard, this paper presents a control algorithm for voltage source converters (VSC)-based distributed generators (DGs), which emulates the principal behavior of synchronous machines and can support inertia to the grid and reduce frequency gradients considering the parallel operation of the SG. The controller is designed based on droop control theory, and a supervisory center controller is implemented to maintain system frequency close to a nominal value of the whole microgrid. The simulation results demonstrate that the system frequency is stabilized even in different and sudden load changes in the island mode where the microgrid is fed by multiple VSC units and a SG. The Simulink model of the system is designed using MATLAB Simulink Software.",

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note = "Funding Information: ACKNOWLEDGMENT This work was supported by the Academy of Finland under project Cloud Inertia (Cloud-based Intelligent and Robust Power Grid Control Algorithms), funding decision 342857. Publisher Copyright: {\textcopyright} 2022 IEEE.; International Middle East Power Systems Conference, MEPCON ; Conference date: 13-12-2022 Through 15-12-2022",

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Hafez, WA, Mahmoud, K, Ali, A, Shaaban, MF, Divshali, PH & Lehtonen, M 2023, A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids. in 2022 23rd International Middle East Power Systems Conference, MEPCON 2022. 2022 23rd International Middle East Power Systems Conference, MEPCON 2022, IEEE, International Middle East Power Systems Conference, Cairo, Egypt, 13/12/2022. https://doi.org/10.1109/MEPCON55441.2022.10021786

A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids. / Hafez, Wessam Arafa; Mahmoud, Karar; Ali, Abdelfatah et al.

2022 23rd International Middle East Power Systems Conference, MEPCON 2022. IEEE, 2023. (2022 23rd International Middle East Power Systems Conference, MEPCON 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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AU - Ali, Abdelfatah

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AU - Divshali, Poria Hasanpor

AU - Lehtonen, Matti

N1 - Funding Information: ACKNOWLEDGMENT This work was supported by the Academy of Finland under project Cloud Inertia (Cloud-based Intelligent and Robust Power Grid Control Algorithms), funding decision 342857. Publisher Copyright: © 2022 IEEE.

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N2 - Microgrids are a novel concept for modern power distribution networks that integrate renewable power sources and increase power control capabilities. This system's essential problem is controlling the frequency in island mode. Using the synchronous generator (SG) control approach, the microgrid frequency is more stable due to the inertial features of the SG. In this regard, this paper presents a control algorithm for voltage source converters (VSC)-based distributed generators (DGs), which emulates the principal behavior of synchronous machines and can support inertia to the grid and reduce frequency gradients considering the parallel operation of the SG. The controller is designed based on droop control theory, and a supervisory center controller is implemented to maintain system frequency close to a nominal value of the whole microgrid. The simulation results demonstrate that the system frequency is stabilized even in different and sudden load changes in the island mode where the microgrid is fed by multiple VSC units and a SG. The Simulink model of the system is designed using MATLAB Simulink Software.

AB - Microgrids are a novel concept for modern power distribution networks that integrate renewable power sources and increase power control capabilities. This system's essential problem is controlling the frequency in island mode. Using the synchronous generator (SG) control approach, the microgrid frequency is more stable due to the inertial features of the SG. In this regard, this paper presents a control algorithm for voltage source converters (VSC)-based distributed generators (DGs), which emulates the principal behavior of synchronous machines and can support inertia to the grid and reduce frequency gradients considering the parallel operation of the SG. The controller is designed based on droop control theory, and a supervisory center controller is implemented to maintain system frequency close to a nominal value of the whole microgrid. The simulation results demonstrate that the system frequency is stabilized even in different and sudden load changes in the island mode where the microgrid is fed by multiple VSC units and a SG. The Simulink model of the system is designed using MATLAB Simulink Software.

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A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids

Abstract

Publication series

Conference

Keywords

UN SDGs

Access to Document

OpenUrl availability

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Cloud Inertia

Cite this

A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids

Abstract

Publication series

Conference

Keywords

UN SDGs

Access to Document

OpenUrl availability

Other files and links

Fingerprint

Projects

Cloud Inertia

Cite this