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 Astero; 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 Astero
, Matti Lehtonen

Aswan University
Sohag University
South Valley University
American University of Sharjah

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

5 Citations (Scopus)

23 Downloads (Pure)

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 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

Funding

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.

Keywords

Isolated Microgrid
Synchronous generator and Voltage source converter
Virtual Inertia

Access to Document

10.1109/MEPCON55441.2022.10021786

A_Droop-Based_Frequency_Controller_for_Parallel_Operation_of_VSCs_and_SG_in_Isolated_MicrogridsAccepted author manuscript, 564 KB

Cite this

Hafez, W. A., Mahmoud, K., Ali, A., Shaaban, M. F., Astero, P., & 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

@inproceedings{e720361380d44efabc58ac590695f318,

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

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.",

keywords = "Isolated Microgrid, Synchronous generator and Voltage source converter, Virtual Inertia",

author = "Hafez, \{Wessam Arafa\} and Karar Mahmoud and Abdelfatah Ali and Shaaban, \{Mostafa F.\} and Poria Astero and Matti Lehtonen",

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",

year = "2023",

month = jan,

day = "26",

doi = "10.1109/MEPCON55441.2022.10021786",

language = "English",

series = "2022 23rd International Middle East Power Systems Conference, MEPCON 2022",

publisher = "IEEE",

booktitle = "2022 23rd International Middle East Power Systems Conference, MEPCON 2022",

address = "United States",

}

Hafez, WA, Mahmoud, K, Ali, A, Shaaban, MF, Astero, P & 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 article in proceedings › Scientific › peer-review

TY - GEN

T1 - A Droop-Based Frequency Controller for Parallel Operation of VSCs and SG in Isolated Microgrids

AU - Hafez, Wessam Arafa

AU - Mahmoud, Karar

AU - Ali, Abdelfatah

AU - Shaaban, Mostafa F.

AU - Astero, Poria

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.

PY - 2023/1/26

Y1 - 2023/1/26

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.

KW - Isolated Microgrid

KW - Synchronous generator and Voltage source converter

KW - Virtual Inertia

UR - https://www.scopus.com/pages/publications/85147699555

U2 - 10.1109/MEPCON55441.2022.10021786

DO - 10.1109/MEPCON55441.2022.10021786

M3 - Conference article in proceedings

AN - SCOPUS:85147699555

T3 - 2022 23rd International Middle East Power Systems Conference, MEPCON 2022

BT - 2022 23rd International Middle East Power Systems Conference, MEPCON 2022

PB - IEEE

T2 - International Middle East Power Systems Conference

Y2 - 13 December 2022 through 15 December 2022

ER -

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

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cloud Inertia: Cloud-based Intelligent and Robust Power Grid Control Algorithms

Cite this

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

Abstract

Publication series

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Cloud Inertia: Cloud-based Intelligent and Robust Power Grid Control Algorithms

Cite this