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317196

A Modified Adaptive Droop Control for Improved Load Sharing in Microgrids Considering DG Boundary Limits

Article

Last updated: 28 Dec 2024

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Abstract

The focus of the paper is on addressing a crucial aspect of microgrid operation, namely the need for efficient load sharing. In microgrids that employ high angle droop control, achieving optimal load sharing can be challenging and can potentially lead to instability. To overcome this issue, the paper proposes a modified adaptive droop control technique that stabilizes the system while ensuring appropriate load sharing. The technique involves controlling each distributed generator converter separately using high angle droop gains and a droop approach that predicts grid characteristics such as voltage, frequency, and impedance angle and magnitude. Active and reactive power can be injected into the grid separately, and a suitable dynamic can be introduced independent of the grid impedance's magnitude and phase. This ensures that the system remains stable and performs optimally, even under varying load conditions. Furthermore, during the load sharing process, the DG units have the potential to reach their maximum limits, which can lead to the collapse of the microgrid. To address this issue, a control strategy is introduced in this paper to alleviate the overloading experienced by the microgrid's units. The proposed modified adaptive droop control loop was tested on a microgrid test system, and simulation results demonstrate the effectiveness of the technique in achieving optimal load sharing while maintaining system stability. Overall, the paper provides valuable insights into the design and implementation of control strategies for microgrids, which can enhance their performance and reliability.

DOI

10.21608/ijaes.2023.215062.1018

Keywords

Proportional Control System, Power Allocation, Power Grid Characteristics, Decentralized Power Generation, Local Grid

Authors

First Name

Ahmed

Last Name

Rashwan

MiddleName

-

Affiliation

aswan university

Email

engrashwan@aswu.edu.eg

City

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Orcid

-

Volume

6

Article Issue

1

Related Issue

43606

Issue Date

2024-01-01

Receive Date

2023-06-02

Publish Date

2024-01-01

Page Start

1

Page End

11

Print ISSN

2636-3712

Online ISSN

2636-3720

Link

https://ijaes.journals.ekb.eg/article_317196.html

Detail API

https://ijaes.journals.ekb.eg/service?article_code=317196

Order

317,196

Type

Original papers

Type Code

1,889

Publication Type

Journal

Publication Title

International Journal of Applied Energy Systems

Publication Link

https://ijaes.journals.ekb.eg/

MainTitle

A Modified Adaptive Droop Control for Improved Load Sharing in Microgrids Considering DG Boundary Limits

Details

Type

Article

Created At

28 Dec 2024