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126282

Optimal Operation of Electronically-Coupled MicroGrids.

Article

Last updated: 22 Jan 2023

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Tags

Electrical Engineering

Abstract

MicroGrids are power generation and distribution systems in which users and generators are in close proximity, They usually have limited power generation capacity, and are networked together to meet a small area's load demand. MicroGrid, (MG) car operate interconnected to the main power network or be operated autonomously, if they are isolated from the power grid (islanded mode). The interconnection of large amounts of nontraditional generation causes problems in a network designed for conventional operation. The use of power electronics interfaces offers a potential solution. 
This paper presents a generalized formulation to determine the optimal operating strategy and cost optimization scheme for an electronically-coupled MicroGrid. The major objective is to minimize the overall operating cost considering both the p < strong>ower system and power electronics constraints in the two modes of the MG operation. The paper also presents steady-state, fundamental-frequency models of power electronic converters systems for coupling distributed generation (DG) units to the utility power grid based on Newton-Raplison and the developed models. A feature of the proposed approach is that it solves for the internal variables of each DG unit. A Matlab program is developed to represent the proposed algorithm. The program is tested in various network conditions and verified by applying it to a MG with three DG units from which two units are electronically-coupled to the grid in the two modes of operations. 

DOI

10.21608/bfemu.2020.126282

Keywords

microgrid, Distributed generation, optimal operation, Power flow, Power electronics, Converters

Authors

First Name

Sahar

Last Name

Kaddah

MiddleName

Sidky Al-Hefni

Affiliation

Professor of Electrical Engineering Department,. Faculty of Engineering., Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

First Name

Magdi

Last Name

El-Saadawi

MiddleName

Mohamed Ali

Affiliation

Professor of Electrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Email

m_saadawi@mans.edu.eg

City

Mansoura

Orcid

-

First Name

A.

Last Name

Rabie

MiddleName

A.

Affiliation

Electrical Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Email

-

City

Mansoura

Orcid

-

Volume

36

Article Issue

2

Related Issue

17856

Issue Date

2011-06-01

Receive Date

2011-04-11

Publish Date

2020-11-27

Page Start

22

Page End

32

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 36_Issue 2_Pages 22-32.pdf

PDF . 211.2kB

Link

https://bfemu.journals.ekb.eg/article_126282.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=126282

Order

7

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

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Article

Created At

22 Jan 2023