ORCID Profile
0000-0002-8755-1176
Current Organisation
Deakin University
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Electrical and Electronic Engineering | Electrical Engineering |
Electricity transmission | Electricity services and utilities | Solar-photoelectric | Renewable energy | Energy distribution not elsewhere classified
Publisher: IEEE
Date: 10-2014
Publisher: MDPI AG
Date: 28-07-2021
DOI: 10.3390/ELECTRONICS10151803
Abstract: This article presents the development of a platform for real-time monitoring of multi-microgrids. A small-scale platform has been developed and implemented as a prototype, which takes data from various types of devices located at a distance from each other. The monitoring platform is interoperable, as it allows several protocols to coexist. While the developed prototype is tested on small-scale distributed energy resources (DERs), it is done in a way to extend the concept for monitoring several microgrids in real scales. Monitoring strategies were developed for DERs by making a customized two-way communication channel between the microgrids and the monitoring center using a long-range bridged wireless local area network (WLAN). In addition, an informative and easy-to-use software dashboard was developed. The dashboard shows real-time information and measurements from the DERs—providing the user with a holistic view of the status of the DERs. The proposed system is scalable, modular, facilitates the interoperability of various types of inverters, and communicates data over a secure communication channel. All these features along with its relatively low cost make the developed real-time monitoring platform very useful for online monitoring of smart microgrids.
Publisher: Informa UK Limited
Date: 16-06-2015
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 02-2012
Publisher: IEEE
Date: 04-2019
Publisher: IEEE
Date: 09-2008
Publisher: MDPI AG
Date: 12-06-2023
DOI: 10.3390/EN16124650
Abstract: This paper proposes a hierarchical multi-stage approach based on a distributed level phasor measurement unit (µPMU) at local controllers and a phasor data concentrator (PDC) at the central control unit to restore system voltage when it exceeds the limits recommended by the IEEE 1547-2018 standard. The proposed algorithm does not need an accurate system model or employ optimization solutions. Therefore, it has less implementation complexity and would be popular among distribution network service providers (DNSPs) and distribution network operators (DNOs) as it does not suffer from cost and computational complexity limitations. A PMU-PDC-based communication platform has been developed as a more efficient alternative to the supervisory control and data acquisition (SCADA) system, and provides superior characteristics, including a higher s le rate, higher data resolutions, and faster communication. The proposed coordinated algorithm aims to postpone power generation curtailment in distributed energy resources (DERs) with overvoltage problems (local DERs) by incorporating all the DERs that are not subjected to voltage violation (remote DERs) by absorbing their maximum reactive power capacity. If the system voltage has not recovered after absorbing all of the reactive power capacity of all the DERs, a reduced active power curtailment proposed by the algorithm is then applied to the system to control the voltage. The proposed strategy has been simulated in MATLAB and applied to IEEE 13-bus and IEEE 33-bus radial distribution benchmark systems to validate the performance of the system, in terms of its ability to coordinate voltage control and the accuracy of the PMU-PDC-based communication interface.
Publisher: IEEE
Date: 07-2009
Publisher: IEEE
Date: 12-2010
Publisher: IEEE
Date: 06-2011
Publisher: IEEE
Date: 04-2018
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2008
Publisher: MDPI AG
Date: 10-08-2021
DOI: 10.3390/EN14164893
Abstract: The droop control scheme based on Q − ω and P − V characteristics is conventionally employed to share the load power among sources in an islanded low-voltage microgrid with resistive line impedances. However, it suffers from poor active power sharing, and is vulnerable to sustained deviations in frequency and voltage. Therefore, accurate power sharing and maintaining the frequency and voltage in the desired ranges are challenging. This paper proposes a novel microgrid control strategy to address these issues. The proposed strategy consists of a virtual flux droop and a model predictive control, in which the virtual flux is the time integral of the voltage. Firstly, the novel virtual flux droop control is proposed to accurately control the power sharing among DGs. Then, the model predictive flux control is employed to generate the appropriate switching signals. The proposed strategy is simple without needing multiple feedback control loops. In addition, pulse width modulation is not required and tuning challenges for PI regulators are avoided. In order to evaluate the effectiveness of the proposed microgrid control strategy, simulation analysis is carried out in Matlab/Simulink software environment. The results show that accurate power sharing is achieved while a good dynamic response is provided. Furthermore, the voltage and frequency deviations are significantly improved.
Publisher: Elsevier BV
Date: 06-2010
Publisher: IEEE
Date: 11-2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2014
Publisher: IEEE
Date: 02-2018
Publisher: Elsevier BV
Date: 03-2013
Publisher: Sultan Qaboos University
Date: 31-01-2018
DOI: 10.24200/TJER.VOL15ISS1PP1-13
Abstract: Economic dispatch is an important optimization problem in power system planning. This article presents an overview of the economic dispatch formulation, its objective, loss coefficient determination, and a case study. In the case study, different scenarios of the economic dispatch in the main interconnected system (MIS) of Oman were considered to highlight the importance of considering losses in the optimization process.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 11-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 02-2010
Publisher: IEEE
Date: 09-2008
Publisher: Elsevier BV
Date: 10-2013
Publisher: Elsevier BV
Date: 08-2011
Publisher: IEEE
Date: 09-2008
Publisher: IEEE
Date: 06-2013
Publisher: IEEE
Date: 03-2011
Publisher: Springer International Publishing
Date: 13-10-2016
Publisher: IEEE
Date: 12-2010
Publisher: Elsevier BV
Date: 12-2012
Publisher: IEEE
Date: 12-2007
Publisher: IEEE
Date: 04-2016
Publisher: Sultan Qaboos University
Date: 31-01-2018
DOI: 10.24200/TJER.VOL15ISS1PP61-72
Abstract: This paper investigates the possibility of constructing multi-microgrids by interlinking the rural area systems in the Al Wusta governorate of the Sultanate of Oman, which are currently being supplied by diesel generators. It is proposed to enhance the rural system under study by switching off small diesel stations and replacing them with wind turbines. The microgrids formed in this way are then interlinked together to create multi-microgrids. The paper studies the interlinked multi-microgrids under different scenarios in terms of voltage profiles and power flow using the ETAP software package. This study contributes to the feasibility study of retiring some diesel power plants and using renewable energy resources in rural Oman.
Publisher: IEEE
Date: 11-2007
Publisher: IEEE
Date: 12-2010
Publisher: IEEE
Date: 02-2015
Publisher: IEEE
Date: 02-2015
Publisher: IEEE
Date: 07-2009
Publisher: IEEE
Date: 11-2011
Publisher: MDPI AG
Date: 07-01-2021
DOI: 10.3390/ELECTRONICS10020115
Abstract: The main purpose of developing microgrids (MGs) is to facilitate the integration of renewable energy sources (RESs) into the power grid. RESs are normally connected to the grid via power electronic inverters. As various types of RESs are increasingly being connected to the electrical power grid, power systems of the near future will have more inverter-based generators (IBGs) instead of synchronous machines. Since IBGs have significant differences in their characteristics compared to synchronous generators (SGs), particularly concerning their inertia and capability to provide reactive power, their impacts on the system dynamics are different compared to SGs. In particular, system stability analysis will require new approaches. As such, research is currently being conducted on the stability of power systems with the inclusion of IBGs. This review article is intended to be a preface to the Special Issue on Voltage Stability of Microgrids in Power Systems. It presents a comprehensive review of the literature on voltage stability of power systems with a relatively high percentage of IBGs in the generation mix of the system. As the research is developing rapidly in this field, it is understood that by the time that this article is published, and further in the future, there will be many more new developments in this area. Certainly, other articles in this special issue will highlight some other important aspects of the voltage stability of microgrids.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2011
Publisher: Elsevier BV
Date: 10-2011
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 06-2007
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2011
Publisher: Springer Science and Business Media LLC
Date: 29-03-2012
Publisher: IEEE
Date: 07-2011
Publisher: IEEE
Date: 11-2019
Publisher: IEEE
Date: 07-2010
Publisher: IEEE
Date: 02-2009
Publisher: IEEE
Date: 10-2014
Publisher: IEEE
Date: 02-2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 1999
DOI: 10.1109/60.790950
Publisher: IEEE
Date: 02-2015
Publisher: Elsevier BV
Date: 02-2011
Publisher: IEEE
Date: 20-11-2022
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 08-2010
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 10-2022
Publisher: IEEE
Date: 20-11-2022
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 02-2022
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 1999
DOI: 10.1109/60.815106
Publisher: Institution of Engineering and Technology (IET)
Date: 03-2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2011
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2012
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
Publisher: Institution of Engineering and Technology (IET)
Date: 22-09-2020
Publisher: IEEE
Date: 07-2008
Publisher: Elsevier BV
Date: 12-2002
Publisher: IEEE
Date: 10-2014
Publisher: Inderscience Publishers
Date: 2016
Publisher: MDPI AG
Date: 12-01-2020
DOI: 10.3390/ASI3010005
Abstract: The Smart Grid (SG) is considered as an imminent future power network because of its fault identification and self-healing capabilities. Energy sustainability, renewable energy integration and an efficient control system are the key factors to be considered in developing SG system. Among various SG concepts, the term virtual power plant (VPP) integrates renewable energy to the grid and provides higher operational flexibility, but it requires extra capital costs for control system and software. The operational activities of a smart grid largely depend on the active customer demands. This paper defines and discusses various SG system concepts such as virtual power plant, and active demand in consumer networks, and also presents drivers and roadmaps for development of smart grids worldwide. Furthermore, this work provides an insight into present research and development on smart grids around the world, and sheds light on developing and establishing SG for the Sultanate of Oman.
Publisher: Institution of Engineering and Technology (IET)
Date: 07-2014
Publisher: ACM
Date: 10-07-2023
Start Date: 2005
End Date: 12-2008
Amount: $96,592.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2008
End Date: 06-2009
Amount: $600,000.00
Funder: Australian Research Council
View Funded Activity