The Experts below are selected from a list of 17826 Experts worldwide ranked by ideXlab platform
Mehdi Hosseinzadeh - One of the best experts on this subject based on the ideXlab platform.
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Power management of an isolated hybrid AC/DC micro-grid with fuzzy control of battery banks
Iet Renewable Power Generation, 2015Co-Authors: Mehdi Hosseinzadeh, Farzad Rajaei SalmasiAbstract:This study focuses on the development of a supervisory control scheme for power management and operation of an isolated hybrid AC/DC micro-grid, which consists of an AC micro-grid and a DC micro-grid. In the proposed hybrid micro-grid, wind and diesel generators and AC loads are connected to the AC micro-grid, whereas photovoltaic array and DC loads are tied to the DC micro-grid. Moreover, the authors consider two independent battery banks in the AC and DC Micro-Grids. Furthermore, the AC and the DC Micro-Grids are coupled through a bidirectional converter, which can act as an inverter or rectifier. The objectives of the proposed supervisory controller are listed as follows: (i) maximum utilisation of renewable energy sources along with satisfying the load power demand in both AC and DC Micro-Grids, (ii) maintaining state of charge (SOC) of battery banks in both AC and DC Micro-Grids and (iii) managing the power exchange between the AC and the DC Micro-Grids while the reliability of the whole system is taken into account. The supervisory controller is formalised using a state machine approach. For these purposes, 15 distinct operation modes are considered. Furthermore, in order to extend the battery life cycle, a fuzzy controller manages the desired SOC controlling the charge and discharge currents. The effectiveness of the proposed supervisory controller is evaluated through extensive numerical simulations.
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Power management of an isolated hybrid AC/DC micro-grid with fuzzy control of battery banks
IET Renewable Power Generation, 2015Co-Authors: Farzad Rajaei Salmasi, Mehdi HosseinzadehAbstract:This study focuses on the development of a supervisory control scheme for power management and operation of an isolated hybrid AC/DC micro-grid, which consists of an AC micro-grid and a DC micro-grid. In the proposed hybrid micro-grid, wind and diesel generators and AC loads are connected to the AC micro-grid, whereas photovoltaic array and DC loads are tied to the DC micro-grid. Moreover, the authors consider two independent battery banks in the AC and DC Micro-Grids. Furthermore, the AC and the DC Micro-Grids are coupled through a bidirectional converter, which can act as an inverter or rectifier. The objectives of the proposed supervisory controller are listed as follows: (i) maximum utilisation of renewable energy sources along with satisfying the load power demand in both AC and DC Micro-Grids, (ii) maintaining state of charge (SOC) of battery banks in both AC and DC Micro-Grids and (iii) managing the power exchange between the AC and the DC Micro-Grids while the reliability of the whole system is taken into account. The supervisory controller is formalised using a state machine approach. For these purposes, 15 distinct operation modes are considered. Furthermore, in order to extend the battery life cycle, a fuzzy controller manages the desired SOC controlling the charge and discharge currents. The effectiveness of the proposed supervisory controller is evaluated through extensive numerical simulations.
Farzad Rajaei Salmasi - One of the best experts on this subject based on the ideXlab platform.
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Power management of an isolated hybrid AC/DC micro-grid with fuzzy control of battery banks
Iet Renewable Power Generation, 2015Co-Authors: Mehdi Hosseinzadeh, Farzad Rajaei SalmasiAbstract:This study focuses on the development of a supervisory control scheme for power management and operation of an isolated hybrid AC/DC micro-grid, which consists of an AC micro-grid and a DC micro-grid. In the proposed hybrid micro-grid, wind and diesel generators and AC loads are connected to the AC micro-grid, whereas photovoltaic array and DC loads are tied to the DC micro-grid. Moreover, the authors consider two independent battery banks in the AC and DC Micro-Grids. Furthermore, the AC and the DC Micro-Grids are coupled through a bidirectional converter, which can act as an inverter or rectifier. The objectives of the proposed supervisory controller are listed as follows: (i) maximum utilisation of renewable energy sources along with satisfying the load power demand in both AC and DC Micro-Grids, (ii) maintaining state of charge (SOC) of battery banks in both AC and DC Micro-Grids and (iii) managing the power exchange between the AC and the DC Micro-Grids while the reliability of the whole system is taken into account. The supervisory controller is formalised using a state machine approach. For these purposes, 15 distinct operation modes are considered. Furthermore, in order to extend the battery life cycle, a fuzzy controller manages the desired SOC controlling the charge and discharge currents. The effectiveness of the proposed supervisory controller is evaluated through extensive numerical simulations.
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Power management of an isolated hybrid AC/DC micro-grid with fuzzy control of battery banks
IET Renewable Power Generation, 2015Co-Authors: Farzad Rajaei Salmasi, Mehdi HosseinzadehAbstract:This study focuses on the development of a supervisory control scheme for power management and operation of an isolated hybrid AC/DC micro-grid, which consists of an AC micro-grid and a DC micro-grid. In the proposed hybrid micro-grid, wind and diesel generators and AC loads are connected to the AC micro-grid, whereas photovoltaic array and DC loads are tied to the DC micro-grid. Moreover, the authors consider two independent battery banks in the AC and DC Micro-Grids. Furthermore, the AC and the DC Micro-Grids are coupled through a bidirectional converter, which can act as an inverter or rectifier. The objectives of the proposed supervisory controller are listed as follows: (i) maximum utilisation of renewable energy sources along with satisfying the load power demand in both AC and DC Micro-Grids, (ii) maintaining state of charge (SOC) of battery banks in both AC and DC Micro-Grids and (iii) managing the power exchange between the AC and the DC Micro-Grids while the reliability of the whole system is taken into account. The supervisory controller is formalised using a state machine approach. For these purposes, 15 distinct operation modes are considered. Furthermore, in order to extend the battery life cycle, a fuzzy controller manages the desired SOC controlling the charge and discharge currents. The effectiveness of the proposed supervisory controller is evaluated through extensive numerical simulations.
Ivan Stojmenovic - One of the best experts on this subject based on the ideXlab platform.
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On Optimally Reducing Power Loss in Micro-Grids With Power Storage Devices
IEEE Journal on Selected Areas in Communications, 2014Co-Authors: Chao Wei, Nei Kato, Zubair Md. Fadlullah, Ivan StojmenovicAbstract:Smart Micro-Grids can produce “renewable” energy and store them in power storage devices. Power loss, however, is a significant problem in power exchange among the Micro-Grids and between the macro-station and individual Micro-Grids. To optimally reduce the total power losses in such a power grid system, in this paper, a greedy coalition formation algorithm is proposed, which allows the macro-station to coordinate mutual power exchange among the Micro-Grids and between each micro-grid and the macro-station. Our algorithm optimizes the total power losses across the entire power grid, including the cost of charging and discharging power storage devices and power losses due to power transfers. The algorithm creates exchange pairs among the Micro-Grids, giving priority to pairs with higher power loss reduction per exchanged power unit. Through computer-based simulations, we demonstrate that the proposed approach significantly reduces the average power loss compared with the conventional noncooperative method. The simulations also demonstrate that the communications overhead of our proposal (due to negotiations aimed at forming coalitions) does not significantly affect the available communication resource.
Abd El Aziz M. Mansour - One of the best experts on this subject based on the ideXlab platform.
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A novel control strategy for grid connected hybrid renewable energy systems using improved particle swarm optimization
Ain Shams Engineering Journal, 2017Co-Authors: Naggar H. Saad, Ahmed A. Sattar, Abd El Aziz M. MansourAbstract:Abstract This paper proposes a novel hybrid centralized and distributed control of hybrid renewable energy system consisting of AC/DC micro grids. An Interlinking Converter (IC) is used to connect both sides of the micro grid systems together. Improved Particle Swarm Optimization (IPSO) which acts as a master controller is used to control the power of the sources based on {IC} control. Also, there are different slave controllers for 100 kW photovoltaic, fuel cells and 100 kW wind, which are designed to supply continuous load power. Coordination between two grids is satisfied through droop control for both {AC} and {DC} micro grids to achieve power sharing process and control of renewable energy sources supplying different loads. The model has been implemented in MATLAB/SIMULINK. The proposed controller succeeded to manage energy between micro grids under different scenarios. The control technique using {IPSO} strategy improves the dynamics of the hybrid system connected to the grid.
Daniela Trombetti - One of the best experts on this subject based on the ideXlab platform.
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Distribution loss minimization by token ring control of power electronic interfaces in residential microgrids
IEEE Transactions on Industrial Electronics, 2012Co-Authors: Paolo Tenti, Paolo Mattavelli, Alessandro Costabeber, Daniela TrombettiAbstract:Smart grids offer a new application domain for power electronics. In fact, every Distributed Energy Resource (DER) includes an Electronic Power Processor (EPP) to govern the power exchange with the grid. Such distributed EPPs should perform cooperatively to take full advantage of smart grid potentiality (exploitation of renewable energy sources, power quality and transmission efficiency). In low-voltage residential Micro-Grids, where number and type of DERs and loads is unpredictable and may vary during daytime, cooperative operation can be achieved by simple cross-communication among neighbor EPPs, without centralized supervisor or additional control units. The paper describes the principles of such cooperative operation together with a communication and control architecture which allows exploitation of micro-grid capabilities without infrastructural investments.
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distribution loss minimization by token ring control of power electronic interfaces in residential micro grids
International Symposium on Industrial Electronics, 2010Co-Authors: Paolo Tenti, Daniela Trombetti, Alessandro Costabeber, Paolo MattavelliAbstract:Smart grids offer a new application domain for power electronics. In fact, every Distributed Energy Resource (DER) includes an Electronic Power Processor (EPP) to govern the power exchange with the grid. Such distributed EPPs should perform cooperatively to take full advantage of smart grid potentiality (exploitation of renewable energy sources, power quality and transmission efficiency). In low-voltage residential Micro-Grids, where number and type of DERs and loads is unpredictable and may vary during daytime, cooperative operation can be achieved by simple cross-communication among neighbor EPPs, without centralized supervisor or additional control units. The paper describes the principles of such cooperative operation together with a communication and control architecture which allows exploitation of micro-grid capabilities without infrastructural investments.
