Optimal load balancing strategy for hybrid energy management system in DC microgrid with PV, fuel cell and battery storage

Mane, Sneha; Kadam, Pratik; Lahoti, Gopal; Kazi, Faruk; Singh, Navdeep

doi:10.1109/icrera.2016.7884456

Cited by 26 publications

(7 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hybrid microgrids use relative merits of both AC and DC microgrids, and offers the advantages of both [95]. All DC power sources, like photovoltaic (PV) systems and fuel cell (FC), are connected to DC microgrids through DC-DC boost converters [96]. Similarly, DC loads such as electric vehicles are connected to DC microgrids through DC-DC buck converters.…”

Section: Hybrid Ac-dc Microgridmentioning

confidence: 99%

Electric Vehicles Charging Stations’ Architectures, Criteria, Power Converters, and Control Strategies in Microgrids

Abraham

Verma

Kanagaraj³

et al. 2021

Electronics

View full text Add to dashboard Cite

The usage of electric vehicles (EV) has been increasing over the last few years due to a rise in fossil fuel prices and the rate of increasing carbon dioxide (CO2) emissions. EV-charging stations are powered by existing utility power grid systems, increasing the stress on the utility grid and the load demand at the distribution side. DC grid-based EV charging is more efficient than AC distribution because of its higher reliability, power conversion efficiency, simple interfacing with renewable energy sources (RESs), and integration of energy storage units (ESU). RES-generated power storage in local ESU is an alternative solution for managing the utility grid demand. In addition, to maintain the EV charging demand at the microgrid levels, energy management and control strategies must carefully power the EV battery charging unit. In addition, charging stations require dedicated converter topologies, control strategies, and need to follow set levels and standards. Based on EV, ESU, and RES accessibility, different types of microgrid architecture and control strategies are used to ensure optimum operation at the EV-charging point. Based on the above said merits, this review paper presents different RES-connected architecture and control strategies used in EV-charging stations. It highlights the importance of different charging station architectures with current power converter topologies proposed in the literature. In addition, a comparison of microgrid-based charging station architecture with its energy management, control strategies, and charging converter controls are also presented. The different levels and types of charging stations used for EV charging, in addition to controls and connectors used, are also discussed. An experiment-based energy management strategy was developed to control power flow among the available sources and charging terminals for the effective utilization of generated renewable power. The main motive of the EMS and its control is to maximize the usage of RES consumption. This review also provides the challenges and opportunities in EV-charging, and parameters in selecting appropriate charging stations.

show abstract

Section: Hybrid Ac-dc Microgridmentioning

confidence: 99%

Electric Vehicles Charging Stations’ Architectures, Criteria, Power Converters, and Control Strategies in Microgrids

Abraham

Verma

Kanagaraj³

et al. 2021

Electronics

View full text Add to dashboard Cite

show abstract

“…In cascaded control systems, and as a rule of thumb, the inner voltage loop must have a bandwidth that is three to five times higher than that of the outer power loop to preserve the stability and tracking resolution [14]. The modelling of a microgrid adopting the droop controller is well-established in the literature [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. The inner voltage loop is normally neglected in the modelling because its response time is much faster than the outer droop control loop.…”

Section: System Overviewmentioning

confidence: 99%

“…This might be advantageous when the generation is more than the load which gives the chance inherently to charge the battery if possible [20]. Also, it is worth mentioning that the DC link voltage of the fuel cell-based unit could be controlled by the inverter side controller or by the DC converter controller [21][22][23]. To maintain the consistency and to simplify the modelling, the DC converter is chosen to regulate the DC link voltage knowing that this might degrade the power efficiency.…”

Section: Introductionmentioning

confidence: 99%

Hybrid generators‐based AC microgrid performance assessment in island mode

Issa

Sharkh

Abusara

2019

IET Power Electronics

View full text Add to dashboard Cite

Achieving an accurate steady-state averaged active power sharing between parallel inverters in islanded AC microgrids could be realized by a traditional droop control. For identical inverters having the same droop gains, it is assumed that the transient average power responses will be similar, and no circulating current will flow between the units. However, different line impedances could influence the instantaneous power significantly and thus circulating power flows among the inverters particularly during sudden disturbances such as load changes. This power, if absorbed by an inverter, will lead the DC link voltage to rise abruptly and trip the inverter, thus, degrading the performance of the whole microgrid. The problem becomes worse when hybrid generators are serving as unidirectional power source. This paper assesses the performance of hybrid generators within an islanded microgrid against the mismatch in line impedances. Two schemes to stabilize the microgrid are proposed. In addition, a participation factor analysis is developed to select the most effective controller scheme to bound the DC link voltage and minimize the circulating power. Simulation and experimental results are presented to verify the analysis and the capability of the proposed controller.

show abstract

“…The authors demonstrate the effectiveness of the strategy using simulation and experimentation results. In the same context, in Mane et al [17] the authors propose a flowchart with conditional statement functions of PV, load, and FC powers, as well as the battery state of charge. Simulation results show the effectiveness of the power management strategy.…”

Section: Introductionmentioning

confidence: 99%

Power Management of a Hybrid Micro-Grid with Photovoltaic Production and Hydrogen Storage

bidi¹,

Damour²,

Grondin³

et al. 2021

Energies

View full text Add to dashboard Cite

To deal with energy transition due to climate change and a rise in average global temperature, photovoltaic (PV) conversion appears to be a promising technology in sunny regions. However, PV production is directly linked with weather conditions and the day/night cycle, which makes it intermittent and random. Therefore, it makes sense to combine it with Energy Storage Systems (ESS) to ensure long-term energy availability for non-interconnected micro-grids. Among all technological solutions, electrolytic hydrogen produced by renewable energies seems an interesting candidate. In this context, this paper proposes a control strategy dedicated to hydrogen storage integration in micro-grids for a better use of PV production. The objective is to optimize the management of the micro-grid with proton exchange membrane Fuel Cell (FC), alkaline Electrolyzer (El), lithium-ion Batteries Energy Storage System (BESS) and PV, according to the system state and PV production intermittency. First, a control strategy based on a Distributed explicit Model Predictive Control (DeMPC) is developed to define current references for FCs, Els and batteries. Secondly, the performance of the control strategy is validated in simulation and confirmed on a Power-Hardware-in-the-Loop test bench.

show abstract

Optimal load balancing strategy for hybrid energy management system in DC microgrid with PV, fuel cell and battery storage

Cited by 26 publications

References 19 publications

Electric Vehicles Charging Stations’ Architectures, Criteria, Power Converters, and Control Strategies in Microgrids

Electric Vehicles Charging Stations’ Architectures, Criteria, Power Converters, and Control Strategies in Microgrids

Hybrid generators‐based AC microgrid performance assessment in island mode

Power Management of a Hybrid Micro-Grid with Photovoltaic Production and Hydrogen Storage

Contact Info

Product

Resources

About