@article{Ramu2024EnhancedEM, title={Enhanced energy management of DC microgrid: Artificial neural networks-driven hybrid energy storage system with integration of bidirectional DC-DC converter}, author={Senthil Kumar Ramu and Indragandhi Vairavasundaram and Balakumar Palaniyappan and Ashok Bragadeshwaran and Belqasem Aljafari}, …
The energy storage capacity is configured according to 1.2 times the load capacity. If the important load reaches 200kW, it is recommended to configure a 250kW energy storage converter. If other loads need to run off-grid, the energy storage power ratio should be increased accordingly. Transformer ratio of energy storage converter
The battery energy storage system (BESS) is an important part of a DC micro-grid because renewable energy generation sources are fluctuating. The BESS can provide energy while the renewable energy ...
Energy storage systems play a key role in improving security, stability, and power quality of the microgrid. During grid-connected mode, these storage units are charged from various DG sources as well as the main grid. …
A bidirectional resonant converter is presented and verified in this paper for an electric vehicle battery charger/discharger system. The presented circuit can achieve forward and backward power operation, low switching losses on active devices, and wide output voltage operation. The circuit structure of the presented converter includes two resonant circuits on the …
The steady and transient performance of a bidirectional DC–DC converter (BDC) is the key to regulating bus voltage and maintaining power balance in a hybrid energy storage system. In this study, the state of charge of the energy storage element (ESE) is used to calculate the converter current control coefficient (CCCC) via Hermite interpolation. Moreover, the …
With the wide use of energy storage devices such as batteries and supercapacitors, the current trend is to simplify battery charge and discharge management. A bidirectional DC/DC converter can accomplish this to maintain a healthy battery and extend battery runtime. The bidirectional converter uses one powertrain to implement the charge
This paper investigates the operation of a DC microgrid which is connected to a DC distribution network using a modular-isolated bidirectional DC–DC converter. The bidirectional power flow capability of the proposed modular converter provides the possibility of power exchange between DC microgrid, and DC distribution network contains some microgids. The …
Bi-Directional Power Flow GaN Bi-Directional Converter (DC-DC) Energy Hub Regional Controller +-+-+-+-Battery DC Load Regional Controller Regional Controller G D S G D S GaN Bi-Directional Converter (DC-DC) G D S Fig. 1: Solar PV-based DC microgrid System I PV V PV PV array C PV R PV C dc MPPT controller L PV Pulse generator L batt C batt Boost ...
The ac microgrid are dominant in power system, but it doesn''t replaced by the dc microgrid, so we are interfacing ac and dc microgrid by interlinking converter(IC) for proper power management and ...
impact on the grid. Thus, energy storage systems have a crucial role in ensuring green energy development and reliable grid operations. ... Micro-grid Facility Support • Emergency power backup ... are bi-directional energy storage inverters for grid-tied, off-grid, and C&I applications including power backup, peak shaving, load shifting, PV ...
With the rapid development of modern energy applications such as renewable energy, PV systems, electric vehicles, and smart grids, DC-DC converters have become the key component to meet strict industrial demands. More advanced converters are effective in minimizing switching losses and providing an efficient energy conversion; nonetheless, the …
The bidirectional converter with a battery enables efficient energy storage and management, allowing excess power to be stored for later use during periods of low energy generation or high demand. Additionally, the inclusion of a dump load ensures the dissipation of surplus power when the battery is fully charged.
This paper proposes a novel energy management strategy (EMS) based on Artificial Neural Network (ANN) for controlling a DC microgrid using a hybrid energy storage system (HESS). The HESS connects to the DC Microgrid using a bidirectional converter (BC), that enables energy exchange between the battery and supercapacitor (SC).
In microgrids, the ESSs can be installed in a centralized way by the utility company at the point of common coupling (PCC) in the substation [] sides, the ESSs can also be integrated in a distributed way such as plug-in electric vehicles (PEV) and building/home ESSs [17, 18] pending on the operation modes of microgrids, the ESSs can be operated for …
Photovoltaic energy storage system is widely used in microgrid and smart grid, which can promote the development of "carbon peak" and "carbon neutralization" [1,2,3] the single-phase photovoltaic energy storage inverter, H4 bridge topology is widely used in the bidirectional AC/DC circuit at the grid side because of its simple structure and low cost, so as to realize the ...
The bus voltage of DC microgrid is the key indicator of the stable operation of the system. The energy storage units play an important role in maintaining the stability of DC bus voltage in DC ...
1.1. Motivation. Amid the growing global energy crisis, microgrids are seen as a crucial strategy for tackling energy issues. This research study focuses on improving the smooth operation of DC microgrids by utilizing an efficient DC-DC boost converter for solar PV and FC plants, along with a bidirectional buck-boost converter for integrating BESS into the microgrid.
Bidirectional DC-DC power converters (BDC) play a key role in interfacing DES (distributed energy storage) units with the microgrid, irrespective of the microgrid type. During the grid-connected mode, the utility grid as well as the DERs meets the load demand. During this time, …
The EV battery can assume the role of an energy storage from the grid point of view. ... Many references [14]–[16] discussed about bi-directional DC-DC converter but do not solve overlapping problems. ... 10.11591/ijpeds.v14.i3.pp1844-1854. [16] S. Neelagiri and P. Usha, "Modelling and control of grid connected microgrid with hybrid energy ...
The energy storage capacity is configured according to 1.2 times the load capacity. If the important load reaches 200kW, it is recommended to configure a 250kW energy storage converter. If other loads need to run off …
DC-DC converter plays a major role in microgrid and energy storage system using operational stability and synchronised power delivery. In this paper, an energy …
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Aiming at the voltage fluctuation of DC microgrid bus caused by the power fluctuation of distributed power supply and switching of constant power load (CPL), this paper proposes a model predictive control (MPC) strategy with …
A microgrid is defined as a local electric power distribution system with diverse DG (distributed generation) units, energy storage systems, and loads, which can operate as a part of the distribution system or when needed can operate in an islanded mode. Energy storage systems play a key role in improving security, stability, and power quality of the microgrid. …
This paper presents modeling and analysis of bidirectional DC-DC buck-boost converter for battery energy storage system and PV panel. PV panel works in accordance with irradiance available.
In DC microgrids, distributed energy storage plays a key role in stabilizing the DC bus voltage. The bidirectional DC/DC converter in the distributed energy storage system should be designed ...
In this paper, a new bidirectional nonisolated DC-DC (direct current–direct current) converter to interface microgrid energy storage systems is proposed. This converter is …
Abstract: Bidirectional DC-DC converters play an important role in the energy management system of electric vehicles by being responsible for the efficient conversion and transmission of electrical energy between the battery and other electronic devices of the electric vehicle. First, the topology of the bidirectional DC-DC converter is analyzed, and the applications in electric …
A microgrid is defined as a local electric power distribution system with diverse distributed generation (DG), energy storage systems, and loads, which can operate as a part of the distribution system or when needed can operate in an islanded mode. Energy storage systems play a key role in improving security, stability, and power quality of the microgrid. During grid …
In dc microgrid, energy storage system (ESS) plays a crucial role to provide short-or-long term and high-quality electric energy. The different control strategies for bidirectional dc-dc converter ...
Energy storage systems play a key role in improving security, stability, and power quality of the microgrid. During grid-connected mode, these storage units are charged from various DG …
Commercial energy storage 3 • Over one hundred kW • Designed for: • Peak shaving • Shifting loads • Emergency backup • Frequency regulation • Often combined with solar or wind power • Bidirectional AC-DC converter and bidirectional DC-DC converter to control energy flow
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