Results 51 to 60 of about 24,092 (222)

Optimal Power Flow in Stand-alone DC Microgrids [PDF]

, 2017
Direct-current microgrids (DC-MGs) can operate in either grid-connected or stand-alone mode. In particular, stand-alone DC-MG has many distinct applications. However, the optimal power flow problem of a stand-alone DC-MG is inherently non-convex. In this
Li, Jia, Liu, Feng, Low, Steven H, Mei, Shengwei, Wang, Zhaojian   +4 more
core   +1 more source

Contribution of a smart transformer in the local primary control of a microgrid [PDF]

, 2013
In order to enable an easy participation of microgrids in the electricity markets, the smart transformer (ST) concept has been developed. The ST controls the power exchange between a microgrid and the utility network by only controlling its microgrid ...
De Kooning, Jeroen, Van de Vyver, Jan, Vandevelde, Lieven, Vandoorn, Tine, Willems, Wim   +4 more
core   +2 more sources

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

An Overview of Inertia Emulation Strategies for DC Microgrids: Stability Analysis and AC Microgrid Analogies

IEEE Open Journal of the Industrial Electronics Society
Inertia is a critical factor in maintaining the frequency stability of power systems. However, the growing integration of power electronics-based renewable energy sources (RESs) has significantly reduced system inertia.
Mahdis Haddadi, Saman A. Gorji, Samson S. Yu   +2 more
doaj   +1 more source

Power Oscillations Damping in DC Microgrids [PDF]

IEEE Transactions on Energy Conversion, 2016
This paper proposes a new control strategy for damping of power oscillations in a multi-source dc microgrid. A parallel combination of a fuel cell (FC), a photovoltaic (PV) system and a supercapacitor (SC) are used as a hybrid power conversion system (HPCS). The SC compensates for the slow transient response of the FC stack.
Hamzeh, Mohsen, Ghafouri, Mohsen, Karimi, Houshang, Sheshyekani, Keyhan, Guerrero, Josep M.   +4 more
openaire   +2 more sources

Bidirectional DC/DC and SOC Drooping Control for DC Microgrid Application [PDF]

Electronics, 2020
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 according to the voltage level and electromagnetic isolation requirements, and multiple energy storage units should be coordinated for load current distribution ...
Chunjiang Zhang, Pengcheng Li, Yingjun Guo   +2 more
openaire   +1 more source

Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control [PDF]

, 2013
Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication ...
De Kooning, Jeroen, Meersman, Bart, Vandevelde, Lieven, Vandoorn, Tine   +3 more
core   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

EcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor, Tamer Kamel, Sarah Fear, Lee J. Durndell   +3 more
wiley   +1 more source

Optimizing Electric Vehicle Charging Scheduling With Deep Q Networks and Long Short‐Term Memory‐Based Electricity and Battery State of Charge Prediction

Energy Science &Engineering, EarlyView.
Schematic diagram showing the proposed approach for EV charging/discharging. ABSTRACT The number of electric vehicles (EVs) on the road is rising as a result of recent advancements in EV technology, and EVs are important to the smart grid economy. Demand response schemes involving electric vehicles have the potential to dramatically reduce the cost of ...
F. Zonuntluanga, Subhasish Deb, Kshetrimayum Robert Singh, Subir Datta, Ahmet Onen, Taha Selim Ustun, Jaesung Jung   +6 more
wiley   +1 more source

A review: compatibility of fuel cells as promising technology for DC-microgrids

Renewable Energy and Environmental Sustainability
Due to a well-established infrastructure developed over the years, fossil fuel-based energy remains the predominant global energy source. Nevertheless, with heightened global attention towards addressing climate change concerns, there has been an ...
Gunawardane Kosala, Padmawansa Nisitha, Jayasinghe Hasith   +2 more
doaj   +1 more source