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Topic Review
Virtual Power Plant Optimization in Smart Grids
Virtual power plants (VPPs) are promising solutions to address the decarbonization and energy efficiency goals in the smart energy grid. They assume the coordination of local energy resources such as energy generation, storage, and consumption. They are used to tackle problems brought by the stochastic nature of renewable energy, lack of energy storage devices, or insufficient local energy flexibility on the demand side. VPP modeling, management, and optimization are open to research problems that should consider, on one side, the local constraints in the operation of the energy resources and power flows and the energy grid’s sustainability objectives on the other side. There are multiple goals to create a VPP, such as to deliver energy services on a market or to the grid operator, to operate a microgrid in autonomy decoupled from the main grid, or to sustain local energy communities. 
  • 1.3K
  • 27 May 2022
Topic Review
Virtual Lab
VirtLAB is a Low-Cost Platform for Electronics Lab Experiments. The recent SARS-CoV2 pandemic has put a great challenge on university courses. Electronics teaching requires real laboratory experiences for students, which cannot be realized if access to physical infrastructures is prohibited. A possible solution would be to distribute to students, at home, electronics equipment suitable for laboratory experiments, but no reasonable product is currently available off-the-shelf.
  • 423
  • 22 Jul 2022
Topic Review
Virtual Electronics Laboratories in Education
Virtual reality or VR corresponds to a sensation, on the part of the user, of being physically present in a world that is not physical, through the use of images, sounds, and other stimuli created computationally for this purpose.
  • 235
  • 25 Jun 2023
Topic Review
Virtual Collection for Distributed Photovoltaic Data
With the rapid development of distributed photovoltaic systems (DPVS), the shortage of data monitoring devices and the difficulty of comprehensive coverage of measurement equipment has become more significant, bringing great challenges to the efficient management and maintenance of DPVS. Virtual collection is a new DPVS data collection scheme with cost-effectiveness and computational efficiency that meets the needs of distributed energy management but lacks attention and research.
  • 549
  • 08 Dec 2022
Topic Review
Viewing Angle Switchable Liquid Crystal Devices
For pure liquid crystals (LCs) system, methods for switchable viewing angle devices are divided into hybrid aligned nematic (HAN) LC cells, double cells, pixel division and three-electrode structure. Utilizing 3M light-control film and PDLC film together to create switchable anti-peeping film, PDLC is a voltage-controlled LC film that can switch between transparent and scattering, light scattering intensity of PDLC film is dependent on electric field, switchable voltage between light scattering (share mode) and transparent state (privacy mode) is approximately 5.0 V.
  • 640
  • 10 Oct 2022
Topic Review
Vibration Monitoring for Hay Rotary Tedder
Vibration monitoring provides a good-quality source of information about the health condition of machines, and it is often based on the use of accelerometers. Mechanical vibration transducers are used to receive a mechanical signal from a vibrating object and convert it into an electrical signal. This signal is properly processed. A measurement system includes a vibration transducer, for instance, a piezoelectric transducer, and an appropriate amplifier. Mechanical vibration measurement systems measure the vibrations produced by machines as well as the vibrations of buildings or bridges. 
  • 377
  • 21 Jun 2022
Topic Review
Versatile Electronics for Microwave Holographic RADAR
The NATO SPS G-5014 project has shown the possibility of using a holographic RADAR for the detection of anti-personnel mines. To use the RADAR on a robotic scanning system, it must be portable, light, easily integrated with mechanical handling systems and configurable in its operating parameters for optimal performance on different terrains. The novel contribution is to use software programmable electronics to optimize performance and to use a time reference to obtain synchronization between the RADAR samples and the position in space, in order to make it easy to integrate the RADAR on robotic platforms. 
  • 360
  • 14 Oct 2022
Topic Review
Vehicular Ad Hoc Network
Vehicular ad hoc networks (VANETs), which are integral to the infrastructure of intelligent transport systems, facilitate the critical exchange of information between vehicular nodes.
  • 227
  • 08 Dec 2023
Topic Review
Variable Speed Diesel Generators
Variable Speed Diesel Generators (VSDGs)  is a solution to optimize engine consumption and increase system efficiency during different regimes. It improves system behavior by adapting diesel generators (DGs) speed with demanded mechanical load from the generator. VSDG improves efficiency, increases engine lifetime, reduces fuel consumption, and GHG emissions. Conventional fixed speed DG can rarely operate at less than 50% of the maximal load, while VSDGs can operate for a long period at low rotational speed to support lower loads.
  • 2.4K
  • 19 Jan 2022
Topic Review
Vacuum Switching Devices in Medium-Voltage Networks
The development of power grid infrastructure and increasingly stringent environmental regulations have intensified work, carried out by researchers and electrical equipment manufacturers, to develop innovative gas-insulated, environmentally neutral devices. The emergence of new designs of circuit breakers and disconnectors, in which the resulting electric arc is extinguished in a vacuum environment, requires the development of appropriate techniques for diagnosing the chambers responsible for the dielectric parameters of the device. 
  • 199
  • 22 Mar 2023
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