University of Huelva posted this:Power supply system controlled from internet for devices connected to a lanNowadays there are devices that allow the control of devices connected to a network from the own network. The classical method to access them from a different network is the redirection of the corresponding TCP or UDP connections to local networks from the border router. The redirection requires a high level of expertise in communications to be performed. Another strategy that is often used is the creation of VPN (virtual private network). This technique allows the control of access but does not allow connections to be discriminated or the management of power supply. The proposed system allows you to control the person and the moment to access as well as the free access. The modification of these constrains can be performed in the course of an access session. In addition, the system allows the control of power supply of the device you want access to. The interface is very friendly and does not require continuous changes in the configuration of the router. The system has a local database access control and validation can be delegated to other servers using protocol validation like LDAP, IMAP, POP3, etc.
University of Huelva posted this:NEW CONFIGURATIONS OF CC-CC CONVERTERS OF ONE INPUT AND MULTIPLE OUTPUTS WITHOUT TRANSFORMER AND POWER CONVERTER THAT APPLY THEMIt presents new configurations of CC-CC converters of single input and multiple outputs, without transformer, with a single input inductor. For its operation a single power switch is required, therefore, a single control circuit, which results in a smaller size, lower weight and simplicity compared to known systems
University of Vigo posted this:Suppression of Impulsive Noise for Power Line CommunicationsPower Line Communications (PLC) is an emerging field that enables to carry data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers. The widespread use of these technologies is however, compromised by the presence of impulsive noise that arises from interferences generated by devices connected to the power line. Therefore removal of impulsive noise is critical to get a high performance of PLC systems. UVIGO researchers have developed a novel methodology to mitigate impulsive noise by monitoring those carriers of the radiofrequency spectrum that are free of transmission in PLC systems. The identification of the noise signals allows its selective removal keeping the quality of the overall PLC signal.
Research & Technology Organization
UNIVERSIDAD DE ALICANTE posted this:New process for the manufacture of electrodes from superporous nanostructured carbon materialsSpanish University have developed a process for the manufacture of electrodes from superporous nanostructured carbon materials. The process uses electrospraying technique to deposit a suspension of a carbon material over a collector. This method facilitates processing superporous nanostructured carbon materials due to its high efficiency and less complexities compared to conventional techniques. The electrodes obtained can be used in energy storage or analytical sensors in commercial devices.
Spanish National Research Council posted this:Energy harvesting from ambient vibrations for wireless sensors applicationResearchers from the Spanish National Research Council at the Barcelona Microelectronics Institute (IMB-CNM) have recently developed a mechanical energy harvesting device by using a low-cost microelectronic fabrication process. The device acts as an electrical generator and is driven by environmentally-available mechanical energy such as ambient vibrations. Due to its flexibility and small size, it is of easy integration as power generator permitting the provision of full power autonomy to any wireless sensor node during its lifecycle into a network infrastructure following the philosophy “install and forget”. Industrial partners are being sought to exploit the existing know-how through a patent license agreement.
Technology Transfer Office
CITCEA-UPC posted this:Technology transfer in renewable energies, power electronics, energy control, electrical vehicles...CITCEA-UPC is a technology transfer center which was created in 2001 within the UPC (Universitat PolitÃ¨cnica de Catalunya, BarcelonaTech), and it is specialized in responding to electrical and electronic technological challenges. The aim of the center is to receive these challenges and solve them by creating a functional prototype that will serve the companies to eventually develop a new commercial product or to solve a new technological problem created by the growth and evolution of the society.
DIT Hothouse posted this:UPQC: A Device for Power Quality EnhancementUPQC (Universal Power Quality Conditioner) allows optimal control of a power electronics-based conditioner. Comprising both shunt and series elements (inverters), UPQC compensates for sags and swells, unbalance and distortion (harmonics)in the supply current and supply voltage respectively. UPQC delivers cost savings, increased reliability and enhanced electrical power network functionality. It also employs modular control software and novel techniques for load side short circuit protection of series inverters.