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Smart Grids are a hot topic with hundreds of applications and different approaches. In the present paper, the proposed system integrates street lighting, renewable energy sources, energy storage devices and inverter connected to the mains. With this in mind, the Smart Grid can be considered not only as an energy consumer/generator but also as a grid supporter, being capable of reducing the energy...
The purpose of this project is to analyze the technical possibilities of implementing a sustainable gym, where all the electric energy generated by sport machines, is injected into the grid. In a first phase it will be include electric generators to the static bicycles based on permanents magnets generators (PMG), so that all the energy is injected to a DC bus. Subsequently an electronic inverter...
Most common Power Factor Correction (PFC) solutions for low power applications, when galvanic isolation is required, involve the use of discontinuous conduction mode (DCM) dc to dc topologies. The control is generally based on fixed duty ratio operation, or at best, on a classic low-bandwidth duty-ratio control. Considering public lighting systems, in which a high number of low power converters are...
This paper defines, explains and implements a unified switching pattern for the switches in a bidirectional Discontinuous Conduction Mode (DCM) Flyback converter, used for connecting the individual elements of a street lighting system to the mains facility. In every individual element, the DC bus links the different existing stages, such as lamp driver, energy storage stage, power generation stage...
This paper presents a multifunctional bidirectional converter. The proposed converter works as a grid-tied inverter, injecting power coming from a PV subsystem to the AC mains in the daytime hours, but also supplies energy to a LED-based street lighting system at night. The topology is based on the integration of two Flyback converters thus allowing the desired bidirectional energy flux. Each Flyback...
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