1,721,551 research outputs found
Industrial electronics for renewable energy
No full textEnergy production based on the use of renewable sources has a huge potential. The needed technology is available and it benefits of continuous improvement due to academic and industrial research activity. Another mayor issue is the knowledge transfer to industry on the basis of international conferences/workshops and educational programs. Selected issues related to renewable energy systems technology and knowledge transfer are discussed in the panel session. This summary introduces them: energy conversion, storage and transportation, control, monitoring and communication, technical committees activity and educational programs
Future Energy Systems Integrating Renewable Energy Sources into the Smart Power Grid Through Industrial Electronics
No full textIndustrialization and economic development have historically been associated with man's ability to harness natural energy resources to improve his condition. Based on this definition, two industrial revolutions occurred in the 18th and 19th centuries, where natural resources such as coal (first revolution) and petroleum (second revolution) were widely exploited to produce levels of energy far beyond what could be achieved by human or animal muscle power. Furthermore, modern power distribution systems made abundant energy reliably available and relatively independent from the plant location. More than two centuries of past industrialization exploited nonrenewable energy resources, however, often with undesirable side effects such as pollution and other damage to the natural environment. In the second half of the 20th century, extraction of energy from nuclear processes grew in popularity, relieving some demands on limited fossil fuel reserves, but at the same time, raising safety and political problems. Meeting the global demand for energy is now the key challenge to sustained industrializatio
Design and Control of an LCL-filter Based Three-phase Active Rectifier
No full textThe aim of the paper is to propose a design procedure for an LCL-filter in a front-end three-phase active rectifier. The main goal is to ensure a reduction of the switching frequency ripple at a reasonable cost and, at the same time, to obtain a high performance rectifier. In this paper a step-by-step procedure for designing an LCL-filter is proposed and verified by simulations and experiments. An example of LCL-filter design has been reported and, with the obtained values, the filter has been realised and tested. The experimental results demonstrate the effectiveness of the design procedure both of the LCL-filter and of the controllers. The performance of the overall system is good both in the low and high frequency ranges. Moreover the good agreement between these results and those obtained in simulation validate the adopted model: the design procedure and the simulation model represent a powerful tool to design an LCL active rectifier without the need for the realisation of several prototypes
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