ABSTRACT:
Power electronics still meets several acceptances in the technical world. This may be the modern form of electrical concerns about when the motor control example. Power electronics also refers to the set of concepts, techniques and methodologies related to static electricity conversion. This is also true in wireless embedded systems where the fine management of electricity is a major issue. In terms of power, power electronics spans many, many decades: the very low power linked to energy recovery (mW) or very large flow of electricity networks (GW). In terms of frequency spectrum, power electronics includes signals from DC to a few hertz (Power System) to several gigahertz (electromagnetic noise radiated). Power electronics is a vast science and technology, constantly changing and at the heart of the societal issue of the energy transition as that of the digital society. The items in the collection cover different aspects of this exciting field. The objective of this article is to introduce the structure, expanded and propose a reading guide.
INTRODUCTION:
Power electronics is a scientific and technical discipline - acquired status since the 1980s, broad discipline of knowledge and technology.
The success of a power converter, as an industrial product, based on the mastery of many physical phenomena in many fields. However, it would be difficult to advance a precise definition of concepts, technologies and techniques that covers the "power electronics" acronym. This discipline supports the achievement of essential functions within systems, including the general public does not see in the end that purpose. Whether on a train or a mobile phone, instead of power electronics in these "products" is rarely emphasized. The power electronics supplies power to the functions of an "electronic" system, whatever it is. The image of the discipline "power electronics" is probably the equal of the importance of this discipline in the system: while discretion.
At a time when fossil fuels become scarcer and environmental awareness promotes clean and renewable energy, power electronics is again propelled to the forefront. Indeed, downstream systems that transform energy alternatives to fossil energy (sun, wind, water, thermal energy, vibration, biomass) power electronics is present from the conversion into electrical energy and when adapting this electricity needs. The power electronics industry is forced to produce more converters, with increased performance and a cost of more reduced. These performances are in line with better performance and increased power density. Applications require operations environments considered in severe ambient temperature, vibration and chemical attack. But always discretion ...
Power electronics is similar to electrical and refers to large installations. These electrical installations do not primarily high technology, yet evoke the energy transition brings out a strong technical and scientific revival of solutions called intelligent networks (smart grids). Deployment in the near future of a mesh network in continuous mode but at high voltage (HVDC) involves the development of components and adapted converters. Without power electronics in terms of techniques and concepts, mobile products (computers, readers ...) would not know the development is known. At small scale, power electronics is called the "energy management" or "power management". It is ultimately the goal of every converter. It is the low voltage electronics that has gripped the cutting concepts of electrical power, or power electronics, as a discipline, which focuses on small power products (less than watt) as those involving colossal powers (megawatts). Apart from technology, the supply of a CPU (~ 100 W) or converter connected to a wind turbine generator (400 kW) sharing a large number of aspects, and engineers who have designed respectively to fought with the same physical phenomena and tried to find the best answer to the same trade (mass, performance, stability, quality of service, cooling, reliability, electromagnetic susceptibility
...).
Power electronics section has a discipline dedicated to the conversion of electrical energy, that is to say the way to provide precisely to a load electric power it needs - current, voltage and spectral content dynamically and this - when they need it, and from one or more primary sources of electrical energy. The section has the ambition to record the knowledge necessary to understand the phenomena in games. The conversion of non-electrical primary energy into electricity covers aspects increasingly discussed in terms of "energy recovery" (energy harvesting). Physical principles of transformation of primary energy into electricity are not covered in this section. As against the management of this transformation, in particular to make it as effective as possible - including the famous maximum power point (MPP maximum power point) - the responsibility of an electric converter, objects covered in this section.
Power electronics is evolving rapidly, and technological leaps. Also, the role of the section is to provide a concise presentation of the most relevant technological applications in all aspects of a power system. Finally, the Engineering Techniques have the mission to change the edition of the section to reflect the power of tomorrow electronics: the conversion of new structures are being developed, running integration for small or medium power, or the direct intake of energy on a network, for sources of very high voltage, for example.
Power electronics still meets several acceptances in the technical world. This may be the modern form of electrical concerns about when the motor control example. Power electronics also refers to the set of concepts, techniques and methodologies related to static electricity conversion. This is also true in wireless embedded systems where the fine management of electricity is a major issue. In terms of power, power electronics spans many, many decades: the very low power linked to energy recovery (mW) or very large flow of electricity networks (GW). In terms of frequency spectrum, power electronics includes signals from DC to a few hertz (Power System) to several gigahertz (electromagnetic noise radiated). Power electronics is a vast science and technology, constantly changing and at the heart of the societal issue of the energy transition as that of the digital society. The items in the collection cover different aspects of this exciting field. The objective of this article is to introduce the structure, expanded and propose a reading guide.
INTRODUCTION:
Power electronics is a scientific and technical discipline - acquired status since the 1980s, broad discipline of knowledge and technology.
At a time when fossil fuels become scarcer and environmental awareness promotes clean and renewable energy, power electronics is again propelled to the forefront. Indeed, downstream systems that transform energy alternatives to fossil energy (sun, wind, water, thermal energy, vibration, biomass) power electronics is present from the conversion into electrical energy and when adapting this electricity needs. The power electronics industry is forced to produce more converters, with increased performance and a cost of more reduced. These performances are in line with better performance and increased power density. Applications require operations environments considered in severe ambient temperature, vibration and chemical attack. But always discretion ...
...).
Power electronics section has a discipline dedicated to the conversion of electrical energy, that is to say the way to provide precisely to a load electric power it needs - current, voltage and spectral content dynamically and this - when they need it, and from one or more primary sources of electrical energy. The section has the ambition to record the knowledge necessary to understand the phenomena in games. The conversion of non-electrical primary energy into electricity covers aspects increasingly discussed in terms of "energy recovery" (energy harvesting). Physical principles of transformation of primary energy into electricity are not covered in this section. As against the management of this transformation, in particular to make it as effective as possible - including the famous maximum power point (MPP maximum power point) - the responsibility of an electric converter, objects covered in this section.
Power electronics is evolving rapidly, and technological leaps. Also, the role of the section is to provide a concise presentation of the most relevant technological applications in all aspects of a power system. Finally, the Engineering Techniques have the mission to change the edition of the section to reflect the power of tomorrow electronics: the conversion of new structures are being developed, running integration for small or medium power, or the direct intake of energy on a network, for sources of very high voltage, for example.
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