3,089 research outputs found
CPES : Center Program Snapshot (April 2009)
No full textWith the widespread use of power electronics technology, the United States would be able to cut electrical energy consumption by 33 percent. The energy savings, by today’s measure, is equivalent to the total output of 840 fossil fuel-based generating plants. This would result in enormous economic, environmental and social benefits. The engineers of the Center for Power Electronics Systems (CPES) are working to make electric power processing more efficient and more exact in order to achieve these benefits. The effort requires close collaboration with industry and with researchers across universities and fields of endeavor. Electrification is considered the greatest engineering feat of the 20th century by the National Academy of Engineering. The dream of CPES engineers is to take electricity to the next step and develop power processing systems of the highest value to society
CPES Mini-Consortium Brochure (April 2011)
No full textThe CPES mini-consortium model provides a unique mechanism for all participants in power electronics – including industry competitors – to pool efforts to address their common challenges and develop pre-competitive Advances. Companies and organizations join CPES as a Principal Plus Member and choose the mini-consortium option. Annual membership fees are $50,000. Research results generated within a miniconsortium are shared among its members, and intellectual properties developed under the CPES industry consortium are shared among all Principal-level members as described on the next page. The research and IP benefits are only part of what makes the mini-consortium effective. The distinctive feature of the model is discussion among all participants, which then shapes and guides research toward overcoming the major barriers in the field. Competitive plans and technologies are protected, yet participants can discuss their mutual technical problems. Miniconsortium interactions take place in the quarterly review meetings
2016 CPES Annual Report
No full textIn its effort to develop power processing systems to take electricity to the next step, CPES has cultivated research expertise encompassing five technology areas: (1) power conversion technologies and architectures; (2) power electronics components; (3) modeling and control; (4) EMI and power quality; and (5) high density integration. These technology areas target applications that include: (1) Power management for information and communications technology; (2) Point-of-load conversion for power supplies; (3) Vehicular power converter systems; and (4) High-power conversion systems. In 2016, CPES sponsored research totaled approximately $2.1 million. The following abstracts provide a quick insight to the current research efforts
2017 CPES Annual Report
No full textIn its effort to develop power processing systems to take electricity to the next step, CPES has cultivated research expertise encompassing five technology areas: (1) power conversion technologies and architectures; (2) power electronics components; (3) modeling and control; (4) EMI and power quality; and (5) high density integration. These technology areas target applications that include: (1) power management for information and communications technology; (2) point-of-load conversion for power supplies; (3) vehicular power converter systems; and (4) high-power conversion systems. In 2016, CPES sponsored research totaled approximately $2.4 million. The following abstracts provide a quick insight to the current research efforts
2015 CPES Annual Report
No full textIn its efforts to develop power processing systems to take electricity to the next step, CPES has developed research expertise encompassing five technology areas: (1) power conversion technologies and architectures; (2) power electronics components; (3) modeling and control; (4) EMI and power quality; (5) high density integration. These technology areas target applications that include: (1) Power management for information and communications technology; (2) Point-of-load conversion for power supplies; (3) Vehicular power conversion systems; (4) Renewable energy systems. In 2015, CPES sponsored research totaled approximately $2.2 million. The following abstracts provide a quick insight to the current research efforts
2013 CPES Annual Report
No full textThe CPES industrial consortium is designed to cultivate connectivity among researchers in academia and industry, as well as create synergy within the network of industry members. The CPES industrial consortium offers: The best mechanism to stay abreast of technological developments in power electronics; The ideal forum for networking with leadingedge companies and top-notch researchers; The CPES connection provides the competitive edge to industry members via: Access to state-of-the-art facilities, faculty expertise, top-notch students; Leveraged research funding of over $4-10 million per year; Industry influence via Industry Advisory Board and research champions; Intellectual properties with early access for Principal Plus and Principal members via CPES IPPF (Intellectual Property Protection Fund); Technology transfer made possible via special access to the Center’s multi-disciplinary team of researchers, and resulting publications, presentations and intellectual properties; Continuing education opportunities via professional short courses offered at a significant discount. The CPES industrial consortium offers the ideal forum for networking with leading-edge companies and top-notch researchers and provides the best mechanism to stay abreast of technological developments in power electronics
2014 CPES Annual Report
No full textOver the past two decades, CPES has secured research funding from major industries, such as GE, Rolls-Royce, Boeing, Alstom, ABB, Toyota, Nissan, Raytheon, and MKS, as well as from government agencies including the NSF, DOE, DARPA, ONR, U.S. Army, and the U.S. Air Force, in research pursuing high-density system design. CPES has developed unique high-temperature packaging technology critical to the future powerelectronic industry. In the HDI mini-consortium, the goal of high power density will be pursued following two coupled paths, both leveraging the availability of wide-bandgap power semiconductor, as well as high-temperature passive components and ancillary functions. The switching frequency will be pushed as high as component technologies, thermal management, and reliability permit. At the same time, the maximum component temperatures will be pushed as high as component technologies, thermal management, and reliability permit. The emergence of wide‐bandgap semiconductors such as Silicon Carbide (SiC) and Gallium Nitride (GaN) makes it possible to realize power switches that operate at frequency beyond 5 MHz and temperature beyond 200° C. As the switching frequency increases, switching noise is shifted to higher frequency and can be filtered with small passive components, leading to improved power density. Higher operating temperatures enable increased power density and applications under harsh environments, such as military systems, transportation systems, and outdoor industrial and utility systems
Required VSC efficiency for zero net-loss distribution network active compensation
No full textActive compensation of distribution networks with medium-voltage power electronics can result in a reduction in feeder electrical losses if operated correctly, however losses are incurred in the active compensator itself when operating. This paper aims to define a lower boundary for the total efficiency of such a compensation system in which the compensator will offset its own operating electrical losses. If the compensator efficiency is improved beyond the determined boundary, any additional reductions in losses due to compensation will be of net benefit to the utility employing these devices, i.e., the break-even efficiency which gives zero net electrical losses. The reduction in feeder losses also implies reduced stress on electrical assets which may be of further benefit to utilities. Different categories of network topologies with different numbers of compensators have been considered as part of this study. The total amount of loss-reductions possible with compensation are presented (in MWh/year), and later the worst and best case break-even efficiency requirements are presented. In addition, the additional reduction in network losses due to the installation of distributed generation is considered. Since active compensation with power electronics can allow for increased levels of distributed generation, some of the additional loss reduction can be attributed to the presence of the compensator itself, thereby relaxing total compensator efficiency requirements
Power electronics applied to industrial systems and transports.
No full textIf the operation of electronic components switching scheme to reduce congestion and losses (in power converters in general and switching power supplies in particular), it also generates electromagnetic type of pollution in its immediate environment. Power Electronics for Industry and Transport, Volume 4 is devoted to electromagnetic compatibility. It presents the sources of disturbance and the square wave signal, spectral modeling generic perturbation. Disturbances propagation mechanisms called "lumped" by couplings such as a common impedance, a parasitic capacitance or a mutual and "distributed constant", for which the spatial-temporal character must be taken into account, are also covered.Includes bibliographical references and index.Print version record.Introduction to EMC -- Lumped Parameter Models -- Distributed Element Models.If the operation of electronic components switching scheme to reduce congestion and losses (in power converters in general and switching power supplies in particular), it also generates electromagnetic type of pollution in its immediate environment. Power Electronics for Industry and Transport, Volume 4 is devoted to electromagnetic compatibility. It presents the sources of disturbance and the square wave signal, spectral modeling generic perturbation. Disturbances propagation mechanisms called "lumped" by couplings such as a common impedance, a parasitic capacitance or a mutual and "distributed constant", for which the spatial-temporal character must be taken into account, are also covered.Elsevie
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