EPE 2007 - Subtopic 18-1 - LS: Industry specific energy conversion and conditioning technologies | ||
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 18: 'Industry specific energy conversion and conditioning technologies' > EPE 2007 - Subtopic 18-1 - LS: Industry specific energy conversion and conditioning technologies | ||
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![]() | 3-Level High Power Converter with Press Pack IGBT
By JAKOB Roland; KELLER Christian; MÖHLENKAMP Georg; GOLLENTZ Bernard | |
Abstract: Converteam recently has introduced the MV7000 series of medium voltage drives, designed with Press Pack IGBT (PPI) in 3-level NPC topology in the power range from 4 MW to 32 MW [3]. PPI combines the benefits of disk type device technology with state-of-the-art semiconductor technology. This paper explains relevant technical features and design issues related to MV7000 including direct series connection of devices.
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![]() | High Power Inverter using Press Pack IGBT for High Speed Applications
By GOLLENTZ Bernard; DIRAND Olivier | |
Abstract: Natural gas is an important base material and commodity for a host of industrial processes and is becoming increasingly important against a background of growing environmental awareness and more restrictive emission standards. Over seventy nations are currently supplied with natural gas. A variety of processes -from extraction and storage via gas treatment and transport through pipelines - call for turbo-compressors that must meet with the most varied requirements. High-speed drive systems are capable of directly driving these turbo-compressors at speeds of up to 20,000 rpm / 8MW, using the MV7000 converter.
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![]() | Improvement of a static system for water condensation supplied with Photo Voltaic energy
By FERRARIS Paolo; FERRARIS Luca | |
Abstract: The possibility to obtain water through the use of PV energy is analyzed; the approach provides the use of thermoelectric devices for bringing the ambient humidity under the dew temperature. A second prototype has been realized after an analysis performed through a suitable modelling activity. In order to improve the system a larger number of thermoelectric devices has been adopted. The obtained results are presented, and show that the choices adopted are in the right direction. Many information have been collected about the ambient conditions in which the system can be utilized. More work has still to be done to investigate the aspects concerning to surface properties, in particular for the so called "wettability", that is the possibility for the water to drop. The results are also very useful for carrying out information useful to implement a closed loop control choosing the best working point with respect to the environmental conditions.
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