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A digital platform for real-time simulation of power converters with high switching frequency
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| Author(s) |
Kevin DE CUYPER, Michel OSEE, Frederic ROBERT, Pierre MATHYS |
| Abstract |
In this paper, we propose a new implementation method for the rapid prototyping of power converters. AField-Programmable Gate Array emulates the temporal equations of the device while analog interfacesallow to use the platform to test control and protection systems in a nearly seamless way.A description of the converter based on an ideal on-off model for the power switches is used in orderto obtain multiple topologies for the same device. Each on these topologies is described by its ownequations and corresponds to a specific set of states of the switches. A topology selector based on thecontrol signals and the internal currents and voltages allows to find the correct equations in less than 10ns and a mid-point linear solver calculates the outputs in a few hundreds of nanoseconds. The solver also takes care of the passive switches (i.e. diodes) to ensure that they don’t go outside their current/voltage limit values.The whole process is described with a boost converter, and results show the great accuracy of our method even for high (> 100kHz) switching frequencies and sampling periods of less than 1μs. |
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| Filename: | 0131-epe2011-full-14574320.pdf |
| Filesize: | 270.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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