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Parallel Connected Voltage Source Inverters without Intermodule Reactors
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| Author(s) |
Toni Itkonen, Kimmo Rauma, Hanni Saren, Ossi Laakkonen, Olli Pyrhonen, Pertti Silventoinen |
| Abstract |
Connecting power converters in parallel is useful
method for solving high power requirements. Parallel
structure without intermodule reactors would be desirable
because of its low cost and compact size. Due to the finite
tolerances in power stages and delays in control circuits,
switchings of the parallel connected units will not be
absolutely simultaneous. Asynchronous switchings leads to a
current imbalance at the parallel inverter legs. In the ideal
situation switchings would be exactly simultaneous and each
leg would take the same amount of the load current. In this
paper simulation and measurement results of the parallel
connected voltage source inverters (VSI) without
intermodule reactors are presented. These results show that
a method is needed to synchronize the parallel power
converters to get a full use of the parallel system. |
| Download |
| Filename: | T2-110.pdf |
| Filesize: | 353.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2007-03-08 by System |
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