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Analysis and Identification of Faults in Bridge Converters Using the Symmetrical Space Phasor Components
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| Author(s) |
B. Strobl; W. Heinrich; G. Herold |
| Abstract |
High power converters have to work with high reliability. It would be useful if these devices can be
monitored during normal operation with low expenses in order to detect failures before they become
hazardous events. In this paper it will be shown that this diagnosis can be done very easily by
describing a converter circuit in the domain of the so-called Symmetrical Space Phasor Components.
By this transformation networks with a cyclical behavior like converters, for example, can be
transformed to equivalent networks which are decoupled for faultless operation. Faults lead to
characteristic coupling between these networks. By measuring the voltages and currents of the
converter with high accuracy equipment and processing the data with suitable algorithms it is
possible to separate the components which correspond to each of the equivalent networks. By
analysing this, conclusions about the fault can be drawn. |
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| Filename: | EPE1999 - PP00140 - Strobl.pdf |
| Filesize: | 59.98 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-24 by System |
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