Research Article
Model-Based Fault Detection and Isolation of a Liquid-Cooled Frequency Converter on a Wind Turbine
Table 6
Auxiliary signals of active fault detection for detecting startup faults.
| Fault type | Auxiliary signal | Time |
| Air in cooling system | or ( 0 [/]) 1570 [W] | 250 s |
| Phase module cooling channel clogging | ( [/]) [W] | 250 s |
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