Research Article
Model-Based Fault Detection and Isolation of a Liquid-Cooled Frequency Converter on a Wind Turbine
Table 7
Classes of faults in the cooling system.
| Fault | Category |
| Startup faults |
| Air in cooling system | Process fault | Phase module cooling | Process fault | Channel Clogging |
| Runtime faults |
| Pump delivery pressure decreasing | Actuator fault | Pipe clogging | Process fault | Air-cooled heat exchanger | Actuator fault | Cooling effect decreasing | Temperature sensor defect | Sensor fault |
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