Research Article

Model-Based Fault Detection and Isolation of a Liquid-Cooled Frequency Converter on a Wind Turbine

Table 5

List of faults considered in the test setup.

Component Fault type

 Startup faults

Power Module Cooling Element ( 1 ) Air in cooling system
( 2 ) Phase model cooling channel clogging

 Runtime faults

Pump Delivery pressure Decreasing
Pipe Clogging
Air-cooled heat exchanger Cooling effect decreasing
Temperature sensor Defect