| 摘要 |
System and method for determining degradation of one or more respective capacitors (e.g., 54, 154) in a DC link of a power converter system is provided. The system includes a signal monitor (202) configured to monitor a respective signals indicative of an estimated capacitor value based on a first set of operating and environmental conditions. Memory (210) is configured to store a nominal capacitor value based on a second set of operating and environmental conditions. A database (214) is configured to store the adjusted capacitor value to generate historical data of the respective capacitor value. A diagnostics module (216) is configured to execute analysis on the historical data to determine the presence of incipient faults in the respective DC link capacitor. |
