As one of the core components of wind turbines, the reliability of wind power converters directly affects the safe operation and power generation efficiency of wind turbines. For the functional test (start, run, stop, communication) of wind power converters, the following methods can be used:

1. Startup detection
Inspection preparation:
Confirm whether the installation and wiring of the converter and its related equipment are correct, including power lines, control lines, and signal lines.
Check whether the nameplate, symbols, and logos of the converter are clear and correct, and meet the requirements of the product drawings.
Check whether the model and specifications of each component are correct and whether they have product certificates and relevant certificates and logos.
Startup operation:
Perform the startup operation according to the operating manual or user guide of the converter.
Observe the indicator lights and alarm signals of the converter to confirm whether they are normal.
Parameter setting and verification:
Set the relevant parameters of the converter according to the requirements of the wind farm system, such as the power, current, voltage, speed, operating frequency, etc. of the generator.
Verify the startup mode of the converter to ensure that it meets the actual operation requirements.
2. Operation detection
Real-time monitoring:
By connecting monitoring instruments or using remote monitoring systems, monitor the output current, voltage, frequency, and other parameters of the converter in real-time.
Observe whether these parameters are stable and fluctuate within the normal range.
Check equipment status:
Check whether the cooling system of the converter is operating normally, including fans, water pumps, pipes, and other components.
Check whether the protection system of the converter is set correctly and test whether its action is reliable.
Record and analyze:
Record various parameters and status information of the converter during operation.
Analyze the recorded data to determine whether the converter has abnormalities or potential faults.
3. Shutdown detection
Normal shutdown:
Perform normal shutdown operations according to the operation manual or user guide.
Observe the changes in the indicator lights and alarm signals of the converter during the shutdown process.
Emergency shutdown:
Simulate emergency shutdown conditions to test whether the emergency shutdown function of the converter is reliable.
Record various parameters and status information during the emergency shutdown process.
Post-shutdown inspection:
Check whether the status of the converter is stable after shutdown and there are no abnormalities.
Clean the dust and dirt of the converter and its related equipment, and keep it clean and dry.
4. Communication detection
Communication test:
Test whether the communication between the converter and the main control system or other related equipment is normal.
Check whether the connection of the communication line is firm and correct.
Data exchange:
Test whether the data exchange between the converter and the main control system is accurate and reliable through the communication interface or network protocol.
Check whether there is packet loss, packet error, and other phenomena during the data exchange process.
Fault alarm:
Test whether the alarm function of the converter is reliable when the communication fails.
Record the alarm information and related parameters when the communication fails.
In summary, the functional test and detection of wind power converters is a complex and meticulous process, which requires strict operation in accordance with the operation manual or user guide, and recording and analysis of relevant data to ensure the normal operation and reliability of the converter.