12-pulse 4Q thyristor converters in Simulink model

 

Functions:

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DC motor diagnostics:

• DC motor temperature estimation based on detailed thermal model (145 differential equations)

• wear rate calculation of the DC motor insulation resource based on the estimated results of the thermal model

• prediction the time period for bringing the DC motor to overhaul (in developing)

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Power electric converter diagnostics:

• monitoring the status of the converter and determining its faults using a Digital Twin

• automatic analysis of an emergency situation - determination of the type of failure, determination the number of a faulty thyristor, overvoltage monitoring, localization of the cause of the failure

 

Mechanical diagnostics:

• analysis of the state of the mechanical part of the mill stand based on statistical data obtained from vibration sensors of the elements of the stand of mill 1700, signaling about deviation of parameters from the normal mode (in developing)

 

Measurements in Speedgoat Performance real time machine:

• 40 analog channels with a sample time down to 50 μs (electrical values)

• via Modbus TCP (Master) - with a sample time down to 1 ms (electrical measurements, accelerometer signals)

• via Profinet (Slave) with Siemens S7-1200 - with a sample time of 10ms

• reading a Comtrade-file from recorders for automatic analysis of an emergency situation

 

Additional system features:

• the system has a built-in 4G modem for connecting the diagnostic system to the Internet,

• using a VPN, a network is organized that allows us to remotely perform work on setting up, monitoring, changing the algorithms of all components of the system