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The subsystem consists of three areas as shown in figure 2.

• The blue area (Inverter Control) enables the PWM signals (Enable Inverters) of the inverter module, sets it switching frequency (Inverters Switching Frequency), and adjusts its modulation index (Inverter modulation amplitude)

• The gray area (Signal Monitoring) is the block for receiving and monitoring data from the OPAL-RT simulator

• The orange area also provides important information regarding the test instructions

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This subsystem consists of three main areas, including “OP8219 and OP8662 IO Interface,” “SIMULATION MODEL BASED ON MATLAB’S ‘UNIVERSAL BRIDGE’ BLOCK,” and “SIMULATION MODEL BASED ON ‘RT-LAB 2-LEVEL TSB’ BLOCK” as shown in figure 3.

• The orange area is used to interface the PWMs besides the voltage and current measurements.

• The blue andyellow areas are respectively used to implement the model in MATLAB and the real-time simulator.

• Both real time and MATLAB models are compared with the results measured from the test bench.

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• Ensure that all power source outputs are off

• Connect the system power circuit and connection signals as shown in figure 4 -to 6

• Launch RT-LAB

• Import model zip file (see below) in RT-LAB

• Build, load, and execute the model

• Power on the OPAL-RT OP8662

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Based on the preceding tests, the hardware, and the software included in Festo inverter connected to a RL load model are declared fully functional and compliant with OPAL-RT specifications.

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model model

Model (Zip File)

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