Why there is Voltage value is negative?

Why there is Voltage value is negative? This is modelling of Wind Turbine.

[Dr Narayanaswamy P R Iyer]

Why there is Voltage value is negative?

You have to check the complete oscilloscope waveform. This negative value could be due to PMSM acting as a generator.

Answer 1

[Joel Van Sickel]

The display shows the instantaneous voltage, and as the machine is spinning, it will create an AC waveform, so you should get negative and postive values.

[Jignashu Gohel]

Thank you Sir.

Sir, How we get positive values?

I.e : What is expected simulation time to get positive values?

[Joel Van Sickel]

please follow the comment from Dr. Narayanaswamy, place a scope to view the signal instead of a display. If you need more information on how to use the tools, here are 3 free trainings.

https://www.mathworks.com/learn/tutorials/simulink-onramp.html

https://www.mathworks.com/learn/tutorials/simscape-onramp.html

https://www.mathworks.com/learn/tutorials/circuit-simulation-onramp.html

Regards,

Joel

[Jignashu Gohel]

Thank You Sir, I will follow your instructions.