I'm using DC Machine block from SimPowerSystem toolbox in Simulink and I would like use it as generator mode. I use the speed as mechanical input and I don't know if this speed must be introduced positive or negative for using generator mode. In addition I don't understand the help and I am confuse about the sign of the output speed and output torque when DC machine is generator.
Can anyone help me?
Generator==> I/P(Mechanical)(i.e. Negative for DC machine e.g. (-1 N.m (Torque))--> O/P (Electrical).
If you need more explanation for this. Check this link too... http://www.mathworks.com/help/physmod/powersys/ref/dcmachine.html
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