Dynamic load implementation used in phasor mode

Hey, This load implementation i found on example called "24-hour Simulation of a Vehicle-to-Grid (V2G) System" The model i'm trying to build is a simple synchrounus genertor driven by steam turbine. As mentioned in title i'm using phasor simulation mode. The basic problem i have with this model is that when the rotor is not in it's nominal speed (not in nominal frquency), i'm measuring wierd/wrong Active and Reactive Power for a given constant P & Q. and actuly i realy don't understand why this happend ? perhaps the resson for that is the phasor mode ?

Thanks in Advance, Dani

Answer 1

[Sebastian Castro]

Exactly as you said -- phasor mode makes the assumption that your whole system is at (or near) the fundamental system frequency. The validity of results drops off as you deviate from that frequency.

If you actually need to model significant deviations from that fundamental frequency, you will have to switch to continuous or discrete simulation mode.

http://www.mathworks.com/help/physmod/sps/powersys/ug/introducing-the-phasor-simulation-method.html

- Sebastian

[NN]

Hi Sebastian,

I am working with a microgrid model and I have power inverter/converter components. When I simulate in phasor mode i get errors. I am trying to do it in phasor mode since my model is very slow with discrete mode.I understand that Simulation under phasor mode (in Simulink software), does not allow some electric element models like diodes, inverter bridge models, transistor elements (IGBT and MOSFET). How can I solve this problem? What can I substitute for these elements? How can I model for these components which can be used for phasor mode?

Or else is there any way to increase the simulation speed of discrete model