SynchronousGeneratorMechanicalEquation : Documentation diagram
Created: |
02/08/2012 05:27:40 PM |
Modified: |
04/18/2012 02:27:03 PM |
Project: |
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Author: |
ppbr003 |
Version: |
1.0 |
Advanced: |
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ID: |
{DEB724A1-78E4-42ad-A4ED-8C3FE50B18E2} |
The mechanical equations for all the variations of the generator synchronous model are the same and can be represented by the SynchronousGenerator MechanicalEquation block diagram. All variables are per unit on generator MVA base except angle, which is in radians. <b>wo</b> is the system synchronous frequency in radians per second. <b>wref</b> is the per unit system frequency (or isolated area frequency), which may be constant at the initial frequency or vary during a simulation depending on the application program.<br /></p><p>The input to the mechanical equations may be either <b>Pm</b> or <b>Tm</b> depending on the application program. Application programs using <b>Pm</b> as the input with the damping feedback subtracted from <b>Pm</b> will need to increase <b>D</b> by 1 as shown. In that case, the damping feedback to the torque summer is not used.<br /></p>