: Public abstract Class
Created: 03/28/2012 09:32:58 AM
Modified: 06/24/2012 04:50:23 PM
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Synchronous machine whose behavior is described by reference to a standard model expressed in one of the following forms:<br /></p><p><ul><li>simplified (or classical), where a group of generators or motors is not modeled in detail</li><br /></p><p></ul><ul><li>detailed, in equivalent circuit form</li><br /></p><p><li>detailed, in time constant reactance form (either transient or subtransient)</li><br /></p><p></ul><font color="#0f0f0f">or by definition of a user-defined model.</font><br /></p><p><font color="#0f0f0f"><br /></p><p></font><font color="#0f0f0f"><b>Note:</b>  It is a common practice to represent small generators by a negative load rather than by a dynamic generator model when performing dynamics simulations. In this case a SynchronousMachine in the static model is not represented by anything in the dynamics model, instead it is treated as ordinary load.</font><br /></p><p><font color="#0f0f0f"><br /></p><p></font><font color="#0f0f0f"><b>Parameter Notes:</b></font><br /></p><p><ol><li><font color="#0f0f0f">Synchronous machine parameters such as <b>Xl, Xd</b>,<b> Xp</b> etc. are actually used as inductances (L) in the models,</font> but are commonly referred to as reactances since, at nominal frequency, the per unit values are the same. However, some references use the symbol L instead of X. </li><br /></p><p><li>The following attributes from Wires::RotatingMachine are used for synchronous machine dynamics modeling:</li><br /></p><p></ol><ul><li>.ratedS (<b>MVAbase)</b></li><br /></p><p><li>.inertia (<b>H</b>)  Typical Value = 3.0,  </li><br /></p><p><li>.damping (<b>D</b>)  Typical Value = 0.0</li><br /></p><p><li>.saturationFactor (<b>S1</b>)  Typical Value = 0.02 (not used by simplified model, defined by S(E1) in the SynchronousMachineSaturationParameters diagram)</li><br /></p><p><li>.saturationFactor120 (<b>S12</b>)   Typical Value = 0.12 (not used by simplified model, defined by S(E2) in the SynchronousMachineSaturationParameters diagram)</li><br /></p><p><li>.statorLeakageReactance (<b>Xl</b>)  Typical Value = 0.15</li><br /></p><p><li>.statorResistance (<b>Rs</b>)  Typical Value = 0.005.</li><br /></p><p></ul><br /></p>
Element Source Role Target Role
TurbineGovernorDynamics
Class  
Name: SynchronousMachineDynamics
Synchronous machine model with which this turbine-governor model is associated.
Name: TurbineGovernorDynamics
Turbine-governor model associated with this synchronous machine model.
Details:
 
SynchronousMachine
Class  
Name: SynchronousMachineDynamics
Synchronous machine dynamics model used to describe dynamic behavior of this synchronous machine.
Name: SynchronousMachine
Synchronous machine to which synchronous machine dynamics model applies.
Details:
 
Element Source Role Target Role
ExcitationSystemDynamics
Class  
Name: ExcitationSystemDynamics
Excitation system model associated with this synchronous machine model.
Name: SynchronousMachineDynamics
Synchronous machine model with which this excitation system model is associated.
Details:
 
GenICompensationForGenJ
Class  
Name: GenICompensationForGenJ
Compensation of voltage compensator's generator for current flow out of this generator.
Name: SynchronousMachineDynamics
Standard synchronous machine out of which current flow is being compensated for.
Details:
 
Tag Value
GUIDBasedOn {575BECE2-4C08-40c3-9B81-1C8E6F4FCF8C}
Details:
 
Object Type Connection Notes
SynchronousMachineUserDefined Class Generalization  
SynchronousMachineDetailed Class Generalization  
SynchronousMachineSimplified Class Generalization  
IdentifiedObject Class Generalization