Park's Transformation Synchronous Machines Pdf Download > urlin.us/4sjaw
Park's Transformation Synchronous Machines Pdf Download
The default value is 0.0650 pu.Initial Conditions TabSpecify initialization bySelect between Electrical power and voltage output and Mechanical and voltage states. Lecture Notes on Power System Stability. The default value is 0 deg. Based on your location, we recommend that you select: . This parameter is visible only when you set Specify initialization by to Mechanical and voltage states.
Its value is always zero. Terminal active powerInitial active power. The default value is 60 Hz.Number of pole pairsNumber of machine pole pairs. This parameter is visible only when you set Specify initialization by to Mechanical and voltage states. The stator voltage equations are defined by ed=ed−Raid+xqiq andeq=eq−xdid−Raiq,where:ed and eq are the d-axis and q-axis voltages behind subtransient reactances.Ra is the stator resistance.id and iq are the d-axis and q-axis stator currents, defined by [idiq]=Ps[iaibic].ia, ib, and ic are the stator currents flowing from port to port n.xd and xq are the d-axis and q-axis subtransient reactances.ed and eq are the d-axis and q-axis stator voltages, defined by[edeq]=Ps[vavbvc].va, vb, and vc are the stator voltages measured from port to neutral port n.The rotor voltage equation is defined byefd=Rfd⋅ifd,where:Rfd is the resistance of rotor field circuit.ifd is the per-unit field current using the synchronous machine model reciprocal per-unit system.efd is the per-unit field voltage using the synchronous machine model reciprocal per-unit system.The voltage-behind-transient-reactance equations are defined bydeddt=(xq−xq)iq−edTq03,deq'dt=Efd−(xd−xd')id−eq'Td0',anddeqdt=eq'−(xd'−xd)id−eqTd03,where:xd and xq are the d-axis and q-axis synchronous reactances.Td0 and Tq0 are the d-axis and q-axis subtransient open-circuit time constants.Efd is the per-unit field voltage using the exciter model nonreciprocal per-unit system.xd is the d-axis transient reactance.eq is the q-axis voltage behind transient reactance.Td0 is the d-axis transient open-circuit time constant.The rotor torque is defined byTe=edid+eqiq−(xd−xq)idiq.These defining equations do not describe the parameters you can set in the dialog box. The default value is 0 deg.Initial voltage behind d-axis subtransient reactanceInitial voltage behind d-axis subtransient reactance. Its value is always zero.puidpuiqpui0 This port is provided to maintain a compatible interface for existing machine models.
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