Excitation研发培训,设计培训.pptx

Synchronous Machines - Reactance and Excitation Calculation;Stator Revolving Magnetic Field;Synchronous Rotor;Synchronous Motor;Phasors and Phasor Diagrams;Phasor Diagram Example;Phasor Diagram Cont.;Cylindrical Rotor Synchronous Machine: Due to the even air gap, the formulations for basic machine quantities is simplified. We will consider the cylindrical machine theory first and then extend the analysis to the salient pole case.;Axis of Field;Ia;Cylindrical Rotor Phasor Diagram For Synchronous Generator;From the diagram it is evident that Er, the voltage induced in the stator by the effect of the armature reaction flux, is in phase with IaXl. ;Salient Pole Synchronous Machines;Salient Pole Synchronous Machine;Two Reaction Theory;Salient Pole Synchronous Machine;Two Reaction Theory: Introduction;Ia;Two Reaction Diagram;Ea;Ia;Pole Face Design - Magnetic Fields;Pole Face Design – Magnetic Fields;Pole Face Design – Magnetic Field;Pole Face Design – Magnetic Field;List of Pole Constants ;Pole Constants;Pole Constants;Pole Face Design – Magnetic Fields;Pole Face Design – Magnetic Fields;Pole Face Design – Magnetic Fields;Pole Face Design – Magnetic Fields;Pole Face Design – Magnetic Fields;Reactance Calculations;T = Common Reactance Factor m = # phases L = Stator Core Length f= frequency Z = Series Conductors per Phase Kw = Winding factor Stator P = # Poles;?a = Permeance Factor D = Diameter of Stator Bore P = # Poles Kg = Carter’s Gap Coefficeint gmin = Minimum air gap at center of pole;Armature Leakage Reactance is determined using a methodology identical to the induction machine.;Excitation Calculations;Excitation Calculations;Excitation Calculation ;Excitation Calculation Cont.;Field Excitation Cont.;Ia;Field Excitation Cont.;Field Excitation Cont.;Field Excitation Cont.;Field Excitation Cont. ;mmf;Field Excitation Cont.;Field Excitation Cont.;Field Excitation Cont.;Field Excitation Cont.;Field Excitation Finish;THE END ;9、春去春又回，新桃换旧符。在那桃花盛开的地方，在这醉人芬芳的季节，愿你生活像春天一