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Through the analysis of the electromagnetic properties for the rotor coil of turbine generator, we obtained the main magnetic field variation characteristics for the rotor winding and put forward the short circuit fault between rotor inter-turns causing the potential difference and circulation between the parallel branches of generation stator winding spectral method was applied on the spectrum analysis...
This paper deals with the study of interturn short circuits in rotor windings of a synchronous generator using FEM. Results obtained for magnetostatic and magnetodynamic cases are presented and discussed.
A limited short circuit current PM motor is studied based on the segmentation of the rotor magnets. The principle is to reduce the magnetic flux by means of magnets subdivision and an increase of rotor pole number. The effect of magnet segmentation on machine characteristics is analyzed using finite element method (FEM). The short circuit current of designed fault tolerant machine is well limited...
It is shown that the electromagnetic theory of the superconducting AC machine is very close to that of the surface-magnet permanent-magnet synchronous machine. Methods for calculating the EMF and synchronous inductances are practically identical and almost interchangeable. It is not only possible to use related algorithms for design calculations, but the results are readily compared in a form convenient...
A dynamic model and simulation method of turbo-generator by reluctance network model is presented. The reluctance network model is based on the analogy between magnetic and electric circuits, and each tooth, yoke and slot of generator is expressed one of magnetic conductor cell, its main advantages are to take into the rotor movement and core saturation effects, with a good compromise between calculation...
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