The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper presents a novel phasor diagram of interior permanent magnet synchronous (IPMS) motor for steady state analysis. Starting from first principle, the phase decoupled spiral vector model of the IPMS motor has been obtained. A phase decoupled voltage equation in phasor can be obtained from the spiral vector IPMS motor at steady state. In the phasor diagram, the effect of reluctance variation...
The nonlinear behavior of a self-excited, smooth air gap, cage induction generator feeding an inductive load is analyzed in this paper, allowing for the effects of machine saturation. The self autonomous system is shown to exhibit a transition from a periodic orbit to a quasi-periodic orbit through a Neimark bifurcation.
Switched reluctance motors (SRM) is gaining wider popularity for variable speed drives. These motors have been developed for electric propulsion, fan, pump and even as starter/alternator for aerospace applications. This paper gives the step-by-step design procedure of a 16/12 switched reluctance motor for a spacecraft actuator. Machine design has been started with analytical method to fix the major...
Accurate calculation of the core loss in a motor is essential for computing the actual efficiency. In a switched reluctance motor (SRM), the non-sinusoidal flux waveform with different frequencies of flux reversals in various parts of the motor makes the core loss calculation difficult. The conventional method for calculation of the core loss is based on the stator pole flux density variation in the...
This paper proposes a method for reduction of cogging torque with reduced stator tooth width and bifurcated active surface area using finite element analysis. For the proposed changes in the motor design the variation in the flux density distribution in the air gap, cogging torque and reluctance torque ripple are determined. The variations in the torque developed by the motor, cogging torque, output...
In this paper, the performance analyses of the three phase induction motors have been done by finite element method (FEM) using time harmonic and transient with motion solvers. If there is no saturation in the ferrous portion of the mutual-flux path, the flux wave in the motor approaches a sine-wave shape, but some amount of saturation always exists in a typical three phase induction motor that has...
During the past few decades, the numerical computation of magnetic fields has gradually become a standard in electrical machine design. Finite element method (FEM) has the advantage over previous design calculation procedures in that geometric variations and irregularities, saturation and eddy current effects can be modeled with a high degree of accuracy. Besides these advantages, the method does...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.