نتایج جستجو برای: pole and slot number combination
تعداد نتایج: 16897350 فیلتر نتایج به سال:
let g=(v,e) be a graph with vertex set v and edge set e.for two vertices u,v of g ,the closed interval i[u,v] ,consists of u,v and all vertices lying in some u-v geodesic in g.if s is a set of vertices of g then i[s]is the union of all sets i[u,v]for u,v ? s. if i[s]=v(g) , then s is a geodetic set for g.the geodetic number g(g) is the minimum cardinality of geodetic set.the maximum cardinalit...
In this paper, a brushless wound rotor vernier machine (Bl-WRVM) with single inverter configuration is proposed to achieve the operation. topology, connected series-connected ABC and XYZ windings through which current flow produces magnetomotive force fundamental sub-harmonic components, respectively. The have similar pole pairs excitation windings, whereas its number of poles different from wi...
In this paper, a novel method is presented for detection and classification of the faultyphase/region in the stator winding of synchronous generators on the basis of the resulting harmoniccomponents that appear in the terminal voltage waveforms. Analytical results obtained through DecisionTree (DT) show that the internal faults are not only detectable but also they can be classified andthe rela...
One of the usual ways to dissipate excess energy in the dam's downstream is hydraulic jump. Hydraulic jump is a rapidly varied flow, in which the flow conditions change from supercritical to sub-critical with a large amount of energy loss. In this research, a combination of two water jets in the form of overflow dam and underflow through a slot on the body of an ogee dam with the USBR standard ...
In this paper, an axial slot-less permanent magnet synchronous motor (ASFPMSM) was designed to increase the power density. The iron core of stator replaced with block coils, and back yoke removed because 3D printing can provide a wide range structures stator. proposed model also significantly impacts efficiency it reduce loss. To meet size performance requirements, coil thickness number winding...
This paper presents a subharmonic-based brushless wound rotor synchronous machine (BL-WRSM) topology with permanent magnet-assisted (PMA) and consequent-pole (CP) structures to achieve better torque characteristics as compared the conventional WRSM. The proposed topologies use high-efficient subharmonic field excitation technique operation lower volume of magnet (PM) average, starting, maximum,...
Cogging torque and electromagnetic vibration are two important factors for evaluating permanent magnet synchronous machine (PMSM) key issues that must be considered resolved in the design manufacture of high-performance PMSM electric vehicles. A fast accurate magnetic field calculation model interior (IPMSM) is proposed this article. Based on traditional potential permeance method, stator coggi...
Permanent magnet synchronous motors (PMSMs) are used in many applications including the control systems due to their high efficiency, high power density, good dynamic behavior, high precision and excellent controllability. One of the PMSM problems is the cogging torque which is made by interaction between PMs and stator teeth. This leads to some noise and vibration of the motor that in control ...
Thrust ripple and density greatly impact the performance of linear machine other actuators, causing positioning control precision, dynamic performance, efficiency issues. Generalized pole-pair combinations are difficult to satisfy both thrust for double salient reluctance machines. In this paper, a DC-Biased vernier (DCB-VRLM) is proposed solve abovementioned The key design reduce enhance with ...
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