The outline design of a fully superconducting motor for liquid hydrogen pump with a magnesium-diboride (MgB2) superconducting wire is carried out to present various advantages arising from its prospective performances. The squirrel-cage rotor winding composed of superconducting loops with the MgB2 wire enables us to operate the motor not only in a slip mode but also in a synchronous rotation mo...

This work is a continuation of the fundamental study on implementing an innovative method repairing electric motors using ultrasound. A dismantling windings based ultrasound has been carried out for purpose energy efficiency, environmental friendliness and less time spent repair cycle in terms removing stator winding. The investigated optimal number technical issues comparison with existing met...

The synchronous homopolar motor (SHM) with an excitation winding on the stator and a toothed rotor is good alternative to traction induction motors for hybrid mining trucks. main problem in design of SHM electric drives that magnetic flux forms three-dimensional loops and, as result, lack high-quality optimization methods, which leads need overrate installed power inverter. This article discuss...

The oil injection method was studied to maximize the cooling performance of an electric vehicle motor with a hairpin winding. using is proportional contact area and coil. A numerical analysis conducted examine effect spray nozzle type on flow. dripping forms thickest film coil, making it most effective for hairpin-type motors. Subsequently, experimental study optimize diameter number nozzles. W...

The mathematical concept of topology has brought about significant advantages that allow for a fundamental understanding of the underlying physics of a system. In magnetism, the topology of spin order manifests itself in the topological winding number which plays a pivotal role for the determination of the emergent properties of a system. However, the direct experimental determination of the to...

In this paper, Wavelet based ANFIS for finding inter turn fault of generator is proposed. The detector uniquely responds to the winding inter turn fault with remarkably high sensitivity. Discrimination of different percentage of winding affected by inter turn fault is provided via ANFIS having an Eight dimensional input vector. This input vector is obtained from features extracted from DWT of i...

Primordial black hole formation by cosmic string collapse is reconsidered when the winding number of the string is larger than the unity. The line energy density of the multiple winding string becomes greater than that of the single winding string so that the probability of the black hole formation by the string collapse during the loop oscillation would be strongly enhanced. Although the produ...

A novel open-winding brushless doubly-fed reluctance machine and its power decoupling control system are proposed for wind power generator application. The control winding of brushless doubly-fed reluctance generator (BDFRG) is designed as openwinding structure, and the double-end power supply cascade two-level inverter is adopted to excite the open-winding BDFRG. This topology structure has be...

The Topological Tverberg Theorem claims that any continuous map of a (q − 1)(d+ 1)simplex to R identifies points from q disjoint faces. (This has been proved for affine maps, for d ≤ 1, and if q is a prime power, but not yet in general.) The Topological Tverberg Theorem can be restricted to maps of the d-skeleton of the simplex. We further show that it is equivalent to a “Winding Number Conject...