This paper establishes the force-harmonic coupling model considering phase angle characteristic for analysis and reduction of slot frequency force harmonic PMSMs. Compared with traditional analytical model, significant influence on relationship among components is considered in model. Firstly, deduced based Maxwell stress tensor, contributing to harmonic, these are divided a series combinations...

The existing imbalance compensation strategies for magnetic suspension motors mainly focus on the mass unbalance force, ignoring effects of unbalanced magnet pull (UMP). This paper studied vibration mechanism and strategy suspended permanent synchronous motor (PMSM) under influence UMP. Firstly, an analytical model flux density was established based equivalent circuit method, then expressions U...

In a previous paper we showed that the electromagnetic superenergy tensor, the Chevreton tensor, gives rise to a conserved current when there is a hypersurface orthogonal Killing vector present. In addition, the current is proportional to the Killing vector. The aim of this paper is to extend this result to the case when we have a two-parameter Abelian isometry group that acts orthogonally tran...

We consider the Dirac equation in flat Minkowski 3–space and rewrite it as the Maxwell equation in Minkowski 4–space with torsion. The torsion tensor is defined as the dual of the electromagnetic vector potential. Our model clearly distinguishes the electron and the positron without resorting to “negative frequencies”: we produce a real scalar invariant (charge) which indicates whether we are l...

We give a systematic account of the exterior algebra of forms on q-Minkowski space, introducing the q-exterior derivative, q-Hodge star operator, q-coderivative, q-LaplaceBeltrami operator and the q-Lie-derivative. With these tools at hand, we then give a detailed exposition of the q-d’Alembert and q-Maxwell equation. For both equations we present a q-momentum-indexed family of plane wave solut...

The BFV-BRST Hamiltonian quantization method is presented for the theories where gauge parameters are restricted by differential equations. general formalism exemplified Maxwell-like theory of symmetric tensor field.

The general form of the Stefan-Boltzmann law for the energy density of black-body radiation is generalized to a spacetime with extra dimensions using standard kinetic and thermodynamic arguments. From statistical mechanics one obtains an exact formula. In a field-theoretic derivation, the Maxwell field must be quantized. The notion of electric and magnetic fields is different in spacetimes with...

The article determine a relativistic tensor of the second rank containing vectors electric and magnetic polarization medium, based on Maxwell equations determination charge density current structural microparticle. Using this electromagnetic field tensor, lagrangian interaction an with microparticle is obtained, taking into account its elements. Based induced moments, constructed considering po...