Steinmetz formulaIssues of determining losses in the magnetic system of a high-speed 8/6 switched reluctance generator are considered. The magnetic circuit of the generator is made of 20HX1300 sheet electrical steel with a thickness of 0.2 mm. The field-reversal frequency is 1200 Hz. Losses are...
For those motors it was relatively easy to explain the mechanism of torque production using the ‘force on a conductor' formula (‘BIl'), and because the windings were sinusoidally distributed in space, and the currents were sinusoidal in time, we were able to make extensive use of space ...
Using a newly defined pole design formula, several novel combinations of the stator-rotor poles have been proposed. From the simulation and experimental analysis of a prototype 6/10 configuration, it has been observed that this machine produces higher torque per unit volume and comparable torque ...
As airgap permeance component in switched reluctance motors is analyzed,its common integral function is induced.A universal alterative formula and a corres... Wang Da-wei - 《Small & Special Electrical Machines》 被引量: 0发表: 2006年 Declinator with reluctance component 所公开的方位计具有用于施...
In this paper, the motor configuration is presented first. Then, power and geometrical formulae are derived. Afterwards, the design of the proposed motor is presented. To verify the designed machine accuracy, 3D Finite Element Analysis (FEA) is carried out. Finally, the laboratory test results ...
A mathematical model of switched-reluctance motor drive for electrical spindle in synthetic yarn machine The article deals with the modeling of switched-reluctance drive motor for electrical spindle in synthetic yarn machine. We propose to use the backward differentiation formula to solve a system of ...
A Second Class of Analytic Approximation Formulae, Quarterly of Applied Mathematics 4(2): 112–141 Sheth NK, Rajagopal KR (2004) Torque profiles of a switched reluctance motor having special pole face shapes and asymmetric stator poles. IEEE Trans Magn 40(4):2035–2037 Article Google Scholar ...
They are used to calculate total force of the objects in the magnetic field. They have more a mathematical than physical meaning. The second group contains the equivalent source methods (equivalent charge or current) and the methods based on Lorentz formula. Some of the time, we need to ...
Applying the co-energy formula to equations for torque, Tph=∂W(θph)∂θr, and energy, W(iph,θph)=iph∫0λph(iph,θph)diph yields an integral equation that defines the instantaneous torque per phase, that is, Tph (iph,θph)=iph∫0∂λph(iph,θph)∂θphdiph. Integrating...
For any motor, the copper loss can be estimated from the formula given in (1). Due to proximity and skin effects, the value of R is greater than the DC resistance. The value of core loss in a separated conductor depends on the proximity of the conductor to the steel core. In ...