Fast Calculation of Electromagnetic Forces in IPMSMs Under PWM VSI Supply Based on Small-Signal Time-Harmonic Finite Element Method
نویسندگان
چکیده
This paper introduces a novel method for fast calculating the electromagnetic forces in interior permanent magnet synchronous machines (IPMSMs) under pulse width modulation (PWM) voltage source inverter (VSI) supply based on small-signal time-harmonic finite element analysis (THFEA), which has been successfully utilized PWM-induced losses silicon steel sheets and magnets. Based THFEA, functional relationships between high-frequency harmonic voltages (HFHVs) corresponding airgap flux densities are established, used density spectra caused by each HFHV PWM spectra. Then, superposition principle is applied fundamental currents all HFHVs, converted to force at last. The relative errors calculated with proposed those obtained from traditional time-stepping (TSFEA) using as input within 3.1%, while 24 times faster than TSFEA.
منابع مشابه
Fast Stiffness Matrix Calculation for Nonlinear Finite Element Method
We propose a fast stiffness matrix calculation technique for nonlinear finite element method (FEM). Nonlinear stiffness matrices are constructed usingGreen-Lagrange strains, which are derived from infinitesimal strains by adding the nonlinear terms discarded from small deformations. We implemented a linear and a nonlinear finite element method with the same material properties to examine the di...
متن کاملFast Electromagnetic Field Computations Using Multigrid Method Based on Nested Finite Element Meshes
|In this paper the investigation of the ef-ciency of the multigrid method as a solution method for large systems of algebraic equations that arise from ordinary nite element analysis is presented. The mathematical background for multigrid methods and some points regarding deenition of restriction and prolongation matrices for multigrid nite element analysis based on nested meshes are also given...
متن کاملFast Finite Element Method Using Multi-Step Mesh Process
This paper introduces a new method for accelerating current sluggish FEM and improving memory demand in FEM problems with high node resolution or bulky structures. Like most of the numerical methods, FEM results to a matrix equation which normally has huge dimension. Breaking the main matrix equation into several smaller size matrices, the solving procedure can be accelerated. For implementing ...
متن کاملA Fast Time-Domain Finite Element–Boundary Integral Method for Electromagnetic Analysis
A time-domain, finite element–boundary integral (FE–BI) method is presented for analyzing electromagnetic (EM) scattering from two-dimensional (2-D) inhomogeneous objects. The scheme’s finite-element component expands transverse fields in terms of a pair of orthogonal vector basis functions and is coupled to its boundary integral component in such a way that the resultant finite element mass ma...
متن کاملElectromagnetic forces on a discrete spherical invisibility cloak under time-harmonic illumination.
We study electromagnetic forces and torques on a discrete spherical invisibility cloak under time-harmonic illumination. We consider the influence of material absorption and losses, and we show that while the impact of absorption on the optical force remains confined to frequencies near the absorption peak, its impact on the electromagnetic torque experienced by the cloak is spectrally broader ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: CES transactions on electrical machines and systems
سال: 2022
ISSN: ['2096-3564']
DOI: https://doi.org/10.30941/cestems.2022.00010