COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 28 Issue 2

Study of the jump conditions for the 2D MEP hydrodynamical model of charge transport in semiconductors

A.M. Blokhin, R.S. Bushmanov

The purpose of this paper is to reply to the following question: do there exist piecewise smooth solutions to the 2D MEP hydrodynamical model of charge transport in semiconductors…

Characterization and optimization of a permanent magnet synchronous machine

Peter Sergeant, Guillaume Crevecoeur, Luc Dupré, Alex Van den Bossche

The first purpose of this paper is to identify – by an inverse problem – the unknown material characteristics in a permanent magnet synchronous machine in order to obtain a…

Applications of nonlinear estimation techniques

Aaron S. Brown, David F. Hardiman

The purpose of this paper is to provide an analysis on using two non‐conventional nonlinear estimating filters compared to the traditional linearized extended Kalman filter (EKF)…

Fast multipole boundary element method for electrostatic field computations

G. Of, M. Kaltenbacher, O. Steinbach

A wide range of micro‐electro‐mechanical‐systems are based on the electrostatic principle, and for their design the computation of the electric capacities is of great importance…

A method of analysing the thermal field in a three‐zone polymeric cable

Jerzy Gołębiowski, Marek Zaręba

The purpose of this paper is to present a method of solving a thermal conduction equation in three‐zone axially‐symmetrical systems.

Positive 2D fractional linear systems

Tadeusz Kaczorek

The purpose of this paper is to introduce a new class of positive two‐dimensional (2D) fractional linear systems.

Analytical drain current model for nanoscale strained‐Si/SiGe MOSFETs

Himanshu Batwani, Mayank Gaur, M. Jagadesh Kumar

The purpose of this paper is to present an analytical drain current model for output characteristics of strained‐Si/SiGe bulk MOSFET.

An efficient algorithm of transient responses on wind turbine towers struck by lightning

Wang Xiaohui, Zhang Xiaoqing, Yang Dasheng

The purpose of this paper is to propose an efficient algorithm for computing the transient responses on wind turbine (WT) towers struck by lightning.

Optimum regulation of DC sources in cascaded multi‐level inverters

S.H. Fathi, M.G. Hosseini Aghdam, A. Zahedi, G.B. Gharehpetian

The purpose of this paper is to introduce a new concept in selecting the values of the DC source voltages in cascaded multi‐level inverters in order to improve the output voltage…

Trefftz collocation method analysis of microstrip antennas

Berardi Sensale Rodriguez, Berardi Sensale Cozzano

The purpose of this paper is to introduce a fast and simple method to calculate an estimation of parameters of interest of microstrip antennas, such as the resonance frequencies…

A new model for a safety analysis in a system of earthing systems interconnected through bare‐buried conductors

Gaetano Zizzo, Angelo Campoccia, Eleonora Riva Sanseverino

The purpose of this paper is to present a mathematical model for studying the effects of the interconnection through bare‐buried conductors (BBC) of the secondary substations'…

A new sensorless hysteresis direct torque control algorithm for PMSM with minimum torque ripples

Ali Ahmed Adam, Kayhan Gulez

The purpose of this paper is to describe a new method for sensorless hysteresis direct torque control (HDTC) algorithm for permanent magnet synchronous motor to minimize torque…

Fault detection based on continuous wavelet transform and sensor fusion in electric motors

Emine Ayaz, Ahmet Öztürk, Serhat Şeker, Belle R. Upadhyaya

The purpose of this paper is to extract features from vibration signals measured from induction motors subjected to accelerated aging of bearings by fluting tests.

Influence of foundation on pillar grounding system's characteristics

Nenad N. Cvetkovic, Predrag D. Rancic

The purpose of this paper is to estimate influence of the pillar concrete foundation approximated by a semiconducting semi‐sphere on the pillar grounding system.

Numerical determination of Jiles‐Atherton model parameters

Xiaohui Wang, David W.P. Thomas, Mark Sumner, John Paul, Sérgio H.L. Cabral

The purpose of this paper is to propose a robust method to estimate the parameters of Jiles‐Atherton model of ferromagnetic hysteresis by fitting the model to symmetrical…