COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 25 Issue 4

A discrete‐time model including cross‐saturation for surface permanent‐magnet synchronous machines

To provide a discrete‐time nonlinear model for surface permanent‐magnet synchronous machines (SPMSMs) in order to discuss the stability of such machines.

Frequency and time domain homogenization of laminated magnetic cores and windings in FE models of high‐frequency electromagnetic devices

To review and discuss recently proposed homogenization methods for laminated magnetic cores and multi‐turn windings in FE models of electromagnetic devices.

Comparison of artificial immune systems and genetic algorithms in electrical engineering optimization

The purpose of this study is to investigate and compare the ability of a new optimization technique based on the emulation of the immune system to detect the global maximum with…

Minimal positive realizations for discrete‐time systems with state time‐delays

Aims to formulate and solve the minimal positive realization problem for discrete‐time linear single‐input, single‐output systems with many state time‐delays.

DSP microcontroller‐based fuzzy control of a DC/DC parallel resonant converter using phase‐shift PWM technique

To analyze the operating performance of an ac‐dc‐ac‐dc PWM parallel resonant converter operating at lagging power factor mode controlled based on fuzzy logic control method.

Hybrid GA neuro‐fuzzy damping control system for UPFC

The aim of the paper is to develop a novel genetic algorithm (GA)‐based supplementary NeuroFuzzy damping control system for the unified power flow controller (UPFC).

A new computational approach for optimal reconfiguration of radial distribution systems using a fuzzy controlled genetic algorithm

This research paper reports a novel genetic algorithm (GA)‐based approach for reconfiguration of radial distribution networks for real loss minimization and power quality…

Steady‐state modeling of a phase‐shift PWM parallel resonant converter

To derive an analytical model for a dc‐ac‐dc parallel resonant converter operating in lagging power factor mode based on the steady‐state operation conditions and considering the…

Efficient computation of the periodic steady state solution of nonlinear electric systems applying parallel processing techniques

To introduce an efficient methodology for the computation of the periodic steady state solution of power systems with nonlinear and time‐varying components which combines a Newton…

Novel efficient methods for inductance calculation of meander inductor

Present 3D electromagnetic simulators have high accuracy but they are time and memory expensive. Owing to a fast and simple expression for inductance is also necessary for initial…

The multi‐mode chaotic behaviors: N+N and 2D N‐scroll chaotic attractors

The purpose of this paper is to present a simulation and realization of the different types of chaotic attractors using the generalized Chua's circuit equations.

Sliding‐mode control for speed sensorless induction machine drive using an adaptive nonlinear rotor flux observer

To propose and adaptive nonlinear controller for adjustable speed sensorless induction motor drive, using a novel adaptive rotor flux observer. The adaptive flux observer scheme…

Detection of acceptability regions by means of an interval arithmetic‐based algorithm

To introduce an interval arithmetic (IA)‐based approach to tolerance analysis and design and to yield evaluation. The technique distinguishes itself by its reliability in the…

Simulation of silicon semiconductor devices by means of a direct Boltzmann‐Poisson solver

The purpose of this paper is to present a new deterministic solution method to the coupled Boltzmann‐Poisson system for simulating semiconductor devices.

Improved fast evolutionary program for optimum design of power transformer

The power transformer is one of the most important pieces of equipment in a power system. The necessity for the optimum design of a power transformer arises because the design…

Electromagnetic plane wave scattering from building surfaces

To provide a detailed investigation about methods commonly used for the computation of high‐frequency electromagnetic fields in the vicinity of obstacles that can reflect or…

Evaluation of UPFC and ASVC applied to nonlinear load model

Unified power flow controller (UPFC) and advanced static VAR compensator (ASVC) devices are now recognized as the most important flexible AC transmission systems (FACTS) devices…

Awards for Excellence