COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 34 Issue 4

Reducing the impact of ELF electromagnetic fields of HV power cables on the environment by modeling the cable accessories

Underground cables can produce higher electromagnetic fields directly above them than an overhead line. The majority of cable failures on distribution system are caused by defects…

Modelling of a bipolar stent-based electrode for thermal radio frequency ablation of tumours located in hollow organs

In this paper a numerical simulation analysis of a modified stent-based electrode is introduced to be used as a bipolar electrode for radio frequency ablation of tumours located…

Improved coil design for repetitive magnetic stimulation of the spinal cord

– The purpose of this paper is to evaluate the response of the spinal cord, the transmembrane potential, during lumbar magnetic stimulation, using a figure of eight coil.

External electrostatic field induced changes of rat erythrocyte membranes

The purpose of this paper was to reveal the possible changes in membrane physical parameters, such as surface charge, ξ-potential and molecular interactions of membrane components…

Using multiple exposimeters to evaluate the influence of the body when measuring personal exposition to radio frequency electromagnetic fields

Since first small personal exposimeters became available, some studies have characterized personal exposition to radio frequency electromagnetic fields. The effect of body and…

The in vitro influence of external electrostatic field on the lipid-protein interactions in membranes of rat erythrocytes

The purpose of this paper is to investigate the in vitro influence of 200 kV/m electrostatic fields (ESF) on the microviscosity, viscosity and polarity of rat erythrocyte…

Response of personal exposimeters for exposure assessment in the GSM900 downlink band

The purpose of this paper is to numerically determine the distribution of electric fields registered by a personal exposimeter (PEM) used for the Global System for Mobile…

A mathematical framework for predicting thermal damage during bone electrostimulation

Electric fields (EFs) are known to influence cell and tissue activity. This influence can be due to thermal or non-thermal effects. While the non-thermal effects are still matter…

Design and implementation of maximum constant boost switched inductor z-source inverter for three-phase on-line uninterrupted power supply

The purpose of this paper is to present the Switched Inductor Z-Source Inverter (SLZSI) topology for three-phase on-line uninterruptible power supply (UPS) by employing third…

Dynamic phasor analysis and design of phase-locked loops for single phase grid connected converters

The purpose of the paper is to introduce the dynamic phasor modelling (DPM) approach for stability investigation and control design of single-phase phase-locked loops (PLLs). The…

Analysis of finite frequency selective surfaces backed by dielectric substrate using sub-entire-domain basis function method

Analysis of the frequency selective surface (FSS) is of great significance. In the method of moments, when the electric size of the FSS increases, huge in-core memory and CPU time…

Immunity of current-to-voltage transducer, with coils manufactured by means of multilayered PCB technology, to external magnetic fields

The purpose of this paper is to discuss the operation of new generation electromagnetic current-to-voltage transducer. The aim of research was analysis of behaviour of considered…

A high-performance low-voltage current-mode min/max circuit

Current-mode approach promises faster and more precise comparators that lead to high-performance and accurate winner-take-all circuits. The purpose of this paper is to present a…

Simulation of nonlinear systems subject to modulated chirp signals

– The purpose of this paper is to apply a novel technique for the simulation of nonlinear systems subject to modulated chirp signals.

Design of a fractional order adaptive controller for velocity control of a permanent magnet synchronous motor

– The purpose of this paper is to present a two-loop approach for velocity control of a permanent magnet synchronous motor (PMSM) under mechanical uncertainties.

Efficiency optimization of a two-port microwave oven: a robust automated procedure

In the paper, a single-objective optimization problem characterized by high-frequency field analysis is investigated: the optimal design of a two-port microwave (MW) oven, taking…

A hybrid controller for PWM active rectifiers based LCL filters

The purpose of this paper is to propose a new hybrid control method of pulse width modulation (PWM) active rectifiers tied to the grid through an LCL filter. The control method is…

Genetic algorithm based automated threshold estimation in translation invariant wavelet transform for denoising PD signal

The purpose of this paper is to investigate the condition of insulation in high-voltage equipments using partial discharge (PD) measurements. It proposes the methods to eliminate…

Miniaturized stacked implant antenna design at ISM band with biocompatible characteristics

A vertically stacked, three layer hybrid Hilbert fractal geometry and serpentine radiator-based patch antenna is proposed and characterized for medical implant applications at the…

Design of a new nonlinear model predictive fault tolerant control system using multi-sensor data fusion technique based on UKF algorithm

There are high expectations for reliability, safety and fault tolerance are high in chemical plants. Control systems are capable of potential faults in the plant processing…

Design optimization for cogging torque mitigation in brushless DC motor using multi-objective particle swarm optimization algorithm

The purpose of this paper is to propose a multi-objective particle swarm optimization (MOPSO) algorithm based design optimization of Brushless DC (BLDC) motor with a view to…

A Chebyshev collocation method for Hallén’s equation of thin wire antennas

– The purpose of this paper is to propose a Chebyshev collocation method (CCM) for Hallén’s equation of thin wire antennas.

Determination of the convective heat transfer coefficient in large electrical machines by a new simulation strategy

The purpose of this paper is to present a new computational fluid dynamics model for large electrical machines to simulate the heat transfer at specific components to the…

Guest editorial