This paper presents the problem of power penetration photovoltaic (PV) systems in urban networks. After a qualitative description, two different environments for PV have been analyzed: rural and Concerning network, single line has simulated order to evaluate relation between number installed along maximum installable. In second part this paper, possible problems due examined concerning clustered system that will be city Torino (Italy) within ambit EU project called POLYCITY.

This article reviews recent standardization activities and scientific studies related to the assessment of human exposure electromagnetic fields (EMF). The differences standards consumer products medical applications are summarized. First, we reviewed body modeling tissue dielectric properties. Then, explain rationale current from viewpoint EMF process for product compliance based on these standards. wireless power transfer, as an example emerging devices, environmental EMFs in our daily...

This paper proposes a methodology for the assessment of human exposure to magnetic fields generated by dynamic inductive power transfer systems automotive applications. Since field is pulsed, current safety standards and guidelines require use time-domain approaches evaluate peak exposure, which has be limited under prescribed limits. shows that, these kind systems, can efficiently evaluated means time-harmonic formulation. Furthermore, identify worst case scenario proposed applied real case.

This paper presents the operational planning of an integrated trigenerative system.The installation a CHCP plant depends on financial investments. work shows optimization procedure to foresee management system aimed increase yield investment. The seems well as foreseen PBP is short if compared with other similar installed plants. Nothing can be said about IRR, whose quality kind investment wished by manager.

The purpose of this paper is to analyze the main techniques for magnetic field mitigation at power frequency and assess their effectiveness presenting two real applications used as case studies. Some presented in literature are reviewed discussed. result preliminary numerical design compared with results measurements on installations, showing that available methods mature instruments measures.

This paper focuses on the development of a low-cost system, based Arduino, for active shielding magnetic fields generated by power systems at industrial frequency. The modeling source, design and optimization loop, and, finally, hardware (microcontroller, sensors, driven voltage etc.) control algorithm prototype system are described. A number tests, developed through an experimental setup, performed to validate prototype. main results also discussed highlighting capabilities proposed shielding.

In this article, we discuss numerical aspects related to the accuracy and computational efficiency of dosimetric simulations, performed in context human exposure static inductive charging systems electric vehicles. Two alternative methods based on vector potential scalar formulations, respectively, are here considered for field computation highly detailed anatomical models. The results obtained by implementation both approaches discussed terms compliance assessment with ICNIRP guidelines...

Anatomical human models have been widely used in the assessment of induced field strength for low-frequency (LF) electromagnetic exposure. One bottleneck is assignment a single electrical conductivity to all voxels corresponding tissue. This simplification known cause computational artifact; therefore, large reduction factor was considered international guidelines and standards. Recently, head with nonuniform conductivities generated using deep learning networks were proposed, effect on...

ABSTRACT The article is related to mitigation of magnetic field emitted by a 10/0.4 kV substation located in primary school Belgrade, Serbia. During the first testing classroom directly above substation, measured values flux density significantly exceeded reference level 40 μT prescribed Serbian legislation, and it was concluded that levels at transformer rated load could exceed 100 European Council Recommendation 1999/519/EC. For reason, 0.4 busbars near ceiling were removed replaced with...

In this paper, numerical and analytical approaches for the study of busbar systems are analyzed compared. first part multiconductor model (MC) is presented studying a general system equation formalized ldquocurrent-drivenrdquo ldquovoltage-drivenrdquo problems. Afterward, ldquoMC methodrdquo has been applied solving problem related to an industrial system. The evaluation current distribution electrodynamic forces compared with one obtained by using classical finite-element method. Finally,...

Low-frequency dosimetry is commonly assessed by evaluating the electric field in human body using scalar potential finite difference method. This method effective only when sources of magnetic are completely known and vector can be analytically computed. The aim paper to present a rigorous characterize source term flux density available at discrete points, e.g. case measurements. based on solution curl equation. system restricted independent set fluxes circulations topological information...

The paper presents a two-stage approach to solve class of nonlinear 3-D eddy current problems with high saturation, typical induction heating processes. proposed method separates the problem heavy nonlinearity from complexity geometry, by resorting 1-D fast solver which is coupled linear solver. Under certain hypotheses on shown be effective and accurate. Comparison commercial code are provided.

This paper deals with the design and final implementation of a low-cost active shielding system for mitigation magnetic fields generated by electrical installations like power lines or substations. In this new working prototype is built tested. It shown that developed control strategy effective also field sources complex geometries. Moreover, real-time optimizer added to in order guarantee minimization source at any conditions (i.e. different from rated power). The algorithm are fully...

This paper describes a simplified but effective methodology for the assessment of human exposure to magnetic field generated by resistance spot welding guns. The procedure makes it possible compute induced electric in time domain as required standardized pulsed fields (i.e., weighted peak method). In this paper, we show that proposed provides results accordance with rigorous approach, allowing huge reduction computational burden and, consequently, significant speedup.

For head magnetic resonance imaging, local gradient coils are often used to achieve high solution images. To accommodate the human and shoulder, usually designed in an asymmetric configuration, allowing region-of-uniformity (ROU) close coil's patient end. However, configuration leads technical difficulties maintaining a performance for insertable coil with very limited space. In this work, we present practical design of offering improved performance. proposed design, at end, primary...

In this study, the human exposure to magnetic field emitted by a wireless power transfer (WPT) system during static recharging operations of compact electric vehicle (EV) is evaluated. Specifically, influence posture realistic anatomical models, both in standing and lying positions, either inside or outside EV, considered. Aligned misaligned coil configurations WPT placed rear front position car floor are considered as well. Compliance with safety standards guidelines has proven that...

Reference values of exposure for working population at extremely low frequency electromagnetic fields have been stated in ICNIRP Guidelines 1998, and accepted by European Parliament 2004. Nevertheless, quantification coupling mechanism under pulsed field conditions is still an open question. The effect complex non-sinusoidal or non-periodic waveforms not univocally defined several ways estimating it proposed. This paper compares different assessing effects with spectrum below 100 kHz compare...

In this paper, a method for the assessment of magnetic properties ferromagnetic materials at low field values is presented. The knowledge these crucial design magnetically shielded rooms that must be effective against low-frequency external disturbances on order 0.1-1 μT. considered shielding structure composed by number layers made different high-permeability sheets as grain-oriented electric steel and nickel-iron soft alloy. in region follow Rayleigh law quadratic between flux density...

The key components in wireless power transmission for the recharging of electric vehicles are pair made by external line and on-board pickup module. This paper analyzes a charge while driving system using lumped parameter extraction with partial element equivalent circuit method simulation.