.../approach The voltage harmonics are determined using the double Fourier integral. As for current harmonics and waveforms, a new generic model based on the Park transformation and a dq model of the machine was established taking saturation into consideration. The obtained analytical waveforms...

...Le Nhat Hoang Tran; Laurent Gerbaud; Nicolas Retière; Hieu Nguyen Huu Purpose Static converters generate current harmonics in power grids. For numerous studies, analytical frequency modeling is preferred to carry out their harmonic modeling in the context of sizing by optimization. However...

.... Design/methodology/approach The vectorized Jiles-Atherton hysteresis model is chosen for the accurate material losses calculation. It is transformed in the frequency domain and coupled with a harmonic balanced finite element solver. The beneficial Jacobian matrix of the material model in the frequency...

... of developing PWM techniques that can be deployed in multilevel inverters. These inverters decrease the total harmonic distortion and it has a good performance for various electrical power system applications. The proposed inverter is investigated for its performance by executing it in shoot through and non...

...Sasa Mujovic; Slobodan Djukanovic; Vladan Radulovic; Vladimir A. Katic Purpose – Low power devices with switched-mode power supply represent harmonic generating apparatus in widespread use nowadays. The influence of personal computers (PCs), which affect the supply voltage, is considered...

...Dr Ahmed Masmoudi; Aziz Boukadoum; Tahar Bahi; Youcef Soufi; Abla Bouguerne; Sofiane Oudina Purpose – The use of power electronic equipment such as conventional AC-DC-AC converters cause several problems in electrical networks and its components. They generate harmonic currents and disturb...

.... This reference is in general the negative terminal of the PV panel “N”. Accordingly, the common mode voltage is given by (1): © Emerald Group Publishing Limited 2015 Harmonics Electric converters Control theory Circuit analysis Leakage Power losses In 2012, the world’s cumulative solar...

... is to motivate the use of multilevel inverter as harmonic filter, which eliminates the coupling transformer and allows direct control of the power circuit. The advancement in artificial intelligence (AI) for computation is explored for controller design. Design/methodology/approach – The proposed scheme...

... – The impact of lamination thickness, size of gaps and type of joint of the core are considered. Considering the no-load testing conditions, harmonics in the exciting currents are taken into account. Originality/value – Harmonic wave of magnetic flux density in the transformer core is calculated...

... of this paper was to minimize the APF currents what is equivalent to solution with less apparent power of installed devices. The next step consists in development of new methods of APF optimal location. Design/methodology/approach Some scripts integrating optimization and harmonic analysis methods in Matlab...

.... The presented method will also allow the cooperation of several inverters creating an autonomous network. This system should also be able to reduce demanded higher harmonics in power voltage according to the list of numbers of these harmonics. In this article the authors describe a system that is used to create...

...Andrzej Demenko; Kay Hameyer; Wojciech Pietrowski; Livio Šušnjić; Krzysztof Zawirski; Adam Warzecha; Witold Mazgaj Purpose The aim of the paper is to present the approximation methods of the magnetizing characteristics of the salient pole synchronous machines with the fundamental MMF harmonics...

... to suppress the generated electromagnetic interference (EMI). Design/methodology/approach A chaotic carrier plays an important role to implement the chaotic PWM control. The relationship between the EMI distribution and carrier frequency is given by deducing and analyzing the harmonic components of the AC...

...Zainal Salam; Seh Soon Yee; Yasir Saleem Purpose This paper proposes an improved algorithm to compute selective harmonics elimination pulse width modulation (SHEPWM) angles, based on the Newton‐Raphson (NR) iteration for cascaded multilevel inverter (CMI). Design/methodology/approach Newton...

...Ivan Yatchev; Rumena Stancheva; Iliana Marinova; Jean‐François Lange; Laurent Gerbaud; Hieu Nguyen‐Huu; James Roudet Purpose An analytical approach is preferred to carry out the harmonic modelling of power electronics converters because it is generally faster than time simulation chained with FFT...

...Andrzej Demenko; Guest Co‐editors: Kay Hameyer; Stefan Kulig; Lech Nowak; Krzysztof Zawirski; Lovrenc Gašparin; Andrej Černigoj; Rastko Fišer Purpose The purpose of this paper is to present the dependence of the level and harmonic structure of the cogging torque in permanent magnet synchronous...

...Patrick Dular; Maurizio Repetto; R. Rothe; M. van der Giet; K. Hameyer Purpose The purpose of this paper is to present a method for analyzing higher magnetic force harmonics in electrical machines based on electromagnetic finite element simulation. Design/methodology/approach Sampling of air...

.... This semi‐analytical approach is based on the iron stator and rotor flux density repartition which is deduced from the air‐gap flux density. Findings The iron losses are not only due to the fundamental air‐gap flux density, but also to the slotting harmonics. In fact, the slotting effect generates...

...Tadeusz Sobczyk Purpose The purpose of this paper is to reduce issues arising when computing steady‐state solutions for AC machine models using the harmonic balance method. Design/methodology/approach Generally, currents at steady‐states of AC machines are described by periodic or quasi...

...Z. Salam Purpose The purpose of this paper is to propose an on‐line algorithm to calculate the switching angles of the harmonics elimination pulse‐width modulation (HEPWM) scheme that can be suitably implemented using a simple microprocessor/microcontroller. It is to be used for three‐phase...