Search Results - "Maier, Virgil"

Harmonics Consequences on Drive Systems with Induction Motor by Beleiu, Horia Gheorghe, Maier, Virgil, Pavel, Sorin Gheorghe, Birou, Iulian, Pică, Constantin Sorin, Dărab, Pompei Cosmin

“…In the case of adjustable drives systems with an induction motor (IM), a harmonic regime is manifested, whose knowledge and analysis are always necessary…”
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Optimal Design of the Vertical Earthing with Electrodes Arranged in Line by Pavel, Sorin Gheorghe, Maier, Virgil, Ciorca, Claudiu, Beleiu, Horia Gheorghe, Birou, Iulian

“…The design methods of earthing from standards recommend the choice of electrode lengths and propose that the distances between electrodes to be 1–3 times…”
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Indirect Vector Control of an Induction Motor with Fuzzy-Logic based Speed Controller by BIROU, I., MAIER, V., PAVEL, S., RUSU, C.

“…The aim of this paper is to present a new speed control structure for induction motors (IM) by using fuzzy-logic based speed controllers. A fuzzy controller is…”
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Dimensioning Aspects of Horizontal Earth Grounding, With Pipe Type Electrodes by Maier, Virgil, Pavel, Sorin, Beleiu, Horia, Niste, Daniela, Darab, Cosmin

“…The sizing of earth grounding (EGR) is approached in the perspective of applying optimal criteria such as minimum footprint, conductive material consumption or…”
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Optimal Solutions Identification for Horizontal Earth Grounding, With Pipe Type Electrodes by Maier, Virgil, Pavel, Sorin Gheorghe, Beleiu, Horia Gheorghe, Niste, Daniela Florentina

“…The main purpose of the work is to identify the optimal domains for the earth grounding with horizontal, pipe-type electrodes. This continues a previous work,…”
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Harmonics of the Central Component of the PWM Inverter Output Voltage by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G.

“…Considering the output voltage of the PWM inverter from the photovoltaic power plants structure, as being formed by the superposition between a step type…”
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Harmonics of the Component Formed by Pairs of Alternative Unitary Step, Symmetrical Regarding the Central Step of the PWM Inverter Output Voltage by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Pavel, Tudor S.

“…The analytical approach of the output voltage of the PWM type inverter, from the composition of solar power plants, was possible by highlighting in the voltage…”
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Aspects on Harmonics Analytical Identification of a Periodic Non-Sinusoidal Wave by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Farcas, Vasile

“…Multiple fields of science and social life use representations of time variations for physical, chemical, biological, statistical variables. When the…”
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Dimensioning of the Vertical Earth Grounding with Rectangular Contour through Minimizing the Investments Costs by Ciorca, Claudiu, Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G.

“…The design of earth grounding (EGR) on optimal criteria has relaunched the seemingly stagnant problem of their dimensioning. The perspective opened by the…”
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Synchronous Motor Behavior in Harmonics by Beleiu, Horia Gheorghe, Maier, Virgil, Pavel, Sorin Gheorghe, Birou, Iulian, Pica, Constantin

“…In this paper is studied the behavior of salient-pole synchronous machines, operating as motor fed in harmonics. The reference situation is considered when the…”
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Additional indicators for short time overvoltages and voltage impulses by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Farcas, Vasile

“…The short time overvoltages and the voltage impulses represent Power Quality disturbances, with significant economic consequences, both for end-users and for…”
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Effects of Connecting Photovoltaic Power Plants on a Long Electrical Line by Pica, Constantin S., Pavel, Sorin G., Beleiu, Horia G., Maier, Virgil, Turcu, Antoniu C.

“…In this paper, we studied the effects of connecting photovoltaic power plants along a long electrical line, in order to analyze the maximum power that can be…”
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Dissipation Surface Minimization of Vertical Earth Grounding, with Rectangular Contour by MAIER, Virgil, PAVEL, Sorin G., CIORCA, Claudiu, BELEIU, Horia G, BIROU, Iulian

“…The application of optimal criteria for the earth grounding design has led to the distinct areas of their realization in the electrode length-distance plane…”
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Design of vertical earth grounding with rectangular outline by minimizing its total metal mass by Maier, Virgil, Ciorca, Claudiu, Pavel, Sorin G., Beleiu, Horia G., Birou, Iulian

“…The research continues applying optimal criteria for the design of earth grounding with vertical electrodes, placed around a rectangular contour. According to…”
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Vertical earth grounding design using optimal criteria by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Pica, Sorin C.

“…Properly sizing of earth grounding is a current issue of designers, because successive iterations required, which are determined by the nonlinearity…”
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Methodologies regarding the application of optimum criteria to the vertical earth grounding design, with rectangular outline by Maier, Virgil, Pavel, Sorin Gheorghe, Birou, Iulian, Beleiu, Horia Gheoghe, Ciorca, Claudiu

“…The earth grounding (EGR) computation model contained in normative acts has multiple nonlinearities and functions with implicit definitions. In addition,…”
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Optimal design of vertical earth grounding, with rectangular perimeter by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Pica, Constantin S.

“…In previous papers, the authors have resumed the earth grounding dimensioning with the intend to propose optimum criteria and to simplifying the design…”
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Nomograms for sizing the vertical earth grounding by Maier, Virgil, Pavel, Sorin G., Beleiu, Horia G., Birou, Iulian, Farcas, Vasile

“…The design of earth grounding at rated values corresponding to the role to be accomplished is relatively laborious and there are no highlighted optimum…”
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Synthesis and analysis of PWM inverter output voltages by Pica, Constantin Sorin, Maier, Virgil, Pavel, Sorin Gheorghe, Beleiu, Horia Gheorghe

“…The output voltage analysis of PWM inverter, from the photovoltaic (PV) power plant, represents the first of the objectives of this research. On the one hand,…”
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Comparative evaluation of vector control versus direct torque control for PM-SM drives by Birou, Iulian M. T., Rusu, Calin, Pavel, Sorin, Maier, Virgil

“…Based on previous research experience proved by simulated and experimental results a comparative discussion about advantages and disadvantages of using Vector…”
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