A Study on the Electromagnetic Fields in Wind Mills Farm Area

9th International Conference on Ecological Vehicles and Renewable Energies (EVER) -- MAR 25-27, 2014 -- Monte Carlo, MONACO -- Monaco Dev Durable, IEEE Ind Applicat Soc, IEEE Power Elect Soc, IEEE Magnet SocThis study presents the mathematical model of electromagnetic waveforms parameters which can be used for determination of the electromagnetic pollution level in windmills farm. The electromagnetic field parameters such as electric field intensity and magnetic field density were measured by EMF detectors on different frequencies ranges. The measured values for the waveform reconstruction in time domain were processed using Inverse Discrete Fourier Transform (IDFT). Obtained wave shape of electric field strength as well as magnetic flux density allowed defining the general of electromagnetic radiation level in chosen measurement point of windmills farms which includes all electromagnetic radiation values from all possible nearby sources. Also analysis of electromagnetic radiation impact for environment was considered. The measurement parameters were compared with the limit values.WOS:0003602889000072-s2.0-8490447999

System of Power Supply and Oscillating Pulse Current Synchronous Drive in Power Network

9th International Conference on Ecological Vehicles and Renewable Energies (EVER) -- MAR 25-27, 2014 -- Monte Carlo, MONACO -- Monaco Dev Durable, IEEE Ind Applicat Soc, IEEE Power Elect Soc, IEEE Magnet SocThere are a number of electrical drives with oscillatory driven mechanisms. As a result it is possible to use oscillating movement electrical drives there. These drives create ineligible reactive power, therefore it is required to provide conductors with the bigger cross-section, to design reactive energy storage devices. Reactive power is objectionable in electrical power network. Thus, in order to ensure the best work of oscillating drive the necessity for searching of reactive power reduction or its use methods occurs. The aim of the research is to examine pulsed power supply and oscillating movement pulse current synchronous drive system, in order to minimize the reactive power usage from power supply network and increase drive efficiency. To achieve this purpose pulse power supply and oscillating movement drive system mathematical model was designed, the influence of selected pulsed power supply to oscillating movement, drive performance indicators was determined as well.WOS:0003602889000482-s2.0-8490449844

Parametric Estimation Problem for a Time Periodic Signal in a Periodic Noise

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