The paper deal with HF injection method for rotor position determination of sensorless permanent magnet sychronoous motor (PMSM) drive. Special attention is paid to generation - and injection of HF signal as well as to filtering of positive component of…

The paper analyses current and voltage unbalance caused by various unsymmetric loads in MV and HV networks. It refers to a different unbalance definitions and compares them with the values measured by apparatus dedicated to the power quality measurements. If…

Some properties of "index guiding photonics crystal fibres" do not correspond to this name. As it is shown in this paper, the influence of mechanical bending on the transfer function as well as the shape of their modal field documments…

Eddy current method is one of many methods of nondestructive testing. The aim of nondestructive testing is prevention of equipment breakdown without any impact on equipment operation. Especially breakdowns coused by hidden material defect from witch is equipment or part…

The electric traction vehicle producting plant SKODA Plzen - Transportations develops and produces electric traction drives with the top technological niveau. Electric vehicles are delivered to transport institutions in Czech Republic as well as abroad. Many Ma, and PhD. graduates…

This paper deals with convergence parameters determination of adaptive algorithms, which are used in adaptive L-filters design. Firstly the stability of adaptation process, convergence rate or adaptation time, and behaviour of convergence curve belong among basic properties of adaptive algorithms.…

In this paper the original experimental method of determination of sign of Soret´s coefficient and approximately method of determination its value in coloidal fluid is presented. For heating of place, in which the change of nanoparticles concentration is observed, the…

This document describes processing basic measurement signals, which were used in test sequence with different coders. The determination of degradation degree of these signals and the elimination of these coders influences on these signals was the aim of this paper.…

Two network types had been existing in Slovakia by the end of the year 2004 – public switched telephone network – PSTN and packet switched data network – DCN. The other network, known as the next generation network – NGN,…

The article is aimed to ATM multiplexor computer model utilisation. Based on simulation runs we try to review aspects of use a synchronous and asynchronous ATM multiplexors. ATM multiplexor is the input queuing model with three inputs. Synchronous multiplexor works…