The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The paper derives mathematical conditions for the occurrence of touching points on the hysteresis loop of an ideal voltage-controlled memristor driven by the sinusoidal voltage.
Crossing-type and non-crossing-type touching points of higher orders of a pair of arms of memristor pinched hysteresis loop are analyzed. Mathematical conditions of the occurrence of these points are derived for ideal voltage-controlled memristor driven by the sinusoidal voltage.
In first part of this paper the Maximum Power Point Tracking (MPPT) technique for photovoltaic (PV) panels based on Extremum Seeking Control (ESC) scheme is analyzed. It is important to know how much energy can be harvested from a PV that uses a MPPT controller. In this paper, the ESC schemes are analyzed in the frequency domain. The modified ESC (mESC) and high-order ESC (hoESC) schemes are considered...
In the second part of this paper the Maximum Power Point Tracking (MPPT) technique for photovoltaic (PV) panels based on modified Extremum Seeking Control (mESC) is analyzed. Even the mESC scheme differs from the classical ESC schemes only on the filters' topology and their used parameter, this proposed control improves quite enough the performances of the PV energy harvesting in comparison with a...
This paper aims at compensating the dead-time effects in the vector-controlled induction motor system. It is used a feed-forward approach for the fundamental compensation and a feedback loop with adaptive GM filter and PI controllers for a harmonic compensation. The simulation results demonstrate the effectiveness of the proposed compensation strategy.
The paper deals with investigation of novel B3C converter which can be utilized as a part of power semiconductor system in traction, automotive, or industrial applications like renewable energy sources. Proposed solution of main circuit of B3C converter is based on buck-boost topology (BB), whereby energy transfer from source to load and vice versa is possible - bidirectional converter (B). Due to...
This paper describes control algorithm for the controlled single-phase H-bridge power inverter with LCL filter. The LCL type of the filter provides significant reduction of the current ripple. On the other hand the stability of the circuit is reduced as well, especially the current control stability which is the reason for double current control implementation. This solution provides direct current...
Optimal Pulse Width Modulation (OPWM) is an established technique to generate PWM waveforms with low base-band distortion. The technique requires fast PWM generator to minimize base-band distortion. The aim of this paper is to present a programmable PWM modulator optimized for high speed satisfying the OPWM technique demands. The PWM modulator stores pulse sequence data in an internal memory which...
This paper presents an effect of dead times on values of an input current harmonics drawn from an electric grid by a voltage-source active rectifier. The first part shows a derivation of the effect on one pulse of the voltage and then the values of the current harmonics are derived. The main section discusses a description of voltage with the pulse width modulation with respect to the dead time. A...
This paper deals with a new application of dissipation normal form (DNF). This special system structure respects the energy conservation law and can be interpreted as a system of state coupled oscillators. In this paper there is a nonlinear phase coupling introduced. The system of coupled oscillators can be generalized for n oscillators with different amplitudes and optional phase shift. Obtained...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.