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 four-quadrant converters applied to the locomotive traction have higher requirements for the power density and reliability. Compared with conventional IGBTs, RC-IGBTs have the advantages of low thermal resistance and high current density. In this paper, RC-IGBT is applied to four-quadrant converter and the working characteristics and pulse distribution of four-quadrant converter under the desaturation...
The shunt regulator (SR) is a key part of the power conditioning unit, which is a kind of power supply system for spacecrafts. SR is a strong nonlinear system due to the hysteresis control adopted, but the stability analysis for SR is still ground on the approximate linearization. In this paper, a novel stability analysis method for strong nonlinear systems is proposed based on describing function,...
A spectrum calculation method based on double Fourier series for chaotic SPWM control is firstly established in this paper, where, a chaotic sawtooth carrier is used in the SPWM control; further, a PV inverter under SPWM control is employed in this paper and the spectrum of its output voltage are calculated by the proposed method in this paper. By comparing with the simulation and experiment results,...
The floating dc capacitor voltage of modular multilevel converter based STATCOM (M-STATCOM) contains a large amount of low-order harmonic components, which produce current ripple in leg currents, and then greatly affect the output performance and safe operation of M-STATCOM. However, fewer papers have made explicit harmonic analysis on the floating capacitor voltage of M-STATCOM. Detailed floating...
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.