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.
A new asymmetrical hybrid multilevel inverter topology is presented. The new topology improve the number of the output voltage level greatly through cascading two five-level H-bridge cells. A hybrid PWM strategy is proposed for the new topology that the switches of different cells works in different switching frequency to low switching losses. Lastly, an experimental 17-level asymmetrical inverter...
In this paper, various dynamic slip control topologies are proposed for the control of grid connected opti-slip induction generator (OSIG). An elegant technique based on rotor voltage measurement has also been presented for mitigating output power fluctuations from OSIG, due to sudden wind gusts, tower shadow effect, etc. The control of OSIG is achieved using the basic principle of chopper control...
In this paper, two control strategies for three-phase series-parallel uninterruptible power supplies are compared. A series-parallel UPS consists of a parallel and a series converter. In this topology, most power required by load is supplied directly from AC line during standby mode. Therefore the overall efficiency is higher than that of a conventional UPS. Traditionally, the control strategy of...
In this paper, a novel five-phase five-level inverter based on H-bridge is proposed. Then, the PWM control strategies of this inverter are researched. As the five-phase five-level inverter has 3125 space voltage vectors, it makes SVPWM algorithm extraordinarily complex and too difficult to implement. So, it is a feasible control scheme to adopt carrier-based PWM method. According to phase-shift SPWM...
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.