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.
Vienna and Modular three phase Boost power factor correction rectifiers are similar in working principle and performance. In this paper two rectifier schemes are presented as Vienna Rectifiers scheme-1 and scheme-2. A third three phase rectifier scheme, the three phase three switch modular SEPIC rectifier topology is also presented. The SEPIC topology has step-up/down voltage gain characteristic,...
The mathematical and simulation model of three-phase voltage source rectifier (VSR) used in aircraft is introduced in this paper. Based on the model, the principle of the seven-segment space vector pulse-with modulation (SVPWM) control strategy is presented. The double closed-loop control method is applied in the PWM rectifier. The rectifier can realize unity power factor by adopting the fixed switching...
Pulse power supply is widely used in areas of industrial production. A high efficiency high power power supply is badly needed in mass production. And the parameter of a power supply such as: efficiency, power volume , power factor ,and reliability is very important. In this paper a 20 kW pulse power supply is proposed, designed ,and implemented. The system is made up of two stages. First stage is...
In this work, the three-phase rectifier with a new connection is presented. The use of the Scott transformer makes a split DC-bus voltage possible and the rectifier operates with unity power factor. Using only two active switches, the rectifier is able to generate symmetrical currents in the line and a balanced split DC-bus output voltage, which is necessary in several applications. Pulse width modulation...
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.