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.
In this paper a novel modulation technique for a three phase buck rectifier is presented and analyzed. The proposed control technique compared to the conventional control techniques exhibits a higher true power factor while providing an equivalent dynamic response. The dynamic performance of the proposed control technique is checked experimentally in a d.c. motor drive system and the results are compared to those of the classical current space vector technique. The experimental validation illustrates that the technique introduced improves significantly the input line current THD factor and achieves a greater power factor with respect to the conventional method even in cases involving important motor torque variations.