A Novel DC Bus Voltage Sensorless PFC Rectifier with Improved Voltage Dynamics
نویسندگان
چکیده
A novel DC bus voltage estimation algorithm with inherent cancellation of feedback voltage ripple is presented in this work. Design issues are discussed and simulation results are presented. Apart from reduction of output voltage sensor, the proposed estimation algorithm also eliminates twice the line frequency ripple from the feedback path allowing a voltage controller bandwidth comparable to line frequency, suitable for most front-end Power Factor Corrected (PFC) Converter applications.
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تحلیل و طراحی روش کنترل پیش بین برای یکسو کننده دارای اصلاح ضریب توان با مبدل ارتقاء یافتهء شپارد- تیلور
In this paper CCM/CVM operation and modeling of the improved Sheppard-Taylor based power factor correction (PFC) rectifier is presented and a predictive control strategy is introduced for this rectifier. Compared with conventional boost or buck–boost PFC’s, this topology allows a better current tracking at the AC side, with a relatively reduced voltage at the DC side. Consequently, ...
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