Title :
A predictive control strategy for the Sheppard-Taylor based PFC rectifier
Author :
Abedi, M.R. ; Sahari, Ali A. ; Tahami, F.
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran
Abstract :
This paper investigates a predictive control strategy for a single-phase PFC rectifier exploiting the Sheppard-Taylor converter. By using this converter, the detuning problem occurring in conventional PFC rectifiers, especially at low input voltages, is avoided. This paper addresses a predictive method for designing the current controller of the Sheppard-Taylor PFC converter. The control law is derived for an ideal circuit as well as a more accurate model of the converter including parasitic elements. Input voltage feed-forward compensation provides sinusoidal input current and a desired output voltage even if the input voltage is distorted. To investigate the dynamic performance of the PFC rectifier, the small-signal model and transfer functions are derived finally.
Keywords :
electric current control; power convertors; power factor correction; predictive control; rectifying circuits; transfer functions; PFC rectifier; Sheppard-Taylor converter; control law; current controller; input voltage feed-forward compensation; low input voltages; power factor correction rectifier; predictive control strategy; sinusoidal input current; transfer functions; Circuits; Digital control; Power factor correction; Power system modeling; Predictive control; Rectifiers; Switches; Switching frequency; Transfer functions; Voltage; Correction (PFC); Power Factor; Predictive Control; Sheppard-Taylor Convertor;
Conference_Titel :
Power and Energy Conference, 2008. PECon 2008. IEEE 2nd International
Conference_Location :
Johor Bahru
Print_ISBN :
978-1-4244-2404-7
Electronic_ISBN :
978-1-4244-2405-4
DOI :
10.1109/PECON.2008.4762640
