A High Step-Up Cost Effective DC-to-DC Topology Based on Three-Winding Coupled-Inductor

Abstract

Owing to the low voltage level that renewable energy sources like solar panels frequently provide, and limited capability of simple Boost converter, need for high gain step-up dc to dc converters are increased. In this work a single switch high step-up dc to dc topology with high efficiency is developed. To obtain high voltage gain, the described step-up dc to dc topology employs three windings coupled inductor and voltage multiplier cell method. To get the high voltage gain, this innovative converter does not require to work at a high duty cycle state by increasing the turns ratio of the coupled inductor. The suggested converter's working modes and theoretical model are investigated, and lastly, a prototype setup is used to verify the theoretical and simulation analyses' correctness.

Efficiency and dynamic characteristics of improved dual‐stage power converter setup with advanced model predictive controller for electric vehicle battery charging

“…Additionally, capacitors C Z0 are also charged in this mode. If Equation ( 8) applies, then I S can be defined as Equations ( 9) and (10).…”

“…To decrease the costs and augment the efficiencies of interleaved boosting‐type converters, this paper 9 suggests a converter utilizing one auxiliary inductor as an alternative to the coupled inductor. The power MOSFETs were soft‐switching ON, and the diodes were operating at nil currents, which eliminated the reversing recovery issues 10 . The series inductance of the phase shifting bridge converters does not require to be popularly calculated, and the duty cycle loss could be reduced 11 …”

“…The power MOS-FETs were soft-switching ON, and the diodes were operating at nil currents, which eliminated the reversing recovery issues. 10 The series inductance of the phase shifting bridge converters does not require to be popularly calculated, and the duty cycle loss could be reduced. 11 A new PSFB PWM converter was developed 12,13 to enhance switching performance and reduce the output current ripples.…”