A high step-up half-bridge DC/DC converter with a special coupled inductor for input current ripple cancelation and extended voltage doubler circuit for power conditioning of fuel cell systems

2015 ◽  
Vol 44 (6) ◽  
pp. 1290-1307 ◽  
Author(s):  
Hadi Moradisizkoohi ◽  
Jafar Milimonfared ◽  
Meghdad Taheri ◽  
Sina Salehi
Keyword(s):  
Fuel Cell ◽  
Input Current ◽  
Power Conditioning ◽  
Cell Systems ◽  
Voltage Doubler ◽  
Current Ripple

High-Efficiency Fuel Cell Power Conditioning System With Input Current Ripple Reduction

2009 ◽  
Vol 56 (3) ◽  
pp. 826-834 ◽  
Author(s):  
Jung-Min Kwon ◽  
Eung-Ho Kim ◽  
Bong-Hwan Kwon ◽  
Kwang-Hee Nam
Keyword(s):  
Fuel Cell ◽  
High Efficiency ◽  
Input Current ◽  
Power Conditioning ◽  
Ripple Reduction ◽  
Current Ripple

scholarly journals Optimal Operation of the Voltage-Doubler Boost Converter through an Evolutionary Algorithm

Mathematics ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 423
Author(s):  
Cesar Ibarra-Nuño ◽  
Alma Rodríguez ◽  
Avelina Alejo-Reyes ◽  
Erik Cuevas ◽  
Juan M. Ramirez ◽  
...  
Keyword(s):  
Evolutionary Algorithm ◽  
Numerical Optimization ◽  
Boost Converter ◽  
Optimal Operation ◽  
Input Current ◽  
Voltage Gain ◽  
Duty Cycles ◽  
Switching Functions ◽  
Voltage Doubler ◽  
Current Ripple

This manuscript presents the numerical optimization (through a mathematical model and an evolutionary algorithm) of the voltage-doubler boost converter, also called the series-capacitor boost converter. The circuit is driven by two transistors, each of them activated according to a switching signal. In the former operation, switching signals have an algebraic dependence from each other. This article proposes a new method to operate the converter. The proposed process reduces the input current ripple without changing any converter model parameter, only the driving signals. In the proposed operation, switching signals of transistors are independent of each other, providing an extra degree of freedom, but on the other hand, this produces an infinite number of possible combinations of duty cycles (the main parameter of switching signals) to achieve the desired voltage gain. In other words, this leads to a problem with infinite possible solutions. The proposed method utilizes an evolutionary algorithm to determine the switching functions and, at the same time, to minimize the input current ripple of the converter. A comparison made between the former and the proposed operation shows that the proposed process achieves a lower input current ripple while achieving the desired voltage gain.

Sign in / Sign up

Export Citation Format

Share Document