scholarly journals DC/DC Boost Converter Controller

2018 ◽  
Vol 3 (3) ◽  
pp. 53-59 ◽  
Author(s):  
José Ferreira

The DC/DC boost converter is described as a time variant system. State-Space is one of the methods used to approach a time variant system to an invariant time linear system. The present document focuses on a comparative approach of output voltage regulation and system stability and performance. For this document, there were made MatLab tests of PI and PD controllers, with and without fuzzy control.

Author(s):  
Dega Rajaji Vanka ◽  
K. Chandra Sekhar

<p><strong> </strong></p>Generally the switch mode power supply input voltage source is constant or shows insignificant little varieties.in any case, when fuel call used input source the last assumption is not valid. A fuel cell stack is give a details of low and not controlled DC output voltage, moreover, when the demanded current increases the output voltage becomes low in a nonlinear form; from now on, suitable controller is required to taken the previously mentioned issues. In this article, a normal current-mode controller is planned to using a joined model for an energy unit stack and a boost converter; besides, the resolving control method increasing the system stability and output voltage regulation.. The proposed energy system utilizes an energy component power (polymer electrolyte film fuel cell) and a boost converter passing on power of 900 W. the proposed controller execution for output voltage regulation by means of closed loop gain estimations and step load changes. What's more, a correlation amongst open-and closed- loop estimations is made, where the controller robustness is tried for vast load varieties and fuel cell stack output voltage changes are shows on simulation results.


2019 ◽  
Vol 34 (11) ◽  
pp. 10381-10385 ◽  
Author(s):  
Blanca Areli Martinez-Trevino ◽  
Abdelali El Aroudi ◽  
Angel Cid-Pastor ◽  
Luis Martinez-Salamero

2021 ◽  
Vol 36 (2) ◽  
pp. 2143-2153
Author(s):  
Blanca Areli Martinez-Trevino ◽  
Abdelali El Aroudi ◽  
Hugo Valderrama-Blavi ◽  
Angel Cid-Pastor ◽  
Enric Vidal-Idiarte ◽  
...  

2018 ◽  
Vol 7 (2.8) ◽  
pp. 255
Author(s):  
Prakhar Sharma ◽  
Pankaj Kumar ◽  
Himanshu Sharma ◽  
Nitai Pal

Deployment of renewable energy resources on distributed energy system has reduced the reliance and transmission losses from the utility grid. It also helps to improve the system stability near the load center. Solar and wind are the two highly utilized green energy resources in present scenario. However, the fluctuations of solar irradiation, temperature, wind velocity are the preeminent issue for this type of systems which affects the efficiency  of the solar and wind energy system. It requires the interfacing unit to stabilize the output voltage. The proposed work deals with the close loop boost converter with PID controller, which is used to attain a stabilized voltage despite of parameter changes and load disturbances. Designed system will help to analyze the better stable output voltage with efficient system having minimum fluctuation.


This paper presents a closed loop control of an active-clamped full-wave quasi-resonant boost converter with zero-current-switching (ZCS) for power factor correction. Possibility to incorporate higherswitching frequency and has some potency to reduce switching losses. Power factor improvement and high efficiency is achieved with a constant output voltage and DC output voltage is regulated by using closed loop control .The concept of the proposed switchingscheme results lesser switching loss, higher efficiency, possibility to have higher switching frequency, and has potential to reduce converter's conducted EMI. This paper also presents voltage regulation using closed loop system and the simulation results are verified.


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