A High voltage-gain boost converter with coupled-inductor

High step-up DC-DC converters are necessary in photovoltaic energy generation, due the low voltage of the panels source. This article propose the Doubler Output Coupled Inductor converter. This converter is based in boost converter and utilize switched capacitors and a coupled inductor to maximize the static voltage gain. The converter achieve a high voltage gain with low turns ratio in the coupled inductor and an acceptable duty cycle. Can highlight the converter utilize low number of components and have low voltage and current stresses in semiconductors. To validate and evaluate the operation of the converter a 200W prototype is simulated.

Download Full-text

High Step-Up Boost Converter with Neural Network Based MPPT Controller for a PEMFC Power Source Used in Vehicular Applications

International Journal of Emerging Electric Power Systems ◽

10.1515/ijeeps-2018-0015 ◽

2018 ◽

Vol 19 (5) ◽

Cited By ~ 2

Author(s):

K. Jyotheeswara Reddy ◽

N. Sudhakar ◽

S. Saravanan ◽

B. Chitti Babu

Keyword(s):

Neural Network ◽

Fuel Cell ◽

Electric Vehicles ◽

High Voltage ◽

Boost Converter ◽

Maximum Power ◽

Switching Frequency ◽

Voltage Gain ◽

High Voltage Gain ◽

Mppt Controller

AbstractHigh switching frequency and high voltage gain DC-DC boost converters are required for electric vehicles. In this paper, a new high step-up boost converter (HSBC) is designed for fuel cell electric vehicles (FCEV) applications. The designed converter provides the better high voltage gain compared to conventional boost converter and also reduces the input current ripples and voltage stress on power semiconductor switches. In addition to this, a neural network based maximum power point tracking (MPPT) controller is designed for the 1.26 kW proton exchange membrane fuel cell (PEMFC). Radial basis function network (RBFN) algorithm is used in the neural network controller to extract the maximum power from PEMFC at different temperature conditions. The performance analysis of the designed MPPT controller is analyzed and compared with a fuzzy logic controller (FLC) in MATLAB/Simulink environment.

Download Full-text

Obtaining Superior Efficiency with High Voltage Gain: Design and Performance Analysis of the DC-DC Boost Converter

10.1109/icsct53883.2021.9642697 ◽

2021 ◽

Author(s):

Sairatun Nesa Soheli ◽

Jahid Hasan ◽

Rukan Chandra Barman

Keyword(s):

Performance Analysis ◽

High Voltage ◽

Boost Converter ◽

Voltage Gain ◽

High Voltage Gain ◽

And Performance

Download Full-text

Modified Cascaded Z-Source High Step-Up Boost Converter

Electronics ◽

10.3390/electronics9111932 ◽

2020 ◽

Vol 9 (11) ◽

pp. 1932

Author(s):

Navid Salehi ◽

Herminio Martínez-García ◽

Guillermo Velasco-Quesada

Keyword(s):

High Voltage ◽

Boost Converter ◽

Experimental Results ◽

Input Current ◽

Voltage Gain ◽

Low Input ◽

High Voltage Gain ◽

Voltage Stress ◽

Photovoltaic Applications ◽

Current Ripple

To improve the voltage gain of step-up converters, the cascaded technique is considered as a possible solution in this paper. By considering the concept of cascading two Z-source networks in a conventional boost converter, the proposed topology takes the advantages of both impedance source and cascaded converters. By applying some modifications, the proposed converter provides high voltage gain while the voltage stress of the switch and diodes is still low. Moreover, the low input current ripple of the converter makes it absolutely appropriate for photovoltaic applications in expanding the lifetime of PV panels. After analyzing the operation principles of the proposed converter, we present the simulation and experimental results of a 100 W prototype to verify the proposed converter performance.

Download Full-text