Effective combination of quadratic boost converter with voltage multiplier cell to increase voltage gain

Abstract

This study proposes a high step-up DC-DC converter based on quadratic boost converter. The proposed converter is composed of a quadratic boost converter and a multiplier cell. The converter can be used in low power applications which need to increase output voltage with high gain. In order to reduce number of the components, the multiplier cell is composed with the quadratic boost converter in a way to share one of their inductors. The found location of the multiplier adds some advantages to the proposed converter in comparison to the similar converters. The converter advantages include higher voltage gain, lower voltage stress on diodes and capacitors and requiring smaller inductors. To verify the points, principle operation of the converter is analysed and it has been compared with other converters. The proposed converter is designed and implemented using its main equations. Experiments are done along the lines of the analysis to prove that they have good accordance with each other. Operation quality factors such as voltage stress, voltage gain, efficiency, dynamic of the converter and operation in transient conditions are investigated using the experiments.

High step‐up DC–DC converter composed of quadratic boost converter and switched capacitor

“…PM is the difference between the phase of the function and − 180° per the function gain equal to 0 dB. Referring to dynamic and control theories, PM can be used to diagnose the stability of the converter [22]. According to the results in Fig.…”

“…The compensator is set to achieve standards such as desired steady‐state error, stability and PM in a specified range. For the compensator, a general form of them as is chosen which contains an integration unit and a lead unit [22]. Based on the explained procedure, the compensator is designed to regulate the PM from 50° to 90° as follows: The designed compensator () improves PM from − 88° to 90° (Fig.…”

A High Step-up DC-DC Converter Based on the Voltage Lift Technique for Renewable Energy Applications

“…The leakage inductance o the coupled inductor is inexorable, which generates a spike in switch current and de mands clamping [13]. Several applications do not require an isolated converter; in suc cases, non-isolated DC-DC converters are preferred to achieve high voltage gains [14-16 A modified structure of the quadratic boost converter is obtained by using a switche inductor module in place of the inductor to obtain the voltage gain twice the TQBC [17,18 Additionally, the combination of different converters can give rise to new converters. A modified SEPIC converter is used to achieve higher gain by amalgamating the conven tional SEPIC with the boosting module [19].…”

“…Several applications do not require an isolated converter; in such cases, nonisolated DC-DC converters are preferred to achieve high voltage gains [14][15][16]. A modified structure of the quadratic boost converter is obtained by using a switched inductor module in place of the inductor to obtain the voltage gain twice the TQBC [17,18]. Additionally, the combination of different converters can give rise to new converters.…”

A Quadratic Boost Converter with Voltage Multiplier Cell to Increase Voltage Gain

“…Implementation of renewable energy resources like solar panels requires DC-DC converters for boosting their voltage [1][2][3][4][5]. The converters increase voltage gain and low voltage stress on the components.…”