Comparison and analysis of cascaded and Quadratic Boost Converter

Abstract

In this paper, an overall comparison between the Quadratic Boost Converter (QBC) & Cascaded Converter or Cascaded Boost Converter (CBC) is given in terms of ideal condition, as well as with the consideration of Equivalent Series Resistance (ESR) of inductor-capacitor. The differences in the voltage gain due to the individual effect of inductive and capacitive ESR is shown in this paper. The parameters of the converters are found out with a consideration of per unit ripple quantity of inductor current and capacitor voltage. It is seen that in QBC & CBC voltage gain is same but the power stress rating of the switch in prior one is more compared to the later. At the end, the simulation results of both the converters are given for a 20V/98V, 100 W output. The analysis and simulation results are presented in this paper for the verification of the feasibility.

A hybrid control strategy for quadratic boost converters with inductor currents estimation

“…There are some works in the literature, where QBC and CBC are compared. For example, Choudhury and Nayak (2015) shows that both of them can deliver a high voltage gain, but the stress in QBCs is higher, increasing the cost of these converters. Nevertheless, the switching losses for the QBC are reduced with respect to the CBC, allowing to obtain a higher efficiency.…”

Sliding-Mode Approaches to Control a Microinverter Based on a Quadratic Boost Converter

“…This is especially important, in the Z-source inverter, where the shoot-through states management complicates the converter control, and the high-stress of the switching devices reduces the efficiency. Many different two-stage microinverter topologies have been proposed in order to provide a large AC voltage (230 Vrms, 50 Hz) from a low DC supply in the range of 9 to 16 V [3][4][5].…”

“…Quadratic boost converters can provide larger gain conversion ratios at lower duty ratios, exceeding the voltage gain capabilities of the Z-source and Barbi converters, as shown in Figure 3. The efficiency analysis of four quadratic boost topologies presented in [4,13] shows that the quadratic voltage gain topology with the highest efficiency is the cascade connection of two boost converters in synchronous operation.…”

Hysteresis Controlled Quadratic Boost Converter Based AC Micro Grid System with Improved Dynamic Response

“…The parameters of the converters were discovered with a thought of per unit ripple amount of inductor current and capacitor voltage. Voltage gain is similar in QBC&CBC, but the power-stress-rating of the switch in earlier-one is more contrasted with the later [6]. "Assessment of Sic-MOSFET based QBC for PV-applications" was recommended by priya [7].…”

“…Sunlight based PV frameworks are increasing expanded consideration of academician, analysts, researchers and industrialist because of diminished expense of the sun-powered PV-material & contamination free generation of the energy [6]. "A-sun oriented-PV array encouraged single induction motor drive utilizing PWM-inverter-control" was utilized [10].…”