DC–DC SIDO converter with low‐voltage stress on switches: analysis of operating modes and design considerations

Pahlavani, Mohammad Reza Alizadeh; Asl, Elias Shokati

doi:10.1049/iet-pel.2018.6184

Cited by 9 publications

(4 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Single input multiport output is a good way of getting different output voltage using a single input. These converters have better voltage regulation capability and low stress across the output capacitor as compared to single input [19], [20] single-output (SISO) converter. They can be used as individual SISO converters.…”

Section: Introductionmentioning

confidence: 99%

A New Transformerless Ultra High Gain DC–DC Converter for DC Microgrid Application

Khan

Zaid²,

Mahmood

et al. 2021

IEEE Access

View full text Add to dashboard Cite

High gain dc-dc converters are used in several applications which include solar photovoltaic system, switch-mode power supplies and fuel cells. In this paper, an ultra-high gain dc-dc boost converter is proposed and analysed in detail. The converter has a gain of six times as compared with the boost converter. The high gain is achieved by utilizing switched inductors and switched capacitors. A modified voltage multiplier cell (VMC) with switched inductors is proposed. The converter has a single switch which makes its operation easy. Moreover, the voltage across the switch, diodes and capacitors are less than the output voltage which increases the overall efficiency of the converter. The converter performance in steady-state is analysed in detail and it is compared with other latest high gain converters. The working of the converter in non-ideal conditions is also discussed in detail. The loss analysis is done using PLECS software by incorporating the real models of switches and diodes from the datasheet. To confirm and validate the working of the proposed converter a hardware prototype of 200 W is developed in the laboratory. The converter achieves high gain at low duty ratios and its performance is found to be good in open and closed loop conditions. INDEX TERMSBoost Converter, DC Microgrid, Duty cycle, Ultra High Gain, Voltage stress Battery Fuel Cell High Gain DC-DC Converter Solar PV Cell Low DC Voltage (12-60V) High DC Voltage (200 -300V

show abstract

Section: Introductionmentioning

confidence: 99%

A New Transformerless Ultra High Gain DC–DC Converter for DC Microgrid Application

Khan

Zaid²,

Mahmood

et al. 2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…In the renewable energy systems, it is important to interface different levels of input and output DC voltages. As a result, dual‐input, single‐output (DISO) converters in [4–7] and single‐input, dual‐output (SIDO) converters in [8–11, 13–20] and single‐input, three‐output converter in [12] are presented. Multi‐input converters are needed to be used in hybrid energy sources [4–7].…”

Section: Introductionmentioning

confidence: 99%

“…In some cases, high voltage conversion ratio is achieved by applying coupled inductors, then the output voltages can be more extended by increasing the turns ratio of the coupled inductors [14–16]. In the case of multi‐port DC–DC converters, similar to other DC–DC converters, having the low voltage stress on the semiconductor components leads to have low losses [8, 9, 12–16]. In the multi‐output converters, the critical issue is to achieve the suitable precision of the output voltage regulations for all the output ports simultaneously under the variations of the input voltage level or output load.…”

Section: Introductionmentioning

confidence: 99%

SIDO coupled inductor‐based high voltage conversion ratio DC–DC converter with three operations

Saadatizadeh

Heris

Babaei

et al. 2021

IET Power Electronics

View full text Add to dashboard Cite

Here, a single-input, dual output (SIDO) coupled inductor-based high voltage conversion ratio DC-DC converter is proposed. The proposed converter has the capability of operating as a SIDO converter in a way that the terminal of the input voltage source is exchangeable among the three ports. Therefore, there are three different operation modes for the proposed converter. The voltage conversion ratios of the high voltage ports over the low voltage port can be improved by increasing the turn ratio of the coupled inductors. The main advantage of the proposed converter is achieving high voltage gains with lower number of components for the whole range of duty cycles comparing to the conventional multi-port high voltage gain converters. Moreover, two output voltages of the proposed converter can be simultaneously regulated on different constant levels with a good precision. In this study, the voltage conversion ratios, the inductors' average currents, the voltage and current stress on the switches are calculated theoretically. Finally, an experimental prototype of 30 V input and 410, 260 V outputs with the power 510 W is implemented and the results are verifying the theoretical ones.

show abstract

“…In addition, to provide a high step‐up conversion ratio, the duty cycle of the conventional boost converter should be set on high values, which leads to small turn‐off periods of power switches, large input current ripples, and high switching losses [3]. Various topologies are introduced for improving system operation and high step‐up conversion for both isolated [4–8] and non‐isolated [9–15] converters. To avoid the extreme duty cycle, some isolated converters such as push–pull, fly‐back, and forward can obtain a high step‐up voltage gain by adjusting the turns ratio of a transformer [16–18].…”

Section: Introductionmentioning

confidence: 99%

High step‐up DC–DC converter based on coupled‐inductor for renewable energy systems

Sadighi

Afjei

Salemnia

2020

IET power electron.

View full text Add to dashboard Cite

The present study introduced a novel soft‐switched high step‐up DC–DC converter based on coupled inductors. The higher boost‐factor is achieved relying on previous topologies by adjusting the turns ratio of the coupled inductors. Thus, the proposed converter provides a higher voltage gain with lower duty ratios. Two active clamp circuits are employed to clamp the voltage spikes resulted from parasitic inductances. This active clamp circuit provides zero‐voltage switching turn‐on operations and zero‐current switching turn on/off operations for active switches and power diodes, respectively. In addition, the equivalent leakage inductance of the coupled inductors is placed in series with the power diodes, which significantly alleviates the reverse‐recovery problem of diodes. The other features of the proposed topology include fewer components, low cost, small input current ripple, and the low voltage stress on power switches. Low voltage stress allows choosing a lower voltage rating metal–oxide–semiconductor field‐effect transistor, which directly reduces the cost. The experimental results evaluated the performance of the proposed topology. For this purpose, a 48 V/380 V/500 W laboratory prototype was built and tested, and the results confirmed the performance of the presented converter.

show abstract

DC–DC SIDO converter with low‐voltage stress on switches: analysis of operating modes and design considerations

Cited by 9 publications

References 40 publications

A New Transformerless Ultra High Gain DC–DC Converter for DC Microgrid Application

A New Transformerless Ultra High Gain DC–DC Converter for DC Microgrid Application

SIDO coupled inductor‐based high voltage conversion ratio DC–DC converter with three operations

High step‐up DC–DC converter based on coupled‐inductor for renewable energy systems

Contact Info

Product

Resources

About