A New Family of Step-Up Hybrid Switched-Capacitor Integrated Multilevel Inverter Topologies With Dual Input Voltage Sources

Iqbal, Atif; Siddique, Marif Daula; Reddy, B. Prathap; Maroti, Pandav Kiran; Alammari, Rashid

doi:10.1109/access.2020.3046192

Cited by 52 publications

(19 citation statements)

References 30 publications

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“…By summing (17), (18), the TBV of developed topology (T BV DT ) corresponds to the number of levels is obtained as follows:…”

Section: Proposed Modular Multicell Inverter Topologies a Proposed De...mentioning

confidence: 99%

“…Several switched-capacitor MLI structures have been proposed to boost input voltage and remove the H-bridge module in order to decrease the voltage stress of the switches, [14]- [18]. [14]- [17] generate 13 voltage levels using two DC sources, whereas [18] uses a single DC source. Although [18] requires a low DC source count, it uses a high number of power switches, which makes this topology have high power losses.…”

Section: Introductionmentioning

confidence: 99%

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An Asymmetric Switched-Capacitor Multicell Inverter With Low Number of DC Source and Voltage Stress for Renewable Energy Sources

et al. 2022

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Asymmetric multilevel inverters generate high-quality output voltage using the same number of components as symmetric multilevel inverters. The main drawback of these topologies is that they require a large number of DC voltage sources, and the power switches have to endure high voltage stress. In this paper, a sub-module inverter topology is proposed to reduce the number of DC voltage sources and voltage stress on the switches of asymmetric multilevel inverters. The proposed sub-module inverter is able to generate fifteen voltage levels by using two DC power supplies and a capacitor. The voltage of the capacitor can be automatically charged at half of the input DC power supply without the need for any sensors. In addition, the capacitor charging operation does not produce any inrush current because it is charged by the direction of the output current, so it has an advantage over switch capacitor multilevel inverters. A modular topology is also presented based on the proposed sub-module inverter to achieve high voltage levels while reducing the number of elements. A comprehensive comparison between the proposal and other multilevel inverter topologies is performed to approve the proposed inverter design. In addition, thermal and loss distribution simulation of the proposed sub-module inverter is performed. Finally, the performance, efficiency, and accuracy of the proposed inverter are confirmed through laboratory prototyping.INDEX TERMS DC-AC power converters; multilevel inverter, switched capacitor circuit.

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“…By summing (17), (18), the TBV of developed topology (T BV DT ) corresponds to the number of levels is obtained as follows:…”

Section: Proposed Modular Multicell Inverter Topologies a Proposed De...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Asymmetric Switched-Capacitor Multicell Inverter With Low Number of DC Source and Voltage Stress for Renewable Energy Sources

et al. 2022

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“…Equations (12) illustrates the large-signal model; it is a nonlinear system model because it contains the product (i s .ω s ), (i c .ω s ), (V cs .ω s ), and (V cc .ω s ), where ω s , i s , i c , V cs and V cc are independent variables. It isn't easy to use the largesignal model to design the control system.…”

Section: Construction Of Large Signal Modelmentioning

confidence: 99%

“…Emerging MLIs topologies have been proposed to overcome the conventional inverters' problems and achieve high efficiency with high power quality [7]- [9]. Recently decade, many hybrid topologies of the converter are discussed to produce a balanced and unbalanced system with self-voltage balancing, such as the fewer number of switches [10], the quadruple boost inverter [11], and dual input switched-capacitor SC-MLI [12]. Thanks to the development of digital control using super calculators, DSP, and embedded boards, the fundamental-switching modulation techniques provide their efficiency in many applications [13].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Small Signal Modeling of Five-Level Series Resonant Inverter

et al. 2021

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This paper explains the implementation of a small-signal model for a new five-level series resonant inverter structure. The proposed circuit combines the advantages of multilevel inverters and the characteristics of the physical phenomena, resonance. The small-signal model offers the possibility to design a linearized linear time-invariant (LTI) model around an equilibrium point based on first order Taylor series. After that, the performance of the proposed five-level series resonant inverter and its smallsignal model are evaluated in MATLAB/Simulink environment. Compared with a MATLAB model generated using the system identification toolbox, the developed small-signal model exhibited a good accuracy in frequency and time domains. In addition, a hardware test bench is developed to validate the proposed model. Both simulation and experimental results shows that the proposed multilevel resonant inverter is very interesting for high-voltage high-frequency applications. As a perspective, from the results obtained, we suggest the use of small-signal AC analysis for multilevel series resonant inverter modeling. The paper contains rich information of the recently used tools for dynamic systems modeling and analysis of nonlinear processes that can be applied for the modeling and analysis of other power electronics inverters.INDEX TERMS AC analysis of dynamic nonlinear system, five-level series resonant inverter, inverter mathematical model, multilevel inverter simulation, model of inverter, small-signal modeling.

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“…This controller is used to balancing the two capacitors voltage with the associated control logic. The [23] focuses on a new family of step-up multilevel inverter topologies with switched capacitor integration with dual input voltage sources using passive elements. In [24], proposed the 5-Level boost inverter topology, It consists of eight switches, one SC unit, and one input voltage source.…”

mentioning

confidence: 99%

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

Muralikumar

Ponnambalam

2021

IEEE Access

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The modified topology for an asymmetrical 31-level cascaded inverter is analyzed with less number of DC voltage sources, power diodes, and power electronic knobs. The Super Imposed Carrier Pulse Width Modulation (SIC-PWM) is proposed for a 31-level asymmetrical modified cascaded inverter topology to reduce the Total Harmonic Distortions (THD). The Fuzzy logic controller (FLC) and Adaptive Neuro-Fuzzy Inference System (ANFIS) are suggested for a 31-level asymmetrical modified cascaded inverter topology to control the root mean square (RMS) voltage. These controllers help in maintaining the output voltage constant even when there is a change in input voltage to the inverter. This study aims to compare Fuzzy logic and ANFIS controllers by applying them to the 31-level cascaded inverter. Using both the controllers the inverter is controlled and its performance is compared using a step response tool in MATLAB. The study of the proposed modified 31-level Asymmetrical cascaded inverter is carried out to evaluate the THD without and with Fuzzy logic and ANFIS controller. Using the step response tool, Settling Time, Overshoot, RMS Voltage values, Peak Time, Peak value, and Rise Time were evaluated and compared for Fuzzy and ANFIS controlled 31-level asymmetrical cascaded inverter. The THD value for without a controller is 4.97%, with the fuzzy logic controller is 4.15% and with ANFIS controller is 3.77%. In both MatLab and real-time simulation, total harmonic distortion (THD) is observed to be the almost same and is lower than 5% which is under IEEE standards. The performance of Fuzzy and ANFIS controlled 31-level asymmetrical cascaded inverter is evaluated and compared with the use of MATLAB/Simulink and the same is done with Real-Time simulation using OPAL-RT 5700.

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A New Family of Step-Up Hybrid Switched-Capacitor Integrated Multilevel Inverter Topologies With Dual Input Voltage Sources

Cited by 52 publications

References 30 publications

An Asymmetric Switched-Capacitor Multicell Inverter With Low Number of DC Source and Voltage Stress for Renewable Energy Sources

An Asymmetric Switched-Capacitor Multicell Inverter With Low Number of DC Source and Voltage Stress for Renewable Energy Sources

Analysis and Small Signal Modeling of Five-Level Series Resonant Inverter

Comparison of Fuzzy and ANFIS Controllers for Asymmetrical 31-Level Cascaded Inverter With Super Imposed Carrier PWM Technique

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