Trends and Challenges in Multi-Level Inverter with Reduced Switches

Srinivasan, G.; Rivera, Marco; Vijayaraja, L.; Ravikumar, Dhanasekar; Mohan, B. Guru

doi:10.3390/electronics10040368

Cited by 40 publications

(19 citation statements)

References 54 publications

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“…Half of the input DC voltage is the maximum output voltage. This problem is simply eliminated by increasing the number of components, such as switches and diodes [113,[120][121][122]. This topology, like other techniques, possesses advantages and drawbacks; one of the benefits is that the control technique is basic, and it utilizes back-to-back inverters.…”

Section: Diode-clamped Multilevel Invertermentioning

confidence: 99%

A Review on State-of-the-Art Power Converters: Bidirectional, Resonant, Multilevel Converters and Their Derivatives

et al. 2021

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With the rapid development of modern energy applications such as renewable energy, PV systems, electric vehicles, and smart grids, DC-DC converters have become the key component to meet strict industrial demands. More advanced converters are effective in minimizing switching losses and providing an efficient energy conversion; nonetheless, the main challenge is to provide a single converter that has all the required features to deliver efficient energy for different types of modern energy systems and energy storage system integrations. This paper reviews multilevel, bidirectional, and resonant converters with respect to their constructions, classifications, merits, demerits, combined topologies, applications, and challenges; practical recommendations were also made to deliver clear ideas of the recent challenges and limited capabilities of these three converters to guide society on improving and providing a new, efficient, and economic converter that meets the strict demands of modern energy system integrations. The needs of other industrial applications, as well as the number of used elements for size and weight reduction, were also considered to achieve a power circuit that can effectively address the identified limitations. In brief, integrated bidirectional resonant DC-DC converters and multilevel inverters are expected to be well suited and highly demanded in various applications in the near future. Due to their highlighted merits, more studies are necessary for achieving a perfect level of reducing losses and components.

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Section: Diode-clamped Multilevel Invertermentioning

confidence: 99%

A Review on State-of-the-Art Power Converters: Bidirectional, Resonant, Multilevel Converters and Their Derivatives

et al. 2021

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“…To overcome these issues, researchers have proposed a self-balanced switched-capacitor multilevel inverter (SCMLI), which can synthesize the desired voltage levels at the output using fewer components and reduced control complexity [6][7][8][9][10][11][12]. Several SCMLIs has been presented by researchers utilizing fewer components to realize the desired multilevel output voltage.…”

Section: Introductionmentioning

confidence: 99%

“…To reduce the number of switches, the authors in [19] used 19 switches for generating voltage boosting of six, but the TSV of the inverter circuit increased to 39. A detailed review on the recently published multilevel inverter topologies to find the most suitable applications with reduced device count is published in [7][8][9][10][11][12]. In the case of lower solar PV voltages, a high gain DC-DC converter along with multilevel inverter can be used to boost the PV voltage for obtaining desired output voltage for grid integration [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

A Single Source Switched-Capacitor 13-Level Inverter with Triple Voltage Boosting and Reduced Component Count

et al. 2021

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A new triple voltage boosting switched-capacitor multilevel inverter (SCMLI) is presented in this paper. It can produce 13-level output voltage waveform by utilizing 12 switches, three diodes, three capacitors, and one DC source. The capacitor voltages are self-balanced as all the three capacitors present in the circuit are connected across the DC source to charge it to the desired voltage level for several instants in one fundamental cycle. A detailed comparative analysis is carried to show the advantages of the proposed topology in terms of the number of switches, number of capacitors, number of sources, total standing voltage (TSV), and boosting of the converter with the recently published 13-level topologies. The nearest level control (NLC)-based algorithm is used for generating switching signals for the IGBTs present in the circuit. The TSV of the proposed converter is 22. Experimental results are obtained for different loading conditions by using a laboratory hardware prototype to validate the simulation results. The efficiency of the proposed inverter is 97.2% for a 200 watt load.

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“…In the later stage, the high voltage and high‐power applications have induced the researchers towards the development of multilevel inverters. The multilevel inverter concept was developed almost three decades before 1 . The multilevel inverter has the advantages of high voltage, low harmonic profile, high output power, and low electromagnetic interference (EMI).…”

Section: Introductionmentioning

confidence: 99%

A novel control topology for grid‐integration with modular multilevel inverter

Vanaja¹,

Stonier²,

Moghassemi

2021

Int Trans Electr Energ Syst

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Summary This paper presents a novel control topology for a multilevel inverter with reduced number of power switches for achieving an increased number of levels in output voltage along with improved power quality. The diode clamped multilevel inverter configuration is modified and the gating signals are generated using selective harmonic optimization technique at fundamental frequency using Satin Bower Bird optimization (SBO). It enhances the quality of output voltage waveform with the reduction in total harmonic distortion (THD), less switching power losses, and better efficiency. The inverter is investigated for its competent operation capability on grid‐tied applications. Detailed simulation is conducted and results are presented for various load conditions. To validate the inverter operation, an experimental setup of the modified diode clamped modular inverter (MDCMI) interfacing the grid is presented. The loss analysis is carried out at the inverter and converter segments. Based on the analysis, the proposed control topology demonstrates the reliable and efficient operation of the modular inverter. From the results obtained it is evident that the proposed inverter design suits superlative for the grid applications.

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Trends and Challenges in Multi-Level Inverter with Reduced Switches

Cited by 40 publications

References 54 publications

A Review on State-of-the-Art Power Converters: Bidirectional, Resonant, Multilevel Converters and Their Derivatives

A Review on State-of-the-Art Power Converters: Bidirectional, Resonant, Multilevel Converters and Their Derivatives

A Single Source Switched-Capacitor 13-Level Inverter with Triple Voltage Boosting and Reduced Component Count

A novel control topology for grid‐integration with modular multilevel inverter

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