Design and Implementation of Asymmetrical Multilevel Inverter With Reduced Components and Low Voltage Stress

Khasim, Shaik Reddi; Dhanamjayulu, C.

doi:10.1109/access.2022.3140354

Cited by 24 publications

(17 citation statements)

References 46 publications

(47 reference statements)

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“…Many distinct models can be created because of the given converter's operating states that use different combinations of the input sources to create either buck, boost, or buck-boost outputs at the same time. Element components (I, d, V) and perturbations are used to construct the state variables in equation (8) Perturbations are thought to fluctuate modestly during a single switching phase. Replace the state parameters with the sum of steady-state and perturbation values to create the following restrictions:…”

Section: Dynamic Modellingmentioning

confidence: 99%

“…In addition to the high-frequency transformer, isolated dc-dc converters often comprise power converters. To maintain the efficient power transfer from both ports of the converter, the transformer phase shift among the primary and secondary voltage constraints has been changed [8][9][10]. ese include various types of the converters such as half-bridge converters, full-bridge converters, and combinational multiport converters [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Implementation of a Multiport Dual Input-Dual Output Converter for Electric Vehicle Applications

Khasim

Dhanamjayulu

2022

International Transactions on Electrical Energy Systems

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In recent years, multiport DC-DC converters are seen in a variety of power converter applications in electric vehicles. The design of multiport converter architectures plays a major role in DC microgrids and electric vehicle applications. This research examines a modified multiport converter structure interface with dual inputs and dual outputs used in electric vehicles. The versatility of accommodating energy sources with varying voltage and current nature characteristics is the most notable feature of this converter. During operation, the proposed architecture can offer a boost as well as buck operations at the same time. The suggested dual input-dual output (DIDO) converter is built with fewer components and a simpler control technique which makes it more dependable and the converter is cost-effective. Furthermore, this structure allows the power to flow in both directions making it to be utilized in electric vehicle battery charging during regenerative braking. The converter’s steady-state and dynamic behavior are investigated, and a control strategy for regulating the power flow among the varied input energies is proposed. To develop the suggested converter, a small-signal model is modeled. MATLAB simulation and experimental findings are used for the verification of converter design and validated the performance behavior experimentally using a hardware setup.

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Section: Dynamic Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Implementation of a Multiport Dual Input-Dual Output Converter for Electric Vehicle Applications

Khasim

Dhanamjayulu

2022

International Transactions on Electrical Energy Systems

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“…Drawing inspiration from early research, the article outlines a novel 7-level inverter based on a decreased number of parts, with a series of connected dc sources of binary sequence to achieve maximum capacity from dc sources by an appropriate organization of switches [17]. Symmetrical and asymmetrical MLI with lower switch count and dc sources are presented in [18][19][20][21]. However, these topologies need auxiliary circuits to generate negative levels.…”

Section: Introductionmentioning

confidence: 99%

“…(2) It does not require any supplementary H-bridge unit to make negative polarity levels. erefore, the redesign overcomes the restriction on high-voltage applications due to high-voltage stress on H-bridge switches [21]. (3) Reduction in blocking voltage on switches, a diversity of switches, and heat sinks.…”

Section: Introductionmentioning

confidence: 99%

A Modified Seven-Level Inverter with Inverted Sine Wave Carrier for PWM Control

Vijayakumar¹,

Stonier²,

Peter³

et al. 2022

International Transactions on Electrical Energy Systems

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The conventional multilevel inverter necessitates more active switching devices and high dc-link voltages. To minimalize the employment of switching devices and dc-link voltages, a novel topology has been proposed. In this paper, a novel minimum switch multilevel inverter is established using six switches and two dc-link voltages in the proportion of 1 : 2. In addition, the proposed topology is proficient in making seven-level voltages by appropriate gate signals. The PWM signals were produced using several inverted sine carriers and a single trapezoidal reference. When compared to other existing inverters, this configuration needs fewer components, as well as fewer gate drives. Furthermore, this module can generate a negative level without the use of a supplementary circuit such as an H-Bridge. As a result, overall cost and complexity are greatly reduced. The proposed minimum switch multilevel inverter operation is validated through simulations followed by experimental results of a prototype.

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“…A fifteen-level inverter is proposed in [20] which utilizes only twelve switches for generating the desired voltage levels in the output voltage. A 33-level inverter topology is presented in [21] which utilizes only sixteen switches for producing the desired voltage levels. The higher voltage levels improve the power quality of the output voltage form hence can be used for grid connected operation.…”

Section: Introductionmentioning

confidence: 99%

Grid‐connected operation and control of single‐phase asymmetrical multilevel inverter for distributed power generation

Tayyab

Sarwar

Murshid

et al. 2022

IET Renewable Power Gen

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In recent times, multilevel inverters (MLIs) are gaining popularity for grid integration of distributed power generation sources. In this paper, a proportional‐resonant (PR) controller based on current control logic is proposed for a single‐phase eleven‐level inverter topology, enabling the integration of distributed power generation sources into the grid. The presented topology utilizes eight two‐quadrant switches and three dc sources to produce an eleven‐level output voltage. The level‐shifted pulse width modulation (LS‐PWM) scheme is used for providing switching signals to the inverter under grid‐connected operation. Simulation and real‐time results are presented for the eleven‐level inverter to validate the presented current control logic under the grid‐connected mode of operation. The hardware‐in‐loop emulator (Typhoon HIL‐402) is used for taking real‐time results of the presented grid‐connected topology. The total harmonic distortion (THD) of the eleven‐level inverter voltage and grid current is 12.10% and 0.46%, respectively. The efficiency of the inverter while supplying 2 kW active power to the grid is 98.4%.

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Design and Implementation of Asymmetrical Multilevel Inverter With Reduced Components and Low Voltage Stress

Abstract: Date of publication xxxx 00, 0000, date of current version xxxx 00, 0000.

Cited by 24 publications

References 46 publications

Synthesis and Implementation of a Multiport Dual Input-Dual Output Converter for Electric Vehicle Applications

Synthesis and Implementation of a Multiport Dual Input-Dual Output Converter for Electric Vehicle Applications

A Modified Seven-Level Inverter with Inverted Sine Wave Carrier for PWM Control

Grid‐connected operation and control of single‐phase asymmetrical multilevel inverter for distributed power generation

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