Evaluation of Impedance network Based 7-Level Switched Capacitor Multi Level Inverter for Single Phase Grid Integrated System

Matam, Manjunatha Budagavi; Venkata, Ashok Kumar Devarasetty; Mallapu, Vijaya Kumar

doi:10.1007/s40031-018-0348-2

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…Generally it depends on multiplication factor and fundamental frequency. The frequency value of the carrier is measured by: E = F ) × E ) (12) where E denotes carrier frequency (Hz), F ) denotes the multiplication factor, with an odd value more than 11, and E ) denotes the fundamental frequency value (Hz). The modulation index of the pulse-width modulation scheme is:…”

Section: A the Multi-carrier Level-shifted Pwm (Lspwm) Schemementioning

confidence: 99%

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An Enhanced Z-Source Switched MLI Capacitor for Integrated Micro-Grid with Advanced Switching Pattern Scheme

Bm¹,

Rao

Kumar³

et al. 2022

Eng. Technol. Appl. Sci. Res.

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In this paper, the Enhanced Z-Source Switched Capacitor Multi-Level Inverter (EZSC-MLI) is presented, which can generate a greater number of levels and magnitude in output. The proposed MLI has greater recognition due to its low harmonic profile, fewer switching components, compact size, low switch stress, isolated DC supply, high efficiency, and low cost. A high voltage boost factor is achieved by using the Z-Source. The Switched Capacitor module is used for charging all the capacitors to equal voltage magnitude based on a self-balanced scheme. The proposed topology for grid integration requires dual control loops, a primary voltage control loop, and a secondary current control loop. The performance of the proposed 7-level topology for grid integrated systems is verified with multi-carrier advanced modulation schemes and by simulations carried out in Matlab/Simulink.

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Section: A the Multi-carrier Level-shifted Pwm (Lspwm) Schemementioning

confidence: 99%

“…The suitable approach to limit the DC power supplies is to utilize the capacitors. Yet, additional charge balance strategy is used to intercept the discharging issues [11][12][13]. Generally, MLI topologies are governed by both fundamental and high switching frequency modulation schemes [14].…”

Section: Introductionmentioning

confidence: 99%

An Enhanced Z-Source Switched MLI Capacitor for Integrated Micro-Grid with Advanced Switching Pattern Scheme

Bm¹,

Rao

Kumar³

et al. 2022

Eng. Technol. Appl. Sci. Res.

Self Cite

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Simulation and analysis of a grid integrated distribution system based on LMS algorithm for hybrid types of load

Ahmad¹,

Kirmani

2021

Int J Syst Assur Eng Manag

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An assessment of advanced DC-link based reversing voltage type multilevel inverter topologies

Rao

Manjunatha²,

Kumar³

et al. 2023

IRASE

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In this paper, advanced DC-Link (DCL) based reversing voltage type Multilevel Inverter (MLI) topologies by compensating the difficulties in the conventional MLIs are reviewed. These topologies consist of less switching components and driver circuits when compared with conventional MLIs predominantly in higher levels. Consequently, installation area, total cost and hardware difficulties are reduced by increasing the voltage levels. The unipolar based Pulse Width Modulation Schemes (PWMS) will improve DCL inverters performance. This paper presents unipolar Multi-Reference (MR) based sine and space vector PWMS with single triangular carrier wave for generating required levels in output voltage. Comparison between UMR sine and space vector PWMS for DCL inverter topologies is presented in terms of Fundamental Output Voltage (FOV) and Total Harmonic Distortion (THD). The research tries to establish the survey analysis for single-phase 7-level DCL based reversing voltage type MLI topologies with UMR based sine and space vector PWMs. Finally, to confirm the feasibility of proposed DCL-MLIs in terms of FOV and THD the simulation results are incorporated. Further, the prototype model is developed for single-phase 7-level DCL inverter with Field Programmable Gate Array (FPGA) based UMR sine and space vector PWMS to authenticate simulation results. The efficiency of the proposed cascaded MLI achieves the value of 99.003%.

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Evaluation of Impedance network Based 7-Level Switched Capacitor Multi Level Inverter for Single Phase Grid Integrated System

Cited by 4 publications

References 26 publications

An Enhanced Z-Source Switched MLI Capacitor for Integrated Micro-Grid with Advanced Switching Pattern Scheme

An Enhanced Z-Source Switched MLI Capacitor for Integrated Micro-Grid with Advanced Switching Pattern Scheme

Simulation and analysis of a grid integrated distribution system based on LMS algorithm for hybrid types of load

An assessment of advanced DC-link based reversing voltage type multilevel inverter topologies

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