Implementation of cascaded H-bridge DC-link inverter for marine electric propulsion drives

Rao, S. Nagaraja; Varanasi, Praveen Kumar; Anisetty, Suresh Kumar; Manjunatha, B. M.

doi:10.1515/ehs-2022-0049

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Table 5 gives comparison details of conventional and DCL based MLI for obtaining 7-level output for cascaded type MLI. It clearly shows that there is a considerable reduction of the number of components with the suggested structure [5,48]. The percentage reduction in components will be high through the number of levels as mentioned before.…”

Section: Cascaded-dcl (C-dcl) Invertermentioning

confidence: 51%

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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Section: Cascaded-dcl (C-dcl) Invertermentioning

confidence: 51%

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

Rao

Manjunatha²,

Kumar³

et al. 2023

IRASE

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Assessment of hybrid MPPT for SPV based high gain cubic boost converter interfaced with reduced switch multilevel inverter for power quality enhancement

Veerabhadra,

Rao

2023

Eng. Res. Express

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A high-gain cubic boost converter (HG-CBC) with hybrid-based maximum power point tracking (MPPT) through a neural network (NN) aided by the P&O technique (HNN-PO MPPT) has been suggested to acquire optimum power from a solar photovoltaic (SPV) model under varying climatic conditions. The SPV’s output is enhanced using the suggested HG-CBC as per the requirement. A detailed comparison of different conventional boost converters (BC) with the suggested HG-CBC is presented, mainly highlighting part count and boost factor (B). Using the MATLAB tool, the functionality of the developed HNN-PO MPPT technique has been examined for constant and different irradiation (G) levels. The hybrid-based MPPT helps quickly attain maximum power point (MPP) with minimum oscillations at the output. The convergence period is very short with high precision in comparison with P&O and NN MPPT. The results are examined between the suggested and traditional MPPT methods in relation to the percentage of oscillations and rise time. The Reduced Switch Multilevel Inverter (RSMLI) is proposed to integrate the SPV with the RL load. The RSMLI is compared with the conventional standard five-level MLI in relation to the quantity of DC sources, diodes, switches, capacitors, and other parts utilized. The suggested MLI involves a reduced switch count, which mitigates the overall losses during switching and hence improves the efficiency of an inverter. MLI switches are controlled using a sine Pulse Width Modulation (PWM) technique. The THD of the output current of a five-level RSMLI is 4.47%, and it falls within the IEEE 519 norm. Hence, output power quality is enhanced.

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Topology Evaluation of Impedance Source Inverter for Solar Based EV Applications

Ramanjani

Rao

Kumar

2022

2022 IEEE North Karnataka Subsection Flagship International Conference (NKCon)

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Implementation of cascaded H-bridge DC-link inverter for marine electric propulsion drives

Cited by 3 publications

References 18 publications

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

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

Assessment of hybrid MPPT for SPV based high gain cubic boost converter interfaced with reduced switch multilevel inverter for power quality enhancement

Topology Evaluation of Impedance Source Inverter for Solar Based EV Applications

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