An extended dual input dual output three level Z source inverter with improved switch loss reduction technique

Deshmukh, Nachiketa; Thombare, R. D.; Waware, Madhukar M.; More, D. S.

doi:10.1016/j.jesit.2016.07.003

Cited by 13 publications

(24 citation statements)

References 6 publications

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“…9a and b. The top load and bottom load reference voltages are represented by (17) and (18) and this is the expected output (19) and (20) is selected to prove this.…”

Section: Dual Output Npc Topology With 12 Switchesmentioning

confidence: 99%

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Comparison and optimisation of three‐level neutral point clamped dual output inverter

Arunachalam

Vairakannu

Nallathambi

2020

IET Circuits, Devices & Systems

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Multi-level inverter gives low total harmonic distortion when compared to the two-level inverter. A huge number of switches are required to enhance the performance of multi-level inverters. Conventional neutral point clamped (NPC) three-level inverter needs 12 switches to control a single three-phase load. In this research, dual input and output reduced switch count three-level inverter topology with a minimum number of switches is proposed to reduce the system cost, weight and driver circuits. The sinusoidal pulse width modulation (SPWM) control techniques are developed to control NPC dual inverters. The dual inverter with constant frequency and variable frequency mode are simulated by MATLAB Simulink software and the results are discussed in detail. The analysis plan with 15 different combinations of input parameters is developed as per the Box-Behnken method and the results are compared and discussed. Also, the results such as output voltage, V THD , I THD and efficiency are analysed by regression analysis and the derived regression equations can be used to predict the output parameters. The combination of input parameters and dual inverter topology, which give optimum output values are identified by composite desirability analysis. This dual inverter reduced switch count topology can be used for renewable energy applications to reduce the inverter cost and space.

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“…9a and b. The top load and bottom load reference voltages are represented by (17) and (18) and this is the expected output (19) and (20) is selected to prove this.…”

Section: Dual Output Npc Topology With 12 Switchesmentioning

confidence: 99%

“…The conventional NPC inverter is shown in Fig. 1 b and it needs 24 switches for control dual load, so it is reduced to 15 switches for dual input dual output inverter topologies with new loss reduction techniques [19].…”

Section: Introductionmentioning

confidence: 99%

Comparison and optimisation of three‐level neutral point clamped dual output inverter

Arunachalam

Vairakannu

Nallathambi

2020

IET Circuits, Devices & Systems

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“…The authors in [26] introduced a neutral point piloted (NPP) version of the NSI, to realize a multilevel dual-output converter. Independent control of the output voltages was later achieved in [27].…”

Section: Introductionmentioning

confidence: 99%

Cascaded Multioutput Multilevel Converter: Modulation and Operating Limits

Hussein

Ghias

2022

IEEE Trans. Ind. Electron.

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This paper presents the modulation and operating limits of the Modified Cascaded Multi-output Multilevel (CMOM) converter. A phase-disposition pulse width modulation (PD-PWM) strategy is developed to apply the optimal state that leads to a minimized device switching. A Hamming distance based cost function is adopted to evaluate the number of device transitions. The cost function is further modified to identify the optimal state from a number of feasible states. Moreover, the operating limits of the converter are analyzed for the safe and valid operation of the converter. Simulation and experiment results validate the theoretical analysis, and the converter is operational under a wide range of operation points. The proposed optimal state modulation strategy is shown to be effective in reducing the average device switching frequency.

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“…The NSI was extended to multilevel operation in a number of different topologies, including the dual-output T-type [12], dual-output Active Neutral-point Clamped [13], the dualoutput Neutral-point Clamped [14], the cascaded dual-output [15], and the flying capacitor dual-output [16] converters. The T-type and neutral point clamped based dual-output converters [12]- [14] share the limitation of a limited operation range, i.e. the inability to utilize the full dc-bus while independently controlling the output ports.…”

Section: Introductionmentioning

confidence: 99%

A Three-level Neutral-Point Clamped Dual-Output Converter

Hussein

Ghias

2021

2021 IEEE Energy Conversion Congress and Exposition (ECCE)

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This paper introduces a novel three-level dualoutput neutral-point clamped converter. The proposed topology has both the advantages of a reduced power component count and complete independent control of its outputs. The converter is operated using Finite-Control-Set Model Predictive Control (FCS-MPC). The mathematical model of the proposed converter is developed and is used in the FCS-MPC algorithm to realize the desired output currents and balance the neutral point voltage. The operation of the proposed topology is verified by comparing simulation and experimental results. Moreover, a comparison with the flying capacitor based dual-output converter, in terms of the total harmonic distortion and the average device switching frequency, is presented.

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An extended dual input dual output three level Z source inverter with improved switch loss reduction technique

Cited by 13 publications

References 6 publications

Comparison and optimisation of three‐level neutral point clamped dual output inverter

Comparison and optimisation of three‐level neutral point clamped dual output inverter

Cascaded Multioutput Multilevel Converter: Modulation and Operating Limits

A Three-level Neutral-Point Clamped Dual-Output Converter

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