Multilevel DC Link Inverter with Reduced Number of Switches and Batteries

Manjunatha, Y R; Anand, B A

doi:10.11591/ijpeds.v4i3.4618

Cited by 8 publications

(5 citation statements)

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“…The first bridge is connected in series with as several modules for every six level increase with each module inter-twined with a switch in series with the source, the combination shunted through an anti paralleldiode. The first H-bridge serve to increase the level of the dc-link voltage, the second H-bridge provides bi-directional power flow through the load 11,12 .…”

Section: Fig1 Equivalent Circuit Of Pvmentioning

confidence: 99%

Investigation of Dual Bridge Multilevel DC Link Inverter for PV Application

2018

IJCTR

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:The main objectiveof the proposed topology is to synthesize a high quality sinusoidal output voltage with considerably reduced switch count than the conventional MLI. The proposed topology consist of series connected H-bridge and diodes. The number of levels dependson dc source arrangement. Heredc sources can be replaced by PV.The proposed PV based dual bridge MLDCLI (DBMLDCLI) is evaluated using phase disposition (PD) multicarrier pulse width modulation (MC-PWM) strategy.The performance of a dual bridge dc-link inverter topology is simulated through MATLAB/SIMULINK and the THD of the output voltage is analyzed. The results are validated.

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Section: Fig1 Equivalent Circuit Of Pvmentioning

confidence: 99%

Investigation of Dual Bridge Multilevel DC Link Inverter for PV Application

2018

IJCTR

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“…In high and medium power applications, multilevel cascaded H-bridge voltage source inverter (CHBVSI) produces higher output voltages with lower THD than the conventional type. Pulse width modulation algorithms, applications, comparisons, and experimental circuits of CHBVSI are performed in [2][3][4][5][6]. The multilevel CHBVSI utilizes the same DC input source per each cell of the H-bridge.…”

Section: Introductionmentioning

confidence: 99%

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Antar¹,

Sadiq²,

Saleh³

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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Sensorless speed and torque control of a three-phase induction motor utilizing cascaded H-bridge inverter with unequal selected DC voltage sources (USDCVS) is presented in this study. Several output voltages with minimum distortions and IGBTs are achieved with DC input voltage sources equal to (1, 3, 9) Vdc. The induction motor speed and torque are estimated depending on the instantaneous output phase voltages and currents of the drive circuit. A novel controller circuit is built depending on a modified absolute sinusoidal PWM (MASPWM) technique. Embedded s-function is coded to regenerate switching pulses and get various output levels. Simulation results demonstrate that the USDCVS of the multilevel inverter based on MASPWM technique produces different output levels with acceptable distortion. Also, show an acceptable sensorless speed and torque responses at steady-state and dynamic operation conditions under different speeds and mechanical load torques that explained the strength of the drive and control circuits.

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“…Jamaludin et al [1] suggested a multilevel voltage source inverter with optimised usage of bidirectional switches. Manjunatha and Anand [2] proposed a multilevel DC Link Inverter with reduced switches and batteries. Pharne and Bhosale [3] made a review on various multilevel inverter topology.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Various Carriers Overlapping PWM Strategies for a Single Phase Ternary Multilevel Inverter

Balamurugan

Bensraj

2018

IJAPE

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<p>Multilevel inverters are used in power conversion system due to improved voltage and current waveforms. This paper presents the comparison of various Carrier Overlapping Pulse Width Modulation (COPWM) Strategies for the three phase Cascaded Multi Level Inverter (CMLI). Various new schemes adopting the constant switching frequency and also variable switching frequency multicarrier control freedom degree combination concepts are developed and simulated for the chosen three phase CMLI. A single phase CMLI is controlled in this paper with Sinusoidal PWM (SPWM) reference along with Carrier Overlapping (CO) techniques and simulation is performed using MATLAB-SIMULINK. The variation of fundamental RMS output voltage and total harmonic distortion is observed for various carrier overlapping techniques. Among the various equal amplitude and unequal amplitude carriers carrier overlapping techniques such as COPWM-A, COPWM-B and COPWM-C, It is observed from Table 4 that all PWM method provides output with relative low distortion for equal amplitude carriers. If equal voltage sources are chosen then the THD will be less in the case of unequal amplitude carriers. But for the unequal voltage sources the THD is more in the case of unequal amplitude carriers. It is observed from simulation results that (Table-5) almost in all the strategies unequal amplitude carriers gives more fundamental RMS values compared to equal amplitude carriers. It is seen from table 6 that peak voltage is more in the case of unequal amplitude carriers compared to equal amplitude carriers. It is observed from the table 7 that dc components are less in both equal and unequal amplitude carriers.</p>

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Multilevel DC Link Inverter with Reduced Number of Switches and Batteries

Cited by 8 publications

References 0 publications

Investigation of Dual Bridge Multilevel DC Link Inverter for PV Application

Investigation of Dual Bridge Multilevel DC Link Inverter for PV Application

Asymmetrical Multilevel Inverter with Modified Absolute Sinusoidal PWM Technique for Sensorless Control of Induction Motor

Analysis of Various Carriers Overlapping PWM Strategies for a Single Phase Ternary Multilevel Inverter

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