A New Hybrid Multilevel Inverter Topology with Reduced Switch Count and dc Voltage Sources

Bassi, Hussain; Salam, Zainal

doi:10.3390/en12060977

Cited by 22 publications

(9 citation statements)

References 27 publications

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“…The number of switches that used to give a 15-level output voltage was 8-switches, while the output voltage distortion was 2.09% of RL load. In the same year [19], a 13-level inverter with less power electronic devices and dc voltage sources was designed. The output voltage THD with zero-level (ZL) and with none zero-level (NZL) inverter was 9.5% and 12.5%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Design of new structure of multilevel inverter based on modified absolute sinusoidal PWM technique

Saleh

Antar

Al-Badrani³

2021

IJPEDS

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The advantage of multilevel inverters is to produce high output voltage values with distortion as minimum as possible. To reduce total harmonic distortion (THD) and get an output voltage with different step levels using less power electronics switching devices, 15-level inverter is designed in this paper. Single-phase 11-switches with zero-level (ZL) and none-zero-level (NZL) inverter based on modified absolute sinusoidal pulse width modulation (MASPWM) technique is designed, modelled and built by MATLAB/Simulink. Simulation results explained that, multilevel inverter with NZL gives distortion percent less than that with ZL voltage. The THD of the inverter output voltage and current of ZL are 4% and 1%, while with NZL is 3.6% and 0.84%, respectively. These results explain the effectiveness of the suggested power circuit and MASPWM controller to get the required voltage with low THD.

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Section: Introductionmentioning

confidence: 99%

Design of new structure of multilevel inverter based on modified absolute sinusoidal PWM technique

Saleh

Antar

Al-Badrani³

2021

IJPEDS

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“…To overcome these problems, multilevel inverter (MLI) topologies were introduced for GCPPPs as they have the ability to provide good quality output waveforms with low harmonic distortion, lower stress on switches, a lesser requirement of passive filter, and require less maintenance [6][7][8]. The MLIs are classified into various types based on the power circuitry structure such as reduced switch [9,10], asymmetric [11], modular [12], and hybrid [13,14], etc. The quality of output waveforms of MLIs greatly depends on the modulation technique (MT) applied to the switches (metal oxide silicon field effect transistor, insulated gate bipolar transistor, etc.).…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

et al. 2020

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The installation of photovoltaic (PV) system for electrical power generation has gained a substantial interest in the power system for clean and green energy. However, having the intermittent characteristics of photovoltaic, its integration with the power system may cause certain uncertainties (voltage fluctuations, harmonics in output waveforms, etc.) leading towards reliability and stability issues. In PV systems, the power electronics play a significant role in energy harvesting and integration of grid-friendly power systems. Therefore, the reliability, efficiency, and cost-effectiveness of power converters are of main concern in the system design and are mainly dependent on the applied control strategy. This review article presents a comprehensive review on the grid-connected PV systems. A wide spectrum of different classifications and configurations of grid-connected inverters is presented. Different multi-level inverter topologies along with the modulation techniques are classified into many types and are elaborated in detail. Moreover, different control reference frames used in inverters are presented. In addition, different control strategies applied to inverters are discussed and a concise summary of the related literature review is presented in tabulated form. Finally, the scope of the research is briefly discussed.

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“…Thirteen levels can be produced in the E-type [16] and 17 levels in the ST-type [17] using four dc voltage sources with 10 and 12 switches, respectively. Similarly, other MLI topologies have been proposed in [18][19][20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Hybrid Single T-Type Double H-Bridge Multilevel Inverter (STDH-MLI) Topology

et al. 2019

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Multilevel inverters are proficient in achieving a high-quality staircase output voltage waveform with a lower amount of harmonic content. In this paper, a new hybrid multilevel inverter topology based on the T-type and H-bridge module is presented. The proposed topology aims to achieve a higher number of levels utilizing a lower number of switches, direct current (dc) voltage sources, and voltage stresses across different switches. The basic unit of the proposed single T-type and double H-bridge multilevel inverter (STDH-MLI) produces 15 levels at the output using three dc voltage sources. The proposed topology can be extended by connecting a larger number of dc voltage sources in the T-type section. The nearest level control (NLC) switching technique is used to generate gate pulses for switches to achieve a high-quality output voltage waveform. In addition, a simplified way to achieve NLC is also described in the paper. A detailed comparison with other similar topologies is provided to set the benchmark of the proposed topology. Finally, experimental work is carried out to validate the performance of the proposed topology.

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A New Hybrid Multilevel Inverter Topology with Reduced Switch Count and dc Voltage Sources

Cited by 22 publications

References 27 publications

Design of new structure of multilevel inverter based on modified absolute sinusoidal PWM technique

Design of new structure of multilevel inverter based on modified absolute sinusoidal PWM technique

A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

Design and Implementation of a Hybrid Single T-Type Double H-Bridge Multilevel Inverter (STDH-MLI) Topology

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