Analysis of different modulation techniques for multilevel inverters

Rushiraj, G Jani; Kapil, P. N.

doi:10.1109/iceeot.2016.7755254

Cited by 30 publications

(11 citation statements)

References 5 publications

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“… Alternative phase opposition disposition [5], [6], [8]  Phase opposition disposition [5], [6], [8]  Phase disposition [5], [6], [8]…”

Section: Iiimethodologymentioning

confidence: 99%

“…Efficient multicarrier SPWM for cascaded H-Bridge symmetrical multilevel inverter was proposed to enhance the better quality of the output voltage waveform with a better harmonic spectrum [4]. Derived from the conventional two-level inverter SPWM technique multi-carrier Sine Pulse Width Modulation (SPWM) techniques are being broadly used for different multilevel inverter topologies [5]. Symmetrical Multilevel inverter (SMLI) topology with three-phase system is introduced to reduce the THD values [6].…”

Section: Existing Topologiesmentioning

confidence: 99%

“…A topology of single phase five level cascaded H-bridge multilevel inverter by using only five switches and two DC power source for lower electromagnetic interference generation and high output voltage was introduced [9]. Derived from the conventional two-level inverter SPWM technique multi-carrier Sine Pulse Width Modulation (SPWM) techniques are being broadly used for different multilevel inverter topologies [5]. Modular Multilevel Converter with Cascaded H Bridge Inverter using Five, Seven and Nine levels were introduced [10].…”

Section: Existing Topologiesmentioning

confidence: 99%

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Performance Research of Seven Level Multi-Level Inverter with Reduced Switches using Various PWM Techniques

2019

IJRTE

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A inverter is basically a device that usually converts DC to AC voltage without causing any power loss, applicable to only low to medium voltage applications. But in case of medium to high power applications, it has demerits like high switching losses, reduced cost and low efficiency. To overcome these demerits a Multilevel inverter applicable to high voltage and high-power applications which have low total harmonic distortion (THD) is introduced. This paper is mainly focused on seven-level inverter with five switches and four dc sources. with low total harmonic distortion, less switching loss without adding any complexity to the circuit. The switching topology is integrated with various SPWM techniques like Phase Disposition (PD), Phase Opposition Disposition (POD) and Anti Phase Opposition Disposition (APOD). For better performance of the inverter above three PWM techniques will be compared and analyzed to find the low THD configuration. The simulation of switching topology is done by MATLAB/Simulink.

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“… Alternative phase opposition disposition [5], [6], [8]  Phase opposition disposition [5], [6], [8]  Phase disposition [5], [6], [8]…”

Section: Iiimethodologymentioning

confidence: 99%

Section: Existing Topologiesmentioning

confidence: 99%

Section: Existing Topologiesmentioning

confidence: 99%

See 1 more Smart Citation

Performance Research of Seven Level Multi-Level Inverter with Reduced Switches using Various PWM Techniques

2019

IJRTE

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“…This is a discontinuous PWM technique in which a zero-sequence signal is injected to a sine wave [54][55]. This kind of signal is termed as Depenbrock's discontinuous PWM technique.…”

Section: Depenbrock's Discontinuous Pwm Technique (Dpwm)mentioning

confidence: 99%

An Extensive Review of Multilevel Inverters Based on Their Multifaceted Structural Configuration, Triggering Methods and Applications

2020

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Power electronic converters are used to transform one form of energy to another. They are classified into four types depending upon the nature of the input and output voltages. The inverter is one among those types; it converts direct electrical current into alternating electrical current at desired frequency. Conventional types of inverters are capable of producing voltage at the output terminal that can only switch between two levels. The range of output voltage generated at the output is low when they are used for high power applications. To improve the voltage profile and efficiency of the overall system, multilevel inverters (MLIs) are introduced. In multilevel inverters the voltage at the output terminal is generated from several DC voltage levels fed at its input. The generated output is more appropriate to a sine wave and the dv/dt rating is also less leading to the reduction in EMI. Though they possess many advantages compared to the conventional inverters, the structural complexity and triggering techniques involved in designing multilevel inverters are high. Many studies are being carried out in defining new topologies of MLI with reduced switch as well as with the implementation of different PWM techniques. This paper will provide an extensive review on variety of MLI configurations based on the parameters such as the number of switches, switching techniques, symmetric, asymmetric, hybrid topologies, configurations based on applications, THD and power quality.

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“…Os inversores multiníveis possuem mais degraus de tensão conforme aumenta-se o número de níveis. Este processo de aumentar o número de níveis da tensão faz com que o sinal de saída destes inversores assemelhe-se a uma onda senoidal pura (RUSHIRAJ, 2016), melhorando assim, índices de desempenho do inversor, como: taxa de distorção harmônica (THD), fator de distorção de primeira ordem (DF1) e tensão de modo comum (Vcm).…”

Section: Introductionunclassified

Técnica de Modulação Space Vector Aplicada a um Inversor Multinível Híbrido Assimétrico

Zambra

Rosito

2020

MUNDI ETG

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Este artigo apresenta o desenvolvimento da técnica de modulação space vector para um inversor multinível híbrido assimétrico com nove níveis na tensão de fase, com o objetivo de aperfeiçoar as características dos sinais de saída gerados pelo inversor através da seleção dos vetores de comutação. A introdução contextualiza o uso de inversores multiníveis e mostra algumas características das técnicas de modulação que podem ser usadas nesses conversores. A seguir, é exposta a topologia do inversor multinível híbrido assimétrico e, depois, são apresentados os passos necessários para o desenvolvimento da técnica de modulação space vector, determinados como: definição dos estados de chaveamento; definição dos vetores de comutação no plano α-β; identificação dos planos limites e dos planos de separação; obtenção das matrizes de decomposição; e, finalmente, definição da sequência de comutação. Duas sequências de comutação são escolhidas para obtenção da tensão de saída do inversor, sendo a qualidade do sinal gerado avaliada através de índices de desempenho implementados em software de simulação matemática. A primeira sequência de comutação é obtida realizando uma escolha aleatória dos vetores de comutação, enquanto a segunda sequência é selecionada para melhorar a qualidade do sinal gerado pelo inversor. Como resultado, a tensão de saída do inversor apresentou menor distorção harmônica, menor fator de distorção de primeira ordem e menor tensão de modo comum. Através desta comparação prova-se a importância de uma criteriosa seleção dos vetores de comutação para inversores multiníveis.

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Analysis of different modulation techniques for multilevel inverters

Cited by 30 publications

References 5 publications

Performance Research of Seven Level Multi-Level Inverter with Reduced Switches using Various PWM Techniques

Performance Research of Seven Level Multi-Level Inverter with Reduced Switches using Various PWM Techniques

An Extensive Review of Multilevel Inverters Based on Their Multifaceted Structural Configuration, Triggering Methods and Applications

Técnica de Modulação Space Vector Aplicada a um Inversor Multinível Híbrido Assimétrico

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