Analytical Method for Pattern Generation in Five-Level Cascaded H-Bridge Inverter Using Selective Harmonic Elimination

Buccella, Concettina; Cecati, Carlo; Cimoroni, Maria Gabriella; Razi, Kaveh

doi:10.1109/tie.2014.2308163

Cited by 156 publications

(79 citation statements)

References 40 publications

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“…The output AC voltage waveform should be sinusoidal-like with low harmonic content. A PWM technique with selective harmonic elimination (SHE) is widely used to control multilevel inverter and produce output voltage with low total harmonic distortion (THD) [24]. …”

Section: A Inverter Output As a Function Of Switching Anglesmentioning

confidence: 99%

Switched-Battery Boost-Multilevel Inverter with GA Optimized SHEPWM for Standalone Application

Lee

Chu

Idris

et al. 2016

IEEE Trans. Ind. Electron.

122

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Abstract--This paper presents a boost-multilevel inverter design with integrated battery energy storage system for standalone application. The inverter consists of modular switched-battery cells and a full-bridge.It is multifunctional and has two modes of operation: the charging mode which charges the battery bank and the inverter mode which supplies AC power to the load. This inverter topology requires significantly less power switches compared to conventional topology such as cascaded H-bridge multilevel inverter, leading to reduced size/cost and improved reliability. To selectively eliminate low-order harmonics and control the desired fundamental component, nonlinear system equations are represented in fitness function through the manipulation of modulation index and the Genetic Algorithm is employed to find the optimum switching angles. A 7-level inverter prototype is implemented and experimental results are provided to verify the feasibility of the proposed inverter design. In recent years, multilevel inverters have been receiving wide attention and becoming hot topologies for renewable energy applications [5], [6]. Multilevel inverters can be classified into three types that are flying- Index Terms--

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Section: A Inverter Output As a Function Of Switching Anglesmentioning

confidence: 99%

Switched-Battery Boost-Multilevel Inverter with GA Optimized SHEPWM for Standalone Application

Lee

Chu

Idris

et al. 2016

IEEE Trans. Ind. Electron.

122

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“…The THD, SUR, and DC link summations obtained by the CM method are presented in Table. II for both with and without the SUR cases. An increase in the THD (2.44%) is observed when the SUR is considered and it can be seen that the SUR is enhanced about 6.69% and the DC sum is decreased 6.37% at an output voltage of 0.7. with (8), (9), and (16), respectively. Having M varied between 0 and 1, the function is minimized.…”

Section: ) Analysis and Comparisonmentioning

confidence: 99%

“…Among the different topologies and structures, owing to some characteristics like modular structure, extendibility and electromagnetic compatibility, cascaded H-bridge inverters are the most popular [8]. Different switching techniques and control algorithms are employed to control these inverters [9]- [12]. In most of these methods, the main purpose is harmonic reduction in generated output voltage.…”

Section: Introductionmentioning

confidence: 99%

Converter Utilization Ratio Enhancement in the THD Optimization of Cascaded H-Bridge 7-level Inverters

Khamooshi

Namadmalan²,

Moghani

2016

Journal of Power Electronics

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In this paper, a new technique for harmonic optimization in cascaded H-bridge 7-level inverters is proposed. The suggested strategy is based on minimizing an objective function which simultaneously optimizes the converter utilization and Total Harmonic Distortion (THD). The Switch Utilization Ratio (SUR) is formulized for both the phase and line-line voltages of a 7-level inverter and is considered in the final objective functions. Based upon the SUR formula, utilization ratio enhancement will reduce the value of feeding DC links, which improves the efficiency and lifetime of the circuit components due to lower voltage stresses and losses. In order to achieve more effective solution in different modulation indices, it is assumed that the DC sources can be altered. Experimental validation is presented based on a three-phase 7-level inverter prototype.

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“…In [14]- [16] fundamental structure have been developed but number of switches and voltage rating of switches are high. A new topology is presented in [17] and three algorithms have been explained that reduces the number of components used. But here the variety of dc sources increases.…”

Section: Introductionmentioning

confidence: 99%

Neural network controller based sequential switch cascaded H-bridge multilevel inverter

Ramya¹,

Rani²,

Kumar³

2018

IJET

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This paper presents a novel cascaded multilevel inverter structure with reduced devices. This structure is termed as sequential switch cascaded multilevel inverter. The basic asymmetrical hybrid circuit is described and is capable of generating 17 voltage levels. The various modes of deriving 17 levels are explained and the proposed topology is compared with existing topologies in various aspects. Neural network controller can be used to generate the gating pulses. The algorithm can be trained online by using back propagation algorithm and also an algorithm to determine the number of levels, maximum voltage ratings and power loss is explained. The simulation can be done by MATLAB Simulink.

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Analytical Method for Pattern Generation in Five-Level Cascaded H-Bridge Inverter Using Selective Harmonic Elimination

Cited by 156 publications

References 40 publications

Switched-Battery Boost-Multilevel Inverter with GA Optimized SHEPWM for Standalone Application

Switched-Battery Boost-Multilevel Inverter with GA Optimized SHEPWM for Standalone Application

Converter Utilization Ratio Enhancement in the THD Optimization of Cascaded H-Bridge 7-level Inverters

Neural network controller based sequential switch cascaded H-bridge multilevel inverter

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