Reducing the output harmonics of cascaded H-bridge multilevel inverter for Electric Vehicle applications

Hosseini, Seyed Hossein; Ahmadi, Muhd Zharif Rifqi Zuber; Zadeh, Saeid Ghassem

doi:10.1109/ecticon.2011.5947949

Cited by 16 publications

(9 citation statements)

References 13 publications

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“…Therefore, the precise division of current zero-crossing region of the H-bridge inverter series structure is particularly important. When the inverter unit switches 1 V , 4 V turn on and switches 2 V , 3 V turn off, the current of load rises. When switches 1 V , 4 V turn off and switches 2 V , 3 V turn on, the current of load drops.…”

Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

“…When the inverter unit switches 1 V , 4 V turn on and switches 2 V , 3 V turn off, the current of load rises. When switches 1 V , 4 V turn off and switches 2 V , 3 V turn on, the current of load drops. Therefore, it is necessary to find the switch positive or negative maximum conduction time of the H-bridge inverter series structure in the current zero-crossing region.…”

Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

“…V turn on. Because of symmetry, the maximum turn on time of the switches 1 V , 4 V is also the maximum turn on time of the switches 2 V , 3 V . As shown in figure IV, the triangular wave that is bipolar carrier can be expressed as follows:…”

Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

“…At present, the H-bridge inverter series structure has been applied in the electric car [1], photovoltaic grid-connected power generation system [2], series micro-grids [3] and wind/solar hybrid generation system [4] extensively. As the power switch has a certain turn-on and turn-off time, in order to prevent the phenomenon of short circuit appear in the bridge arm, dead time is needed to add to the power device switching process.…”

Section: Introductionmentioning

confidence: 99%

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Dead Zone Compensation Method of H-Bridge Inverter Series Structure

2017

Proceedings of the 2017 2nd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2017)

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Abstract-Based on the analysis of dead zone compensation principle in H-bridge inverter series structure, an improved average voltage feedforward compensation method of H-bridge inverter series structure is studied. Because the traditional average voltage feedforward compensation method has the phenomenon of false compensation in the current zero crossing region, the zero crossing region of the H-bridge inverter series structure output current is precisely divided in the improved method. Outside the current zero-crossing region, adopting the average voltage feedforward method. During the current zero-crossing region, the dead zone will not affect the output voltage, so no compensation is required, which effectively avoid the traditional average voltage feedforward compensation method has the phenomenon of false compensation caused by misjudgment of current direction in zero crossing region. Finally, the improved dead zone compensation method of H-bridge inverter series structure is simulated by MATLAB/SIMULINK software. The results verify the effectiveness of the method.

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Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

Section: Figure I Model Of H-bridge Inverter Series Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dead Zone Compensation Method of H-Bridge Inverter Series Structure

2017

Proceedings of the 2017 2nd International Conference on Electrical, Automation and Mechanical Engineering (EAME 2017)

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“…The modulations of the multilevel inverters are categorised into three classes, namely fundamental, mixed and high switching frequency (Hosseini et al, 2011). Fundamental frequency switching modulation produces the commutation of the switches in the fundamental output frequency and can also be used as a method for low frequency harmonics elimination.…”

Section: Modulation Methods Of Multilevel Invertermentioning

confidence: 99%

Improving power quality with reducing output harmonics for electric vehicle applications by using bacteria foraging algorithm

Farsadi

Ahmadi

2016

IJEHV

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Abstract:The requirements for the power inverter of the electric vehicles (EVs) include high peak power, low output harmonics, inexpensive circuit and low continuous power rating. The purpose of this paper is to reduce the output harmonics of a cascade H-bridge multilevel inverter for EV applications by means of a bacterial foraging algorithm (BFA). In this study, the modified BFA is proposed as a technique for solving non-linear equations of selective harmonics elimination technique for determining optimal switching angles in multilevel inverters. The proposed optimisation method enhances the convergence rate and accuracy in dealing with complex problems with high dimensions, by adding improved and dynamic aspects to its main algorithm. Also, in this paper, a lower number of DC voltage sources have been used in the provided inverter compared with common multilevel inverters; this has resulted in the reduction in price of the inverter. Simulation results on various conditions were carried out using PSCAD/EMTDC software.Keywords: cascaded H-bridge multilevel inverter; power quality; modulation method; switching angles; harmonics; BFA; bacterial foraging algorithm.Reference to this paper should be made as follows: Farsadi, M. and Ahmadi, M. (2016) 'Improving power quality with reducing output harmonics for electric vehicle applications by using bacteria foraging algorithm', Int.

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