Multilevel selective harmonic elimination PWM technique in the nine level voltage inverter

Khoukha, I.; Hachemi, C.; Madjid, Berkouk El

doi:10.1109/icces.2007.4447075

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…In such applications like sunlight based Photograph Voltaic (PV) frameworks, the DC O/P power from PV should be switched over completely to AC power [6], [7]. An Inverter circuit is utilized in overflow with a clever Heartbeat Width Tweak DC half breed converter [8]- [14]. In general, when 's' number of Direct Current (DC) inputs are considered, the number of levels is 2S+1.…”

Section: Introductionmentioning

confidence: 99%

Design of a Novel Converter Topology for Micro Grid Applications

Devulal.B

2024

jes

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The Renewable Energy Sources (RES) are the primary source of energy because of reduction in fossil fuels day to day. The primary resource in all available non-conventional energy sources is solar energy. Solar energy is obtained normally from Photo Voltaic (PV) cells. In PV cells a photo diode is used which converts the sun irradiation into DC voltage, which is normally a low value, so this is not sufficient to run the electrical loads which are connected to the micro grids. To avoid this problem, a novel boost converter is needed to improve the voltage profile, but it has a problem of high ripple content in voltage profile, which is not preferable for giving as I/P to the Inverter. Normally inverter will take constant DC as an I/p and convert into Alternating Current (AC) voltage. To avoid the above-described ripple, a novel hybrid Pulse Width Modulation (PWM) based DC -DC converter is presented in this paper along with a SPWM inverter circuit which finds its applications in micro grids. The distinctive topologies of 13 and 21 level inverter have been analyzed with reduced number of switches. In traditional topologies a greater number of switches are required, and it can be decreased by planning the diverse topologies. The current distinctive topology is described and compared with the conventional configurations and the corresponding results are presented. With this, it can be observed that the proposed topology gives the better outcomes. This can be utilized as a part of various micro grid inverter applications.

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Section: Introductionmentioning

confidence: 99%

Design of a Novel Converter Topology for Micro Grid Applications

Devulal.B

2024

jes

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“…Although many approaches have focused on eliminating low-order frequency harmonics, the selective harmonic elimination (SHE) PWM method [9]- [10] is preferred widely in multilevel inverters [11]- [12]. The selective harmonic elimination pulsewidth modulation switching (SHEPWM) technique can be used to compute switching angles by solving the nonlinear transcendental equations characterizing harmonics [13]- [14].…”

Section: Introductionmentioning

confidence: 99%

Elimination of Harmonics in Multilevel Inverters Connected to Solar Photovoltaic Systems Using ANFIS: An Experimental Case Study

Sumithira

Kumar²

2013

Journal of Applied Research and Technology

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In this study, a multilevel inverter was designed and implemented to operate a stand-alone solar photovoltaic system. The proposed system uses pulse-width modulation (PWM) in the multilevel inverter to convert DC voltage from battery storage to supply AC loads. In the PWM method, the effectiveness of eliminating low-order harmonics in the inverter output voltage is studied and compared to that of the sinusoidal PWM method. This work also uses adaptive neuro fuzzy inference (ANFIS) to predict the optimum modulation index and switch angles required for a five level cascaded H-bridge inverter with improved inverter output voltage. The data set for the ANFIS-based analysis was obtained with the Newton-Raphson (NR) method. The proposed predictive method is more convincing than other techniques in providing all possible solutions with any random initial guess and for any number of levels of a multilevel inverter. The simulation results prove that the lower-order harmonics are eliminated using the optimum modulation index and switching angles. An experimental system was implemented to demonstrate the effectiveness of the proposed system.

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Modulation Index Sets of Low Switching Frequency Multilevel Inverters for Wind Generation System

Mohammed

Mailah

Radzi

et al. 2018

2018 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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In this paper, nine, seven, five and three level diode clamped multilevel inverters (9L-7L-5L-3L DCMI) have been designed and used in wind generation system. The DCMI is designed to operate at low switching frequency with low THD by increasing the number of output voltage levels. The proposed designed DCMI is then connected to permanent magnetic synchronous generator (PMSG) wind turbine to generate an AC output voltage. A low switching frequency sinusoidal pulse width modulation (SPWM) triggering circuit is adopted as the controlling signals. Several cases were studied with varying number of levels and/or modulation indices used. The overall system is modeled in MATLAB/Simulink and a satisfied result be obtained.

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Multilevel selective harmonic elimination PWM technique in the nine level voltage inverter

Cited by 5 publications

References 15 publications

Design of a Novel Converter Topology for Micro Grid Applications

Design of a Novel Converter Topology for Micro Grid Applications

Elimination of Harmonics in Multilevel Inverters Connected to Solar Photovoltaic Systems Using ANFIS: An Experimental Case Study

Modulation Index Sets of Low Switching Frequency Multilevel Inverters for Wind Generation System

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