Design and application of a novel structure and topology for multilevel inverter

Beşer, Ersoy; Çamur, Sabri; Arifoğlu, Birol

doi:10.1109/speedham.2008.4581249

Cited by 29 publications

(10 citation statements)

References 4 publications

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“…The switching strategy in the proposed method is to generate gate signals by calculating switching angles [20]. The required switches are switched alternately and multilevel output voltage wave is obtained by using the calculated angle values and the known frequency.…”

Section: Table I Number Of Switches and Output Levels Related To Numbmentioning

confidence: 99%

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Design and Application of a Single Phase Multilevel Inverter Suitable for using as a Voltage Harmonic Source

Beşer¹,

Arifoğlu²,

Çamur³

et al. 2010

Journal of Power Electronics

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This paper presents a single phase multilevel inverter for using as a voltage harmonic source. First, a single phase multilevel inverter system is presented and the structural parts of the inverter are described. In order to obtain multilevel output voltage waveforms, a switching strategy based on calculating switching angles is explained and an improved formula for determining switching angles is given. Simulation and experimental results of multilevel voltage waveforms are given for 15, 31 and 127 levels. The proposed topology does not only produce output voltages with low THD values. It also produces the required harmonic components on the output voltage. For this purpose, equations for switching angles are constituted and the switching functions are obtained. These angles control the output voltage as well as provide the required specific harmonics. The proposed inverter structure is simulated for various functions with the required harmonic components. The THD values of the output voltage waves are calculated. The simulated functions are also realized by the proposed inverter structure. By using a harmonic analyzer, the harmonic spectrums, which belong to the output voltage forms, are found and the THD values are measured. Simulation and experimental results are given for the specific functions. The proposed topology produces perfectly suitable results for obtaining the specific harmonic components. Therefore, it is possible to use the structure as a voltage harmonic source in various applications.

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Section: Table I Number Of Switches and Output Levels Related To Numbmentioning

confidence: 99%

“…This paper presents the performance of a single phase multilevel inverter for using as a voltage harmonic source. The structure of the proposed inverter is different from some inverter types in literature [11]. The level number can be easily increased.…”

mentioning

confidence: 99%

Design and Application of a Single Phase Multilevel Inverter Suitable for using as a Voltage Harmonic Source

Beşer¹,

Arifoğlu²,

Çamur³

et al. 2010

Journal of Power Electronics

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“…Hence, the output voltage wave shape shifts towards to the sinusoidal waveform. The power quality can be achieved better with the more number of levels in the voltage and current waveform [9][10][11]. In this paper a multi-level inverter circuit for the performance analysis of single phase SPV system is presented.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Solar PV based Grid Tied Multilevel Inverter Scheme for Linear and Non Linear Load

Ahmad*¹,

Kirmani²

2019

IJRTE

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This paper presents the performance of Solar Photo Voltaic (SPV) based grid connected multilevel inverter scheme having linear and nonlinear load connected at the Point of Common Coupling (PCC). Initially the analysis was carried out for the complete inverter circuit resulting in a slightly higher harmonics in PCC voltage and current, which can be further reduced to a lower value by connecting a filter. For a linear RL load, due to the filter, the THD in PCC voltage is reduced from 13% to below 5% (IEEE standard) and the THD in grid current decreases to below 5% from 14.8%. Similarly for a nonlinear load at PCC, a Diode Bridge, the harmonics in PCC voltage and the grid current can be further reduced to the lower level by connecting filter. The results obtained from simulation using SIMULINK/MATLAB Software are tabulated for SPV based grid tied system and also explained graphically.

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“…In recent years, power electronic inverters are becoming very important for many applications such as, motor controlling and power systems [1,2]. In last years, multilevel inverters have been received increasing attention due to many advantages such as, high quality output waveform, low value of the voltage stress on switches, lower switching losses and higher efficiency [3].…”

Section: Introductionmentioning

confidence: 99%

A Modified Modular Multilevel Converter with Reduced Number of Power Electronic Components

Harbi

Azazi

Lashine

et al. 2015

ERJ. Engineering Research Journal

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This paper presents a modified multilevel inverter with a few number of semiconductor switches and increasing number of output levels. One stage of the proposed inverter leads to get seven levels in the output voltage, while, forty-nine levels can be obtained when using two stages. Only six semiconductor switches are required for each stage. Standard DC sources are used, so, DC-DC converter is not required to get the desired output standard voltage. Total harmonic distortion in the output waveform of the two stage inverter is very low, so, using filter to improve output waveform is unnecessary. This topology is valid for all types of loads. Simulation results are presented for one stage and two stage inverters proposed. Experimental results are included for the one stage inverter to verify the theoretical results.

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Design and application of a novel structure and topology for multilevel inverter

Cited by 29 publications

References 4 publications

Design and Application of a Single Phase Multilevel Inverter Suitable for using as a Voltage Harmonic Source

Design and Application of a Single Phase Multilevel Inverter Suitable for using as a Voltage Harmonic Source

Performance Analysis of a Solar PV based Grid Tied Multilevel Inverter Scheme for Linear and Non Linear Load

A Modified Modular Multilevel Converter with Reduced Number of Power Electronic Components

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