Hybrid cascaded multilevel inverter with PWM control method

Liu, Haiwen; Tolbert, Leon M.; Khomfoi, Surin; Ozpineci, Burak; Zhang, Du

doi:10.1109/pesc.2008.4591918

Cited by 57 publications

(31 citation statements)

References 13 publications

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“…Multilevel inverters are now preferred in high power medium voltage applications due to the reduced voltage stresses on devices. Neutral point clamped inverters [12], [13], flying capacitors [14]- [16], and cascaded H-bridge inverters [17]- [19] are popular topologies of multilevel inverters. However, these multilevel inverter topologies require a large number of power semiconductor switches and thus suffer from high switching power losses.…”

Section: Introductionmentioning

confidence: 99%

PWM Control Techniques for Single-Phase Multilevel Inverter Based Controlled DC Cells

Sayed¹,

Ahmed²,

Elsheikh³

et al. 2016

Journal of Power Electronics

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This paper presents a single-phase five-level inverter controlled by two novel pulse width modulation (PWM) switching techniques. The proposed PWM techniques are designed based on minimum switching power loss and minimum total harmonic distortion (THD). In a single-phase five-level inverter employing six switches, the first proposed PWM technique requires four switches to operate at switching frequency and two other switches to operate at line frequency. The second proposed PWM technique requires only two switches to operate at switching frequency and the rest of the switches to operate at line frequency. Compared with conventional PWM techniques for single-phase five-level inverters, the proposed PWM techniques offer high efficiency and low harmonic components in the output voltage. The validity of the proposed PWM switching techniques in controlling single-phase five-level inverters to regulate load voltage is verified experimentally using a 100 V, 500 W laboratory prototype controlled by dspace 1103.

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Section: Introductionmentioning

confidence: 99%

PWM Control Techniques for Single-Phase Multilevel Inverter Based Controlled DC Cells

Sayed¹,

Ahmed²,

Elsheikh³

et al. 2016

Journal of Power Electronics

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“…The desired output of a multilevel inverter is synthesized by several sources of DC voltages. Some of the fundamental multilevel topologies include the diodeclamped [2][3][4], flying capacitor [4][5][6], and cascaded Hbridge structures [7][8][9][10]. Several combinatorial designs have also emerged by means of cascading the fundamental topologies that they are called hybrid topologies [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A New Family of Cascaded Transformer Six Switches Sub-Multilevel Inverter with Several Advantages

Banaei¹,

Salary²

2013

Journal of Electrical Engineering and Technology

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Abstract-This paper presents a novel topology for cascaded transformer sub-multilevel converter.Eachsub-multilevel converter consists of two DC voltage sources with six switches to achieve fivelevel voltage. The proposed topology results in reduction of DC voltage sources and switches number. Single phase low frequency transformers are used in proposed topology and voltage transformation and galvanic isolation between load and sources are given by transformers. This topology can operate as symmetric or asymmetric converter but in this paper we have focused on symmetric state. The operation and performance of the suggested multilevel converter has been verified by the simulation results of a single-phase nine-level multilevel converter using MATLAB/SIMULINK.

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“…There are several types of multilevel inverters; cascaded H-bridge [6][7][8], neutral-point-clamped, flying capacitor [9][10][11], and the others [12][13][14]. Particularly, cascaded H-bridge inverters have been focused inthese topologies because of the modularity and the simplicity [8].…”

Section: Introductionmentioning

confidence: 99%

Reduction of Components in Cascaded Transformer Multilevel Inverter Using Two DC Sources

Banaei¹,

Salary²,

Alizadeh³

et al. 2012

Journal of Electrical Engineering and Technology

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-In this paper a novel cascaded transformer multilevel inverter is proposed. Each basic unit of the inverter includes two DC sources, single phase transformers and semiconductor switches. This inverter, which operates as symmetric and asymmetric, can output more number of voltage levels in the same number of the switching devices. Besides, the number of gate driving circuits is reduced, which leads to circuit size reduction and lower power consumption in the driving circuits. Moreover, several methods to determination of transformers turn ratio in proposed inverter are presented. Theoretical analysis, simulation results using MATLAB/SIMULINK and experimental results are provided to verify the operation of the suggested inverter.

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Hybrid cascaded multilevel inverter with PWM control method

Cited by 57 publications

References 13 publications

PWM Control Techniques for Single-Phase Multilevel Inverter Based Controlled DC Cells

PWM Control Techniques for Single-Phase Multilevel Inverter Based Controlled DC Cells

A New Family of Cascaded Transformer Six Switches Sub-Multilevel Inverter with Several Advantages

Reduction of Components in Cascaded Transformer Multilevel Inverter Using Two DC Sources

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