Single-phase five-level PWM rectifier

Rahim, N.A.; Jalil, J. A.

doi:10.1109/techpos.2009.5412084

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…Some five-level topologies have been also introduced that are using hysteresis current control or another complicated controllers that makes switching frequency higher than standard levels results in higher power losses and lower efficiency. Moreover, for medium voltage applications, high switching frequency is an important limit over choosing proper devices [25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Five-level reduced-switch-count boost PFC rectifier with multicarrier PWM

Vahedi

Chandra

Al‐Haddad³

2015

2015 IEEE Energy Conversion Congress and Exposition (ECCE)

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Abstract-A multilevel boost PFC (Power Factor Correction) rectifier is presented in this paper controlled by cascaded controller and multicarrier pulse width modulation technique. The presented topology has less active semiconductor switches compared to similar ones reducing the number of required gate drives that would shrink the manufactured box significantly. A simple controller has been implemented on the studied converter to generate a constant voltage at the output while generating a five-level voltage waveform at the input without connecting the load to the neutral point of the DC bus capacitors. Multicarrier PWM technique has been used to produce switching pulses from control signal at a fixed switching frequency. Multi-level voltage waveform harmonics has been analyzed comprehensively which affects the harmonic contents of input current and the size of required filters directly. Full experimental results confirm the good dynamic performance of the proposed five-level PFC boost rectifier in delivering power from AC grid to the DC loads while correcting the power factor at the AC side as well as reducing the current harmonics remarkably.

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Section: Introductionmentioning

confidence: 99%

Five-level reduced-switch-count boost PFC rectifier with multicarrier PWM

Vahedi

Chandra

Al‐Haddad³

2015

2015 IEEE Energy Conversion Congress and Exposition (ECCE)

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“…These multilevel rectifiers have more than one DC output terminals that should be connected to identical loads in order to operate in buck mode which is the main drawback. As well, to work in boost mode, the DC output terminals of such multilevel rectifiers are connected to only one load and works as series DC sources [9,[18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A new five-level buck-boost active rectifier

Vahedi

Labbé

Kanaan

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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In this paper a new single-phase five-level buckboost active rectifier is introduced called capacitor tied switches (CTS). The proposed rectifier has two independent DC outputs that can be connected to two different loads. Different switching states and the average mode of the proposed topology are analyzed to design the associated controller aims at regulating the two output DC voltages, generating five-level voltage at the input of the rectifier and finally draw unity power factor and sinusoidal current from AC grid. From AC grid view, the rectifier works in boost mode however the generated DC voltage can be split into two separate outputs which may be less than the AC peak voltage or even more leads to work in both buck and boost operation mode. Full simulation results are shown and analyzed to validate the effective operation and good dynamic performance of the proposed five-level buck-boost rectifier. Index Terms-multilevel converter, Packed U-Cell, active PFC rectifier, buck-boost rectifier, Capacitor Tied Switches (CTS).978-1-4799-7800-7/15/$31.00 ©2015 IEEE

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