Evaluation of current ripple amplitude in five-phase PWM voltage source inverters

Grandi, Gabriele; Loncarski, Jelena

doi:10.1109/eurocon.2013.6625114

Cited by 14 publications

(7 citation statements)

References 21 publications

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“…Regarding the five‐phase case, the analysis related to the output current ripple peak‐to‐peak value has been presented in [16], and a detailed experimental verification has been provided in [17]. A similar idea is presented in [18], where the current ripple prediction method for multiphase PWM converters is proposed on the basis of the equivalent single‐phase circuit.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of DC‐link voltage ripple in five‐phase PWM voltage source inverters

Vujacic

Hammami

Dordevic

et al. 2019

J. eng.

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Section: Introductionmentioning

confidence: 99%

Evaluation of DC‐link voltage ripple in five‐phase PWM voltage source inverters

Vujacic

Hammami

Dordevic

et al. 2019

J. eng.

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“…In particular, the analysis of the output current ripple amplitude in three-phase 2L inverters has been recently introduced in [13][14][15]. The extension to 2L multiphase inverters is given in [16][17][18], and compared in [19], whereas the extension to 3L three-phase inverters is given in [20] and [21]. In general, the knowledge of peak-to-peak current ripple amplitude in inverter motor drives allows one to optimize the switching frequency (and the associated losses), handle and minimize the acoustic noise, and mitigate the electromagnetic interference [17,22].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Output Current Ripple in Single and Dual Three-Phase Inverters for Electric Vehicle Motor Drives

et al. 2015

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Abstract:The standard solution for the traction system in battery powered electric vehicles (EVs) is a two-level (2L) inverter feeding a three-phase motor. A simple and effective way to achieve a three-level (3L) inverter in battery-supplied electric vehicles consists of using two standard three-phase 2L inverters with the open-end winding connection of standard three-phase ac motors. The 3L inverter solution can be usefully adopted in EVs since it combines several benefits such as current ripple reduction, increment of phase motor voltage with limited voltage ratings of the two battery banks, improvement in system reliability, etc. The reduction in current ripple amplitude is particularly relevant since it is a source of electromagnetic interference and audio noise from the inverter-motor power connection cables and from the motor itself. By increasing the inverter switching frequency the ripple amplitude is reduced, but the drive efficiency decreases due to the proportionally increased switching losses. In this paper the peak-to-peak ripple amplitude of the dual-2L inverter is evaluated and compared with the corresponding ripple of the single-2L inverter, considering the same voltage and power motor ratings. The ripple analysis is carried out as a function of the modulation index to cover the whole modulation range of the inverter, and the theoretical results are verified with experimental tests carried out by an inverter-motor drive prototype. OPEN ACCESSEnergies 2015, 8 3833

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“…The expression of alternating voltage (4) can be further simplified since the first and the third (last) term are www.ietdl.org negligible with respect to the second term [16][17][18], leading tõ…”

Section: Basic Voltage and Current Equationsmentioning

confidence: 99%

“…A more detailed investigation is presented in [16], also introducing simple and effective expressions to determine the maximum amplitude of the peak-to-peak current ripple in the fundamental period. The extension to multiphase inverters is given in [17] for five-phase VSI and in [18] for seven-phase VSI. A comparison considering the different phase number is shown in [19].…”

Section: Introductionmentioning

confidence: 99%

Analytical evaluation of output current ripple amplitude in three‐phase three‐level inverters

Grandi

Loncarski²,

Dordevic

2014

IET Power Electronics

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Analytical evaluation of output current ripple amplitude in three-phase threelevel inverters http://researchonline.ljmu.ac.uk/2435/ Article LJMU has developed LJMU Research Online for users to access the research output of the University more effectively. Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Users may download and/or print one copy of any article(s) in LJMU Research Online to facilitate their private study or for non-commercial research. You may not engage in further distribution of the material or use it for any profit-making activities or any commercial gain.The version presented here may differ from the published version or from the version of the record. Please see the repository URL above for details on accessing the published version and note that access may require a subscription. Abstract-Nowadays, three-phase multilevel inverters are widely employed in medium and high-power applications, increasing the power ratings, improving the output voltage quality and reducing the conducted electromagnetic interferences. Despite of numerous pulse-width modulation (PWM) techniques have been developed for multilevel inverters, a detailed analysis of the output current ripple amplitude has not been reported yet. In this study, the peak-topeak current ripple distribution over a fundamental period is analysed in details specifically for three-level three-phase voltage source inverters for both motor-load and grid-connected applications. In particular, the peak-to-peak amplitude of the current ripple is determined analytically as a function of the modulation index. The centred PWM strategy is considered in all the developments, implemented either by carrier-based or space vector (SV) PWM methods. With this modulation, the dc bus utilisation is maximised in a simple and effective way, and a nearly-optimal behaviour is obtained to minimise the current ripple rms. The results obtained in different cases and sub-cases identified in the proposed analytical approach are verified by experimental tests with reference to three-phase three-level neutral-point clamped configuration.

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Evaluation of current ripple amplitude in five-phase PWM voltage source inverters

Cited by 14 publications

References 21 publications

Evaluation of DC‐link voltage ripple in five‐phase PWM voltage source inverters

Evaluation of DC‐link voltage ripple in five‐phase PWM voltage source inverters

Comparison of Output Current Ripple in Single and Dual Three-Phase Inverters for Electric Vehicle Motor Drives

Analytical evaluation of output current ripple amplitude in three‐phase three‐level inverters

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