2020
DOI: 10.1049/iet-pel.2019.0769
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Switching frequency variation based on current ripple analysis of a 3‐L PMSM drive system considering neutral point balance

Abstract: The output current ripple of the three-level (3-L) inverter is important to the performance of the 3-L permanent magnetic synchronous motor (PMSM) drive system, but the neutral point (NP) balance for the 3-L T-type inverter is not considered in the analysis of current ripple up to this point. The NP balance algorithms change the current ripple distribution and it is necessary to develop novel methods for current ripple analysis. In this study, the sinusoidal pulse width modulation with zero-order voltage injec… Show more

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Cited by 13 publications
(2 citation statements)
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“…Some works proposed a variable switching frequency pulse width modulation (VSFPWM) as an alternative to the classic spread-spectrum techniques [16], [17]. This technique has been adapted to work with AC drives [18], [19], threelevel converters, and T-type converters [20]. The VSFPWM technique has proved its effectiveness at low switching frequencies.…”
Section: Introductionmentioning
confidence: 99%
“…Some works proposed a variable switching frequency pulse width modulation (VSFPWM) as an alternative to the classic spread-spectrum techniques [16], [17]. This technique has been adapted to work with AC drives [18], [19], threelevel converters, and T-type converters [20]. The VSFPWM technique has proved its effectiveness at low switching frequencies.…”
Section: Introductionmentioning
confidence: 99%
“…The VSFPWM technique has an important advantage over other spread-spectrum modulations: It can limit the current ripple of the converter. This feature makes VSFPWM especially suitable for electric drives, where controlling the current ripple is critical (Wei and Lukaszewski, 2007;Zhao et al, 2020). This technique has been adapted to work with AC drives (Wei and Lukaszewski, 2007;, three-level converters, and T-type converters (Zhao et al, 2020).…”
Section: Variable Switching Frequency Pwmmentioning
confidence: 99%