Series Passive Compensation of Common Mode Voltage in Multilevel Inverter Drives

Kempski, A.; Smoleński, Robert; Kot, E.; Strzelecki, Ryszard

doi:10.1109/pesc.2005.1581880

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…The maximum flux density value depends on the number of inverter levels (Kempski et al, 2005) and modulation strategy. Figure 7 shows the placement of the triangular (Holmes and Lipo, 2008;Loh et al, 2005).…”

Section: Voltage Produced By Multilevel Inverter With Various Carrmentioning

confidence: 99%

“…The passive CM voltage compensator with sinusoidal line-to-line voltages is a more sophisticated solution than ordinary EMI filters, therefore the development should consider the influence of inverter parameters on the shape of the compensated voltage (Akagi et al, 2002;Kempski et al, 2005). The most important factor that affects CM filter design is maximum flux density caused by the CM voltage.…”

Section: Passive CM Filter With Sinusoidal Line-to-line Voltagesmentioning

confidence: 99%

“…The most effective solution to problems connected with the CM voltage is the passive or active compensation of this voltage at the output of the inverter (Akagi and Oe, 2008;Akagi and Shimizu, 2008;Kempski et al, 2005;Ogasawara et al, 1998). The concept used in a passive compensator (Akagi et al, 2002;Akagi and Tamura, 2006), based on the connection of the passive CM and differential mode (DM) filters, allows a comprehensive solution to problems related to conducted emission in inverter-fed systems.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Determination of flux density produced by multilevel inverters in CM voltage filter

Smoleński

Kempski

Bojarşki

et al. 2011

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -The purpose of this paper is to evaluate the conditions in which a saturation of the common mode (CM) choke might appear to be essential for proper design of the CM voltage filters. This paper presents a method for the determination of a CM choke flux density produced by multilevel inverters with carrier-based modulations. Design/methodology/approach -The proposed combination of secant and tangent methods allows efficient and high-resolution determination of the CM voltage waveforms produced at the output of the multilevel inverters with commonly used carrier-based modulations. Findings -The presented results show that the application of a five-level inverter with specific modulation causes a decrease of the maximum flux density, down to 15 per cent of the maximum level of the flux density reached in a two-level inverter. The proposed, dedicated approximation method provides an accuracy of the root estimation better by about three orders for a comparable number of the function calls in comparison with Brent's method. Practical implications -The presented theoretical evaluations make possible the determination of the maximum expected value of the flux density produced by multilevel inverters with various types of carrier-based modulations, which allows a reduction in dimensions, weight and cost of CM chokes applied in CM voltage compensators. Originality/value -In the paper, the new formulas that describe the placement of triangular carrier functions for commonly used multilevel inverters have been presented. In order to avoid accumulation of the estimation error, during determination of the CM voltage time integral, a dedicated, efficient method of roots approximation has been developed.

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Section: Voltage Produced By Multilevel Inverter With Various Carrmentioning

confidence: 99%

Section: Passive CM Filter With Sinusoidal Line-to-line Voltagesmentioning

confidence: 99%