DC-Link compensation method for slim DC-link drives fed by soft grid

Laszlo Mathe, Henrik Rosendal Andersen, Radu Lazar, Mihai Ciobotaru

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

26 Citations (Scopus)

Abstract

Slim DC-link PWM (AC) drives for low-performance applications are emerging on the market. Such drives equipped with a small DC-link capacitance exhibit instability tendencies, if installed on a soft line, giving a degraded performance. The total harmonic distortion (THD) and the partially weighted harmonic distortion (PWHD) of the line current are degraded, if resonance between the line impedance and the DC-link capacitance occurs. Likewise, the motor performance is affected negatively giving extra torque ripple, vibration and acoustic-noise emission. This paper proposes a novel DC-link compensation method, which ensures the stability of the slim DC-link on a soft grid. The proposed compensation method may be used for open- and closed-loop control schemes, requiring a small overhead in the digital implementation.
Original languageEnglish
Title of host publicationProceedings 2010 IEEE International Symposium on Industrial Electronics
Pages1236-1241
Number of pages6
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventIEEE International Symposium on Industrial Electronics (2010)
- Bari, Italy
Duration: 4 Jul 20107 Jul 2010

Conference

ConferenceIEEE International Symposium on Industrial Electronics (2010)
CountryItaly
CityBari
Period4/07/107/07/10

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