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Tuning Harmonic Absorption of Voltage Source Converters

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Authors
Ledwich, G.
Ghosh, Arindam
zare, F.
Date
2010
Type
Conference Paper

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Ledwich, G. and Ghosh, A. and zare, F. 2010. Tuning Harmonic Absorption of Voltage Source Converters, in - (ed), 2010 14th International Conference on Harmonics and Quality of Power, Sep 26 2010, pp. 531-536. Bergamo, Italy: Institute of Electrical and Electronics Engineers ( IEEE ).
Source Title
2010 14th International Conference on Harmonics and Quality of Power (ICHQP 2010)
Source Conference
2010 14th International Conference on Harmonics and Quality of Power
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Abstract

This paper develops a tool for controlling the harmonic absorption of hysteretic controlled voltage source converters that are connected to a power system. Each VSC is controlled by a state feedback control input to a hysteretic comparator. A suitable model of the converter is first developed by including the state feedback gains and hysteretic switching controller design. It is shown how adjusting the design parameters of the controller of the LCL filter can make a significant change in the amount of harmonics absorbed by a converter. An ideal current controlled converter absorbs little harmonics from the system while an ideal voltage source converter will absorb all local harmonics.