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Adaptive control of DC link current in current source converter based STATCOM for improving its power losses
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index.pdf
Date
2012
Author
Karaduman, Ferdi
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In conventional three-phase PWM (Pulse Width Modulation) current source converter based STATCOM (Static Synchronous Compensator) applications, DC link current is kept constant at a predefined value and the reactive power of STATCOM is controlled by varying modulation index. This control strategy causes unnecessary power losses especially when the reactive power of STATCOM is low. For this purpose, in order to reduce the active power drawn by STATCOM, the modulation index can be maximized by adjusting DC link current. Within the scope of this thesis, an adaptive control of DC link current will be designed and applied to a 0.4kV 50kVAr three phase current source converter based STATCOM so that the power losses can be reduced. The theoretical work will be compared and discussed with the experimental results.
Subject Keywords
DC-to-DC converters.
,
Electric currents, Direct.
,
Pulse-duration modulation.
,
Electric current converters.
URI
http://etd.lib.metu.edu.tr/upload/12615310/index.pdf
https://hdl.handle.net/11511/22242
Collections
Graduate School of Natural and Applied Sciences, Thesis