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A DSP based power analyzing and control system using three-dimensional current coordinates

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6 Author(s)
Young-cheol Lim ; Chonnam Nat. Univ., Kwangju, South Korea ; Young-Gook Jung ; Seok-Hwan Na ; Chan-Hak Choi
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A DSP based power analyzing and control system is presented in this paper. Using correlation techniques, a system's power can be decomposed into three components active, reactive, and distorted power. Each decomposed component is displayed in a 3-D current coordinate system. As a result, a new 3-D power factor is introduced as an alternative to the standard definition of the power factor. The developed system operates as a harmonics compensator as well. Harmonics compensation and analysis of the system's power can be accomplished simultaneously. For the real time control of the APF (active power filter), a DSP TMS320C31 is used. The experimental results support the conclusion that the developed system is highly accurate in analyzing system power, and has good performance in control of the APF

Published in:

Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on  (Volume:2 )

Date of Conference:

5-10 Aug 1996

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