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Indirect current control scheme in PWM voltage-sourced converter

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3 Author(s)
Jae-Ho Choi ; Sch. of Electr. & Electron. Eng., Chung-Buk Nat. Univ., Cheongju, South Korea ; Hyong-Cheol Kim ; Joo-Sik Kwak

An indirect current control scheme for a PWM voltage source converter is proposed in this paper. The main advantages of this proposed system are that the sinusoidal line current waveforms with near unity power factor and the ripple-free DC output voltage waveform are achieved without any current sensors. The mathematical model based on the space vector is derived and the principle of the indirect current control is described. From the comparison of the simulation and experimental results between the direct current control scheme and the indirect current control scheme, the validity of this proposed indirect current control is verified

Published in:

Power Conversion Conference - Nagaoka 1997., Proceedings of the  (Volume:1 )

Date of Conference:

3-6 Aug 1997