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J. Miniböck, F. Stögerer, J.W. Kolar:
"A Novel Concept for Mains Voltage Proportional Input Current Shaping of a VIENNA Rectifier Eliminating Controller Multipliers. Part I: Basic Theoretical Considerations and Experimental Verification";
Talk: 16th Applied Power Electronics Conference, Anaheim, California USA (invited); 2001-03-04 - 2001-03-08; in: "Proceedings", Vol.1 (2001), 582 - 586.

Part I of this paper proposes a novel mains voltage proportional input current control concept eliminating the multiplication of the output voltage controller output and the mains AC phase voltages for the derivation of mains phase current reference values of a three phase/level/switch PWM (VIENNA) rectifier system. Furthermore, the concept features a low input current ripple amplitude as, e.g., achieved for space vector modulation, a low amplitude of the 3rd harmonic of the current flowing into the output voltage center point and a wide range of modulation. The practical realization of the analog control concept as well as experimental results for application with a 5kW prototype of the PWM rectifier are presented. Furthermore, a control scheme which relies only on the absolute values of the input phase currents and a modified control scheme which does not require information about the mains phase voltages and therefore is ideally suited as a basis for the development of an integrated control circuit for three phase power factor correction is presented. In Part II of the paper a comparison of the experimental results of a conventional average current mode control scheme employing controller multipliers and of the proposed control scheme in case of a heavily unbalanced mains as well as for two phase operation is treated in detail.