Vector-controlled unrestricted frequency changer (UFC) system an

Details Vector-controlled unrestricted frequency changer (UFC) system an Vector-controlled unrestricted frequency changer (UFC) system an

1986-07-22

1987-12-15

Wong, Peter S.

Electric power conversion systems

Frequency conversion without intermediate conversion to d.c.

By semiconductor converter

318809, H02M 5257

Patent

active

047137452

ABSTRACT:
A UFC is controlled with polar coordinates, a phase checked loop combining with an angular demand to establish a predetermined and tuned sequence of switch combinations between the converters of the UFC, to generate between the output phase-loads the desired voltage vector.

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F. Bilalovic et al., "Current Inverter in the Sliding Mode for Induction Motor Control" IFAC Symposium on Control in Power Electronics and Electrical Drives, Lausanne, Switzerland 1983, Pergamon Press, 1984, pp. 139-144.
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W. Leonhard, "Control of AC-Machines with the Help of Microelectronics", Inst. F. Regelungstechik, Techn. University Braunscheweig, Germany, pp. 35-58.

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