AC-to-AC (frequency) converter with three switches per leg

Details AC-to-AC (frequency) converter with three switches per leg AC-to-AC (frequency) converter with three switches per leg

2007-12-18

2007-12-18

Riley, Shawn (Department: 2838)

Electric power conversion systems

Frequency conversion without intermediate conversion to d.c.

By semiconductor converter

Reexamination Certificate

active

11354423

ABSTRACT:
AC-to-AC power conversion systems and methods are presented, in which a small number of asymmetrical power switching devices are used to convert input AC power to output AC power of constant or variable frequency.

REFERENCES:
patent: 6031738 (2000-02-01), Lipo et al.
patent: 6987372 (2006-01-01), Wu et al.
Sakutaro Nonaka and Yasuhiko Neba, Current Regulated PWM-CSI Induction Motor Drive System Without a Speed Sensor, IEEE Transactions on Industry Applications, vol. 30, No. 1, Jan./Feb. 1994.
Thomas G. Habetler, A Space Vector-Based Rectifier Regulator for AC/DC/AC Converters, IEEE Transactions on Power Electronics, vol. 8, No. 1, Jan. 1993.
J.W. Kolar, M.Baumann, F. Schafmeister, H. Ertl, Novel Three-Phase AC-DC-AC Sparse Matrix Converter, Part I: Derivation, Basic Principle of Operation, Space Vector Modulation, Dimensioning, APEC 2002, V2 pp. 777-791, 2002.

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