Title :
Direct frequency converters for induction motor drives
Author :
Ribickis, Leonids ; Galkin, Ilja
Author_Institution :
Inst. of Ind. Electron. & Electr. Drive, Riga Tech. Univ., Latvia
Abstract :
In this paper, several types of direct frequency converters are described and compared. Mathematical models and results of simulation are presented. The first mentioned type of direct frequency converter is a three-to-single-phase double-zone converter. It is based on two series connected controlled voltage sources and can generate 49 possible output voltages. Different types of control can be used in such a converter; for example amplitude phase synthesis or pulse-width modulation. In the article, a three-phase to three-phase matrix converter is also described. Details of the pulse-width modulation and space-vector modulation schemes in such a converter are discussed. Implementation of the multi-level principle in the matrix converter is briefly analyzed. In the final part of the paper, a comparison of the above-mentioned converters is performed
Keywords :
AC-AC power convertors; frequency convertors; induction motor drives; modulation; switching circuits; amplitude phase synthesis; direct frequency converters; induction motor drives; mathematical models; matrix converter; multi-level principle; pulse-width modulation; simulation results; space-vector modulation; three-to-single-phase double-zone converter; Amplitude modulation; Frequency conversion; Induction generators; Induction motor drives; Mathematical model; Matrix converters; Phase modulation; Pulse modulation; Pulse width modulation converters; Voltage control;
Conference_Titel :
Industrial Electronics, 1999. ISIE '99. Proceedings of the IEEE International Symposium on
Conference_Location :
Bled
Print_ISBN :
0-7803-5662-4
DOI :
10.1109/ISIE.1999.801751
