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A novel strategy for microcomputer-based control of a single-phase output cycloconverter

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3 Author(s)
Miyazawa, S. ; Dept. of Electr. Eng., Sci. Univ. of Tokyo, Chiba, Japan ; Nakamura, Fukuzo ; Yamada, Naohei

A novel control algorithm using a time process chart that is capable of accurate control of cycloconverters is developed. This algorithm is obtained by making a straight-line approximation in a newly contrived phase plane. In spite of its rather simple procedures, this algorithm is capable of highly accurate control that is comparable to that of the conventional analog scheme. A six-pulse noncirculating current-type cycloconverter is controlled with a small-scale interface and a high-speed control program. Experimental results confirm the validity and usefulness of the proposed method. As far as the processing time is concerned, this method could be used to control a system with a larger pulse number, such as a 12 or 24-pulse system

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Industrial Electronics, IEEE Transactions on  (Volume:36 ,  Issue: 4 )