Abstract

Continuing refinement of the cycloconverter design art has produced an all solid-state power converter which exhibits high efficiency, small size, light weight and high reliability. The controlability of the modern cycloconverter makes it particularly suitable for such applications as precise AC electric drive systems and light weight variable speed, constant frequency power generating systems. Due to the assumptions of infinite load inductance and infinite frequency ratio, the use of classical grid-controlled rectifier theory in the analysis of practical cycloconverters is not sufficiently accurate. According to classical theory, only ripple components of distortion appear in the cycloconverter output. This paper deals with the origin and nature of sub-ripple distortion components in the output.

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