A novel equidistant pulse control scheme for thyristor converters

Abstract
Various firing control systems for phase-controlled thyristor converters can be divided into two groups: Individual phase control scheme and equidistant pulse control scheme. The basic principles, advantages and disadvantages of the two groups are discussed in this paper. A novel equidistant pulse control scheme, simple and economic, is evolved which tends to combine most of the good features of the presently available firing control systems. Two types of this new control scheme are described and tested experimentally. Their relative advantages and disadvantages are discussed.

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