一种移相整流变压器及串联拓扑变频器

Phase shift rectifier transformer and series connection topology frequency converter

Abstract

The invention relates to a phase shift rectifier transformer and a series connection topology frequency converter. The phase shift rectifier transformer comprises an iron core, and a primary winding, a secondary winding and an auxiliary winding which are wound on the iron core; the secondary winding comprises a phase A secondary winding, a phase C secondary winding, and a phase B secondary winding which is arranged between the phase A secondary winding and the phase C secondary winding; and the phase A secondary winding is wound in a reverse direction, and the phase C secondary winding is wound in a forward direction. By setting the winding sequences of the phase A secondary winding and the phase C secondary winding of the transformer, a safe insulation distance among the phase A secondary winding, the phase B secondary winding and the phase C secondary winding, or in the winding is optimized, so the design size and cost are reduced, and the structure is applicable to the optimized design of all phase shift rectifier transformers of series connection topology middle voltage frequency converters, such as horizontal transformers, vertical transformers and transformers with similar and special structures, and does not influence the running principle of the whole frequency converter which is formed by the transformer.
本发明涉及一种移相整流变压器及串联拓扑变频器,其中移相整流变压器包括铁心,以及绕制在铁芯上的原边绕组、副边绕组和辅助绕组;副边绕组包括A相副边绕组、C相副边绕组,以及设置在A相副边绕组和C相副边绕组之间的B相副边绕组,A相副边绕组反向绕制,C相副边绕组正向绕制。本发明通过规定变压器的A相和C相副边绕组绕制顺序,来优化A相副边绕组、B相副边绕组和C相副边绕组之间或者绕组内部的安规绝缘距离,从而降低设计尺寸和成本,适用于所有串联拓扑型式的中压变频器的移相整流变压器的优化设计,包括卧式变压器和立式变压器和类似的特殊结构的变压器,且对由变压器构成的变频器整机运行原理没有任何影响。

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-104253539-ADecember 31, 2014富士电机株式会社电力转换装置