Staggered winding-arranged 24-pulse wave magnetic integrated rectification transformer

Abstract

The invention discloses a staggered winding-arranged 24-pulse wave magnetic integrated rectification transformer. The staggered winding-arranged 24-pulse wave magnetic integrated rectification transformer comprises three sets of primary winding assemblies, three sets of secondary winding assemblies and a set of conjugation iron core, wherein the conjugation iron core comprises three vertical ironcore posts, an upper iron yoke and a lower iron yoke, the three vertical iron core posts are arranged at equal distance, the upper iron yoke is vertically connected with each vertical iron core post and is arranged above each vertical iron core post, and the lower iron yoke is vertically connected with each vertical iron core post and is arranged below each vertical iron core post. The staggered winding-arranged 24-pulse wave magnetic integrated rectification transformer has the technical characteristics that the electric energy quality is improved, unfavorable influence of a ring current on avariable-current transformer is prevented, the transformer is applicable to a limited ship space and the total volume of the rectification equipment is reduced; meanwhile, compared with a traditional24-pulse wave variable-current transformer, the transformer has the advantages that the whole set of iron core equipment can be saved, and the cost is greatly reduced; by arranging secondary windingsin a staggered way, the defect of industrial complexity of a traditional single 24-pulse wave variable-current transformer can be effectively overcome, a set of manufacturing die is saved, the industrial manufacturing process is simplified, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of transformer and electromagnetic technology, in particular to a 24-pulse magnetically integrated rectifier transformer with staggered winding arrangement. Background technique [0002] In space-constrained high-power electric propulsion and traction power conversion systems such as ships and traction substations, electric propulsion and traction have great technical advantages in terms of power efficiency, fuel saving, environmental protection, and maneuverability. However, with the development of power electronic technology, power electronic devices and various nonlinear devices are widely used in ship electric propulsion systems and rail transit traction power supply systems. While improving the system control and safety performance, it also brings the system Harmonic pollution and other issues. In the current scheme, two 12-pulse converter transformers are often connected to form a virtual 24-pulse converter tra...

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Problems solved by technology

[0004] In view of this, it is necessary to address the above problems and propose a 24-pulse magnetically integrated rectifier transformer with staggered winding arrangement to solve the problem of using two 12-pulse converters in the limited power conversion space in the above-mentioned background technology. The virtual 24-pulse converter transformer formed by the connection of transformers has the disadvantages of large volume, deviation of output voltage, and easy formation of DC current circulation

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