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On-load smooth regulating trnsformer

A technology of voltage regulating transformers and transformers, applied in the direction of regulating electric variables, instruments, control/regulation systems, etc., can solve problems such as voltage levels, achieve long service life, improve the level of safe operation, and improve the effect of voltage quality

Inactive Publication Date: 2007-11-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its regulation of voltage is still step-by-step

Method used

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  • On-load smooth regulating trnsformer
  • On-load smooth regulating trnsformer
  • On-load smooth regulating trnsformer

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Embodiment Construction

[0021] As shown in Figure 1, the one-phase power electronic transformer 1 that the present invention proposes is a device with input and output ports, and its input and output terminals all have two terminals, wherein, the two input terminals of the power electronic transformer 1 are respectively connected to The two terminals of the secondary side of the conventional iron-core transformer 2 are connected, and the two output terminals of the power electronic transformer 1 are usually respectively connected to a normal connection input terminal of the primary side of the conventional core-type transformer (or any other terminal or tap) is connected to a tap 4 (or any other terminal or tap 3) at the outermost end of the winding. When the secondary side voltage of the transformer deviates from the set value with the change of load, the output voltage amplitude of the power electronic transformer can be adjusted to change the input voltage amplitude of the primary side of the iron ...

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Abstract

A loaded smooth regulating transformer realizes the smooth regulation to the secondary voltage of a transformer. The input terminal of a power electronic transformer is connected with the subsidiary of a conventional iron core transformer, its output terminal is connected with the branch connector of the input end and input winding of the iron core transformer separately to alter the original input voltage amplitude of the iron core transformer by regulating the output voltage amplitude of the electronic transformer so as to realize regulation to the subsidiary voltage.

Description

technical field [0001] The invention relates to the voltage regulation technology in the electric power system, in particular to the regulation of the secondary side voltage of the transformer in the power distribution system. Background technique [0002] Power transformers are the most basic components of power systems and play a very important role in power transmission and distribution systems. Iron-core power transformers are usually used in power systems, which have the advantages of simple structure, high reliability, and low manufacturing cost. However, one of the shortcomings of the currently used iron-core power transformers is that the secondary voltage of the transformer cannot be adjusted, and the secondary voltage of the transformer cannot be kept constant. When the primary voltage is constant, the secondary voltage will drop as the load increases. . In order to solve this problem, transformer designers have adopted the method of leading several taps on the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/00G05F1/12
Inventor 毛承雄陆继明范澍王丹
Owner HUAZHONG UNIV OF SCI & TECH