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High-frequency full-control switch variable turn ratio current and voltage self-control transformer

A transformer and specific current technology, applied in the field of transformers, can solve the problems of large distributed capacity, complex transformers, and difficulty in meeting the dense load of the power grid, and achieve the effect of efficiently suppressing harmonic currents and harmonic currents

Active Publication Date: 2021-06-11
SHAANXI REGIONAL ELECTRIC POWER GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned shortcoming of the prior art, provide a kind of high-frequency full-control switch variable-turn-ratio current-voltage self-controlling transformer, to solve the transformer in the prior art It is too complicated to meet the problems of dense load and large distributed capacity of the existing power grid

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  • High-frequency full-control switch variable turn ratio current and voltage self-control transformer
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  • High-frequency full-control switch variable turn ratio current and voltage self-control transformer

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Embodiment Construction

[0026] The present invention is described in further detail below in conjunction with accompanying drawing:

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, and therefore cannot be construed as limiting the present invention; the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be construed as indicating or implying relative importance; in addition, unless otherwise Clearly stipulated and limited, the terms "installation"...

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Abstract

The invention discloses a high-frequency full-control switch variable turn ratio current and voltage self-control transformer. The transformer comprises a three-phase transformer body, a full-control switch device and a converter, wherein the full-control switch device and the converter are integrated. The three-phase transformer comprises a primary side primary winding, a secondary side series converter, a secondary winding and a secondary iron core. The three-phase transformer full-control switch can adjust the transformation ratio according to a control strategy, and the secondary side voltage is changed through magnetic field coupling, so that the purpose of regulating and controlling the load voltage is achieved; the secondary side series converter is a current control converter, participates in load side current adjustment, and can efficiently suppress harmonic current.

Description

【Technical field】 [0001] The invention belongs to the technical field of transformers, in particular to a high-frequency full-control switch variable-turn-ratio current-voltage self-control transformer. 【Background technique】 [0002] In recent years, renewable energy has developed rapidly, and the new situation of the coexistence of multiple centralized and distributed energy sources has brought challenges to the traditional transformer field. Distribution transformers not only need to complete voltage level conversion and power transmission, but also need to have the ability to stably maintain supply voltage, suppress harmonic current, reactive power compensation, optimize transmission power control, coordinate distribution of multi-line power, and multi-directional flow. Under this research background, the design of intelligent transformer has become a current research hotspot. Power electronic transformers (PET) and hybrid distribution transformers (HDT) have been propo...

Claims

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Application Information

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IPC IPC(8): H01F27/40H01F27/38H01F29/00
CPCH01F27/40H01F27/385H01F29/00Y02E40/30
Inventor 李文波高亚晨徐宏孙换春梁得亮柳轶彬李大伟周堃蔡生亮张立石王宇珩
Owner SHAANXI REGIONAL ELECTRIC POWER GROUP
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