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Marine three-phase-into-two-phase balancing transformer

A phase balance technology for ships, applied in the direction of transformers, fixed transformers, transformer/inductance parts, etc., can solve the problems of three-phase, unbalanced, etc. The effect of simple structure

Inactive Publication Date: 2016-05-25
NAVAL UNIV OF ENG PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the fact that the existing technology cannot solve the three-phase unbalance problem caused by single-phase load power supply in the ship power system, a balanced transformer with excellent comprehensive performance suitable for the three-phase three-wire ship power system is provided, which achieves a small number of windings, and the transformer The structure is simple, the material utilization rate is high, the technological progress is high, and no complicated impedance matching is required, and the production is easy

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  • Marine three-phase-into-two-phase balancing transformer
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  • Marine three-phase-into-two-phase balancing transformer

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Embodiment Construction

[0027] The implementation of the present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.

[0028] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the three-phase to two-phase balanced transformer for ships of the present invention, the three-phase to two-phase balanced transformer for ships, includes an iron core, a primary side winding and a secondary side winding, and is characterized in that the iron core is a three-phase column type or a three-phase Phase-shell type; the primary side winding adopts delta connection, composed of three-phase winding AX, BY, CZ, the number of winding turns is W 1 ;The secondary side winding is divided into two parts, the first part is the number of turns is W 2 The A-...

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Abstract

The invention relates to a marine three-phase-into-two-phase balancing transformer. The balancing transformer comprises an iron core, a primary side winding and a secondary side winding, wherein the iron core adopts a three-phase columnar shape or a three-phase shell shape; the primary side winding is connected in a triangular manner, consists of three-phase windings AX, BY, and CZ, and the number of turns of the windings is W1; the secondary side winding comprises two parts; the first part comprises A-phase and C-phase windings with the number of turns of W2; the A-phase and C-phase windings are connected in series; the second part comprises a B-phase winding with the number of turns of W3; the relationship of the number of turns of the secondary side winding is as follows: a formula is as shown in the specification. The technological advancement of less number of windings, simple structure of the transformer, and relatively high material utilization ratio is realized; complex impedance matching is not required; and the transformer is easy to produce and manufacture.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to a three-phase to two-phase balanced transformer applied to three-phase three-wire power systems such as ships. Background technique [0002] Single-phase load is a special three-phase asymmetric load. When the ship power system operates with single-phase load, the positive sequence component, negative sequence component and zero sequence component of the current in the grid are equal, which is an unbalanced state. Especially when the single-phase load is large, the unbalance degree of the power system may exceed the standard. [0003] At present, the ship's three-phase power system operates with single-phase loads, and the power supply method based on the average load distribution method is adopted. The single-phase transformer obtains electric energy from the grid to supply power to the single-phase load. Calculate the power of all single-phase loads, and distribute...

Claims

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Application Information

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IPC IPC(8): H01F30/14H01F27/28H01F27/30
CPCH01F30/14H01F27/2828H01F27/306
Inventor 孙盼赵镜红张俊洪夏益辉高嵬姜鹏
Owner NAVAL UNIV OF ENG PLA
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