Large-phase-shifting-angle phase modulation transformer

A transformer and phase-shifting angle technology, which is applied in the direction of transformers, transformer/inductor circuits, transformer/inductor coils/windings/connections, etc., can solve the problems of large range of phase modulation angles and complex structures, and meet the requirements of switches, The effect of increasing the adjustment range and facilitating wiring

Pending Publication Date: 2021-11-05
BAODING TIANWEI BAOBIAN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The no-load phase modulation angle of some phase modulation transformers reaches ±74.5°, and the phase modulation angle range of this phase modulation transformer is large and the structure is complex

Method used

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Embodiment Construction

[0015] The technical scheme of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, which is a preferred embodiment of the present invention. It should be understood that the described embodiments are only some of the embodiments of the present invention, not all of them; it should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] A phase-modulating transformer with a large phase-shift angle, including a series transformer 1, an excitation transformer 2, a balance transformer 3, a source-side bushing 4, a load-side bushing 5, a SOLO bushing 6, a NO bushing 7, an off-load switch 8 and O...

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Abstract

The invention relates to a large-phase-shifting-angle phase-modulation transformer, and belongs to the technical field of phase-modulation transformers. According to the technical scheme, a series transformer (1) is connected with a system line in series, a no-load switch (8) and an on-load switch (9) are arranged on the two sides of an exciting transformer (2), a forced shunting balancing transformer is arranged on a balancing transformer (3), and a lead of the series transformer (1) is connected with the forced shunting balancing transformer through the no-load switch (8). And a lead of the exciting transformer (2) is connected with the forced shunt balancing transformer through an on-load switch (9). The beneficial effects of the invention are that the no-load switch and the on-load switch are cooperatively used, so that the range of the phase modulation angle is increased; the bias winding is arranged to reduce the number of turns of the phase modulation coil, meet the switching requirement and increase the phase angle adjustment range; the three-phase switch is used as a single phase, so that the switch-level capacity is increased; the forced shunting balancing transformer enables the single-phase three-branch current of the switch to be balanced; and outgoing lines of the phase-modulation coils are fixed in different regions, thereby facilitating wiring.

Description

technical field [0001] The invention relates to a phase-modulating transformer with a large phase shift angle, belonging to the technical field of phase-modulating transformers. Background technique [0002] Since the development of the power system, many high-voltage power grids have been connected together to improve energy reliability and achieve power exchange over long distances. Factors such as changes in generator output and changes in electrical energy demand complicate grid management and must be managed to avoid potentially catastrophic disturbances in the system. Utilizing the phase-modulating transformer as the preferred tool can effectively control the grid power flow to stabilize the grid. As the construction of urban power grids becomes more and more complex, the demand for flexible power flow control is becoming more and more urgent, and the demand for phase change in the power sector is becoming more and more important. The phase modulation angle is an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/42H01F27/29H01F38/00
CPCH01F27/42H01F27/29H01F38/00
Inventor 张静张栋于素梅范洪涛程从明王二涛
Owner BAODING TIANWEI BAOBIAN ELECTRICAL
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