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Single-phase series transformer and power flow control system

A series transformer, single-phase technology, applied in the direction of transformer, fixed transformer, transformer/inductor magnetic core, etc., can solve the problem of unreasonable utilization of power grid equipment and affecting the safe operation of power grid system.

Pending Publication Date: 2019-10-08
XIAN XIDIAN TRANSFORMER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the power flow transmission is extremely unbalanced, it may cause one transmission line to approach or exceed its transmission constraint edge, while the other transmission line only reaches a small part of its transmission capacity. This situation will cause grid equipment The unreasonable use of it is more likely to affect the safe operation of the entire power grid system

Method used

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  • Single-phase series transformer and power flow control system
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  • Single-phase series transformer and power flow control system

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0026] With reference to the following description and accompanying drawings, there are disclosed in detail specific embodiments of the invention, indicating the manner in which the principles of the invention may be employed. It should be understood that embodiments of the invention are not limited thereby in scope. Embodiments of the invention encompass many changes, modifications and equivalents within the spirit and scope of the appended claims.

[0027] ...

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Abstract

The invention provides a single-phase series transformer and a power flow control system. The head end and the tail end at the grid side of the single-phase series transformer are connected in serieswith a power grid line. The single-phase series transformer comprises at least one winding structure, wherein the winding structure includes a balance winding, a valve side winding, a grid side winding and a compensation device, and the balance winding, the valve side winding, the grid side winding and the compensation device are sleeved on a main column of a magnetic circuit of the single-phase series transformer. The series transformer provided by the invention has high overexcitation tolerance multiple, high short-circuit current tolerance and high ground insulation tolerance level far exceeding the rated voltage level thereof, can effectively reduce the cost of a unified power flow control device and other equipment, and can realize flexible control for the system power flow, improve the transmission capacity of the line and save the construction cost of outgoing lines.

Description

technical field [0001] The invention relates to electric power technology, specifically a single-phase series transformer and a power flow control system. Background technique [0002] At present, the power grid is gradually developing in the direction of large units, ultra-high voltage, long-distance transmission and cross-regional interconnection. The interconnection of regional power grids will expand the scale of the power grid, which will subsequently cause unbalanced distribution of power flows. When the power flow transmission is extremely unbalanced, it may cause one transmission line to approach or exceed its transmission constraint edge, while the other transmission line only reaches a small part of its transmission capacity. This situation will cause power grid equipment The unreasonable use of power grids is more likely to affect the safe operation of the entire power grid system. At the same time, in the process of power exchange between interconnected transmis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F30/10H01F27/28H01F27/32H01F27/24H02J3/18
CPCH01F30/10H01F27/2823H01F27/324H01F27/24H02J3/1814H01F2027/2838Y02E40/30
Inventor 帅远明王粉芍罗芳祥刘燕高翔
Owner XIAN XIDIAN TRANSFORMER
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