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A novel superconductive controllable reactor

A reactor and superconducting technology, applied in the field of new superconducting controllable reactors, can solve problems such as complex protection devices, large harmonics, and expensive high-voltage thyristors, and achieve the effects of mature technology, reduced operating loss, and simple structure

Active Publication Date: 2008-09-10
安徽配天投资集团有限公司
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Problems solved by technology

[0004] ①Due to the limitation of thyristor valve manufacturing level, traditional controllable reactors cannot be directly used in systems above 35kV, and are usually connected to high-voltage power grids through step-down transformers;
[0005] ②Traditional controllable reactors bring a large number of harmonics, requiring additional filtering devices;
[0006] ③ Thyristor valves require accurate control and complex protection devices;
[0007] ④ Thyristors are used to provide full voltage compensation, high voltage thyristors are very expensive

Method used

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Embodiment Construction

[0021] The specific implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.

[0022] figure 1 It is a top view schematic diagram of a new type of superconducting controllable reactor, figure 2 It is a schematic diagram of the single-phase structure of the new superconducting controllable reactor. For the convenience of description and drawing, these two drawings only show the outer structure and single-phase structure of the new superconducting controllable reactor.

[0023] The present invention provides a novel superconducting controllable reactor, which is composed of a superconducting excitation winding 1, a short-circuit winding 2, an AC winding 3, an iron core 4, an excitation DC power supply 5 and a detection and control link 6 to monitor the reactive power of the power grid. dynamic compensation, where:

[0024] The iron core 4 is composed of twelve iron columns and twelve iron yok...

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Abstract

The invention provides a novel superconductive controllable reactor which mainly comprises a superconducting field winding, an excitation DC power supply, a detection control unit, an AC winding, a short-circuit winding and an iron core and so on. The novel superconductive controllable reactor can timely adjust the inductance value according to the running state of an electric grid so as to cause the reactive power in the electric grid to be compensated timely and completely, thus reducing the operation loss of the electric grid and improve the power supply quality of the system. Compared with traditional controllable reactor, the novel superconductive controllable reactor is safe and reliable in working and has higher overvoltage and overloading capacity; furthermore, the service life is long, the running cost is low and the installation and maintenance are easy. The advantages of the reactor are more distinct in the 35KV or higher electric grid levels.

Description

technical field [0001] The invention relates to a novel superconducting controllable reactor, which belongs to the technical field of dynamic reactive power compensation of transmission lines. Background technique [0002] With the rapid development of the national economy, the electric power industry is also developing rapidly. People's demand for electric energy is increasing day by day, and at the same time, the requirements for the reliability and quality of power supply are also getting higher and higher. Due to the continuous increase of load and the substantial increase of power plants, not only the network structure of the power system has been changed, but also the power supply distribution of the system has been changed, resulting in unreasonable reactive power distribution of the system. It may even cause a serious shortage of reactive power in some areas and a generally low voltage level. The unreasonable distribution of reactive power in the power system not on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F36/00H01F27/245H01F27/28H01F6/06H02J3/18
CPCY02E40/66Y02E40/30Y02E40/60
Inventor 孙尚传李锋张永方绪怀陈家林
Owner 安徽配天投资集团有限公司
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