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Interline nondestructive single-phase diverter and design method and control method thereof

A shunt, single-phase technology, applied to the field of lossless single-phase shunt between lines and the field of design and control, can solve the problems of no accurate current control method and large energy consumption of the shunt.

Inactive Publication Date: 2019-02-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no precise control method for the current
The invention with the application number of 201811195033.0 provides a method of using a shunt to control the current of the inner conductor, but the designed shunt consumes a lot of energy

Method used

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  • Interline nondestructive single-phase diverter and design method and control method thereof
  • Interline nondestructive single-phase diverter and design method and control method thereof
  • Interline nondestructive single-phase diverter and design method and control method thereof

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Embodiment Construction

[0130] See attached picture.

[0131] The self-made heating wire with coaxial cable structure used in the present invention is the self-made heating wire disclosed in Chinese patents CN201810370549.8 and CN201811195033.0 applied by the inventor. Self-made heating wire structure such as Figure 8 As shown, it contains a self-made heating wire inner conductor 3, a self-made heating wire outer conductor 4, and an insulating material 60.

[0132] See attached figure 1 .

[0133] The shunt of the present invention is installed between two wires. The self-made heating wire is divided into several sections 2-1~2-n, the outer conductors 4-1~4-n of the adjacent self-made heating wires are short-circuited, and each section of the self-made heating wire is close to the inner conductor 3-1~2 of the power supply 5 at the sending end. 3-n and outer conductors 4-1 to 4-n are short-circuit connected, and the inner conductor close to the end of the electric load 6 is short-circuit connecte...

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Abstract

Disclosed are an interline nondestructive single-phase diverter and a design method and a control method thereof. The diverter comprises an on-load tap-changer, a diverter transformer, a voltage dividing transformer, a control motor, a microprocessor, two selector switches and a temperature sensing unit. The diverter is mounted between two guide lines. An input end of the diverter is connected with inner conductors and a first selector switch close to electricity load, and an output end of the diverter is connected with inner conductors, outer conductors and a second selector switch close to asupply end power source in the next section. The diverter transformer and the voltage dividing transformer are boosting transformers, and according to differences in structures, the diverter transformer is a duplex-winding diverter transformer or a self-coupling diverter transformer, and the voltage dividing transformer is a duplex-winding voltage dividing transformer or a self-coupling voltage dividing transformer. By means of calculating a coil turn ratio of the transformers, the selector switches are controlled by the microprocessor to enable current of the conductors to exactly meet requirement on ice resisting and melting, and the current and ice resisting and melting can be controlled precisely. The interline nondestructive single-phase diverter can work under a normal power transmission mode and an ice resisting and melting mode, and is simple and reliable to operate.

Description

(1) Technical field [0001] The invention relates to an anti-icing and melting technology for power transmission lines, in particular to a non-destructive single-phase shunt between lines and a design and control method. (2) Background technology [0002] With the development of society and economy, in the environment of increasing power load applications, the requirements for exposed power lines are getting higher and higher. In the cold winter, the lines in many areas will freeze, causing damage to the lines. When the icing exceeds the bearing capacity of the line, serious accidents such as disconnection will occur. Therefore, deicing of power transmission lines in winter is essential and very important. In the prior art, ice melting technology is constantly improving. [0003] The application number is CN201810370549.8 "Self-made thermal conductor and heating equipment embedded with insulating and heat-conducting materials and its realization method", making full use of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/16
CPCH02G7/16
Inventor 李碧雄莫思特
Owner SICHUAN UNIV
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