A Method of Using Magnetic Ring to Suppress Radio Interference of Power Transmission Line
A radio interference and power transmission line technology, applied in the electronic field, can solve the problems of negative impact on residents' normal life and increased economic costs, and achieve the effect of low cost and great technological innovation
Inactive Publication Date: 2016-04-20
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
[0004] Aiming at the problems mentioned in the background technology that the current radio interference caused by the corona discharge of the high-voltage transmission line increases the economic cost of the transmission line design and operation, as well as the negative impact on the normal life of residents, the present invention proposes an application The Method of Magnetic Ring Suppressing the Radio Interference of Power Transmission Line
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[0033] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.
[0034] A method of using a magnetic ring to suppress radio interference of transmission lines, characterized in that the method specifically includes the following steps:
[0035] Step 1: Determine the section of the line that needs to suppress radio interference:
[0036] According to the relevant standards, calculate the electromagnetic environment index of the transmission line to be designed, analyze the line section exceeding the standard limit, test the radio interference exceeding the standard area in the operating line, and analyze the radio interference characteristics of this area. figure 1 It is a schematic diagram of the radio interference suppression device for the magnetic ring. The line between the two ...
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The invention discloses a method for restraining radio interference of a power transmission line by applying magnetic rings, and belongs to the technical field of electronics. According to the technical scheme, the materials, size specifications and number of the magnetic rings are selected for a high-voltage power transmission line to be designed or a running power transmission line according to the circuit parameters such as running voltage, circuit current, lead parameter and distribution parameter of a circuit with severe radio interference and a radio interference frequency band to be restrained, magnetic rings of different materials and sizes can be constructed into a magnetic ring group, the magnetic rings or the magnetic ring group are / is fixed on an overhead lead by buckling or embedding, and corona current produced by corona discharge of the circuit is absorbed by using impedance of the magnetic rings on a high frequency, so that radio interference is reduced. The method is low in cost, and radio interference is well restrained; meanwhile, the arrangement of the magnetic rings on the circuit has little influence on the normal life of residents, and the method has leading technical innovation and great economic benefit.
Description
technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a method for suppressing radio interference of transmission lines by using a magnetic ring. Background technique [0002] With the increase of the voltage level of the transmission line, the corona effect and radio interference of the line will be significantly enhanced. Transmission line radio interference has become a major constraint in system design and operation. Many UHV lines under construction or planned in my country will pass through high-altitude areas, and the phenomenon of corona discharge is more serious in high-altitude areas. [0003] At present, the impact of the DC line corona effect on the ground radio environment can be reduced to a certain extent by using the method of optimizing the wire selection, but this often leads to a substantial increase in engineering investment, while the improvement of the line radio interference intensity is not o...
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IPC IPC(8): H02G7/00
Inventor 张宏赵志斌王芳
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)