On-line monitoring device and monitoring method for wire breeze vibration based on angle method
A monitoring device and angle method technology, which is used in measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as the inability to directly measure the dynamic bending strain value of wires, and the online monitoring of the influence of breeze vibration on overhead transmission lines.
Active Publication Date: 2019-03-01
上海国缆检测股份有限公司 +1
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Problems solved by technology
[0003] At present, in the process of evaluating the impact of conductor breeze measurement on fatigue damage of overhead transmission lines, the dynamic bending strain of conductors is a main parameter, but various monitoring devices or monitoring methods in the prior art cannot directly measure the dynamic bending strain value of conductors , resulting in the inability to well monitor the influence of breeze vibration on overhead transmission lines online
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[0048] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0049] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper"...
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The invention provides an online monitoring device for breeze vibration of conductors based on the angle method, which includes a housing fixed on the conductor under test and an angle sensor. The distance between the angle sensor and the outlet of the conductor clamp is x. b , the housing is provided with an inner cavity, and the inner cavity is provided with a control module, a communication module and a power supply module. The communication module and the power supply module are connected to the control module. The control module is connected to the control calculation module of the angle sensor. connected. The wire breeze vibration online monitoring device directly measures the vibration angle of the measured wire at the measured point through the angle sensor. At the same time, the angle sensor converts the vibration angle into relative amplitude and transmits the relative amplitude value to the control module, which then automatically The dynamic bending strain value of the measured conductor at the outlet of the wire clamp is calculated. Therefore, the conductor breeze vibration online monitoring device can directly and accurately monitor the dynamic bending strain value of the measured conductor, in order to evaluate the fatigue damage of overhead transmission lines caused by breeze vibration. Provide a strong basis for the impact.
Description
technical field [0001] The invention relates to the field of on-line monitoring of overhead transmission lines, in particular to an on-line monitoring device and method for breeze vibration of wires based on an angle method. Background technique [0002] With the rapid development of modern technology and the accumulation of practical experience in power construction, people have learned that various types of conductor vibration can occur on transmission lines. According to the causes of conductor vibration and the form of conductor vibration, conductor vibration phenomena can be divided into There are several types: breeze vibration, sub-gap vibration, galloping, off-ice jumping, lateral impact, corona galloping, short-circuit vibration and turbulent vibration, etc. Among them, in the field of overhead transmission lines, the phenomenon of breeze vibration occurs most frequently, and the fatigue and fracture of wires caused by breeze vibration is a major threat to the safe ...
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IPC IPC(8): G01H17/00
Inventor 黄国飞袁辉党朋王煦张大义秦凯
Owner 上海国缆检测股份有限公司