Resonance deicing device and deicing method for electric power facilities
A technology of power facilities and icing, applied in the installation of cables, overhead lines/cable equipment, electrical components, etc.
Inactive Publication Date: 2015-12-30
SICHUAN UNIV
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Problems solved by technology
Economic loss after power outage and personal safety of deicing personnel during operation are serious issues
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[0017] When the icing phenomenon occurs, the natural frequency of the actual icing is obtained through the induction device installed on the natural frequency collector 1 . After filtering and amplifying the obtained ice-covered natural frequency signal through the signal filter amplifier 2, it is transmitted to the central computer controller 3 along the signal line. Central computer controller 3 starts the frequency converter 5 with relay function on the one hand according to the natural frequency of the ice layer fed back, so that the electric energy accumulated by the storage battery is released to promote the vibration motor 4 to start working. On the other hand, the frequency converter 5 with relay function is adjusted to make the natural frequency of the vibrating motor consistent with the natural frequency of the icing, so that the icing resonates, breaks, and falls off from the power facility.
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The invention discloses a resonance deicing device and deicing method for electric power facilities, and aims to eliminate harm of ice covering the electric power facilities according to the resonance principle. The resonance deicing device comprises three parts such as a detection module, an electric energy supply module and a deicing module. A pressure sensor and a temperature sensor, which are mounted on a detection device, are used for judging whether an ice cover exists or not; an intrinsic frequency collector is adopted to obtain the intrinsic frequency of the ice cover; a controller is used for controlling the start of a vibrating motor according to signals fed back by a detector; the vibration frequency of the vibrating motor is adjusted through a frequency converter, so as to ensure that the vibration frequency of the vibrating motor is in accordance with the intrinsic frequency of the ice cover. An ice block is enabled to send resonant vibration, so as to eliminate harm of the ice cover. Electric energy required by the whole device is provided by a photovoltaic storage battery; a rectifying component and a filtering component are used for providing pure electric energy to the device.
Description
technical field [0001] The device of the invention relates to a deicing device and a deicing method for electric facilities, and is especially suitable for the deicing device and method for high-voltage transmission lines Background technique [0002] The sound and rapid development of the national economy requires a safe and reliable power supply, and a reliable power supply requires a strong power grid as a guarantee. my country has a vast territory and complex topography, with mountains and hills accounting for 43%, plateaus accounting for 26%, and basins accounting for 19%. Plains account for only 12%. Most UHV transmission lines will pass through areas with extremely harsh and complex climate conditions such as pollution, high altitude, ice and snow, and ice coating has become a major hidden danger that threatens the safe operation of transmission lines. [0003] From January to February 2008, a severe ice disaster occurred in the south of my country. In this ice di...
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IPC IPC(8): H02G7/16H02G1/02
Inventor 张程嘉刘定乾刘友波
Owner SICHUAN UNIV