Power supply method and device for online monitoring system of power transmission line
A technology of transmission lines and monitoring systems, applied in circuit devices, battery circuit devices, transportation and packaging, etc., which can solve problems such as complex design, complex structure, and lack of versatility
Inactive Publication Date: 2016-08-10
湖南省湘电试验研究院有限公司
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The Chinese patent document with the publication number CN204794806U discloses a power supply system in which wind generators and photovoltaic modules are jointly powered. Using the principle of electromagnetic induction to realize a stable power supply device for the on-line monitoring system of the transmission line, but the design of the device is complex, the power supply efficiency is low, and it is not universal
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[0025] Such as figure 1 As shown, the steps of the power supply method of the transmission line online monitoring system in this embodiment include:
[0026] 1) Install the wind power generation module 1 and the solar photovoltaic module 2 on the tower of the transmission line in advance, and provide the DC power supply for the transmission line online monitoring system through the dual-input DC / DC converter 4 through the wind power generation module 1 and the solar photovoltaic module 2, And the output end of the dual-input DC / DC converter 4 provides AC power for the transmission line online monitoring system through the inverter 6, and connects the output end of the dual-input DC / DC converter 4 to the power storage unit 5;
[0027] 2) Detect the current wind speed signal and light signal;
[0028] 3) Judging whether the wind speed signal is greater than the preset wind speed signal threshold, if the wind speed signal is greater than the preset wind speed signal threshold, t...
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The invention discloses a power supply method and device for an online monitoring system of a power transmission line. The power supply method comprises the following steps: installing and connecting a power supply circuit, detecting current wind speed signal and light signal and controlling the open states of a wind power generation component and a solar photovoltaic module; and calculating a power supply load, controlling the charge-discharge state of a power storage unit according to the comparison result of the power supply load and a load, and achieving wind-solar complementary uninterruptible power supply for the online monitoring system of the power transmission line. The power supply device comprises the wind power generation component, the solar photovoltaic module, a wind-solar complementary control unit, a double-input DC / DC converter, the power storage unit and an inverter. By the power supply method and device, a safe, reliable and stable uninterruptible power supply can be provided for the online monitoring system of the power transmission line; and sustained and stable operation of the online monitoring system of the power transmission line is ensured.
Description
technical field [0001] The invention relates to the technical field of electric power engineering, in particular to a power supply method and device for an on-line monitoring system of a power transmission line, which are used to provide an uninterrupted power supply to the on-line monitoring system for a power transmission line. Background technique [0002] The transmission line remote monitoring system utilizes real-time image data acquisition compression and encoding and decoding technology, ultra-low power consumption technology, 3G wireless public network data communication technology, etc., to conduct all-weather real-time monitoring of the operation status of high-voltage transmission lines operating in harsh environments , can effectively prevent electrical accidents caused by factors such as building construction (dangerous points) around the line, icing on the wires, wind swaying, hanging foreign objects on the wires, and stolen tower materials. However, the ultra...
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IPC IPC(8): H02J7/34H02J7/35
CPCH02J7/34H02J7/35Y02E10/56Y02E10/76
Inventor 任章鳌黄福勇郝剑波闫迎由凯晏桂林徐波
Owner 湖南省湘电试验研究院有限公司