Voltage measuring device, voltage measuring method and storage medium
A voltage measurement and voltage technology, which is applied in the direction of measuring devices, measuring electrical variables, and only measuring voltage, etc., can solve the problems of bulky voltage transformers, low voltage measurement efficiency, low safety, etc., and avoid wiring and disconnecting work , Improving the efficiency of voltage measurement and improving the effect of safety
Active Publication Date: 2022-04-08
CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD +1
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Problems solved by technology
[0004] However, the existing voltage measurement method requires wiring and disconnection operations, and the voltage transformer is bulky and difficult to install, resulting in low voltage measurement efficiency, which may also cause insulation damage to the line to be tested, so it is relatively safe. Low
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[0057] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.
[0058] The voltage measurement device provided by the application is applicable to the technical field of power system measurement, and is used for voltage detection of the power system. The voltage measurement device in this embodiment can realize non-contact voltage measurement, improve the efficiency and safety of voltage detection, and improve the accuracy of voltage detection.
[0059] In the prior art, for the voltage detection of the transmission line of the power system, the contact voltage measurement method is usually used, that is, it is necessary to connect the probe of the vol...
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The present application relates to a voltage measuring device, a voltage measuring method and a storage medium. The voltage measuring device includes a probe and a measuring unit, and the measuring unit includes a measuring capacitor and a processor, wherein the probe is movably sleeved on the outer insulating surface of a direct current transmission line , the surface of the probe opposite to the DC transmission line is provided with a metal electrode, a coupling capacitance is generated between the metal electrode and the DC transmission line, and the DC transmission line establishes an electrical connection with the measurement capacitance through the coupling capacitance; the processor is connected with the measurement capacitance, and the To input a reference voltage signal to the measuring capacitor, determine the output voltage waveform of the measuring capacitor, and determine the voltage of the DC transmission line according to the output voltage waveform; wherein, the output voltage waveform includes the DC voltage component under the action of the DC transmission line, and the reference voltage signal Under the AC voltage component; it can realize the voltage detection of the non-contact DC transmission line, and improve the voltage detection efficiency.
Description
technical field [0001] The present application relates to the technical field of power system measurement, in particular to a voltage measurement device, a voltage measurement method and a storage medium. Background technique [0002] In order to ensure the normal operation of the power system, it is usually necessary to detect the voltage and current of the transmission line of the power system to ensure the stable operation of the power system or early warning of faults. [0003] In the traditional technology, most of the voltage transformers are used to detect the voltage of the transmission line. Specifically, in the case of power failure, the insulation layer at the reserved node of the line to be tested is removed, and the primary side of the voltage transformer is connected to the The wires inside the insulating layer are connected. After the power is applied, the voltage of the line to be tested is calculated by measuring the voltage on the secondary side of the volt...
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IPC IPC(8): G01R19/00
CPCG01R19/0084
Inventor 骆柏锋李鹏尹旭张佳明田兵刘仲王志明孙宏棣吕前程陈仁泽李立浧莫枝阅
Owner CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD