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A laser-powered high-speed measurement system and method

A technology for laser power supply and measurement system, applied in the direction of measurement, voltage/current isolation, voltage divider, etc. using digital measurement technology, which can solve problems such as low power consumption

Active Publication Date: 2022-03-29
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, considering the limitation of the power supply mode of the system, it is required that the power consumption of the equipment on the high-voltage primary side of the acquisition system should be low

Method used

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  • A laser-powered high-speed measurement system and method
  • A laser-powered high-speed measurement system and method
  • A laser-powered high-speed measurement system and method

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Embodiment Construction

[0020] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 , figure 2 As shown, the present invention provides a laser power supply high-speed measurement system, and the transformer is used to output an analog signal, and the analog signal comes from a primary conductor; the analog signal is also converted into a digital signal by a remote signal acquisition module, and connected into the merging unit, and then connected to the protection device after passing through the merging unit.

[0022] In this embodiment, the transformer is a decoupling fully symmetrical DC shunt and a wide-band DC voltage divider with symmetrically matched resistance and capacitance parameters, and outputs a step signal after being applied once.

[0023] The remote signal acquisition module is located on the primary high-voltage side of the DC system, and is used to convert the analog signal out...

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Abstract

The invention discloses a high-speed measurement system and method for laser power supply. The system comprises a transformer, a remote signal acquisition module and a merging unit. The steps of the method are: the transformer outputs an analog quantity to the remote signal acquisition module; The signal undergoes analog-to-digital conversion, digital processing and electro-optical conversion, and converts the measured analog signal into a digital optical signal for output, which is transmitted to the merging unit; the merging unit forwards the digital signal to the protection device. In this technical scheme, the output signal of the electronic transformer is collected locally by the remote signal collection module based on laser power supply, and the digital signal is transmitted.

Description

technical field [0001] The invention belongs to the field of high-voltage direct current transmission, in particular to a high-speed measurement system and method for laser power supply. Background technique [0002] The DC grid can realize the partition interconnection of multiple AC grids, which is an important solution for building cross-region grid interconnection. The DC current and voltage measurement device is the key equipment to ensure the reliable operation of the grid. The stable operation of the grid depends on the DC current and voltage measurement device. The protection equipment provides fast and accurate primary current and voltage information, and generally requires reliable action within 100μs. Due to the insulation requirements of the insulation platform for the transformer on the high-voltage side of the primary system, all the analog quantities to be measured (current and voltage) need to be converted into digital quantities and sent to the ground. Due t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R15/18G01R15/06G01R15/24G01R19/25
Inventor 朱长银李响汪涛周强刘国伟文继锋胡桂平
Owner NR ELECTRIC CO LTD
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