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Multi-channel multi-range frequency response test signal acquisition device and acquisition method

A signal acquisition, multi-range technology, applied in the direction of measuring devices, frequency measuring devices, motor generator testing, etc., can solve the problems of recording accuracy drop, recording range mismatch, etc., to achieve the effect of a complete range

Pending Publication Date: 2020-10-30
GUIZHOU POWER GRID CO LTD
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a multi-channel and multi-range frequency response test signal acquisition device and acquisition method to solve the problem of external Components are used for voltage and current conversion measurement, and the recording range does not match, resulting in a decrease in recording accuracy and other issues

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  • Multi-channel multi-range frequency response test signal acquisition device and acquisition method

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Embodiment Construction

[0018] A multi-channel and multi-range frequency response test signal acquisition device and acquisition method include 24 voltage and current measurement and acquisition channels, one frequency signal measurement and acquisition channel, and one rotational speed signal measurement and acquisition channel. After the data is collected, it is transmitted to the computer through the USB interface after the A / D conversion module, and has a 24V voltage output channel.

[0019] There are 24 channels for voltage and current signal measurement and collection, 1 channel for frequency signal measurement and collection, and 1 channel for speed signal measurement and collection, which meet all the requirements of frequency response test.

[0020] Voltage and current are three measurement and acquisition terminals, which are red (voltage), blue (current) and black (common terminal GND). The black terminal is the common terminal. Connect current terminals and common terminals when collectin...

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Abstract

The invention discloses a multi-channel multi-range frequency response test signal acquisition device and acquisition method. The device comprises an acquisition channel which is connected with an ADconversion module through a wire, wherein the AD conversion module is connected with a USB interface; the USB interface is connected with a monitoring terminal; the acquisition channel comprises a voltage acquisition channel, a current acquisition channel, a frequency acquisition channel and a rotating speed acquisition channel; an acquisition terminal of the acquisition channel is connected to aprime mover signal output end, and the acquisition device converts an acquired analog quantity signal into a digital quantity signal through the AD module and then sends the digital quantity signal tothe monitoring terminal through the USB interface for signal processing. The problems that when a frequency response test is carried out through a universal recorder in the prior art, external components need to be connected to carry out voltage and current conversion measurement respectively, and the recording precision is reduced due to the fact that recording ranges are not matched are solved.

Description

technical field [0001] The invention belongs to the technical field of power generation equipment testing, and in particular relates to a multi-channel and multi-range frequency response test signal acquisition device and acquisition method. Background technique [0002] With the rapid development of the electric power industry, the capacity of the power grid has increased sharply. On the basis of traditional energy sources, large-scale new energy sources have been integrated into the power grid, which has put the stability of the power grid in danger. This has made problems such as primary frequency regulation increasingly prominent. Ensuring safe and reliable power supply and ensuring power quality are the basic requirements for the operation of the power system. When a unit fails and shuts down, it will have a great impact on the power grid, and there will be large frequency fluctuations in the frequency of the power grid. The frequency fluctuation exceeds a certain When ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R19/25G01R23/02G01P3/00
CPCG01R31/34G01R19/25G01R23/02G01P3/00
Inventor 文贤馗钟晶亮邓彤天李翔刘石刘志刚魏增福张世海王文强王锁斌姜延灿田今朝熊浩然
Owner GUIZHOU POWER GRID CO LTD
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