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A kind of signal acquisition method for intelligent substation

A smart substation and signal acquisition technology, applied in general control systems, instruments, computer control, etc., can solve the problems of false alarm signals, unscreened, device malfunctions, etc., to reduce the number of uploads, reduce signal false alarms and The probability of device malfunction and the effect of ensuring reliability

Inactive Publication Date: 2017-10-31
XJ ELECTRIC +1
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a signal acquisition method for smart substations to solve the problem that the traditional signal acquisition method has not been screened, the number of signal transmissions is large, and it may cause false alarms of alarm signals, and even cause internal malfunctions of the device.

Method used

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  • A kind of signal acquisition method for intelligent substation
  • A kind of signal acquisition method for intelligent substation
  • A kind of signal acquisition method for intelligent substation

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Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] The present invention provides a signal collection method for an intelligent substation. The basic scheme is: within a set time period, collect signals with a set collection cycle, compare all the collected signals, and if there is no sudden change signal in the signal, Then send the corresponding signal value; if there is a sudden change in the signal, it will not be sent.

[0016] Specifically, a substrate implementation manner is provided below, taking the application of the present invention to an FPGA-based signal acquisition system as an example.

[0017] First introduce the hardware based part.

[0018] The FPGA signal acquisition system includes a resistance-capacitance matching module for converting the switch signal into a level signal, a photocoupler for converting the level signal into a TTL level signal, an FPGA chip; a resistance-capacit...

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Abstract

The invention relates to a signal collecting method for an intelligent substation. The signal collecting method is characterized in that in a set time cycle NT, signals are collected in a set collecting cycle NT / M, all the M collected signals are compared, corresponding signal values are uploaded if jump signals do not appear in the signals, and the corresponding signal values are not uploaded if the jump signals appear in the signals.

Description

technical field [0001] The invention relates to a signal acquisition method for an intelligent substation, belonging to the technical field of electric power system automation. Background technique [0002] With the development of smart substations, the environment in the substation is extremely complex, including the opening and closing of the switch, the action of the relay, and the conversation of the walkie-talkie, which can generate electromagnetic interference, produce spikes or glitches on the displacement level, and affect the collection of internal signals of the product. The accuracy of the product may lead to false alarms of product signals. Moreover, the traditional signal collection method collects and transmits all signals without screening the collected signals, which seriously affects the reliability of signal collection. The complex substation environment puts forward higher requirements on the anti-interference ability and data reliability of the merging un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/2612
Inventor 朱建斌胡彦民周水斌任红旭赵应兵于翠欣刘晓霞马仪成史会平
Owner XJ ELECTRIC
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