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Synchronous trigger device and method for electromagnetic transient data collection

A technology of synchronous triggering and data acquisition, which is applied in the direction of measuring devices, parts of electrical measuring instruments, measuring electronics, etc., to achieve the effects of improving generality, reducing synchronization errors, and improving synchronization and accuracy

Inactive Publication Date: 2018-12-07
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, very high requirements have been put forward for the trigger synchronization, electromagnetic shock resistance and high trigger reliability of multi-parameter data acquisition. At present, there is no synchronous trigger device and trigger method that can meet the requirements for strong transient electromagnetic environments. An electromagnetic transient multi-parameter data acquisition synchronous trigger device and trigger method

Method used

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  • Synchronous trigger device and method for electromagnetic transient data collection
  • Synchronous trigger device and method for electromagnetic transient data collection
  • Synchronous trigger device and method for electromagnetic transient data collection

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Embodiment

[0058] Please refer to figure 2 , the embodiment of the present invention adopts the circuit breaker to simulate disturbance source switching, throws 330KV voltage to simulate the actual transient electromagnetic environment, and simultaneously collects four parameter waveform data of voltage, current, electric field and magnetic field in the transient electromagnetic environment. The synchronous trigger device outputs 2 channels of synchronous trigger optical signals. 2 sets of photoelectric converters, 2 sets of two-channel data acquisition and storage devices. The synchronous trigger device has 5-channel optical synchronous pulse signal output. The high-speed comparison drive reference voltage in the synchronous trigger device is adjustable. 2 sets of photoelectric converters, 2 sets of two-channel data acquisition and storage equipment are placed in 2 shielded tanks, placed in different positions in the transient electromagnetic environment, and the trigger signal outpu...

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Abstract

The present invention discloses a synchronous trigger device and method for electromagnetic transient data collection. The device comprises a shielding housing, an operational amplifier module, a power module, a high-speed comparer and an optical pulse generator; the operational amplifier module, the power module, the high-speed comparer and the optical pulse generator are arranged in the shielding housing; a signal output end of the operational amplifier module is connected with a signal receiving end of the high-speed comparer; a signal output end of the high-speed comparer is connected witha signal receiving end of the optical pulse generator, and a signal output end of the optical pulse generator is configured to emit synchronous trigger signals; and the power module is connected withthe operational amplifier module and the optical pulse generator. The synchronous trigger device can be operated in a high transient electromagnetic interference environment; and the synchronous trigger device and method can achieve nanosecond reliable synchronous trigger with high sensitivity.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic compatibility communication, and in particular relates to a synchronous triggering device and a triggering method for collecting electromagnetic transient data. Background technique [0002] With the rapid development of the power industry and the development plan of smart grid and UHV technology, the voltage level of substations is continuously increasing, and there are more and more intelligent equipment in the power grid. Weak current equipment based on communication technology, microelectronic detection technology and computer control technology It is more and more widely used in substations. Electromagnetic compatibility is no longer just a technical issue related to electrical utilization, but has become a social and economic issue of great significance related to social security and stability and quality assurance of the living environment. [0003] China's smart grid is defined as...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R1/02
CPCG01R1/02G01R31/001
Inventor 成林卢江平刘健张诚吴经锋郭安祥石团结刘凌蒲路任双赞刘子瑞薛军吴子豪王辰曦丁彬杨传凯
Owner STATE GRID CORP OF CHINA
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