System and method for remotely monitoring transient-state quantity and steady-state analog quantity of electric power facility device

Abstract

The invention discloses a system and method for remotely monitoring the transient-state quantity and the steady-state analog quantity of an electric power facility device. The system comprises an ARM processor, a data memory, a power circuit and a digital signal processor, wherein the power circuit is respectively connected with the ARM processor and the digital signal processor, the data memory is respectively connected with the ARM processor and the digital signal processor, and the ARM processor is connected with the digital signal processor. The system further comprises a wave recording processing circuit, wherein the wave recording processing circuit is connected with the digital signal processor, and the wave recording processing circuit comprises a wave recording signal processing circuit body and a wave recording machine. The system further comprises a background monitoring center and a local area network, wherein the background monitoring center is connected with the ARM processor through the local area network. According to the system and method for remotely monitoring the transient-state quantity and the steady-state analog quantity of the electric power facility device, a fault source and the fault cause of the facility device in the electric power system can be accurately and effectively judged, and the running state can be conveniently, rapidly, scientifically, reasonably, accurately and effectively monitored and judged.

Description

technical field [0001] The invention relates to the field of remote communication in electric power systems, in particular to a system and a method for remotely monitoring transient and steady-state analog quantities of electric facility equipment. Background technique [0002] The operation of the power system depends on the joint operation of a series of facilities and equipment such as transmission lines, transformers, intelligent controllers, power stations, and substations. The normal, stable and effective operation of various facilities and equipment can ensure the safe operation of the power system. During the operation of various facilities and equipment, some information such as transient quantities and steady-state analog quantities will be generated, and the raw data monitored are usually transient quantities such as frequent fluctuations in voltage and current, and voltage and current that remain within a certain range for a long time. The information of the stea...

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Problems solved by technology

[0002] The operation of the power system depends on the joint operation of a series of facilities and equipment such as transmission lines, transformers, intelligent controllers, power stations, and substations. The normal, stable and effective operation of various facilities and equipment can ensure the safe operation of the power system. During the operation of various facilities and equipment, some information such as transient quantities and steady-state analog quantities will be generated, and the raw data monitored are usually transient quantities such as voltage and current fluctuating frequently, voltage and current kept within a certain range for a long time The information of the steady-state analog quantity, and the existing front-end data processing systems all use 51 single-chip series general-purpose microprocessors, but the general-purpose microprocessors connected with 51 single-chip computers are difficult to adapt to the requirements of real-time signal processing in terms of calculation speed, and cannot be large Processing a variety of data on a large scale cannot accurately determine the source and cause of the fault, and it cannot be stable and large-scale in the background transmission of processing data, and thus cannot effectively realize intelligence. At the same time, the data collection tool for front-end monitoring Or the circuit basically uses voltage sensors and current sensors to monitor and collect transient quantities and steady-state analog quantities. In the monitoring and collection of transient quantities and steady-state analog quantities, effective, stable and real-time combination of various electric energy data cannot be achieved. Analysis and monitoring, so that the operating status of facilities and equipment cannot be accurately judged

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