Steady state oscillograph for power system

Abstract

The invention discloses a steady state oscillograph for a power system. Uniform modeling is implemented at a server side according to the requirements of IEC61850 standard; the server is simultaneously communicated with a plurality of clients through an Ethernet; an acquisition part receives an analog signal or a digital signal to implement real-time operation; system configuration is realized according to IEC61850-6, and an independently used configuration tool is formed; the steady state oscillograph is characterized in that a steady state oscillograph logical module is arranged for continuously recording the running data of the power system; disturbance marks are arranged to generate mark event documents to continuously record the fault data of the power system in case of faults and continuously measuring and recording the power quality of the power system and the sampling data of each channel in case of non faults. The steady state oscillograph for the power system satisfies the integrated requirements of real-time monitoring, transient state recording and steady state recording of the power system under an IEC61850 framework, and can be broadly applied to various power systemmonitoring occasions. When the steady state oscillograph for the power system is applied in engineering, only simple configuration on software is needed according to demands, and any complex operation is not needed.

Description

technical field [0001] The invention relates to a detection or detection device for electrical performance faults in cables, transmission lines or networks, in particular to a power system steady-state wave recording device. Background technique [0002] The applicant's prior patent CN101515015B announced "A Power System Power Quality Monitoring and Recording Device". According to the IEC 61850 standard, fault recording and power quality were modeled as different logic devices, which not only realized power system fault conditions The data records below also realize the power quality monitoring of important substations and power users in the power system. It adopts the client-server architecture, and the management machine is the client. The main features include: unified establishment of The IEC 61850 model is equipped with a fault recording logic module and a power quality logic module with the same hardware platform. The fault recording logic module performs start-up judg...

AI Technical Summary

Problems solved by technology

Although the existing portable oscilloscope can record faults timely and accurately when the user is doing power tests, it cannot monitor the power quality parameters of the power system; the power quality monitoring device can monitor the power quality status of the system in real time, but the recorded The data is limited to power quality related indicators, and the recording frequency is low, reflecting the real situation of line faults is not good

At present, there is no steady-state wave recording device that can be implemented simultaneously with the fault wave recording module and power quality module on the same hardware platform, and can be modeled in accordance with the IEC 61850 standard to realize steady-state wave recording, power quality monitoring, and fault recording.

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