Power quality monitoring and recording device of power system
A power quality monitoring and recording device technology, applied in the direction of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve the problems of inability to monitor the power quality status of the power system, lack of information exchange and sharing, and low recording frequency. Convenient and flexible effects for engineering applications
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[0050] The present invention will be further described below with reference to the accompanying drawings and in conjunction with specific embodiments.
[0051] figure 1It is a system structure diagram of a specific embodiment of the present invention, in which two signal input methods are given: merging unit + GOOSE network, or traditional PT / CT transmission signal + switch hard node.
[0052] In this specific embodiment, the IEC 61850 model is uniformly established on the server side in accordance with the requirements of the IEC 61850 standard, and a fault recording logic module and a power quality logic module with the same hardware platform are provided. The fault recording logic module performs startup judgment according to the calculation results. When starting up, fault files are generated, transient faults and dynamic data are recorded, and offline analysis of wave recording data is completed; the power quality logic module realizes voltage, three-phase unbalance, freq...
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