IEC61850-based power quality transient data transmission method
A data transmission method and power quality technology, which is applied in the field of transient data transmission based on IEC61850 power quality, can solve the problems of insufficient and unfavorable transient data transmission and management, and achieve the effect of persistent storage and fast query service
Active Publication Date: 2013-04-10
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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[0003] As more and more attention is paid to the collection and transmission of power quality data, the IEC61850 communication protocol is becoming more and more important as a unified communication standard. Based on the file transmission method, it is not conducive to the transmission and management of transient data; this invention will describe in detail the storage, transmission and management of transient events in the terminal based on the IEC61850 protocol, which provides great convenience for the transmission and management of transient events
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[0036] The present invention provides a transient event model based on the definition of the IEC61850 protocol, which realizes the storage and transmission of transient data in the power quality acquisition terminal; the transient event records are stored in the first-in-first-out mode for steady-state events on the terminal, and Transient events mainly include voltage swell, voltage sag, voltage interruption, etc.; transient event records mainly include three-phase voltage recording, three-phase current recording, three-phase voltage RMS fluctuation sequence, three-phase current RMS fluctuation sequence, etc.; the transmission of transient events mainly adopts the LOG model of the IEC61850 protocol, and the transient events are written into the LOG model as a record, and the LOG model is the storage structure on the terminal; the storage structure designed by the present invention has advanced storage and access functions; such as figure 1 As shown, the LOG service mainly inc...
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The invention provides an IEC61850-protocol-based power quality transient data transmission method. In the method, the function of realizing first in first out storage of power quality transient events on a power quality acquisition terminal, and the function of completely realizing the transmission of the transient events to a front-end processor by utilizing IEC61850 log service function based on an ICE61850 transient data model design are mainly realized. The method mainly comprises the following steps of: (1) transient event model definition, namely, defining a model for realizing the storage and reporting of transient data on the power quality acquisition terminal; (2) the establishment of a storage structure on the terminal, namely, storing transient event records on the terminal intransient event first in first out way, and writing the transient events into a LOG model as a record, wherein the transmission of the transient events mainly adopts the IEC61850-protocol-based LOG model, and the storage structure designed by the invention has first in and first out storage and accessing functions; and (3) transient event query service, wherein the transient event query service mainly comprises query log reading service according to time and query log reading service according to identifier (ID).
Description
technical field [0001] The invention relates to a transient data communication method for power quality monitoring data in a power system, more precisely, a transient data transmission method based on IEC61850 power quality. Background technique [0002] With the rapid development of my country's economy and the development of high-tech industries, many power electronic devices and electrical equipment are more sensitive to power quality, and the economic losses caused by the influence of power quality are becoming more and more prominent. More enterprises and power users are concerned about the quality of power supply. The requirements are getting higher and higher, so the collection, transmission and management of power quality are becoming more and more important. Voltage transient data will be more important in power quality indicators. Because transient events include wave recording data, the storage capacity is large, and transmission is difficult. Fast and reliable tra...
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IPC IPC(8): H04L29/08H04L29/06G06F17/30
Inventor 余晓鹏李琼林杜习周张晓东赵伟杰刘长树
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST