Power system transmission line parameter synchronic measurement and recording device

Abstract

The invention provides a power system transmission line parameter synchronic measurement and recording device. An IEC61850 model is uniformly established on a server end according to IEC61850 standard and a fault wave-recording logic model and a transmission line parameter measurement logic module with the same hardware platform are set on the server end and the system configuration is realized according to IEC61850-6 and an independent used configuration tool is formed. The fault wave-recording and transmission line parameter measurements respectively model different logic devices according to IEC61850 standard, namely the data record is realized when the power system is in failure and the synchro measurement of the power system transmission line parameters is realized, thereby solving the problem that the data, parameter read by manpower out-of-step for many times are not accurate in power failure. The accuracy of the line parameter is increased. The power system transmission line parameter synchronic measurement and recording device can be widely used for various application fields such as line wave recording, main-change wave recording, set wave recording, and transmission line parameter synchro measurement.

Description

technical field [0001] The invention relates to monitoring and recording, in particular to a device for synchronous measurement and recording of transmission line parameters in a power system. Background technique [0002] In 2007, China formally adopted IEC 61850 as the power industry standard, and began to change the current situation of repeated data collection of secondary equipment, lack of data integration and processing, and lack of information exchange and sharing. The existing wave recorder can provide timely and accurate guarantee for user decision-making in the data integration and information exchange between IED devices, but it only sends data analysis to the master station in the event of a fault, and cannot perform synchronous measurement of power system transmission line parameters . The existing line parameter measurement method is blackout measurement, that is, the measured line must be powered off and disconnected from the grid, and the positive sequence ...

AI Technical Summary

Problems solved by technology

[0002] In 2007, China officially adopted IEC 61850 as the power industry standard, and started to change the status quo of repeated data collection of secondary equipment, lack of data integration and processing, and lack of information exchange and sharing

The manual workload is large, which affects the normal load power supply and the optimal distribution of the power flow. There are also disadvantages such as heavy measuring equipment, cumbersome operations, and time-consuming and labor-intensive operations.

Especially in the disconnection, grounding, closing and many operations of the line before and after the measurement, there are hidden dangers to the safety of the staff and electrical equipment. Moreover, the two ends of the line and the dispatching are generally connected by radio during the measurement, and the reliability is relatively high. Poor, easy to cause mistakes in coordination

At present, there is no unified modeling of fault recording and transmission line parameter synchronous measurement with the same hardware platform according to the IEC 61850 standard, so as to realize the synchronous measurement and recording of transmission line parameters of the interconnected grid

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