Power quality monitoring and recording device of power system

Abstract

The present invention provides a power quality monitoring and recording device of power system. An IEC61850 model is unitedly established at the server end according to an IEC61850 standard requirement. A fault recording logic module and a power quality logic module which have a same hardware platform are provided. The system configuration is realized according to IEC61850-6 and a configuration tool which is used independently is formed. The fault recording and power quality are respectively executed with model building to different logic devices according to IEC61850 standard. Not only is the data recording of power system under fault realized, but also the power quality monitoring to the important transformer substation and power consumer of power system is realized. Powerful support is provided for increasing the supplement of high-quality power to the consumer by the power system. The power quality monitoring and recording device of power system according to the invention can be widely used for various occasions of power quality. The software only requires simple configuration according to requirement in project application. The complicated operation is not required. The project application is extraordinary convenient and flexible.

Description

technical field [0001] The invention relates to monitoring and recording, in particular to a power system power quality monitoring and recording device. 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 in the substation can provide timely and accurate guarantee for user decision-making in the data integration and information exchange between IED equipment, but it only sends data to the main station in the event of a fault, and cannot monitor the power quality status of the power system ; The power quality device can monitor the power quality status of the system in real time, but the recorded data is only a steady-state quantity, and the recording frequency is low, which reflects the real situation of the line fault ...

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 existing wave recorder in the substation can provide timely and accurate guarantee for user decision-making in the data integration and information exchange between IED equipment, but it only sends data to the main station in the event of a fault, and cannot monitor the power quality status of the power system ; The power quality device can monitor the power quality status of the system in real time, but the recorded data is only a steady-state quantity, and the recording frequency is low, reflecting the real situation of line faults is not good

At present, there is no device that combines fault recording and power quality with the same hardware platform in accordance with the IEC 61850 standard to realize the monitoring and recording of power quality in the interconnected grid.

Images