Power quality and synchronized phasor monitoring device for power system

Abstract

The invention discloses a power quality and synchronized phasor monitoring device for a power system, which is characterized in that: IEC 61850 models are uniformly established at a server according to IEC 61850 standards, and a power quality logic unit and a PMU logic unit with an identical hardware platform are arranged; and according to IEC 61850-6, system configuration is realized and independently used configuration tools are formed. In the invention, power quality monitoring and synchronized phasor monitoring are modeled as different logic equipment according to the IEC 61850 standards respectively, thus not only the power quality of a transformer substation of a power system and a power consumer is continuously measured and recorded, but also the synchronized phasor of the transformer substation and a power plant of the power system is continuously measured and recorded to further construct a power system real-time dynamic monitoring system so as to enhance the dynamic, safe and stable monitoring and control over the power system and improve the capacity of a scheduling mechanism to accurately master the running state of the system. The device in the invention can be widely applied to various power quality monitoring and synchronized phasor measurement occasions.

Description

technical field [0001] The invention relates to power quality monitoring and synchronized phasor monitoring, in particular to a power system power quality monitoring and synchronized phasor monitoring 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 power quality monitoring device in the substation can monitor the power quality status of the system in real time, prevent power pollution, improve power supply quality, and protect the safe and stable operation of the power grid and equipment. The synchrophasor measurement unit (Phasor Measurement Unit, referred to as PMU) with the same hardware platform can monitor system operation status in real time, dynamic monitoring, state estimation, prediction and control of transient ...

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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

However, there is currently no device that combines the above two devices with unified modeling according to the IEC 61850 standard to perform power quality monitoring and synchrophasor monitoring on the power grid.

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