Digital synthesis protection observe and control unit of multipath operation mode

Abstract

The invention discloses a digital integrated protection measurement and control unit with multi-path operation mode. The unit has characteristics that the unit includes a plurality of IED function units. The IED function units are independent and information shared, can realize pooling function, relay protective function, intelligent operation function as a whole and have functions of measuring, controlling, recording wave, system analysis; various internet bus connected with various IED function unit for realizing communication function; an intelligent operating unit that can control internet communication, and can collect states of skip, piece on, piece after, remote of switch, also can collect intelligent operation unit of a remote message defined by user; the remote message defined by user; a user protective unit that can read corresponding information from the IED function unit, process logic calculation, judge and result, and sends various corresponding information to the IED function unit. The digital integrated protection measurement and control unit with multi-path operation mode can realize resource information sharing rapidly without needing network communication, and has low cable amount and simple structure.

Description

technical field [0001] The invention relates to a digital comprehensive protection measurement and control unit of a substation, which belongs to the technical field of electric engineering. Background technique [0002] In recent years, the rapid development of computer technology, information processing technology and network communication technology has had a huge impact on the substation automation system. With the gradual formation of UHV, large-capacity, and ultra-large system grids, higher and more urgent requirements are put forward for grid security, stability, reliability, control, and information interaction. [0003] The existing typical substation automation system is generally divided into three layers, the lowest layer is the measurement, control and protection devices, the middle layer is the communication control unit, and the upper layer is the background software system. The entire information processing process is that the measurement, control and protec...

AI Technical Summary

Problems solved by technology

[0004] 1) The information interaction between the primary and secondary systems still continues the traditional cable connection mode, which is costly and inconvenient for construction and maintenance

[0005] 2) The data collection part of the secondary system is largely repeated, wasting resources

[0006] 3) Insufficient information standardization and low degree of information sharing

Multiple systems coexist, and it is difficult to interconnect and interoperate between devices and between devices and systems, forming information islands, and it is difficult for information to be comprehensively applied

[0007] 4) In the event of an accident, there will be a large number of event alarm information, lack of effective filtering mechanism, and interfere with the correct judgment of the fault by the operator on duty

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