Nuclear phase method for digital transformer substation

Abstract

The invention relates to a nuclear phase method for a digital transformer substation, comprising the following steps: 1) in a digital transformer substation realized in a point-to-point mode, a nuclear phase device accesses high-speed serial communication data from different interval merging units, and sends the received communication data to a personal computer (PC), and the PC randomly selects one phase voltage as a standard and respectively and intuitively inspects the correctness of the amplitude and phase relation of each phase voltage of the same voltage class or different voltage classes, thereby completing secondary nuclear phase in the process of starting the digital transformer substation; and 2) in a digital transformer substation realized in a networking mode, the nuclear phase device accesses Ethernet communication data from different interval merging units by means of an IEC61850 switched network device, and then sends the communication data to the PC, and when carrying out voltage nuclear phase, the PC randomly selects one phase voltage as a standard and respectively inspects the correctness of the amplitude and phase relation of voltages of the same voltage class or different voltage classes.

Description

technical field [0001] The invention relates to the technical field of digital substations, in particular to a nuclear phase method for digital substations. Background technique [0002] Traditional substations use different communication standards and information models for various functions. Cables are used to transmit analog signals and level signals between secondary equipment and primary equipment. Various functions need to build their own information collection, transmission and execution systems, increasing Plant substation complexity and cost. [0003] A digital substation refers to a substation whose information collection, transmission, processing, and output processes are completely digitized. The basic characteristics of the substation are intelligent equipment, communication networks, and automated operation management. [0004] Features of digital substation: 1) Intelligent primary equipment adopts electronic transformers with digital output, intelligent switc...

AI Technical Summary

Problems solved by technology

In digital substations, because most of them use digital current and voltage transformers, traditional digital nuclear phase equipment cannot normally obtain relevant detection information, which is no longer suitable for the development of substations. With the development of electronic technology and communication technology, high-speed point-to-point Serial communication and network communication have become the development direction of digital substations, so a new type of digital secondary nuclear phase device that supports the above various communication protocols is particularly important

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