Special data interaction method and device for intelligent substation

A technology for smart substations and dedicated data, applied in circuit devices, data exchange networks, electrical components, etc., can solve problems that are difficult to achieve, affect the safe and stable operation of substations, and power outages for switches, and achieve the effect of solving separation problems.

Active Publication Date: 2015-03-18
GUIZHOU POWER GRID CO LTD
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  • Abstract
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Problems solved by technology

Its problem is the dependence on the clock synchronization system and the reliability of the network switching equipment. With the breakthrough of these two technologies, the application of the combined network mode smart substation in the smart grid will be more and more, so that Become the mainstream mode of smart substation
If it is necessary to realize the GOOSE transmission of the protection and intelligent terminal, and the bus MU does not stop working, it is difficult to achieve;
[0008] 3) The device and signal isolation and reorganization can be carried out b

Method used

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  • Special data interaction method and device for intelligent substation
  • Special data interaction method and device for intelligent substation

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[0033] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] figure 1 It is the line protection connection diagram of the smart substation in the SMV / GOOSE combined networking mode. Each IED device adopts optical IRIG-B code or electrical IRIG-B code for timing (not shown in the figure), line merging unit (MU) 103 output sampling Value control block SMV1, bus merging unit (MU) 104 output sampling value control block SMV2, SMV1 and SMV2 are connected to the process layer switch 102, the intelligent terminal 104 is connected to the process layer switch 102, through the process layer switch 102 to the line protection device 101 Send the GOOSE signal of the position of the circuit breaker and receive the trip GOOSE signal of the line protection device 101. The process layer switch 102 and t...

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Abstract

The invention relates to a special data interaction method and device for an intelligent substation. According to the special data interaction method for the intelligent substation, one-way filtration and isolation of an SMV sampling value control block sent to a relay protection device by a process layer interchanger is achieved, bidirectional interaction of GOOSE control blocks respectively sent to the relay protection device and the interchanger by the interchanger and the relay protection device is kept, the SMV sampling control block required by a test is added from other input ports of a special data interaction device through an optical digital relay protection instrument, the added SMV sampling value control block and the GOOSE control blocks are transmitted to the relay protection device in the same pair of optical cables, and an integral transmission test of the relay protection device and an intelligent terminal is achieved. The special data interaction method-based special data interaction device for the intelligent substation is in tandem connection between the process layer interchanger and the relay protection device and is convenient to achieve the integral transmission test of the sampling value SMV and GOOSE combined networking intelligent substation relay protection and other safe automatic devices.

Description

technical field [0001] The invention relates to the field of relay protection testing for a secondary system of an intelligent substation in an electric power system, and in particular to a special data interaction method and device for an intelligent substation. Background technique [0002] The smart substation is a modern substation constructed by layers of intelligent primary equipment and networked secondary equipment, and based on the IEC61850 system, which can realize information sharing and interoperability between intelligent electrical equipment in the substation. The smart substation has the characteristics of simple secondary system structure, no open circuit in the secondary circuit to introduce high voltage danger, strong anti-electromagnetic interference ability of optical fiber transmission, etc. The smart substation using electronic, optical fiber or magneto-optical glass transformers also has the floor area Small size, no CT saturation and ferromagnetic res...

Claims

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Application Information

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IPC IPC(8): H04L12/70H04L12/26H02J13/00
CPCY02E60/00Y04S10/16
Inventor 宁楠杨经超肖宁张广梅王磊赵轩陈刚
Owner GUIZHOU POWER GRID CO LTD
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