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A transmission channel simulation method and system for relay protection

A transmission channel and relay protection technology, applied in emergency protection circuit devices, electrical components, electrical digital data processing, etc., can solve the problem of lack of means and methods of simulation and analog channels

Inactive Publication Date: 2016-04-13
XJ ELECTRIC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In practical applications, more and more new problems arise due to bit errors, interruptions, delays, etc. Part of it is only to test the bit error and channel delay of the channel. It has never detected the impact of channel bit error, delay and interruption on the protection equipment.

Method used

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  • A transmission channel simulation method and system for relay protection
  • A transmission channel simulation method and system for relay protection

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Embodiment Construction

[0032] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Embodiment of a transmission channel simulation method of the present invention

[0034] Such as figure 1 As shown, the transmission channel simulation method of the present invention includes seven steps for realizing the simulation of the relay protection transmission channel: realizing the generation of random code errors, the generation of continuous code errors, the generation of channel delay, and the generation of channel interruption; It can realize any combination of random bit error, continuous bit error, channel delay, and channel interruption, and form a sequence according to time period. Each time period can be composed of multiple combinations. Various combination sequences of channels and the duration of each combination sequence can be set. It is also possible to set the channel combination sequence to repeat infinite...

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Abstract

The invention relates to a transmission channel simulation method and system for relay protection. A random error code generation module, a continuous error code generation module, a channel delay module and a channel interruption module are used for stimulating random error codes, continuous error codes, channel delay and channel interruption in a transmission channel, the random combinations of the random error codes, the continuous error codes, the channel delay and the channel interruption can be realized and can form sequences according to time periods, and the multiple combinations can exist in each time period. The random error codes can easily and simply generate pseudorandom sequences by using a multiplicative congruence method. A simulation method is provided for various transmission channels for the relay protection, so as to realize protection performance tests and channel test examination on current differential protection before regular checking and commissioning.

Description

technical field [0001] The invention relates to a transmission channel simulation method and system for relay protection, belonging to the field of relay protection automation of electric power systems. Background technique [0002] In the field of power system relay protection, there are many communication methods in the communication network used to transmit relay protection signals: optical fiber communication, power line carrier communication, microwave communication, Ethernet communication, etc. The power communication network with optical fiber communication as the backbone network has been widely used. With the development of smart substations, the Ethernet communication network is gradually being built. Although power line carrier communication and microwave communication are not the main means of communication, they still exist at the same time. Power communication The development and popularization of the network provides sufficient channel resources for the large-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50H02H7/26
Inventor 马国红王全海任华锋宋一丁王定国马世玺郭震周东杰孙振华贺渊明胡凯利
Owner XJ ELECTRIC
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