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Relay protection dynamic performance test system

A technology of relay protection and dynamic performance, applied in the field of relay protection dynamic performance test system, can solve the problems of poor universality, high price of real-time simulation system, and huge volume of simulation system.

Inactive Publication Date: 2021-03-30
THERMAL POWER TECH RES INST OF CHINA DATANG CORP SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Real-time simulation system is expensive and poor in applicability
Due to the large size of the simulation system, it is impossible to put it on the field for testing
In addition, the modeling and operation of the simulation system require certain professional knowledge
The above reasons make it impossible to use this technology to carry out dynamic performance testing of relay protection on a large scale in the field

Method used

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  • Relay protection dynamic performance test system
  • Relay protection dynamic performance test system
  • Relay protection dynamic performance test system

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] The present embodiment provides a kind of relay protection dynamic performance test system, including the relay protection tester with fault playback function and the notebook computer that off-line electromagnetic transient analysis system (such as PSCAD software) is installed:

[0023] The notebook computer is connected with the relay protection tester through the network port, and the relay protection tester is connected with the relay protection device to be tested;

[0024] The offline electromagnetic transient analysis system is used for:

[0025] Build a power system fault and dynamic adjustment simulation model;

[0026] Carry out simulation calculation ba...

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Abstract

The invention relates to a relay protection dynamic performance test system, which comprises a relay protection tester with a fault playback function and a notebook computer provided with an off-lineelectromagnetic transient analysis system, wherein the notebook computer is connected with the relay protection tester through an internet access; the relay protection tester is connected with a relayprotection device to be tested. The off-line electromagnetic transient analysis system is used for building a power system fault and dynamic adjustment simulation model; performing simulation calculation on the basis of the built power system fault and dynamic adjustment simulation model, storing a calculation result as a data file in a COMTRADE format, and transmitting the data file to the relayprotection tester; and the relay protection tester is used for converting the obtained data into analog voltage and current by using a fault playback function and outputting the analog voltage and current to the relay protection device connected with the relay protection tester so as to carry out dynamic test on the relay protection device. According to the invention, dynamic performance detection of the relay protection device can be implemented on site.

Description

technical field [0001] The invention belongs to the field of relay protection dynamic performance testing, in particular to a relay protection dynamic performance testing system. Background technique [0002] The interconnection of large power grids and the application of large-capacity EHVDC transmission make the operation dynamics and fault characteristics of the power grid increasingly complex. At the same time, wind power generation, photovoltaic power generation, energy storage equipment, etc. are connected to the grid using power electronic devices, and the power system is showing a trend of power electronics. The operating conditions of relay protection are becoming more and more complex. The traditional method of verifying the relay protection setting through the relay protection tester is too simplified, and there is a lack of testing and analysis methods for relay protection in faults and dynamic disturbances. [0003] At present, digital real-time simulation syst...

Claims

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Application Information

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IPC IPC(8): G01R31/327G06F30/20
CPCG01R31/3278G06F30/20
Inventor 姚谦杨海超张兴滨李哲赵梓邑乔福喜王增强
Owner THERMAL POWER TECH RES INST OF CHINA DATANG CORP SCI & TECH RES INST