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Distributed detection method of intelligent substation relay protection devices based on digital dynamic real time simulator (DDRTS)

A relay protection device and intelligent substation technology, which is applied in the direction of circuit devices, electrical components, information technology support systems, etc., to achieve the effect of easy portability and assembly

Active Publication Date: 2014-09-10
STATE GRID HUNAN ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the detection of protection devices in smart substations still relies on traditional relay protection detectors for detection, and has not yet been able to introduce DDRTS into the detection of protection devices in smart substations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Configure a host high-speed communication signal conversion device and at least two terminal high-speed communication signal conversion devices in the DDRTS, build the electrical primary system model of the target intelligent substation in the DDRTS, and then use the conventional method to detect the target The simulation data of the electrical primary system model of the smart substation is simulated and calculated. The host high-speed communication signal conversion device adopts the ITIO-C10 host high-speed communication signal conversion module produced by China Shenzhen Yintu Company; the terminal high-speed communication signal conversion device adopts the ITIO-ZMG terminal high-speed signal converter produced by China Shenzhen Yintu Company. A conversion device; the DDRTS adopts the V7.0 version DDRTS produced by China Shenzhen Yintu Company;

[0017] (2), the simulation data obtained in step (1) is transmitted to the above-mentioned host high-speed communica...

Embodiment 2

[0024] Step (1) is with embodiment 1;

[0025] (2), the simulation data obtained in step (1) is transmitted to the above-mentioned host high-speed communication signal conversion device, and then the host high-speed communication signal conversion device is used to transmit the simulation data in real time to the distribution in step (1) by wireless conduction. ) Each terminal high-speed communication signal conversion device at each process layer site of the smart substation;

[0026] Steps (3)~(5) are the same as in Example 1;

[0027] (6) Using the above-mentioned terminal high-speed communication signal conversion devices to transmit the switching value information received from step (5) to the above-mentioned host high-speed communication signal conversion device in real time through wireless conduction. The host high-speed communication signal conversion device synchronously summarizes the received switching value information and transmits it to the above-mentioned DDRT...

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PUM

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Abstract

The invention introduces a DDRTS-based intelligent substation relay protection device detection method, which includes the following steps: (1), simulation calculation; (2), transmission of simulation data; (3), conversion into secondary current signal and secondary voltage signal output; (4), the primary current signal and primary voltage signal converted into SV message form are transmitted to; (5), the switching value information is returned; (6), real-time transmission to each terminal at high speed Communication signal conversion device; (7), transmitted to each relay protection device. This method: 1. It can more accurately simulate the operation status of various power systems, and conduct a more comprehensive detection of relay protection devices; 2. Arrange the near-end experimental equipment next to the field equipment and connect it with the remote experimental equipment. The smart substation is commissioned on site, and all experimental equipment is modularized for easy portability and assembly.

Description

technical field [0001] The invention belongs to the technical field of power system transient simulation, and specifically relates to an intelligent substation relay protection based on DDRTS (English full name is "Digital Dynamic Real-Time Simulator" abbreviation, Chinese translation is "power system dynamic real-time simulation system") Device distributed detection method. Background technique [0002] Different from traditional substations, smart substations transform the information transmission mode of analog quantities and switching quantities into optical fiber network transmission methods, and use optical fibers to transmit various sampling values ​​and status digital signals to relevant protection measurement and control equipment, without actual current Series and voltage loops, the secondary cables are greatly reduced. It can be seen that because of the digitalization of information, the debugging tools and methods have changed; The compartment layer protection u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY02E60/7838Y02E60/723Y04S40/126Y04S10/16Y04S40/124Y02E60/7853Y02E60/00
Inventor 欧阳帆陈宏赵永生张亮峰荀吉辉郭茗菘
Owner STATE GRID HUNAN ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST
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