LTE (Long Term Evolution) wireless communication intelligent substation test device

Abstract

The invention relates to an LTE (Long Term Evolution) wireless communication intelligent substation test device. The LTE wireless communication intelligent substation test device comprises a simulation master station, a first LTE wireless transceiver module, a second LTE wireless transceiver module and distributed data terminals. The LTE wireless communication intelligent substation test device is convenient to carry and assembly and can be widely applied to an installation and debugging test and a shutdown maintenance test and technical performance evaluation in the substation site; near-end experimental devices are arranged beside different intervals of field devices respectively and connected with a far-end device through an LTE local wireless private network private network and accordingly the debug personnel do not need to carry optical fibers additionally; the operation state of most of power systems can be accurately simulated and the working conditions of secondary protection and measurement and control equipment can be investigated; meanwhile a plurality of relative protection and measurement and control devices are accessed and accordingly the full test on a secondary system of the full station is implemented and the site work process is optimized.

Description

technical field [0001] The invention belongs to the technical field of intelligent substation testing, and relates to a test device for an intelligent substation with LTE wireless communication. Background technique [0002] Based on the DL860 standard (IEC61850 standard), the smart substation adopts advanced technologies such as digital sampling, intelligent primary equipment and optical fiber Ethernet. It has the characteristics of digitalization, networking and information sharing in the whole station. Detection, commissioning and testing put forward higher requirements. [0003] Smart substation testing is a key link to ensure the smooth operation of smart substations. The reliability and effectiveness of secondary equipment and system functions in smart substations depend on the guarantee of testing technology. The test of the secondary equipment of the smart substation should not only include the unit detection of the merging unit, intelligent terminal, digital pr...

AI Technical Summary

Problems solved by technology

[0005] 1) Smart substations have the characteristics of digital communication, networking, and information sharing across the station. Traditional secondary equipment test tools can only send and receive test data in a fixed format, and complete individual tests for specific equipment and single functions. The reliability and effectiveness of the overall function;

[0006] 2) The configuration modes of the secondary system of the smart substation in operation are diverse, the manufacturers of the secondary equipment are complicated, and there are large differences in the equipment networking mode and the communication protocol adopted. At present, there is no test tool that can be used universally for different types of smart substations test tasks;

[0007] 3) At present, the protection of the interval layer of the intelligent substation is arranged in the protection room, while the process layer merging unit and the intelligent terminal are scattered and arranged on the spot; in view of this distributed layout, affected by the space distance and the environment, the entire group of intervals in the substation site is connected to the flow pressure and function. It is difficult to realize the transmission, which brings certain hidden dangers to the safe and stable operation of the substation;

[0008] 4) It is impossible to conduct a comprehensive performance test on the secondary equipment before installation, so this part of the work can only be arranged in the on-site debugging link, which makes the debugging work extremely heavy

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