Relay protection test system based on mobile platform

Abstract

The invention relates to a relay protection test system based on a mobile platform, which comprises an upper computer, a lower computer and a handheld device, wherein the handheld device, the upper computer and the lower computer are sequentially connected; the lower computer comprises a main control board, an indication lamp and a keyboard; the main control board is connected with the indicationlamp and the keyboard respectively; the main control board comprises a communication module and an STM32 module; the STM32 module is connected with the upper computer; the STM32 module is connected with the upper computer through an RS485 interface; the communication module is provided with 3 power grid ports and 2 optical Ethernet ports; two of the 3 power grid ports are RJ45 interfaces; the twoRJ45 interfaces are connected with a network switch through a network transformer; the other power grid port is connected with the upper computer; the 2 optical Ethernet ports are connected with the network switch through a resistor-capacitor network respectively; and the network switch is connected with each check device. Compared with the prior art, the relay protection test system based on themobile platform has the advantages that the working efficiency is greatly improved; the reliability of the test process is ensured; the reliability performance of data communication is stable; operation and management are facilitated; and the like.

Description

Technical field [0001] The invention relates to a relay protection test system for a power system, in particular to a relay protection test system based on a mobile platform. Background technique [0002] With the birth and development of power systems, relay protection came into being. The importance of relay protection in the power system is self-evident, so the relay protection verification device plays a pivotal role in the stable operation of the entire power grid. There are a lot of relay protection verification work in the daily work of the secondary operation of the power system. The traditional on-site verification is generally performed by the on-site engineer according to the work instruction in the form of a document. This method has the following in practical applications a few questions: [0003] 1. The workload of on-site operation is large and the efficiency is low: when the staff perform inspection work according to the operation instructions and step by step, th...

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Problems solved by technology

[0003] 1. The on-site work is heavy and the efficiency is low: when the staff performs the inspection work step by step according to the operation instructions on the site, it is necessary to continuously set the status of the calibration equipment and input the calibration data, and some data even need to pass On-site calculation can only be obtained, and the efficiency is low; in addition, after the calibration is completed, a large amount of temporarily recorded data needs to be sorted into a calibration report, which is a heavy workload and easily causes some calibration data to be lost

[0004] 2. High requirements for human resources and gaps appear: On-site calibration requires experienced professional and technical personnel, who are familiar with the calibration process and skilled in equipment operation

The training of such personnel generally requires a certain period. With the continuous increase of secondary equipment in the current power system, professionals who can meet the above technical requirements begin to become tense.

[0005] 3. On-site supervision is difficult: From the assignment of on-site maintenance and calibration tasks, to task execution operations, to result feedback, etc., the work of each link depends on the responsibility of the staff, and the status of maintenance and calibration can only be obtained from the school. reflected in the test report

[0006] 4. The currently widely used on-site calibration equipment is not friendly enough for test operation, lacks intelligent operation, and still relies on technical personnel with high professional requirements

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