Optical digital relay protection testing instrument for intelligent transformer substation debugging

Abstract

The invention discloses an optical digital relay protection testing instrument for intelligent transformer substation debugging. The optical digital relay protection testing instrument includes a switching quantity input module, an switching quantity output module, an optical fiber interface module, a small-signal output module, a DSP module, an FPGA module, a digital-to-analog conversion module, a FLASH module, an RAM module, a communication module, an HPI interface module and a PHY module; the DSP module is connected with the FPGA module through the HPI interface module; the FPGA module is connected with the FLASH module and the optical fiber interface module; the DSP module is connected with the RAM module; the FPGA module is connected with the communication module, the switching quantity input module and the switching quantity output module through the PHY module; and the DSP module is connected with the small-signal output module through the digital-to-analog conversion module. According to the optical digital relay protection testing instrument of the invention, based on the joint effects of the FPGA module, the DSP module, the optical fiber interface module and the like, optical signals of faults of a digital substation can be generated, so that functional testing of the relay protection device of the digital substation can be realized.

Description

technical field [0001] The invention relates to an optical digital relay protection tester for intelligent substation debugging. Background technique [0002] With the rapid development of the national economy, the demand for electricity in all walks of life is increasing, and the requirements for the quality (stability, uninterrupted and accompanying services) of power supply provided by the power supply department are also getting higher and higher. The system has invested heavily in the automation transformation of power generation, transformation and distribution systems. The relay protection device is one of the most important secondary equipments in the power system, and it is the guarantee for the safe operation of the power system. Numerous examples at home and abroad prove that most of the large-scale system accidents involving power outages are directly or indirectly related to incorrect actions of relay protection devices. Therefore, it is an important condition...

AI Technical Summary

Problems solved by technology

[0003] Due to the small amount of information feedback in traditional substations, the difficulty of summarizing and analyzing fault information, the complicated and cumbersome wiring, and the safety risks for on-site test operators, as well as the rapid development of information, communication and network technologies in recent years, people have begun to try to use optical Communication to overcome these shortcomings of traditional substations, coupled with the country's strong support for digital substations, making optical digitalization of substations, including power systems, an inevitable trend. For this change, corresponding products must be produced to match it

Images