Optical power test method for intelligent substation

Abstract

The invention provides an optical power test method for an intelligent substation. The optical power test method for the intelligent substation comprises the steps of: importing a configuration file;selecting an IED to be measured; testing the sending optical power value of a sending optical port and the receiving optical power value of a receiving optical port; automatically calculating the optical fibre loss value; performing comparing and checking of a data set corresponding to a sending message and a data set corresponding to a receiving message with a data set in the configuration file;and forming a report to output. By means of the optical power test method for the intelligent substation provided by the invention, the problems that a result needs to be artificially recorded and thereceiving and sending optical ports between two IEDs are artificially matched by depending on an optical fibre configuration table in optical power testing of the current intelligent substation can be solved; the artificial operation time is effectively reduced; and the test effectiveness and reliability are greatly improved.

Description

technical field [0001] The invention relates to the field of relay protection testing of a secondary system of an intelligent substation in a power system, in particular to an intelligent substation power testing method. Background technique [0002] In recent years, with the rapid development of new technologies in power grids, adhering to the construction of smart grids will undoubtedly become the main direction of power grid development in the future. With the large-scale operation of smart substations and the popularization and application of smart devices, optical cables are gradually replacing cables. At present, optical fiber communication has been widely used in smart substations, and the optical fiber will attenuate during the transmission process. When the optical signal is attenuated to the point where it cannot be received, the communication will be interrupted. Therefore, we judge the communication status of the optical fiber by the optical power. [0003] The o...

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Problems solved by technology

[0004] There is no strict specification for the test of the logical link in the optical fiber transmission. Most of the substations use IED equipment to transmit power. After the logical link has no alarm, and the single IED device is debugged and the whole group is debugged, it is considered correct. The inspection and testing methods cannot guarantee whether the data set transmitted in the optical fiber is consistent with the CCD, TXT, INI and other files downloaded from the device.

The existing method relies on the optical fiber configuration table, and needs to manually match the two IED receiving and receiving ports, which leads to low work efficiency, directly leads to increased working hours, increased labor intensity, and may cause matching errors , which lays hidden dangers for the subsequent safe operation of equipment; secondly, it is impossible to directly calculate the attenuation value of the fiber connection, which makes the testing process more cumbersome and error-prone

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