Intelligent transformer station relay protection testing system and method and realization method

Abstract

The invention provides an intelligent transformer station relay protection testing system and method and a realization method. The testing system comprises a graph user interface, a model and parameter management unit, a collected data analysis unit, a realtime digital simulation unit and a simulated data conversion unit, the model and parameter management unit is connected with a graph interface unit, the collected data analysis unit is connected with the graph interface unit and used for analyzing collected data, converting the collected data into a format needed by corresponding state information in a model and transmitting the collected data to the realtime digital simulation unit, and the simulated data conversion unit is connected with the graph interface unit and the realtime digital simulation unit respectively. The intelligent transformer station relay protection testing system and method and the realization method have the advantages that construction period is short, cost is lowered, requirements on professional level and proficiency of testing personnel are low, and configuration and wiring errors in the process of intelligent transformer station relay protecting site assembly can be avoided.

Description

technical field [0001] The invention relates to the field of substation relay protection, in particular to an intelligent substation relay protection test system, a test method and an implementation method. Background technique [0002] With the promotion and construction of smart substations, substation relay protection has undergone tremendous changes in the implementation mechanism, organizational structure and operation and maintenance mode. Compared with traditional relay protection, the characteristics of smart substation relay protection mainly include: 1. A large number of introduction Intelligent devices such as electronic transformers and merging units enable the electrical information of the primary system to be transmitted through data frames; 2. The relay protection architecture of three layers and two networks has changed the information exchange method of point-to-point cable transmission in the original process layer; 3. Based on the IEC61850 standard Equipme...

AI Technical Summary

Problems solved by technology

[0006] The above three smart substation relay protection test methods have the following defects: the protection test method of sampling value information injection and the protection test method of switch position information determination can only achieve the single test function in terms of test range, these two test methods ignore The impact of signal acquisition and network communication on relay protection is not included, and it has no reference value for the relay protection action process across equipment and across intervals

The system-level dynamic model test range is comprehensive and the test results are intuitive. However, the construction period of the dynamic model laboratory is long, the cost is huge, and the professional level and proficiency of the testers are high. More importantly, it is difficult to avoid the on-site assembly process of the smart substation relay protection. Errors in configuration and wiring etc.

Images