Performance degradation evaluation method for outer space service power supply system, storage medium and equipment

Abstract

The invention provides a performance degradation evaluation method for an outer space service power supply system. The method comprises the following steps: data acquisition: acquiring a telemetry data set and actual degradation data of a power supply system in an on-orbit service complete period of a reference spacecraft; model training: preprocessing the collected data, arranging the preprocessed data set according to the distribution of a system on a physical structure to form a matrix, and continuously changing the distribution structure of the data set and the size of a sliding window to obtain an abstract structure extractor closest to actual degradation data; degradation assessment: collecting a telemetry data set of the power supply system to be assessed, and inputting the telemetry data set into the trained abstract structure extractor based on affinity matrix analysis to obtain the performance degradation degree of the power supply system to be assessed in the state to be detected; according to the invention, ground management personnel can be helped to make performance degradation evaluation on power supply systems of external space long-term service equipment such as satellites and space stations more integrally and macroscopically.

Description

technical field [0001] The invention relates to the field of performance degradation evaluation of power supply systems, in particular to a performance degradation evaluation method, storage medium and equipment of a power supply system in outer space service. Background technique [0002] As a direct provider of energy for long-term service equipment in outer space such as satellites and space stations, the importance of the power system is self-evident. Any long-term service equipment in outer space must be equipped with a suitable and reliable power supply system to provide a safe and reliable power supply to ensure the normal operation of each sub-system of the equipment. Once the power supply system fails to supply power, satellites, space stations and other long-term service equipment in outer space will immediately lose their functions and become useless "space junk". [0003] During the service process of long-term service equipment in outer space such as satellites...

AI Technical Summary

Problems solved by technology

It is usually inappropriate and inaccurate to analyze the performance degradation of only one module or a certain component of a certain module in the power system without considering the associated effects of other modules or components.

But for such a large and complex system, the existing methods are usually difficult to achieve a more ideal effect due to various limitations

Among them, the method based on mechanism modeling often leads to too complex model due to the nonlinear and high coupling characteristics of the system, and the whole system may also fall into chaos, which is difficult to analyze in the end; while the method based on data-driven, for a tightly structured power supply As far as the system is concerned, it is difficult to guarantee the comprehensiveness and rigor of the analysis, and the interpretability of the conclusion is poor, so it is difficult to effectively guide the subsequent fault diagnosis and maintenance work, and can not provide a clearer idea for the improvement of the design of the equipment in the future

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