Space photovoltaic module and method for improving durability, spacecraft solar wing

By employing a dual electrically independent photovoltaic power generation system and real-time monitoring and switching technology, the system output problem of space photovoltaic modules after battery damage has been solved, achieving a doubling of module lifespan and reliability, as well as an increase in total power generation, making it suitable for weight-sensitive, high-reliability space missions.

CN122205960APending Publication Date: 2026-06-12CHANGZHOU ALMADEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGZHOU ALMADEN
Filing Date
2026-01-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing space photovoltaic modules suffer from reduced system output after severe battery damage, and the overall flip-over solution cannot restore the degraded battery performance, cannot meet the reliability and energy consumption requirements of the drive mechanism, and cannot maximize the on-orbit effective power generation life of the modules under limited weight constraints.

Method used

The system employs a dual electrically independent photovoltaic power generation system, consisting of front and back cells, each composed of a front functional layer and a back functional layer. A high-reflectivity insulating barrier layer is used for electrical insulation. The power generation system is switched in real time through monitoring and orientation adjustment to ensure that the two systems operate independently.

Benefits of technology

It achieves a doubling of the lifespan and reliability of photovoltaic modules, significantly increases total power generation, avoids the failure of one system affecting another, and possesses excellent lightweight characteristics and high structural integration, meeting the weight-sensitive and highly reliable space mission requirements.

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Abstract

The application belongs to the technical field of photovoltaic modules, and relates to a space photovoltaic module and a durability improvement method and a spacecraft solar wing. The spacecraft solar wing comprises a front functional layer, a front cell, a high-reflection insulating partition layer, a back cell and a back functional layer which are sequentially stacked. The front cell and the back cell are two electrically completely independent photovoltaic power generation systems. The front functional layer comprises a front outer protective layer and a front inner functional film. The back functional layer comprises a back outer protective layer and a back inner functional film. The high-reflection insulating partition layer adopts a double-sided high-reflection insulating adhesive film to have electrical insulation characteristics. The spacecraft solar wing has the effects of doubling the effective power generation life and significantly improving the total power generation capacity, and the high-reflection partition layer is adopted to optimize light utilization, and the spacecraft solar wing is particularly suitable for space missions which are sensitive to weight and require high reliability.
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