Multi-alternative control principles in critical aerospace facilities

Improving the reliability of aircraft subsystems is considered. It is shown that a promising direction to ensure the survivability of such objects is the play of the corresponding properties of biological systems - homeostasis. It suggests that the specified property in the technical systems can be implemented on the basis of evolutionary principles multi-alternative: multilevel structure and control, diversity and separation of functions, modular structure. In the biological examples disclosed the content of these principles and demonstrates the possibility of extending them to the mission-critical technical systems. As an example of the principles multi-alternative seen in aircraft construction space station power supply system. The system comprises a plurality of alternative energy sources having a multilevel hierarchical control structure. To implement the principle of separation of functions is used partition common control area into non-overlapping ranges of active regulation, thereby significantly simplifies the task of ensuring the stability and performance of the system of quality, and to ensure harmonization and interoperability of control loops. The separation of functions, modularity and hierarchical structure exclude the possibility of a cascade (technologically connected) refusals rise in the system and ensure its vitality.