Research on reliability of multi-channel distributed intelligent distribution architecture

Aerospace high reliability complex power supply and distribution products are an important part of satellite system, and their reliability is related to the safety of the whole satellite and ship. The traditional task planning and health management take remote control and telemetry as the main means to complete the on orbit operation status monitoring and management of the system by telemetering the characteristic parameters of the power supply and distribution unit. The traditional on-board test equipment and corresponding parameters of the distribution path defined by the hardware connection increase significantly with the expansion of the system. Conventional distribution path design has low margin in technical indicators such as maintainability, scalability and reliability, as well as software definable. This paper decouples the traditional architecture of existing hardware defined distribution path. A variety of different levels of electrical equipment are integrated in a small volume at the same time. In order to avoid permanent damage to the power supply and distribution bus caused the fault of electrical equipment connected to the power network. The fault was removed and avoided to complete the reliability calculation of the architecture. The architecture design ensure the distribution of power for the key loads completed by the core tasks, which has become the forward direction of aerospace reliability under the new development situation.