Design of Power Supply for Distributed Aero-engine Intelligent Control System

Abstract

Compared with centralized power supply system architecture, distributed power supply architecture can better meet the requirements of distributed aero-engine intelligent control systems. The design of distributed power supply topology plays a vitally important role in the distributed power supply system. The paper presents an engineering design method of distributed power supply for the distributed control system in a certain aero-engine. The distributed power supply topology is developed. Based on this topology, the bus voltage level and the current of the distributed intelligent nodes are designed. The optimal selection method of transmission cable types between intelligent nodes is also provided based on the equivalent circuit of a distributed power supply system. The results show that the cable transmission loss and voltage drop meet the design specifications of electrical cable. The proposed distributed power scheme for the distributed engine control system results in minimal modifications, smaller transmission current, and lighter cables.