The Steady State Limits Application of 18-pulse Rectifier in Aircraft Radar Power Supply System

Due to the continuous improvement of aircraft performance, MEA is more and more used in modern aircraft. It is becoming more and more popular to replace pneumatic system, hydraulic system and mechanical system with MEA. In order to meet the needs of aircraft radar power system, this paper designs an 18-pulse rectifier power supply, which is used to convert 115V AC to 270V DC. This type of power supply has low harmonic output and high efficiency and stable DC voltage. In this paper, MIL-STD-704A provides 11 test conditions of rectifier power system, in order to verify the simulation results under these conditions, thus the model of 18-pulse rectifier power supply is established, and the feasibility of 18-pulse rectifier power supply is verified through the follow-up experiments. Finally, the paper discusses several possible problems in practical application and analyzes the possible consequences, which makes it possible for 18-pulse rectifier being applied in aircraft radar power system.