Saber Simulation Of The Aircraft Power Supply System

Aircraft power supply system is an important part of the whole aircraft system, and the design of power supply system is crucial to the safety and reliability of the whole system. Based on the digital simulation of power electronics and power supply system in both home and abroad, this paper makes a thorough study on the system modeling and simulation technique of a Constant Speed Constant Frequency system using Saber.Modeling of synchrounous generator a key point in the system simulation process, through detailed theoretic analysis of synchronous generator, a synchrous generator model and its voltage regulator are proposed in this paper. Using the concrete parameters of a practical synchronous generator YJF-30, some simulation programs are carried upon the established model. The generator model can be used to make simulation of generators with different characteristics with some modifications. After this, the AC/DC rectifier model and DC/AC inverter model of the power are both analysed and estabilished. Futhermore, this paper also presents us with the Bus Power Control Unit, which is a key component in the power supply system. Atfer all component models are established, the whole system can be derived, using the whole system simulation model, simulation of the practical fault modes are made and the simulation waveform are also presented.It can be conclude that the whole simulation system is correct and reliable; it can realize the protection function and make the whole system steady and reliable. Furthmore, the system also has a good expandability, it can be expanded with the power distribution system to form a more comprehensive system.