一种基于FPGA的航空发动机独立备份控制系统（英文）  

FPGA-Based Independent Backup Control System of Aero-Engine

作　　者：蒋文亮 王少永 马加翼 蒋永杰 JIANG Wen-liang;WANG Shao-yong;MA Jia-yi;JIANG Yong-jie(AECC Aero Engine Control System Institute,Wuxi 214061,China)

机构地区：[1]中国航发控制系统研究所

出　　处：《推进技术》2019年第7期1628-1636,共9页Journal of Propulsion Technology

摘　　要：当航空发动机主控制系统出现故障时,为确保飞行安全,提出一种基于现场可编程逻辑门阵列(FPGA)的独立备份控制系统,通过配置FPGA内部可编程逻辑实现主备控制系统平稳切换以及燃油流量、螺旋桨转速控制功能,提高航空发动机的安全性与可靠性。给出了备份控制系统的总体方案、工作原理、控制算法、切换逻辑、通道同步及机内自测试(BIT)方法等。研究成果已应用于某型航空发动机控制系统中,并进行了发动机地面台架试车。验证结果表明:该备份控制系统工作稳定,转速控制误差小于0.2%、燃油流量控制误差小于0.35%,通道切换时燃油流量扰动不超过1.5%,满足设计要求。An independent backup control system based on Field Programmable Gate Array(FPGA)is used to ensure air safety when the master control system of aero-engine breaks down. It can realize a smooth transition from the master control system to the backup control system,control the fuel flow and airscrew speed by setting the programmable logic in FPGA. This system can improve the reliability and safety of aero-engine. This paper proposed the general plan,operating principle,control algorithm,switching logic,channel synchronization and Built-In Test(BIT)of the backup control system. The research has been applied in a certain type of aero-engine control system and passed the rig test. Speed control error is less than 0.2% and fuel flow control error is less than 0.35%. During the channel switching,the fluctuation of the fuel flow control is within 1.5%. It turns out that the system works stably and meets the design requirements.

关 键 词：独立备份控制 现场可编程逻辑门阵列 全权限数字电子控制 航空发动机控制 燃油流量控制 机内自测试 

分 类 号：V11[航空宇航科学与技术—人机与环境工程]