摘要
动力系统是无人机安全、可靠飞行的动力保障。文中以某型航空涡轮增压活塞发动机为动力的无人机为例,在无人机飞行剖面内对动力系统进行综合控制。采取特征参数闭环控制、动力系统状态信息实时采集并进行目标趋势分析与故障诊断、执行机构集中管理与控制等手段,合理地调整动力系统工作状态,以延长发动机使用寿命,提高发动机可用功率,最大限度发挥发动机的装机特性,从而更好地满足无人机使用需求。统计结果表明,动力系统采用综合控制技术后,发动机使用高度提升36%,相同燃、滑油装载条件下,发动机运转时间延长25%,动力系统在线故障检测率高于92.5%、故障定位率高于96%。达到了动力控制与调节功能的可行性、匹配性、协调性与可靠性的目的。
The propulsion system is the power guarantee for the safe and reliable flight of UAV(unmanned aerial vehicle).Taking the UAV powered by an aviation turbocharged piston engine as an example,the propulsion system is comprehensively controlled in the flight profile of the UAV.By means of closed loop control of characteristic parameters,real⁃time acquisition of status information of propulsion system,target trend analysis and fault diagnosis,centralized management and control of actuator,the working status of propulsion system can be reasonably adjusted to extend the service life of engine,improve the available power of engine,and maximize the installed characteristics of engine,so as to better meet the use requirements of UAV.The statistical results show that after the integrated control technology is adopted in the power system,the engine service height is increased by 36%,the engine operation time is extended by 25%under the same fuel and lubricating oil loading conditions,the online fault detection rate of the propulsion system is higher than 92.5%,and the fault location rate is higher than 96%.The feasibility,matching,coordination and reliability of power control and regulation functions are achieved.
作者
车海威
张成成
赵树言
CHE Haiwei;ZHANG Chengcheng;ZHAO Shuyan(Xi’an ASN Technology Group Co.,Ltd.,Xi’an 710065,China)
出处
《现代电子技术》
2023年第6期111-117,共7页
Modern Electronics Technique
关键词
无人机
动力系统
航空涡轮增压活塞发动机
综合控制方法
闭环控制
故障诊断
试验测试
UAV
propulsion system
aviation turbocharged piston engine
integrated control
closed⁃loop control
condition diagnosis
experimental testing
