多滤波器并联方式解决直升机动力传动链扭振耦合

Elimination of Coupling Instability Using Few Parallel Connection Notch Filters for Helicopter Rotor/Power Train

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
Aviation Motor Control System Institute, Wuxi 214063, China

摘要: 为了解决直升机动力传动链扭振系统与动力控制系统的耦合不稳定性问题,提出了一种采用多个陷波滤波器并联组合、根据发动机不同的工作模态选择不同滤波器实现扭振滤波的方法。对陷波滤波器进行了改进,使得引入控制系统通频带的附加相移减小,降低了对系统控制性能的影响。通过直升机联合试验,验证了该方法是有效的。
- 航空、航天推进系统 /
- 直升机 /
- 涡轴发动机 /
- 控制 /
- 扭振 /
- 滤波器
Abstract: A solution was proposed which eliminated the coupling instability between helicopter power transmitting train torsional vibration system and power control system.A combination of notch filters in parallel and filters selected according to engine working modes have been used to achieve torsional vibration filtration.The modification of the notch filter made the extra phase-shifting introduced to the control system passband reduced and so the control performance was improved.The method was demonstrated successfully on a helicopter integrated test-bed.
- aerospace propulsion system /
- helicopter /
- turboshaft engine /
- control system /
- torsional vibration /
- notch filter

[1]	王辉,陈华,刘志文.直升机发动机控制系统与旋翼/动力传动扭振系统耦合稳定性分析[J].直升机技术,2004,(4):19～23.Wang Hui,Chen Hua,Liu Zhiwen.The Stability Analysis of The Coupled System Consists of Helicopter Engine Control System,Rotor and Drive Train[J].Helicopter Technology,2002,(4):19～23.
[2]	Watson W,Coultes M E.Static Exciter Stabilizing Signal on Large Generators-Mechanical Problems[J].IEEE Trans.on PAS,1973,PAS-92(1)204～211.
[3]	Lawson R A,Swann D A,Wright G F.Minimization of Power System Stabilizer Torisonal Interaction[J].IEEE Trans.on PAS,1978,PAS-97(2):183～ 190.
[4]	Lee D C,Beaulieu R E.Effects of Governor Characteristic on Turbo generator Shaft Torsionals[J].IEEE Trans.on PAS,1985,PAS-104 (4):1255～ 1261.
[5]	凌爱民,孙东红.直升机旋翼/动力传动链扭振分析与试验[J].直升机技术,2003(2):7～11.Ling Aimin,Sun Donghong.Anlysis and Test of Torsional Vibration for Helicopter Rotor/Power Train[J].Helicopter Technology,2003.2:7～ 11.
[6]	邵忍平,沈允文,刘更.直升机旋翼传动系统固有振动特性的研究[J].机械科学与技术,1997,16(3):523～525.Shao Renping,Shen Yunwen,Liu Geng.Study on Dynamic Characteristic of Transmission System for Helicopter Rotary Wings[J].Mechanical Science Technology,1997,16,(3):523～525.