摘要
直升机飞控系统幅频特性应低频高增益,高频低增益,尽可能提高带宽,以适应全包线机动飞行,优良动态跟踪及通道解耦等要求。用回路成形法结合经典控制理论,通过选取恰当的权阵和,而后用优化得到控制器,给出了直升机飞控系统内回路工程设计的具体策略。并指出了回路成形设计中的抗积分卷绕实施途径。对所给出的设计策略的有效性均辅以仿真验证。在成功的内回路设计基础上,可简便地单独设计外回路各通道。
As the flight control systems of helicopters should have high gains at low frequency and low gains at high frequency, and the bandwidth should be as high as possible to obtain satisfactory capability and robustness, and atfter properly slecting W1 and W2, this paper designs inner - loop controllers K∞ for an helicopter flight control system by the method of H∞ loop shaping. Additonally, an anti - windup loop is affiliated for the integral effect of the weigh W1 and the saturation of actuators. Finally, controllers are examined through simulation. The strategy given in the paper has provided a fundation for designing out - loop controllers of helicopters..
出处
《计算机仿真》
CSCD
2007年第7期62-64,291,共4页
Computer Simulation
关键词
直升机
飞行控制
回路成形
反卷绕
Helicopter
Fight control
Loop shaping
Anti - windup
