控制阵解耦的直升机显模型跟踪飞控系统设计

Flight control system design of explicit model-following for helicopter based on control distribution matrix decouple

摘要:

以某型武装直升机为例,在电传控制方式下,从工程易实现的角度出发,仅通过对控制阵B解耦,设计直升机显模型跟踪飞控系统。重点阐述了解耦矩阵Bd的设计,主要讨论当B不为方阵时,如何从广义逆矩阵的角度设计解耦矩阵,同时还需解决内回路多变量输入输出维数不一致的问题。通过定量分析评估所设计的模型跟踪系统的性能。完成内回路设计后,采用单输入单输出经典控制方法设计外回路。仿真结果验证了内外回路单独独立设计的可行性。

Abstract:

This paper takes an attack helicopter for example for achieving flight control system design of explicit model-following control system for helicopter fly-by-wire system. This control system uses control distribution matrix decouple only for realizing easily in project. This paper pays more attention on how to design decoupling matrix Bd when B is not square, and this paper has also solved the problem of multi-variable dimension. It is necessary to quantitative analysis to identify the performance of model-following system. The design of outer loop uses SISO classic control methodologies. The results of the simulation indicate the feasibility of designing of outer loop and inner loop separated. It provides direction for project application.