Model Following Control Scheme Incorporating Integral Compensator for Multiple Hydraulic Flight Control Systems.

摘要

Mechanical summing of the output of redundant flight control systems into a single axis shows that the output forces do not always act synchronously, because there are the differences of output in respective systems caused by system parameter variations and disturbances. As a result, operation of the systems is never smooth and the servomechanism is subjected to excessive loads. To prevent these problems, we apply a model following control incorporating an integral compensator to the redundant systems. In this control system, steady state errors doe not arise if the system parameters vary from their nominal values and constant disturbances. Experimental results were demonstrated by operating three-channel electro-hydrualic servosystems.