Decoupling Control of Electro-hydraulic Multivariable Position Control System

Decoupling of the electro-hydraulic multivariable position coupling system is designed and experimented using diagonal matrix method. The feedback decoupling and feedback complete decoupling schenes are applied respectively to eliminate the effects of structure coupling and outside disturbance force on the decoupiling control. The results show that it has distinct decoupling effect. This method can be realized only by position value of two hydraulic cylinder piston,so that the algorithm is simple and easy to be applied in engineering.