Simulation and Optimization of Synchronization Control System for CFETR Water Hydraulic Manipulator Based on AMEsim

The remote handling operations of the China fusion engineering test reactor blanket is highly challenging since the tasks performed by the water hydraulic manipulator, which is made up of three hydraulic cylinders, involve driving up, synchronous controlling and transporting from inside the vacuum vessel. The blanket is made of stainless steel, high 7 m and weigh 60 t, which makes the assembly and maintenance more difficult. A general synchronization control system cannot be used due to its poor stability and low precision in the heavy duty working process. Therefore, to achieve higher precision in controlling of three hydraulic cylinders, one of the most suitable options should be provided. This paper studies the control of synchronous system, besides, it also discusses an effective way to improve synchronization accuracy by use AMEsim. The results of simulations demonstrates that insert the low-pass filter in control loop can be utilized to improve the precision of manipulator.