Control Of Error Compensation For Synchronized Feed In Full Cell Web Laminating Process

PEMFC (Proton Exchange Membrane Fuel Cell) has the advantage of high-energyconversion rate, high-speed start-up, convenient adjusting the power and so on, so it is seen asthe most suitable fuel cell system for electric vehicles and residential power equipment andwill have the broad market and application fields in the future. Because the productionprocess of PEMFC is so complex that producing the PEMFC automatically is very difficult,the production efficiency is one of the bottlenecks that hinder the PEMFC from beeningwidely used. From the above discussion, it is clear that developing automated productionequipments that produce PEMFC is very significant. Therefore, this paper investigates keytechnologies of the equipment used for laminating film that belongs to the automatedproduction line. The major work is as follows:(1)Based on the process flow of the equipment, this paper analyzes the demand of theequipment modules. Taking into account the demand and the cost, this paper designs thedevice control system, which uses industrial personal computer and two types of motioncontrol cards as the core and employs servo motors and stepper motors as the actuators.(2) For the sealing film cut-aligned process requirement in the film laminating, asynchronization control scheme used in the second laminating unit is presented. To ensure thesynchronization of film transmission, a closed loop algorithm is proposed withsynchronization error compensation on the basis of the characteristics of uniform incision onthe film surface.Finally, to verify the effectiveness of the algorithm, a test platform that is similar with thesecond laminating unit is built. The test platform excludes the differences of the effects ofPID control of motors and the conditions of the rollers. The experimental data testifies thatthe control strategy can effectively reduce the position synchronization error and fulfillthe process requirement.