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In allusion to the problem of low positioning precision in the handpiece positioning control of computer knitting machine, this paper applies the compound feedforward PID control algorithm to the position control system, combines with 51 Micro Control Unit (MCU) to realize the high-precision positioning control. In contrast the traditional algorithm PID control technology, this system simulates on the MATLAB platform. The results show that this algorithm has a good following performance and less error, will be helpful for improving the positioning accuracy, meanwhile with a high practical value. Keywords-Computerized flat knitter, Compounding feedforward PID algorithm, MCU

Application of Compounding Feedforward PID Algorithm in the Positioning Control of Computerized Flat Knitter