LED 多线切割机自动绕线的并联差分耦合同步控制.PDF

41 5 Vol.41, No.5 2012 10 Information and Control Oct., 2012 DOI 10.3724/SP.J.1219.2012.00559 LED 1 23 1 1. 411105 2. 325035 3. 410082 LED TP273 A 1002-0411(2012)-05-0559-05 The Parallel Difference Coupling Synchronization Control of Automatic Winding of LED Multi-wire Saw PENG Siqi1 DAI Yuxing23 XU Haixia1 (1. College of Information Engineering, Xiangtan University , Xiangtan 411105, China; 2. College of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China; 3. College of Electrical and Information Engineering, Hunan University, Changsha 410082, China) Abstract: Aiming at the defects of low efficiency of manual winding in traditional multi-wire saw, an automatic winding mechanism is added. The control system with the changed mechanical structure and function is analyzed in detail. According to the system characteristics, a unified model with synchronous linear velocity and angular velocity is established. Existing synchronous control algorithms are improved, the speed error difference of a single motor is increased, a kind of parallel difference coupling synchronization control strategy is put forward, and its effectiveness is testified. The traditional master- slave synchronous control comparative tests prove that the parallel difference coupling synchronization control algorithm has advantages of both high control accuracy and small inter-axle error. Keywords: LED (light emitting diode) multi-wire saw; automatic winding; multi-motor synchronization control; parallel