Research on Position Error Prediction and Compensation of Direct Drive Turntable Based on WOABP Network

• Published in: Journal of physics. Conference series Vol. 2694; no. 1; pp. 12060 - 12064
• Main Authors: Chen, Xiumei, Liu, Jiachi, Lin, Haochun, Xu, Youmin
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2024
• Subjects: Back propagation networks; direct drive numerical control turntable; Eccentric loads; Eccentricity; Error analysis; Identification methods; Mathematical models; Numerical controls; position error; position error compensation; position error prediction; Position errors; Position measurement; Turntables; Whale optimization
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/2694/1/012060

Abstract A method to identify the position error of direct drive numerical control turntable by measuring current and eccentric load is proposed, and the position error model of direct drive numerical control turntable based on whale Optimized BP (WOABP) neural network is established. The test-bed is built to measure the current, eccentric load and position error. The measured current and eccentric load are trained by WOABP neural network, and the position error of direct drive numerical control turntable is obtained. By comparing the original error, the error obtained by BP neural network and the error obtained by WOABP neural network, the effectiveness of WOABP neural network model is verified. The position error of direct drive numerical control turntable is compensated by the error obtained by the model.