Journal of System Simulation ›› 2019, Vol. 31 ›› Issue (4): 740-749.doi: 10.16182/j.issn1004731x.joss.17-0268

Previous Articles     Next Articles

Encoder Fault Detection and Fault Tolerant Control of 3D Stage Wire System Based on FDRE

Li Wei1, Ge Zhenfu1, Shen Fuyuan1, Gong Jianxing2   

  1. 1. College of Electrical and Information engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    2. Gansu University of Technology Stage Technology Engineering Co., Ltd, Lanzhou 730050, China
  • Received:2017-06-06 Revised:2017-09-04 Online:2019-04-08 Published:2019-11-20

Abstract: Aimed at the problem of encoder fault of 3D stage wire system, combined with LADRC, two kinds of fault tolerant control strategiesare presented based on fault diagnosis reliability evaluation (FDRE) to prevent the spread of fault effects in the system and causing accidents. Based on this, the soft and hard smooth transition soft redundant switching mechanism is designed. The simulation results show that the control strategy can ensure encoder fault detection in a timely and reliable manner, and effectively improve the safety and reliability of 3D stage wire system.

Key words: 3D stage wire system, encoder fault, SPRT, FDRE, soft redundancy

CLC Number: