Open AccessThe Application of A New Disturbance Observer in Variable-load Electro-Optical Stabilized Platforms
Author(s) -
Zhiqiang Li,
Chao Song,
Fenglei Xu,
Jie Huang,
Xiao-fei Luan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1605/1/012009
Subject(s) - control theory (sociology) , disturbance (geology) , computer science , compensation (psychology) , perturbation (astronomy) , variable (mathematics) , control system , control engineering , control (management) , engineering , mathematics , artificial intelligence , psychology , paleontology , mathematical analysis , physics , quantum mechanics , psychoanalysis , electrical engineering , biology
Aiming at controlling difficulty of variable load Electro-Optical Stabilized Platforms (EOSPs), a control algorithm of perturbation rejecter + Disturbance Observer (DOB) is proposed by using the disturbance suppressor to compensate the disturbance observer due to model mismatch, to improve the robust performance of whole control system and the performance of disturbance suppression. The above control methods are validated in dual-rate loop structure under different friction load and effectively improve the stabilize accuracy of EOSPs. The results show that the compensation strategies of coordinating with one another can constrain effectively the impact of control performance caused by load change, and improve the platforms’ stabilization accuracy. According to experimental verification, the control method is effective and applicable in variable load conditions, and can provide reference resources and basis for engineering application of the control algorithm.