广西师范大学学报（自然科学版）2024，Vol.42Issue(5)：72-78,7.DOI:10.16088/j.issn.1001-6600.2023101701
PMSM混沌系统无初始状态约束的固定时间有界控制
Fixed Time Bounded Control of PMSM Chaotic Systems without Initial State Constraints
摘要
Abstract
Permanent magnet synchronous motor(PMSM)is a multivariable and highly coupled nonlinear system,which is subject to chaotic oscillations during practical operation.In order to suppress the chaos of the PMSM system,a fixed-time bounded controller without initial state constraints is designed,which can make the system reach a stable state within 2.8 s.Firstly,the virtual controller is designed according to the virtual errors of each subsystem of the PMSM system,and the controller is derived by backstepping to have high anti-interference performance and robustness.Secondly,it is proved that the time-varying feedback parameter ensures that the system achieves asymptotic stabilization while arriving at the finite-time convergence,and the stabilization time is only related to the prescribed boundary.Finally,numerical simulations are carried out by adjusting the control coefficients k so that the system can reach stability quickly under different initial states,and it is verified that the designed controller is able to make the system reach asymptotic stability and the output converge to the given boundary regardless of the initial state of the system.关键词
PMSM/混沌振荡/混沌控制/稳定状态Key words
PMSM/chaotic oscillation/chaotic control/stable state分类
信息技术与安全科学引用本文复制引用
张锦忠,韦笃取..PMSM混沌系统无初始状态约束的固定时间有界控制[J].广西师范大学学报（自然科学版）,2024,42(5):72-78,7.基金项目
国家自然科学基金(62062014) （62062014）
广西自然科学基金(2021JJA170004) （2021JJA170004）
