Time-Varying Delays Related Stability Analysis of Permanent Magnet Synchronous Motor Current Loop
To explore the impact of time-varying time delays on the permanent magnet synchronous motor current loop control system,a permanent magnet synchronous motor current loop closed-loop control system model considering time-varying delays is established,and the Lyapunov-Krasovskii functional is constructed using the time-delay partitioning method.The time-varying delays related stability criterion that ensures the asymptotic stability of the system is obtained,and the relationship between the controller gain,the time-var-ying time-delay upper bound and the stability of the closed-loop system is established,which provides a the-oretical basis for controller parameter design in practical engineering applications.The simulation results show that the proposed method can ensure the asymptotic stability within the system and is less conservative than the classical method.It can provide theoretical support for time-varying delay-related stability analysis and controller design of control systems.
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