Abstract
Phase lead compensation proportional integral multi-resonant type repetitive control (PLC PIMR-type RC) can improve RC control accuracy and error convergence rate. However, when the sampling frequency is reduced, integer lead phase compensation may result in instability of RC system. To solve these problems, a fractional phase lead compensation PIMR-type RC (FPLC PIMR-type RC) is proposed to improve the steady-state performance and dynamic response. FPLC PIMR-type RC is approximately realized by finite impulse response (FIR) filter. Furthermore, simulation results demonstrate the performance of the proposed control scheme.
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