TY - GEN
T1 - Two-degree-of-freedom multirate control system with integral compensation for improvement in steady-state intersample response
AU - Kimura, Shuhei
AU - Sato, Takao
AU - Yanou, Akira
AU - Masuda, Shiro
AU - Araki, Nozomu
AU - Konishi, Yasuo
PY - 2012/11/27
Y1 - 2012/11/27
N2 - This paper deals with a multirate control system, where the sampling interval of the plant output is an integer multiple of the hold interval of the control input. In that multirate system, the intersample output may oscillate in steady state even if a sampled output converges to a set point. The oscillation is called ripple, and it causes a deterioration of the control performance. This paper proposes a new design method to suppress the ripple in the multirate system using the integral compensation. In the proposed control system, the integral compensation is revealed only when there is a modeling error or a disturbance. Therefore, the transient response is not deteriorated by the integrator if neither a modeling error nor a disturbance exists. A numerical example demonstrates the effectiveness of the proposed method.
AB - This paper deals with a multirate control system, where the sampling interval of the plant output is an integer multiple of the hold interval of the control input. In that multirate system, the intersample output may oscillate in steady state even if a sampled output converges to a set point. The oscillation is called ripple, and it causes a deterioration of the control performance. This paper proposes a new design method to suppress the ripple in the multirate system using the integral compensation. In the proposed control system, the integral compensation is revealed only when there is a modeling error or a disturbance. Therefore, the transient response is not deteriorated by the integrator if neither a modeling error nor a disturbance exists. A numerical example demonstrates the effectiveness of the proposed method.
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M3 - Conference contribution
AN - SCOPUS:84869797781
SN - 9780955529382
T3 - 2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012
SP - 104
EP - 108
BT - 2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012
T2 - 2012 International Conference onAdvanced Mechatronic Systems, ICAMechS 2012
Y2 - 18 September 2012 through 21 September 2012
ER -