MA Zenghui, DONG Fang, XU Huiyi. Repetitive disturbances rejection control for a class of thermal unstable process[J]. Thermal power generation, 2019, 48(5): 145-149.
DOI:
MA Zenghui, DONG Fang, XU Huiyi. Repetitive disturbances rejection control for a class of thermal unstable process[J]. Thermal power generation, 2019, 48(5): 145-149. DOI: 10.19666/j.rlfd.201809116.
Repetitive disturbances rejection control for a class of thermal unstable process
A control method for unstable thermal non-self-balancing objects is proposed
which has remarkable ability to restrain repetitive disturbances. In this method
the IPDT model of unstable hysteresis process with integral link can be equivalent to a two-order non-minimum phase system through feedback compensation. Then
by designing a dynamics general controller
the IPDT model can be controlled. At the same time
by making full use of the self-characteristics of the IPDT model
the system has a certain ability to inhibit the periodic repetitive disturbances. Simulation test results show this method has good control performance and robustness
it is simple in structure and design
and easy to be popularized and applied in engineering practice.