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.