Abstract
The Peltier is a refrigeration device and usually used in the form of single layer. Sometimes single-layer Peltier may not have sufficient refrigerating capacity with deeper application. To this end, a double-layer Peltier system is proposed in this article. With the increasing layers, the nonlinearity of the system is enhanced and the multiple variables are coupled, bringing about control difficulty. To solve these control problems and promote the disturbance rejection performance, a composite controller is presented, consisting of feedback regulation based on finite-time control and feed-forward compensation based on finite-time disturbance observer. Then, finite-time Lyapunov stability analysis is shown to prove that this control scheme can converge to the equilibrium point in finite time. Last but not least, simulation and experiment are conducted to verify that the proposed strategy has not only a rapid convergence performance but also a prominent disturbance rejection property.
Highlights
Virtual reality technology is one of the most significant technologies in this new century
Force touch and texture touch have got great development because of the convenience brought by pressure sensor and computer image processing technology.[4]
For the proposed double-layer Peltier system in this article, we adopt an advanced control strategy consisting of finite-time feedback control and finite-time observer-based feed-forward control
Summary
Virtual reality technology is one of the most significant technologies in this new century. For the proposed double-layer Peltier system in this article, we adopt an advanced control strategy consisting of finite-time feedback control and finite-time observer-based feed-forward control. We introduce two finite-time observers for each layer of the double-layer Peltier system. In this double-layer system, taking into consideration that the states e1, e2 are available, we can subtract the coupling directly in the auxiliary control volumes, which can be designed as follows where k.0, 0\c\1, d^1, and d^2 are the estimated values by the finite-time observers recommended above.
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