In this paper, discontinuous signum-activated zd (Zhang dynamics) controllers are proposed as an attempt firstly to handle the agitator tank. For the agitator tank, there are two control variables, which are accurate ...
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ISBN:
(纸本)9781509055210
In this paper, discontinuous signum-activated zd (Zhang dynamics) controllers are proposed as an attempt firstly to handle the agitator tank. For the agitator tank, there are two control variables, which are accurate concentration and moderate liquid level. In other words, the proposed discontinuous signum-activated zd controllers are designed to make the two variables of the agitator tank converge to desired trajectories. Moreover, signum function, as a kind of discontinuous activated function, has easier circuit implementation and thus is introduced as an activation function for handling agitator tank as an attempt. Besides, different tracking trajectories are used, and corresponding simulation results are shown in this paper. The simulation results, compared with the zd controllers using the linear activation function, further verify the relative effectiveness of the discontinuous signum-activated zd controllers. In addition, the simulation results also simultaneously show that the discontinuous signum-activated zd controllers of the agitator tank may oscillate under certain frequencies.
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