A comparative study of two decoupling control strategies for a coupled tank system

Optimal Decentralized PI Control Design for a TimeDelay Benchmark Process Control System : AModified Whale Optimization Algorithm Approach

“…Robust stability is also analyzed, taking into account multiplicative input and output uncertainty. The results show that the suggested controller outperforms [5] in terms of minimal interaction and robustness in the face of uncertainty. The simulation results show that the suggested controller provides both robust stability and outstanding loop performance.…”

“…This section integrates simulation results in order to validate the effectiveness and capabilities of the controller that has been proposed.A comparison is made between the outcomes of the proposed controller and a comparable approach that was documented in [5]. The yielded identified connected tank system model, provided in section 2, is used to simulate the proposed controller.…”

“…The controller is designed to effectively satisfy both robustness and loop performance criteria simultaneously. Table I presents a comparison between the simulation results and other performance indices of the suggested controller and a previously published study in [5]. To show the robustness of the proposed controller, ±10% parametric uncertainty is applied to gain and time delays.…”

“…The response in the independent loop tuning approach may be inadequate due to the absence of precise information regarding the functioning of the controller in the other loop. Furthermore, apart from the aforementioned ways for designing multiple loop control, there are several other decoupling techniques documented in the literature, including decentralized control [5]- [9] and adaptive decoupling control [10], [11]. However, Despite the availability of more complex controllers, SISO PID controllers with decouplers remain the most popular in the industry due to their simple construction and ease of deployment.…”