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首页> 外文期刊>Arabian Journal for Science and Engineering >Real-Time Control of Pressure Plant Using 2DOF Fractional-Order PID Controller
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Real-Time Control of Pressure Plant Using 2DOF Fractional-Order PID Controller

机译：使用2DOF分数阶PID控制器的压力设备实时控制

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摘要

Control of real-time pressure process is quite challenging due to high nonlinearity and sensitivity. PID controllers being the most employed for industrial applications have the potential for control of such processes. This is due to the PID's advantages of simple structure, ease of tuning and implementation. However, its performance degrades during set-point change and high external disturbances due to high sensitivity and nonlinearity of the pressure plant. Therefore, this paper proposes the two-degree-of-freedom fractional-order PID (2DOF-FOPID) controller for real-time control of pressure process in both parallel and series configurations. Furthermore, the controller parameters are obtained experimentally using Ziegler-Nichols and closed-loop set-point approaches. The controller has the advantages of improving set-point tracking and disturbance rejection performance through smoother control action over the conventional PID. From the real-time experimental results obtained, the proposed approach outperforms PID, fractional-order PID and 2DOF-PID controllers in terms of overshoot and settling time. Hence, the approach has better set-point tracking ability and disturbance rejection capability. Furthermore, the control action of the approach is less affected by undesired oscillations and derivative kick effect thereby extending the life of actuator.
机译：由于高度的非线性和灵敏度，实时压力过程的控制非常具有挑战性。在工业应用中使用最多的PID控制器具有控制此类过程的潜力。这是由于PID具有结构简单，易于调整和实现的优点。但是，由于压力设备的高灵敏度和非线性，在设定点变化和高外部干扰期间，其性能会下降。因此，本文提出了一种两自由度分数阶PID（2DOF-FOPID）控制器，用于并行和串联配置中的压力过程实时控制。此外，控制器的参数是使用Ziegler-Nichols和闭环设定点方法通过实验获得的。与传统PID相比，该控制器具有通过更平滑的控制动作来改善设定点跟踪和抗干扰性能的优势。从获得的实时实验结果来看，该方法在超调和建立时间方面优于PID，分数阶PID和2DOF-PID控制器。因此，该方法具有更好的设定点跟踪能力和干扰抑制能力。此外，该方法的控制动作较少受到不希望的振荡和微分踢作用的影响，从而延长了致动器的寿命。

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