无线网络的新型分数顺序截止时间补偿控制器
P Arun Mozhi Devan1, Rosdiazli Ibrahim2, Madiah Omar3
1Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, 32610, Malaysia. arun.selvam@utp.edu.my.
Scientific reports
|October 17, 2023
概括
一个新的基于分数计算的预测PI补偿器改进了无线工业控制系统. 这种方法提高了稳定性和可靠性,在处理数据包丢失和系统延迟方面表现优于传统技术.
科学领域:
- 控制系统工程 控制系统工程
- 无线通信网络 无线通信网络
- 工业过程自动化 工业过程自动化
背景情况:
- 无线HART,ZigBee,WLAN和ISA100.11a等无线技术在工业闭环系统中至关重要.
- 无线网络面临的挑战包括数据包丢失,延迟和数据安全,这可能会破坏流程的稳定性.
- 传统的死亡时间补偿方法在无线环境中表现不佳,特别是长时间死亡时间和设置点变化.
研究的目的:
- 为有线和无线网络的过程控制提出一种基于分数计算的新型预测PI补偿器.
- 评估补偿器在工业环境中的有效性,使用无线测量和控制.
- 解决无线工业控制系统中现有方法的性能限制.
主要方法:
- 基于分数计算的预测PI补偿器的开发和模拟.
- 使用无线数据采集对工业过程模型 (压力,流量,温度) 的评估.
- 性能评估考虑无线网络指标:数据包丢失,吞吐量和延迟.
主要成果:
- 与传统方法相比,拟议的补偿器证明了优越的设定点跟踪,干扰排斥和延迟补偿.
- 对一级,二级和三级系统的评估显示了显著的改进.
- 补偿器将超支减少了近一半,并实现了更快的结算时间 (平均8.3927%的改善).
结论:
- 基于分数计算的预测PI补偿器提高了无线工业控制系统的性能,稳定性和可靠性.
- 这种技术有效地减轻了与无线网络相关的问题,如数据包丢失和延迟.
- 拟议的方法为使用无线通信的现代过程控制行业提供了强大的解决方案.
相关概念视频
Time and frequency -Domain Interpretation of PI Control
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Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
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Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
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Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
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Time and frequency -Domain Interpretation of Phase-lag Control
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Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
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Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
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