Results 41 to 50 of about 17,325 (226)
Fractional-Order PID Controller Based on Immune Feedback Mechanism for Time-Delay Systems
Fractal and Fractional, 2023 The control of processes with time delays is crucial in process industries such as petrochemical, hydraulic, and manufacturing. It is a challenging task for automation engineers, as it may affect both phase and gain margins.
Adel Makhbouche +3 more
doaj +1 more source
Autotuning method for a fractional order controller for a multivariable 13C isotope separation column [PDF]
, 2015 The preferred controller design technique in industrial applications is based on autotuning procedures that do not involve knowledge about an actual mathematical model of the process.
De Keyser, Robain +2 more
core +2 more sources
The application of a new PID autotuning method for the steam/water loop in large scale ships [PDF]
, 2020 In large scale ships, the most used controllers for the steam/water loop are still the proportional-integral-derivative (PID) controllers. However, the tuning rules for the PID parameters are based on empirical knowledge and the performance for the loops
De Keyser, Robain +3 more
core +1 more source
Journal of Marine Science and EngineeringTo address the control performance and harmonic suppression issues in maritime vessel rudder permanent magnet servo systems, a fractional-order PID controller was introduced into the existing improved repetitive control strategy.
Tianqing Yuan +3 more
doaj +1 more source
General type industrial temperature system control based on fuzzy fractional-order PID controller
Complex & Intelligent Systems, 2021 A fuzzy fractional-order PID control algorithm for a general type industrial temperature control system is proposed in this paper. In order to improve the production quality and controlled model accuracy, a fractional-order elementary system is used to ...
Lu Liu, Dingyu Xue, Shuo Zhang
doaj +1 more source
Universal direct tuner for loop control in industry [PDF]
, 2019 This paper introduces a direct universal (automatic) tuner for basic loop control in industrial applications. The direct feature refers to the fact that a first-hand model, such as a step response first-order plus dead time approximation, is not required.
De Keyser, Robain +2 more
core +2 more sources
Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions
Advanced Materials, EarlyView.‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao +8 more
wiley +1 more source
Machines, 2022 This paper studies operator and fractional order nonlinear robust control for a spiral counter-flow heat exchanger with uncertainties and disturbances.
Guanqiang Dong, Mingcong Deng
doaj +1 more source
Fractional-order feedback control of a poorly damped system [PDF]
, 2014 This study presents the design of a fractional-order proportional-integral (FOPI) controller for a mass-spring-damper system which is poorly damped. A model based design technique is used to design a FOPI controller for this system. A good performance of
Chevalier, Amélie +4 more
core +2 more sources
Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics
Advanced Materials, EarlyView.Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova +10 more
wiley +1 more source