Results 61 to 70 of about 36,908 (274)

A Simplified Fractional Order PID Controller’s Optimal Tuning: A Case Study on a PMSM Speed Servo

Entropy, 2021
A simplified fractional order PID (FOPID) controller is proposed by the suitable definition of the parameter relation with the optimized changeable coefficient.
Weijia Zheng, Ying Luo, YangQuan Chen, Xiaohong Wang   +3 more
semanticscholar   +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, Copot, Cosmin, Copot, Dana, De Keyser, Robain, Ionescu, Clara-Mihaela   +4 more
core   +2 more sources

Salp Swarm Optimization Algorithm-Based Fractional Order PID Controller for Dynamic Response and Stability Enhancement of an Automatic Voltage Regulator System

Electronics, 2019
Owing to the superior transient and steady-state performance of the fractional-order proportional-integral-derivative (FOPID) controller over its conventional counterpart, this paper exploited its application in an automatic voltage regulator (AVR ...
I. Khan, A. Alghamdi, T. Jumani, A. Alamgir, A. Awan, A. Khidrani   +5 more
semanticscholar   +1 more source

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, Ionescu, Clara-Mihaela, Liu, Sheng, Zhao, Shiquan   +3 more
core   +1 more source

Direct instantaneous torque control of Brushless DC motor using firefly Algorithm based fractional order PID controller

, 2020
In this paper, a Firefly Algorithm (FA) based Fractional Order PID (FOPID) Controller is proposed for Brushless DC (BLDC) motor to achieve an effective control of torque and speed.
Bapayya Naidu Kommula, Venkata Reddy Kota   +1 more
semanticscholar   +1 more source

Optimal fractional order PID controller design using Ant Lion Optimizer

Ain Shams Engineering Journal, 2020
This paper uses a nature inspired metaheuristic algorithm based on the behavior of ant lions named as Ant Lion Optimization (ALO) to design the fractional order PID controller (FOPID) for controlling first order and higher order systems.
R. Pradhan, S. Majhi, J. K. Pradhan, B. B. Pati   +3 more
semanticscholar   +1 more source

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, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

Current Harmonic Suppression in Maritime Vessel Rudder PMSM Drive System Based on Composite Fractional-Order PID Repetitive Controller

Journal of Marine Science and Engineering
To 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, Tianli Wang, Jingwen Fan, Jing Bai   +3 more
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, Ionescu, Clara-Mihaela, Muresan, Cristina I.   +2 more
core   +2 more sources

The potential of fractional order distributed MPC applied to steam/water loop in large scale ships [PDF]

, 2020
The steam/water loop is a crucial part of a steam power plant. However, satisfying control performance is difficult to obtain due to the frequent disturbance and load fluctuation.
Cajo Diaz, Ricardo Alfredo, De Keyser, Robain, Ionescu, Clara-Mihaela, Zhao, Shiquan   +3 more
core   +1 more source