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Journal articles on the topic 'FPI CONTROLLER'

Author: Grafiati

Published: 11 September 2023

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1

Sheikh, M. R. I., R. Takahashi, and J. Tamura. "Robust Stabilizing Controllers to Automatic Generation Control for Load Frequency Control Application." Journal of Scientific Research 2, no. 2 (2010): 285–93. http://dx.doi.org/10.3329/jsr.v2i2.3063.

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Since superconducting magnetic energy storage (SMES) unit with a self-commutated converter is capable of controlling both the active and reactive powers simultaneously and quickly, increasing attention has been focused recently on power system stabilization by SMES control. This study presents the effects of novel control strategies of self-tuned fuzzy proportional integral (FPI) controller and fuzzy frequency (FF) controller associated with the automatic generation control (AGC) including SMES unit. The effects of the self-tuning configuration with FPI controller in AGC is also compared with

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2

Alkargole, Hazim M., Abbas S. Hassan, and Raoof T. Hussein. "Analyze and Evaluate the Performance Velocity Control in DC Motor." Radioelectronics. Nanosystems. Information Technologies 12, no. 4 (2020): 507–16. http://dx.doi.org/10.17725/rensit.2020.12.507.

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A mathematical model of controlling the DC motor has been applied in this paper. There are many and different types of controllers have been used with purpose of analyzing and evaluating the performance of the of DC motor which are, Fuzzy Logic Controller (FLC), Linear Quadratic Regulator (LQR), Fuzzy Proportional Derivative (FPD) ,Proportional Integral Derivative (PID), Fuzzy Proportional Derivative with integral (FPD plus I) , and Fuzzy Proportional Integral (FPI) with membership functions of 3*3, 5*5, and 7*7 rule bases. The results show that the (FLC) controller with 5*5 rule base provides

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3

Alawad, Nasir Ahmed. "Comparison Performance of PI and FPI Controllers for Model Reduction of Binary Distillation Column Plant." Brilliant Engineering 2, no. 1 (2020): 25–29. http://dx.doi.org/10.36937/ben.2021.001.005.

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Distillation is the separation strategy in the oil and compound businesses for cleansing of conclusive items. This paper deals with the reduced dynamic model and control of the distillation tower by applying a multi-loop control framework in Matlab/Simulink for a double blend. The structure objective considered is to guarantee that the top item, the base item, the reflux rate and the reboiler rate stray inside their recommended limits forever and for all the aggravations. This paper proposes an optimal tuning method for fractional Proportional-Integral controller (FPI). The method consists of

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Ko, Jae-Sub, Jun-Ho Huh, and Jong-Chan Kim. "Improvement of Energy Efficiency and Control Performance of Cooling System Fan Applied to Industry 4.0 Data Center." Electronics 8, no. 5 (2019): 582. http://dx.doi.org/10.3390/electronics8050582.

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This paper proposes a control method to improve the energy efficiency and performance of cooling fans used for cooling. In Industry 4.0, a large number of digital data are used, and a large number of data centers are created to handle these data. These data centers consist of information technology (IT) equipment, power systems, and cooling systems. The cooling system is essential to prevent failure and malfunction of the IT equipment, which consumes a considerable amount of energy. This paper proposes a method to reduce the energy used in such cooling systems and to improve the temperature co

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Wen, Jian-Ping. "Fractional Order Nonlinear Feedback Controller Design for PMSM Drives." Mathematical Problems in Engineering 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/290310.

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Fractional order integral is introduced into active disturbance rejection controller (ADRC) to establish the structure of fractional order proportional integral controller (FPI). Fractional order ADRC (FADRC) is designed by replacing the nonlinear state error feedback control law using nonlinear function combination in ADRC with FPI, which can combine the high performance of ADRC estimating disturbances with the characteristics of fractional order calculus more really describing the physical object and spreading the stable region of the system parameters. The proposed FADRC is applied to perma

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Elshenawy, Mahmoud, Ashraf Fahmy, Adel Elsamahy, Shaimaa A. Kandil, and Helmy M. El Zoghby. "Optimal Power Management of Interconnected Microgrids Using Virtual Inertia Control Technique." Energies 15, no. 19 (2022): 7026. http://dx.doi.org/10.3390/en15197026.

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Two interconnected AC microgrids are proposed based on three renewable energy sources (RESs): wind, solar, and biogas. The wind turbine drives a permanent magnet synchronous generator (PMSG). A solar photovoltaic system (SPVS) with an appropriate inverter was incorporated. The biogas genset (BG) consists of a biogas engine coupled with a synchronous generator. Two interconnected AC microgrids, M1 and M2, were considered for study in this work. The microgrid M2 is connected to a diesel engine (DE) characterized by a continuous power supply. The distribution power loss of the interconnected AC m

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Yan, Qixiang, Ibrahim Adamu Tasiu, Hong Chen, Yuting Zhang, Siqi Wu, and Zhigang Liu. "Design and Hardware-in-the-Loop Implementation of Fuzzy-Based Proportional-Integral Control for the Traction Line-Side Converter of a High-Speed Train." Energies 12, no. 21 (2019): 4094. http://dx.doi.org/10.3390/en12214094.

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Power quality is one of many issues affecting the traction power supply system. Prominent among the causes of poor power quality is voltage low-frequency oscillation (VLFO). In this paper, a fuzzy-based PI (FPI) controller to optimize the performance of the traction line-side converter (TLSC) and suppress the effect of VLFO is proposed. Firstly, the mathematical model of China’s railway high-speed five single-phase TLSC is developed, and then the FPI control unit is designed based on specific requirements. The fuzzy antecedent and consequence rules were generated based on the expert and previo

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8

Omar, Abeer, Dalia Yousri, Hazem A. Attia, and Dalia Allam. "A new optimal control methodology for improving MPPT based on FOINC integrated with FPI controller using AHA." Electric Power Systems Research 224 (November 2023): 109742. http://dx.doi.org/10.1016/j.epsr.2023.109742.

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Rabbani, Moazzam Ali, Muhammad Bilal Qureshi, Salman A. Al Qahtani, Muhammad Mohsin Khan, and Pranavkumar Pathak. "Enhancing MPPT Performance in Partially Shaded PV Systems under Sensor Malfunctioning with Fuzzy Control." Energies 16, no. 12 (2023): 4665. http://dx.doi.org/10.3390/en16124665.

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The shift towards sustainable energy sources is gaining momentum due to their environmental cleanliness, abundant availability, and eco-friendly characteristics. Solar energy, specifically harnessed through photovoltaic (PV) systems, emerges as a clean, abundant, and environmentally friendly alternative. However, the efficacy of PV systems is subjective depending on two critical factors: irradiance and temperature. To optimize power output, maximum power point tracking (MPPT) strategies are essential, allowing operation at the system’s optimal point. In the presence of partial shading, the pow

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10

Nayak, Smrutiranjan, Sanjeeb Kumar Kar, and Subhransu Sekhar Dash. "Combined fuzzy PID regulator for frequency regulation of smart grid and conventional power systems." Indonesian Journal of Electrical Engineering and Computer Science 24, no. 1 (2021): 12. http://dx.doi.org/10.11591/ijeecs.v24.i1.pp12-21.

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In continually increasing area and structure of modern power system having burden demand uncertainties, the use of knowledgeable and vigorous frequency power strategy is essential for the satisfactory functioning of the Power system. A combined fuzzy proportional-integral-derivative (CFPID) controller is suggested for frequency supervision of the power system. To optimize the controller parameters, a review of sine and cosine work adjusted improved whale optimization algorithm (SCiWOA) has been utilized. The next practical application of power-system frequency control is performed by designing

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Issa, Hazem, and József K. Tar. "Improvement of an Adaptive Robot Control by Particle Swarm Optimization-Based Model Identification." Mathematics 10, no. 19 (2022): 3609. http://dx.doi.org/10.3390/math10193609.

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Model-based controllers suffer from the effects of modeling imprecisions. The analytical form of the available model often contains only approximate parameters and can be physically incomplete. The consequences of these effects can be compensated by adaptive techniques and by the improvement of the available model. Lyapunov function-based classic methods, which assume exact analytical model forms, guarantee asymptotic stability by cautious and slow parameter tuning. Fixed point iteration-based adaptive controllers can work without the exact model form but immediately yield precise trajectory t

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Khan, Hamza, Hazem Issa, and József K. Tar. "Application of the Robust Fixed Point Iteration Method in Control of the Level of Twin Tanks Liquid." Computation 8, no. 4 (2020): 96. http://dx.doi.org/10.3390/computation8040096.

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Precise control of the flow rate of fluids stored in multiple tank systems is an important task in process industries. On this reason coupled tanks are considered popular paradigms in studies because they form strongly nonlinear systems that challenges the controller designers to develop various approaches. In this paper the application of a novel, Fixed Point Iteration (FPI)-based technique is reported to control the fluid level in a “lower tank” that is fed by the egress of an “upper” one. The control signal is the ingress rate at the upper tank. Numerical simulation results obtained by the

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Brahim, Dahhou, Bendjebbar Mokhtar, and Lachtar Salah. "Improvement of adaptive fuzzy control to adjust speed for a doubly fed induction motor drive (DFIM)." International Journal of Power Electronics and Drive Systems (IJPEDS) 11, no. 1 (2020): 496. http://dx.doi.org/10.11591/ijpeds.v11.i1.pp496-504.

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This paper presents the doubly fed induction motor (DFIM) speed control using adaptive fuzzy logic PI (AFLPI) controller to give better dynamic performances. Before the advent of modern technology, integral proportional based current controller is usually used due to its simplicity. But, the performance of closed-loop control is largely influenced by this type of speed and torque controllers used, as long as the PI controllers suffer from tuning problem. To overcome the problem, a new technique AFLPI based speed controller for direct field oriented control fed DFIM to get fast speed response a

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14

J, Nandha Gopal, and Muthu Selvan N. B. "Performance analysis of PI and Fractional order PI Controlled Quadratic Boost Converter System using MATLAB/Simulink." Bulletin of Scientific Research 2, no. 1 (2020): 49–59. http://dx.doi.org/10.34256/bsr2018.

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The depletion in the fossil fuel and increase in global warming has shifted the focus of researchers to green alternative energy. Wind power electrical generation is one such alternative where the kinetic energy of wind power is harnessed to generate green electrical power. India, being the fourth largest wind power generator has attracted numerous researchers towards the improvement of wind energy conversion system. This paper also presents improved controller techniques for a Permanent Magnet Synchronous generator (PMSG) based wind turbine coupled with Cascaded Quadratic Boost Converter (QBC

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15

Yousif, Salwan Y., and Mohamed J. Mohamed. "Design of Robust Fopi-Fopd Controller for Maglev System Using Particle Swarm Optimization." Engineering and Technology Journal 39, no. 4A (2021): 663–67. http://dx.doi.org/10.30684/etj.v39i4a.1956.

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Magnetic Levitation System (MLS) is one of the benchmark laboratories models for designing and testing feedback control systems in the presence of the parametric uncertainties and disturbances effect. Therefore, the MLS can be regarded as a tool to study and verify a certain robust controller design. In this paper, two types of powerful control schemes are presented to control the MLS. The first controller is a robust PI-PD controller, while the other is a robust fractional order FOPI-FOPD controller which provides two extra degrees of freedom to the system. In both controller design procedure

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16

Daraz, Amil, Suheel Abdullah Malik, Athar Waseem, et al. "Automatic Generation Control of Multi-Source Interconnected Power System Using FOI-TD Controller." Energies 14, no. 18 (2021): 5867. http://dx.doi.org/10.3390/en14185867.

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Automatic Generation Control (AGC) delivers a high quality electrical energy to energy consumers using efficient and intelligent control systems ensuring nominal operating frequency and organized tie-line power deviation. Subsequently, for the AGC analysis of a two-area interconnected hydro-gas-thermal-wind generating unit, a novel Fractional Order Integral-Tilt Derivative (FOI-TD) controller is proposed that is fine-tuned by a powerful meta-heuristic optimization technique referred as Improved-Fitness Dependent Optimizer (I-FDO) algorithm. For more realistic analysis, various constraints, suc

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17

.., Nirmal Kumar, Manish Prateek, Neeta Singh, and Abhinav Saxena. "An Implicit Controlling of Adaptive Neuro Fuzzy Inference System Controller for The Grid Connected Wind Driven PMSG System." Fusion: Practice and Applications 12, no. 2 (2023): 193–205. http://dx.doi.org/10.54216/fpa.120216.

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The article presents the design and control of the adaptive neuro fuzzy Inference system (ANFIS) for the wind-driven permanent magnet synchronous generator (PMSG) in the grid connected system. The rectifier and inverter are connected with the PMSG output and the grid for maintaining the voltage at the grid under variable wind operations. Such interconnections have many challenges, like high harmonics at the output and an improper voltage profile. The harmonics are measured in terms of total harmonic distortion (THD). Performance parameters like peak overshoot and settling time of DC link volta

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18

Meneses, Helber, Orlando Arrieta, Fabrizio Padula, Antonio Visioli, and Ramon Vilanova. "FOPI/FOPID Tuning Rule Based on a Fractional Order Model for the Process." Fractal and Fractional 6, no. 9 (2022): 478. http://dx.doi.org/10.3390/fractalfract6090478.

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This paper deals with the design of a control system based on fractional order models and fractional order proportional-integral-derivative (FOPID) controllers and fractional-order proportional-integral (FOPI) controllers. The controller design takes into account the trade-off between robustness and performance as well as the trade-off between the load disturbance rejection and set-point tracking tasks. The fractional order process model is able to represent an extensive range of dynamics, including over-damped and oscillatory behaviors and this simplifies the process modelling. The tuning of

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19

Zhang, Shuo, and Lu Liu. "Normalized Robust FOPID Controller Regulation Based on Small Gain Theorem." Complexity 2018 (September 27, 2018): 1–10. http://dx.doi.org/10.1155/2018/5690630.

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In this paper, a normalized robust FOPID controller regulation algorithm is proposed. Only one parameter k is necessary to be tuned in the controller regulation process, so the proposed control algorithm is convenient to be applied on both fractional-order systems and integer-order systems. A robustness evaluation function is constructed based on the small gain theorem. Larger robustness evaluation function value will help the system achieve better robustness performance. Another parameter, β, is also available to serve as a tuning knob when larger robust evaluation function value is needed. T

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Buljevic, Anja, Milos Miletic, Aleksandra Mitrovic, Mirna Kapetina, and Milan Rapaic. "Examples of robust controller design." Serbian Journal of Electrical Engineering 17, no. 1 (2020): 65–82. http://dx.doi.org/10.2298/sjee2001065b.

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In this paper two modern controllers are presented. These controllers should eliminate disturbance effect, handle process variations and process uncertainties. First controller that is considered is conventional Proportional - Integral (PI) controller and second one is Fractional PI (FOPI) controller. After testing both controllers on a series of simulations, performance of both control algorithms were applied on a real 3D crane system.

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21

Hasan, Muhannad Ali, Ahmed A. Oglah, and Mehdi J. Marie. "Packet loss compensation over wireless networked using an optimized FOPI-FOPD controller for nonlinear system." Bulletin of Electrical Engineering and Informatics 11, no. 6 (2022): 3176–87. http://dx.doi.org/10.11591/eei.v11i6.4345.

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Wireless networked control systems (WNCS) consist of an actuator, sensor, and controller communicating over wireless networks in place of traditional point-to-point wired connection. Due to their main advantages, a decrease in maintenance costs, more flexibility, and safety could be achieved. As a result, it attracted a great deal of interest, but packet losses and time delays in the wireless network through transmitting and receiving the data are considered very challenging issues, which impair the output accuracy of the WNCS and can affect the entire system stability. In this study, integer-

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22

Chu, Pengzi, Yi Yu, Danyang Dong, Hui Lin, and Jianjun Yuan. "NSGA-II-Based Parameter Tuning Method and GM(1,1)-Based Development of Fuzzy Immune PID Controller for Automatic Train Operation System." Mathematical Problems in Engineering 2020 (March 24, 2020): 1–20. http://dx.doi.org/10.1155/2020/3731749.

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Automatic train operation (ATO) system is one of the important components in advanced train operation control systems. Ideal controllers are expected for the automatic driving function of ATO systems. Aiming at the intelligence requirements of the systems, an NSGA-II-based parameter tuning method for the fuzzy immune PID (FI-PID) controller and a grey model GM(1,1)-based fuzzy grey immune PID (FGI-PID) controller were proposed. Taking a maglev train’s model as the control object and a velocity-time curve as the input, the feasibility of the parameter tuning method for the FI-PID controller and

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23

Xie, Shihao, Yun Zeng, Jing Qian, Fanjie Yang, and Youtao Li. "CPSOGSA Optimization Algorithm Driven Cascaded 3DOF-FOPID-FOPI Controller for Load Frequency Control of DFIG-Containing Interconnected Power System." Energies 16, no. 3 (2023): 1364. http://dx.doi.org/10.3390/en16031364.

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This paper proposes a new cascaded fractional-order controller (CC-FOC) to solve the load frequency control (LFC) problem of an interconnected power system. The CC-FOC consists of a three-degree-of-freedom fractional-order proportional-integral-differential (3DOF-FOPID) controller and a fractional-order proportional-integral (FOPI) controller. Each area of the two-area interconnected power system in this study consists of a thermal unit, a hydro unit, a diesel unit, and a doubly-fed induction generator (DFIG). The enhanced particle swarm optimization (PSO) and gravitational search algorithm (G

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Hasan, Muhannad Ali, Ahmed Alaa Oglah, and Mehdi Jelo Marie. "Time delay effect reduction on the wireless networked control system using an optimized FOPI-FOPD controller." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 2 (2023): 852. http://dx.doi.org/10.11591/ijpeds.v14.i2.pp852-862.

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Wireless Networked Control System (WNCS) is made up of an actuator, sensor, and controller that communicates through a wireless network rather than typical point-to-point cable connections. Lower maintenance costs, greater flexibility, and increased safety are the main WNCS advantages, so as a result, it has attracted a lot of researchers. Nevertheless, time delays and packet losses in wireless data transmission are classified as complicated problems, which impair WNCS output accuracy and may influence the overall system stability. Integer-Order PI-PD (PI-PD) and Fractional-Order PI-PD (FOPI-F

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Alanis, Alma Y., Jorge D. Rios, Nancy Arana-Daniel, and Carlos Lopez-Franco. "Real-time neural control of all-terrain tracked robots with unknown dynamics and network communication delays." Ingeniería Investigación y Tecnología 21, no. 3 (2020): 1–12. http://dx.doi.org/10.22201/fi.25940732e.2020.21.3.026.

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This work focuses on the design of an intelligent controller that is a considerably large challenge for cyber-physical systems. The proposed controller can deal with unknown dynamics, actuator saturation, unknown external and internal disturbances, unknown communication delays and packet losses. Such a controller is designed using a discrete-time approach based on inverse optimal control and a recurrent high-order neural network identifier. The applicability of the proposed scheme is shown through real-time results using a tracked robot platform controlled through a wireless network under diff

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Bouderres, Nacer, Djallel Kerdoun, Abdelhak Djellad, Sofiane Chiheb, and Azzeddine Dekhane. "Optimization of Fractional Order PI Controller by PSO Algorithm Applied to a Grid-Connected Photovoltaic System." Journal Européen des Systèmes Automatisés 55, no. 4 (2022): 427–38. http://dx.doi.org/10.18280/jesa.550401.

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With the increasing integration of renewable energies into power grids, their control and power quality are becoming the main focus of many research efforts. In a grid-connected photovoltaic system, the control strategy is necessary to efficiently use the solar energy as well as to ensure high power quality. This paper presents a study on the robustness of a Fractional Order PI controller based on the Particle Swarm Optimization algorithm (PSO-FOPI) in a grid-connected PV system. The controller used was integrated into the inverter to apply voltage-oriented control (VOC). Fractional order cont

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Ko, Jae-Sub, and Dong-Hwa Chung. "Efficiency Optimization Control of IPMSM drive using SC-FNPI Controller." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 26, no. 12 (2012): 9–20. http://dx.doi.org/10.5207/jieie.2012.26.12.009.

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Zamee and Won. "A Novel Plant Propagation-Based Cascaded Fractional Order PI Controller for Optimal Operation of Grid-Connected Single-Stage Three-Phase Solar Photovoltaic System." Applied Sciences 9, no. 20 (2019): 4269. http://dx.doi.org/10.3390/app9204269.

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Grid-connected photovoltaic (PV) inverters are gaining attention all over the world. The optimal controller setting is key to the successful operation of a grid-connected PV system. In this paper, a novel plant propagation algorithm-based fractional order proportional-integrator (FOPI) controller for cascaded DC link voltage and inner current control of a grid-connected PV controller has been proposed, which outperforms particle swarm optimization-based PI and elephant herding optimization-based FOPI in terms of multicriteria-based analysis. The performance of the proposed controller also has

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Sahu, Prakash Chandra, Ramesh Chandra Prusty, and Sidhartha Panda. "A gray wolf optimized FPD plus (1+PI) multistage controller for AGC of multisource non-linear power system." World Journal of Engineering 16, no. 1 (2019): 1–13. http://dx.doi.org/10.1108/wje-05-2018-0154.

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Purpose The paper has proposed to implement gray wolf optimization (GWO)-based filter-type proportional derivative with (FPD) plus (1+ proportional integral) multistage controller in a three-area integrated source-type interlinked power network for achieving automatic generation control. Design/methodology/approach For analysis, a three area interconnected power system of which each area comprises three different generating units where thermal and hydro system as common. Micro sources like wind generator, diesel generator and gas unit are integrated with area1, area2 and area3 respectively. Fo

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Xin, Rui Hao, Chun Yang Wang, Xue Lian Liu, Ming Qiu Li, and Duan Yuan Bai. "Robust Fractional Order Proportional Integral Control for Large Time-Delay System." Applied Mechanics and Materials 716-717 (December 2014): 1614–19. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1614.

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In this paper, a new control method for large time delay system is proposed. Firstly, the decreasing time delay controller is used to remodel large delay time plant into small delay time plant. Then, a fractional robust proportional-integral controller (FOPI) is designed, using the phase margin and cut-off frequency at a specified point in the Bode plot of flat robust conditions, to guarantee the desired control performance and the robustness of the high order system to the gain order system. For comparison between the fractional order proportional integral controller and the traditional integ

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Demirtas, Metin, and Farhan Ahmad. "Fractional fuzzy PI controller using particle swarm optimization to improve power factor by boost converter." An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 13, no. 2 (2023): 205–13. http://dx.doi.org/10.11121/ijocta.2023.1260.

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The power circuit of AC voltage controller capable of operating at a leading, lagging, and unity power factor is studied by a lot of researchers in the literature. Circuits working with high switching frequency are known as power factor correctors (PFCs). The single-phase boost converter has become the most popular topology for power factor correction (PFC) in general purpose power supplies. Power factor correction circuit provides conventional benefits to electric power systems. The benefits are the reduction of power factor penalty and utility bill and power loss. Therefore, a boost converte

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Niemann, Hans. "A model-based approach to fault-tolerant control." International Journal of Applied Mathematics and Computer Science 22, no. 1 (2012): 67–86. http://dx.doi.org/10.2478/v10006-012-0005-x.

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A model-based approach to fault-tolerant controlA model-based controller architecture for Fault-Tolerant Control (FTC) is presented in this paper. The controller architecture is based on a general controller parameterization. The FTC architecture consists of two main parts, a Fault Detection and Isolation (FDI) part and a controller reconfiguration part. The theoretical basis for the architecture is given followed by an investigation of the single parts in the architecture. It is shown that the general controller parameterization is central in connection with both fault diagnosis as well as co

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Yousef, Ali Mohamed, Farag K. Abo-Elyousr, Ahmed Elnozohy, Moayed Mohamed, and Saad A. Mohamed Abdelwahab. "Fractional Order PI Control in Hybrid Renewable Power Generation System to Three Phase Grid Connection." International Journal on Electrical Engineering and Informatics 12, no. 3 (2020): 470–93. http://dx.doi.org/10.15676/ijeei.2020.12.3.5.

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The main objective of this paper is to allow renewable energy sources (RES) to actively participate within hybrid microgrid by proposing a new control system based on fractional order proportional integral (FOPI) controller. Fractional order proportional integral controller is a classical proportional integral (PI) in which the integral part is a fraction instead of integer numbers. The paper introduces a hybrid photovoltaic (PV), wind turbine and battery storage system connected to a three-phase grid. Three types of controller are considered and compared for a hybrid renewable energy system (

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Allende Peña, Jacobo Marcos, Salvador Antonio Rodríguez Paredes, and Bernardino Benito Salmerón Quiroz. "Control and signal filtering system for a quadcopter; analysis, comparison and implementation via low-cost IMU and microcontroller." Ingeniería Investigación y Tecnología 22, no. 2 (2021): 1–18. http://dx.doi.org/10.22201/fi.25940732e.2021.22.2.015.

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This work presents the development, analysis and comparison of dynamic models, to implement in a simple way a filtering and control system for a quadcopter through the use of a microcontroller. A non-linear dynamic model obtained from the Euler Lagrange equations is approached, also a simplified non-linear model from the first model and a linear model are obtained. Subsequently, making use of each model, controllers are designed using the computed torque controller technique, then, their performance index is obtained through numerical simulations applied to the complete non-linear model to com

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Chen, Hao, Wei Xie, Xiyang Chen, et al. "Fractional-Order PI Control of DFIG-Based Tidal Stream Turbine." Journal of Marine Science and Engineering 8, no. 5 (2020): 309. http://dx.doi.org/10.3390/jmse8050309.

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This study mainly investigates the current and speed control strategies of a doubly-fed induction generator (DFIG), which is applied to a tidal stream turbine (TST). Indeed, DFIG using integer-order PI (IOPI) controller has been widely proposed in the applications with a similar system, especially in wind energy conversion system (WECS). However, these conventional controllers cannot deal with the problems caused by the parameter variations satisfactorily under complex and harsh operation conditions, and may even deteriorate the performance. As a result, a fractional-order PI (FOPI) controller

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Nikkhah Kashani, Hoda, Reza Rouhi Ardeshiri, Meysam Gheisarnejad, and Mohammad-Hassan Khooban. "Optimal Cascade Non-Integer Controller for Shunt Active Power Filter: Real-Time Implementation." Designs 6, no. 2 (2022): 32. http://dx.doi.org/10.3390/designs6020032.

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Active power filters (APFs) are used to mitigate the harmonics generated by nonlinear loads in distribution networks. Therefore, due to the increase of nonlinear loads in power systems, it is necessary to reduce current harmonics. One typical method is utilizing Shunt Active Power Filters (SAPFs). This paper proposes an outstanding controller to improve the performance of the three-phase 25-kVA SAPF. This controller can reduce the current total harmonic distortion (THD), and is called fractional order PI-fractional order PD (FOPI-FOPD) cascade controller. In this study, another qualified contr

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Vu, Truong Nguyen Luan, Vo Lam Chuong, Nguyen Tam Nguyen Truong, and Jae Hak Jung. "Analytical Design of Fractional-Order PI Controller for Parallel Cascade Control Systems." Applied Sciences 12, no. 4 (2022): 2222. http://dx.doi.org/10.3390/app12042222.

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The fractional-order proportional-integral (FOPI) controller tuning rules based on the fractional calculus for the parallel cascade control systems are systematically proposed in this paper. The modified parallel cascade control structure (PCCS) with the Smith predictor is addressed for stable, unstable, and integrating process models with time delays. Normally, the PCCS consists of three controllers, including a stabilized controller, for a class of unstable and integrating models, a disturbance rejection controller in the secondary loop, and a primary servomechanism controller. Accordingly,

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Behera, Aurobindo, Subhranshu Sekhar Pati, Umamani Subudhi, et al. "Frequency Stability Analysis of Multi-Renewable Source System with Cascaded PDN-FOPI Controller." Sustainability 14, no. 20 (2022): 13065. http://dx.doi.org/10.3390/su142013065.

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The present work describes a multi-area (two and three) renewable-energy-source-integrated thermal-hydro-wind power generation structure along with fleets of plug-in electrical vehicles (PEVs) in each control area. The generation–load balance is the prime objective, so automatic generation control (AGC) is adopted in the system. In the paper, a cascaded combination of proportional derivative with filter PDN and fractional-order proportional integral (FOPI) is proposed and tuned using the hybrid chemical reaction optimization with pattern search (hCRO-PS) algorithm. The hCRO-PS algorithm is des

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Murtaza, Ghulam, Aamir I. Bhatti, and Yasir A. Butt. "Super twisting controller-based unified FDI and FTC scheme for air path of diesel engine using the certainty equivalence principle." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 232, no. 12 (2017): 1623–33. http://dx.doi.org/10.1177/0954407017732860.

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This paper proposes a combination of higher order sliding mode and adaptive control for unified fault detection and isolation and fault tolerant control (FTC) of the air path of a diesel engine. Current diesel engines are equipped with features such as variable geometry turbochargers (VGT) and exhaust gas recirculation (EGR) for exhaust emission control. Since EGR and VGT systems are present in the exhaust channel, they are strongly coupled and are prone to both structured as well as unstructured faults. The proposed controller detects and estimates the structured faults by means of adaptation

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Babu, Naladi Ram, Sanjeev Kumar Bhagat, Tirumalasetty Chiranjeevi, et al. "Frequency Control of a Realistic Dish Stirling Solar Thermal System and Accurate HVDC Models Using a Cascaded FOPI-IDDN-Based Crow Search Algorithm." International Journal of Energy Research 2023 (August 5, 2023): 1–18. http://dx.doi.org/10.1155/2023/9976375.

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Unbalancing the real power in power system leads to fluctuation in system frequency which can cause the several negative effects on the performance and reliability of the interconnected power system. Therefore, to deal with this, the load frequency control (LFC) of a three-area asymmetric thermal power system integrated with a solar thermal power plant (STPP), a realistic dish-stirling solar thermal system (DSTS), and an accurate high voltage direct current (HVDC) link are presented in this work. For the suggested system, a novel cascade controller called fractional-order proportional-integral

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A., Immanuel, Challa Babu, Sudheer P., Pavan Kumar Naidu R., and Nageswara Rao Atyam. "Adaptive FPA Algorithm based OPF with Unified Power Flow Controller." EAI Endorsed Transactions on Energy Web 9, no. 40 (2022): e4. http://dx.doi.org/10.4108/ew.v9i40.150.

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In this work a novel modified flower pollination algorithm has been developed to solve the problem of single and multi-objective Optimal Power Flow operations for Unified power Flow Controller in Flexible Alternating Current Transmission Systems. In the proposed Adaptive Flower Pollination Algorithm the best initial solution can be chosen from the fittest and also the weights are adaptively adjusted to get better convergence characteristics. The nature of the objective functions is non-linear and difficult to get best possible solutions within the boundary conditions of total power demand. The

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Rakhshani, Elyas, Arcadio Perilla, Jose L. Rueda Torres, Francisco M. Gonzalez-Longatt, Thiago Batista Soeiro, and Mart A. M. M. Van Der Meijden. "FAPI Controller for Frequency Support in Low-Inertia Power Systems." IEEE Open Access Journal of Power and Energy 7 (2020): 276–86. http://dx.doi.org/10.1109/oajpe.2020.3010224.

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Kanev, Stoyan, and Michel Verhaegen. "Controller reconfiguration in the presence of uncertainty in the FDI." IFAC Proceedings Volumes 36, no. 5 (2003): 143–48. http://dx.doi.org/10.1016/s1474-6670(17)36484-4.

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Kumar, Mano Ranjan, and Subhojit Ghosh. "Hybrid Optimization Based FOPI Controller Design with Real-Time Validation." IFAC-PapersOnLine 51, no. 1 (2018): 78–83. http://dx.doi.org/10.1016/j.ifacol.2018.05.014.

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Jiangbo, Zhao, and Wang Junzheng. "The fractional order PI control for an energy saving electro-hydraulic system." Transactions of the Institute of Measurement and Control 39, no. 4 (2015): 505–19. http://dx.doi.org/10.1177/0142331215610184.

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In an electro-hydraulic system (EHS), the throttling phenomenon of the hydraulic valve leads to the problem of low utilization efficiency of hydraulic energy and severe increases in temperature. To alleviate this problem, this paper presents a type of one-chamber-controlled hydraulic circuit. In some applications where elastic load is dominant, this hydraulic circuit can achieve a significant energy-saving effect. For a valve-controlled system, the orifice non-linearity and the slowly varying parameter significantly influence the control performance of the electro-hydraulic system. With this a

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Shaolin, Hu, Sun Guoji, Ouyang Huajiang, and Chen Rushan. "FDI algorithms of abrupt faults in controlled autoregressive processes." International Journal of Intelligent Computing and Cybernetics 1, no. 2 (2008): 285–300. http://dx.doi.org/10.1108/17563780810874762.

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Hussain, Israfil, Dulal Chandra Das, Nidul Sinha, Abdul Latif, S. M. Suhail Hussain, and Taha Selim Ustun. "Performance Assessment of an Islanded Hybrid Power System with Different Storage Combinations Using an FPA-Tuned Two-Degree-of-Freedom (2DOF) Controller." Energies 13, no. 21 (2020): 5610. http://dx.doi.org/10.3390/en13215610.

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During the past few decades, there has been significant growth in the renewable energy market because of increased concern over global warming and the continuous depletion of fossil fuel resources. There is a promising solar thermal technology that utilizes low-temperature heat to generate electricity. The conversion process of thermal energy to electricity is based on the principle of an organic Rankine cycle (ORC). This study investigated a novel islanded hybrid power system consisting of an ORC low temperature solar thermal system, wind (WTG), diesel generation (DEG) set, and combined appli

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Muñoz, Jorge, Francesco Piqué, Concepción A. Monje, and Egidio Falotico. "Robust Fractional-Order Control Using a Decoupled Pitch and Roll Actuation Strategy for the I-Support Soft Robot." Mathematics 9, no. 7 (2021): 702. http://dx.doi.org/10.3390/math9070702.

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Tip control is a current open issue in soft robotics; therefore, it has received a good amount of attention in recent years. The desirable soft characteristics of these robots turn a well-solved problem in classic robotics, like the end-effector kinematics and dynamics, into a challenging problem. The high redundancy condition of these robots hinders classical solutions, resulting in controllers with very high computational costs. In this paper, a simplification is proposed in the actuation setup of the I-Support soft robot, allowing the use of simple strategies for tip inclination control. In

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Padiachy, Vadan, and Utkal Mehta. "Novel Fractional-Order Proportional-Integral Controller for Hybrid Power System with Solar Grid and Reheated Thermal Generator." Solar 3, no. 2 (2023): 298–321. http://dx.doi.org/10.3390/solar3020018.

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This paper presents a new fractional-order proportional-integral, (PI)λ (FO[PI]) type structure to investigate the load frequency control (LFC) problem. In the literature, some controllers’ extensive tuning options may slow or complicate the optimization process. Due to the intricacy of the tuning, even if there are fewer tuning parameters, a robust structure can be obtained. The (PI)λ structure deviates from the standard FOPI, integer PID, or PI-PD controllers with the same or fewer tuning parameters. The efficacy of a tri-parametric fractional-order controller is examined on a two-area inter

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尹, 延松. "Research on VIENNA Rectifier Based on FPID Controller Optimized by GA Algorithm." Journal of Electrical Engineering 04, no. 02 (2016): 117–25. http://dx.doi.org/10.12677/jee.2016.42015.

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