23 papers · ranked by Valyu relevance
Maurice Filo, Sant Kumar, Mustafa Khammash
Proportional-Integral-Derivative (PID) feedback controllers are the most widely used controllers in industry. Recently, the design of molecular PID-controllers has been identified as an important goal for synthetic biology and the field of cybergenetics. In this paper, we consider the realization of PID-controllers via…
Hugh L. Kennedy
Two ways of designing low-order discrete-time (i.e. digital) controls for low-order plant (i.e. process) models are considered in this tutorial. The first polynomial method finds the controller coefficients that place the poles of the closed-loop feedback system at specified positions for adroit controls, i.e. for a…
Emmanouil Alexis, Luca Cardelli, Antonis Papachristodoulou
Effective and robust regulation of biomolecular processes is crucial for designing reliable synthetic bio-devices functioning in uncertain and constantly changing biological environments. Proportional-Integral-Derivative (PID) controllers are undeniably the most common way of implementing feed-back control in modern…
Maurice Filo, Mucun Hou, M. Khammash
Efficient regulation of cellular processes is essential for both endogenous and synthetic biological processes. The design of biomolecular feedback controllers that achieve robust and timely regulation is the subject of considerable research at the interface between synthetic biology and control theory. Integral…
Aidar Zhetessov, Nathan Petersen
— Modeling and comprehensive analysis of the Active Front-End (AFE) rectifier is addressed in this work. The particular emphasis is on the comparison of two state feedback control frameworks: state-space and frequency domain. The equivalence of both frameworks for the AFE case was shown. Moreover, analytical relations…
Davide Salzano, Barbara Shannon, Claire Grierson, Lucia Marucci + 2 more
Cybergenetics, an emerging discipline straddling synthetic biology and control engineering, seeks to harness feedback control mechanisms for engineering reliable synthetic biological circuits that dynamically regulate target gene expression within host organisms. Current approaches, including embedded control…
Svenja Drücker, Lukas Lanza, Thomas Berger, Timo Reis + 1 more
'Robert Seifried'] Current engineering design trends, such as light-weight machines and humanmachine-interaction, often lead to underactuated systems. Output trajectory tracking of such systems is a challenging control problem. Here, we use a twodesign-degree of freedom control approach by combining funnel feedback…
Sayed Naseel Mohamed Thangal, Heather L. More, C. David Remy, J. Maxwell Donelan
Animals rely on both feedforward and feedback control for perturbation responses. When comparing animals of different sizes, we find that several features that affect perturbation responses change—larger animals have longer sensorimotor time delays, heavier body segments and proportionally weaker muscles. We used…
Farhan Zafar, Suheel Abdullah Malik, Tayyab Ali, Amil Daraz + 4 more
'Abdul Rahman Afzal' 'Farkhunda Bhatti' 'Irfan Ahmed Khan' 'Lalit Chandra Saikia'] In this paper, we propose two different control strategies for the position control of the ball of the ball and beam system (BBS). The first control strategy uses the proportional integral derivative-second derivative with a proportional…
Julio E. Normey‐Rico, Marcelo Menezes Morato
In this article, we discuss a novel education approach to control theory in undergraduate engineering programs. In particular, we elaborate on the inclusion of an introductory course on process control during the first years of the program, to appear right after the students undergo basic calculus and physics courses.…
Vittoria Martinelli, Davide Salzano, Davide Fiore, Mario di Bernardo
We propose a multicellular implementation of a classical PD feedback controller to regulate gene expression in a microbial consortium. The implementation involves distributing the proportional and derivative control actions between two different cellular populations that can communicate with each other and regulate the…
Jubong Lee, Jinseo Hong, Kyihwan Park, Luca Fiorani
An FMCW LiDAR (frequency-modulated continuous-wave light detection and ranging) is a sensor that can measure distance using optical interference frequency ( $f_{b}$). This sensor has recently attracted interest because it is robust to harsh environmental conditions and sunlight due to the wave properties of the laser.…
Jie Yuan, Haitao Wu, Yanding Qin, Jianda Han + 3 more
'Chunli Zhang' 'Jianguo Chen'] Piezoelectric actuators (PEAs) are widely used in many nano-resolution manipulations. A PEA’s hysteresis becomes the main factor limiting its motion accuracy. The distinctive feature of a PEA’s hysteresis is the interdependence between the width of the hysteresis loop and the frequency or…
Anton V. Proskurnikov, Alexander Medvedev
— The Impulsive Goodwin's Oscillator (IGO) is a mathematical model of a hybrid closed-loop system. It arises by closing a special kind of continuous linear positive timeinvariant system with impulsive feedback, which employs both amplitude and frequency pulse modulation. The structure of IGO precludes the existence of…
Gengjin Shi, Shaojie Liu, Donghai Li, Yanjun Ding + 1 more
Reference Tracking Performance and Disturbance Rejection Performance Authors: ['Gengjin Shi' 'Shaojie Liu' 'Donghai Li' 'Yanjun Ding' 'YangQuan Chen'] This paper deals with the conflict between the input-output response and the disturbance-output response, which cannot be completely eliminated by traditional and…
Benjamin Campbell, Huai-Ti Lin, Holger Krapp
Biological systems have evolved to perform high-speed voluntary movements whilst maintaining robustness and stability. This paper examines a control architecture based on the principles of efference copies found in insect sensorimotor control which we call the inner-outer loop (IOL) controller. Within a control…
Yan Liu, Yan Huang, He Zhang, Qiang Huang
In the paper, adaptive neural fuzzy (ANF) PID control is applied on the stability analysis of phase-shifted full-bridge (PSFB) zero-voltage switch (ZVS) circuit, which is used in battery chargers of electric vehicles. At first, the small-signal mathematical model of the circuit is constructed. Then, by fuzzing the…
Chunki Yiu, Yiming Liu, Wooyoung Park, Jian Li + 13 more
'Kuanming Yao' 'Yuyu Gao' 'Guangyao Zhao' 'Hongwei Chu' 'Jingkun Zhou' 'Dengfeng Li' 'Hu Li' 'Binbin Zhang' 'Lung Chow' 'Ya Huang' 'Qingsong Xu' 'Xinge Yu'] Unmanned aerial vehicles have undergone substantial development and market growth recently. With research focusing on improving control strategies for better user…
Authors not listed
This paper presents an empirical comparison of process control algorithms, with particular emphasis on classical Proportional–Integral–Derivative (PID) control, Model Predictive Control (MPC), and neural network-based methods in the context of complex industrial plants. Since industrial sectors frequently demand…
Chong Li, Liang Shen, Jiang Shao, Jiwen Fang + 2 more
'Roman A. Surmenev'] In order to improve the vibration suppression effect of the flexible beam system, active control based on soft piezoelectric macro-fiber composites (MFCs) consisting of polyimide (PI) sheet and lead zirconate titanate (PZT) is used to reduce the vibration. The vibration control system is composed…
Aliye Hazal Koyuncu, Jacopo Movilli, Sevil Sahin, Dmitrii V. Kriukov + 2 more
This work describes a competing activation network, which is regulated by chemical feedback at the liquid-surface interface. Feedback loops dynamically tune the concentration of chemical components in living systems, thereby controlling regulatory processes in neural, genetic, and metabolic networks. Advances in…
Yoav Vered, Stephen J. Elliott
This paper describes the design of a robust controller for position control in systems with sandwiched backlash. The backlash, which is nonsmooth and nonlinear, is inevitable in the operation of many systems, but it can have destructive effects on the stability and performance of feedback systems. In this work, a…
Authors not listed
Photocatalysis enables valuable reactions such as synthetic transformations or energy conversion processes like water splitting. To rationally improve photocatalytic reactions, mechanistic insights are required. These can be obtained with kinetic measurements, which are, however, difficult to obtain for a large enough…