Browsing by Author "Ablay, Gunyaz"
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Cascade Control of Magnetic Levitation with Sliding Modes
Eroglu, Yakup; Ablay, Gunyaz (E D P SCIENCES, 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE, 2016)The effectiveness and applicability of magnetic levitation systems need precise feedback control designs. A cascade control approach consisting of sliding mode control plus sliding mode control (SMC plus SMC) is designed ... -
Cascade sliding mode-based robust tracking control of a magnetic levitation system
Ablay, Gunyaz; Eroglu, Yakup (SAGE PUBLICATIONS LTD1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND, 2016)Magnetic levitation systems are able to provide frictionless, reliable, fast and economical operations in wide-range applications. The effectiveness and applicability of these systems require precise feedback control designs ... -
Chaos in PID Controlled Nonlinear Systems
Ablay, Gunyaz (SPRINGER SINGAPORE PTE LTD, #04-01 CENCON I, 1 TANNERY RD, SINGAPORE 347719, SINGAPORE, 2015)Controlling nonlinear systems with linear feedback control methods can lead to chaotic behaviors. Order increase in system dynamics due to integral control and control parameter variations in PID controlled nonlinear systems ... -
Chaotic Map Construction from Common Nonlinearities and Microcontroller Implementations
Ablay, Gunyaz (WORLD SCIENTIFIC PUBL CO PTE LTD5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE, 2016)This work presents novel discrete-time chaotic systems with some known physical system non-linearities. Dynamic behaviors of the models are examined with numerical methods and Arduino microcontroller-based experimental ... -
Coefficient ratios-based robust sliding surface and integral sliding mode control designs with optimal transient responses
Ablay, Gunyaz (WILEY, 2014)A coefficient ratio-based sliding surface algorithm and an integral sliding mode control approach are proposed for multivariable dynamical systems. The sliding surface design problem is reduced to the specification of the ... -
Design and real-time implementation of a sliding mode observer utilizing voltage signal injection and PLL for sensorless control of IPMSMs
Ates, Ertugrul; Tekgun, Burak; Ablay, Gunyaz; Barut, Murat (ELSEVIER, 2024)In this study, a sliding mode observer (SMO) based on high-frequency (HF) voltage signal injection and a phase-locked loop (PLL) is proposed for estimating the extended electromotive force (EEMF), rotor position, and rotor ... -
Design, modeling, and control of a horizontal magnetic micromanipulator
Ablay, Gunyaz; Boyuk, Mustafa; Icoz, Kutay (SAGE PUBLICATIONS LTD, 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND, 2019)Magnetic micromanipulators with a wide range of force generating capabilities are able to manipulate micron size particles for various applications and measurements. These magnetic particles can be coated with receptors ... -
Elektromanyetik Levitasyon ile Çalışan Biyosensör- Mikrorobot Sistemlerinin Geliştirilmesi ve Kontrolü
Ablay, Gunyaz; İçöz, Kutay (TUBİTAK, 2020)Bu arastırma mikron seviyesinde hareket etme yetenegine sahip manyetik levitasyon ile çalısan biyosensör-mikrorobot tasarımını gerçeklestirmeye çalısmaktadır. Manyetik levitasyon teknigi, mikro/nano manyetik parçacıklar ... -
Feedback controller designs for an electromagnetic micromanipulator
Boyuk, Mustafa; Eroglu, Yakup; Ablay, Gunyaz; Icoz, Kutay (SAGE PUBLICATIONS LTD, 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND, 2019)Magnetic micromanipulators are capable of generating wide range of magnetic forces to manipulate magnetic microparticles for biomedical applications. In this study, a multipole magnetic micromanipulator system including ... -
A generalized PID controller for high-order dynamical systems
Ablay, Gunyaz (SLOVAK UNIV TECHNOLOGYFAC ELECTRICAL ENGINEERING & INFORMATION, ILKOVICOVA 3, BRATISLAVA 812 19, SLOVAKIA, 2021)This paper introduces a generalized PID type controller for controlling high-order dynamical systems. An optimal generalized PID control design method is developed to provide a simplified high-order output feedback control ... -
A horizontal magnetic tweezer for single molecule micromanipulations
Ablay, Gunyaz; Boyuk, Mustafa; Eroglu, Yakup; Icoz, Kutay (IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2018)Magnetic tweezers are able to manipulate cells or biomolecules for various applications and measurements. In this work, a horizontal magnetic tweezer is designed, modeled and controlled for single molecule manipulations. ... -
Key role of high-T-c twinned martensitic materials to gain a magnetic actuation higher than 15%
Sarli, Numan; Paran, Nejdet; Ablay, Gunyaz; Ocak, Hamza Y.; Yildiz, Yasin G.; Yildiz, Gokcen D.; Yagci, Nermin K. (ELSEVIER SCIENCE SAPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2021)Twinning angle outcomes of the twinned martensitic (TM) and detwinned martensitic (DTM) structural transformations on the magnetic features of the austenite (A) parent phase are researched by using the effective field ... -
A model-free continuous integral sliding mode controller for robust control of robotic manipulators
Ablay, Günyaz (Intelektual Pustaka Media Utama, 2023)This paper proposes a model-free continuous integral sliding mode controller for robust control of robotic manipulators. The highly nonlinear dynamics of robots and load disturbances cause control challenges. To achieve ... -
Model-Free Controller Designs for a Magnetic Micromanipulator
Ablay, Gunyaz (ASMETWO PARK AVE, NEW YORK, NY 10016-5990, 2021)An optimal model-free controller and a linear controller are designed and applied to a horizontal magnetic micromanipulator for controlling microparticles in a liquid environment. An input-output relation based model for ... -
A modeling and control approach to advanced nuclear power plants with gas turbines
Ablay, Gunyaz (PERGAMON-ELSEVIER, 2013)Advanced nuclear power plants are currently being proposed with a number of various designs. However, there is a lack of modeling and control strategies to deal with load following operations. This research investigates ... -
MODELING AND SIMULATION OF ADVANCED NUCLEAR REACTORS
Ablay, Gunyaz (IEEE, 2013)Advanced nuclear power plants are currently being proposed with a number of various designs. However, there is a lack of modeling and control strategies to deal with load following operations. This research investigates ... -
New 4D and 3D models of chaotic systems developed from the dynamic behavior of nuclear reactors
Ablay, Gunyaz (AIP Publishing, 2022)The complex, highly nonlinear dynamic behavior of nuclear reactors can be captured qualitatively by novel four-dimensional (that is, fourth order) and three-dimensional (that is, third order) models of chaotic systems and ... -
Novel chaotic delay systems and electronic circuit solutions
Ablay, Gunyaz (SPRINGER, 2015)Chaotic delay systems are abundant in nature and play a significant role in engineering applications and in describing global behaviors of physical systems. This work presents novel first-order chaotic delay systems ... -
An Observer-Based Fault Diagnosis in Battery Systems of Hybrid Vehicles
Ablay, Gunyaz (IEEE, 2013)Hybrid electric vehicles (HEVs) currently use Nickel-Metal Hydride (Ni-MH) batteries which have advantages of design flexibility, superior power, environmental acceptability and recyclability, long life, wide-range operating ... -
Online Condition Monitoring of Battery Systems With a Nonlinear Estimator
Ablay, Gunyaz (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2014)The performance of batteries as uninterruptable power sources in any industry cannot be taken for granted. The failures in battery systems of safety-related electric systems can lead to performance deterioration, costly ...