Sergio Llorente

ORCID: 0000-0003-4609-1254
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About
Contact & Profiles
Research Areas
  • Induction Heating and Inverter Technology
  • Advanced DC-DC Converters
  • Magnetic Properties and Applications
  • Electromagnetic Compatibility and Noise Suppression
  • Distributed Control Multi-Agent Systems
  • Robotic Path Planning Algorithms
  • Laser and Thermal Forming Techniques
  • Freezing and Crystallization Processes
  • Adaptive Control of Nonlinear Systems
  • Multilevel Inverters and Converters
  • Stability and Control of Uncertain Systems
  • Electric Motor Design and Analysis
  • Modular Robots and Swarm Intelligence
  • Optimization and Search Problems
  • Iterative Learning Control Systems
  • Video Surveillance and Tracking Methods
  • Stability and Controllability of Differential Equations
  • Robotics and Sensor-Based Localization
  • Hand Gesture Recognition Systems
  • Magnetic Bearings and Levitation Dynamics
  • Heat Transfer and Optimization
  • Human Pose and Action Recognition
  • Silicon Carbide Semiconductor Technologies
  • Robotic Locomotion and Control
  • Control and Stability of Dynamical Systems

Siemens (Spain)
2004-2023

BSH Electrodomésticos (Spain)
2004-2019

Universidad de Zaragoza
2003-2011

Siemens (Germany)
2010

BSH Home Appliances (United States)
2009

In this paper several research topics pertaining to the design and modeling of domestic induction appliances are reviewed. Each topic is summarized, stressing its most significant advances pointing future tendencies. A bibliographic review showing some published papers during last years included. The emphases relative contributions them also discussed.

10.1109/mias.2009.935495 article EN IEEE Industry Applications Magazine 2010-02-17

In this paper we present a new method for hand gesture recognition based on an RGB-D sensor. The proposed approach takes advantage of depth information to cope with the most common problems traditional video-based segmentation methods: cluttered backgrounds and occlusions. algorithm also uses colour semantic accurately identify any number hands in image. Ten different static gestures are recognised, including all combinations spread fingers. Additionally, movements open followed 6 dynamic...

10.3390/s130911842 article EN cc-by Sensors 2013-09-06

In this paper, a comparison is performed between four inverter topologies commonly used in induction cookers. The considered are the full-bridge inverter, half-bridge and two single-switch inverters. All of them designed for same specifications they compared aspects such as power device stresses, efficiency, frequency control electromagnetic emissions.

10.1109/apec.2002.989392 article EN 2003-06-25

In this paper several research topics pertaining to the design and modeling of domestic induction appliances are reviewed. Each topic is summarized, stressing its most significant advances pointing future tendencies. A bibliographic review showing some published papers during last years included. The emphases relative contributions them also discussed.

10.1109/apec.2008.4522791 article EN Conference proceedings/Conference proceedings - IEEE Applied Power Electronics Conference and Exposition 2008-02-01

Usually domestic induction appliances heat ferromagnetic pans. This technology is well known and it successfully applied by many manufacturers. However, there are a number of non-ferromagnetic pans (made aluminium, copper, copper-nickel or stainless steel) that cannot be properly heated this technology. study presents modified half-bridge series resonant inverter topology can used to means selective harmonic operation technique. The proposed has two topological configurations with modes: the...

10.1049/iet-pel.2010.0107 article EN IET Power Electronics 2011-05-06

In this paper, we address the problem of persistently covering an environment with a group mobile robots. contrast to traditional coverage, in our scenario coverage level is always changing. For reason, robots have continually move maintain desired level. context, contribution complete approach problem, including distributed estimation and control motion First, present algorithm that allows every robot estimate global function only local information. We pay special attention characterization...

10.1109/tro.2016.2602383 article EN IEEE Transactions on Robotics 2016-10-20

In this paper, a novel multiphysics and nonlinear model for electromechanical relays is presented. The electromagnetic dynamics analyzed by calculating the total reluctance of magnetic equivalent circuit (MEC), which composed fixed length iron core an angular air gap. Magnetic saturation dependency are considered in analysis. Then, energy balance over components system used to obtain torque drives movable armature. A planar mechanism four rigid bodies, including spring-damping torques that...

10.1109/tia.2016.2518120 article EN IEEE Transactions on Industry Applications 2016-01-15

Contact bounce is probably the most undesirable phenomenon of electromagnetic switches. It reduces performance relays and contactors directly related to some processes that result in destruction device. In this paper, a complete formulation problem provided new strategy inspired by run-to-run control presented for reducing contact bounce. The method, which makes use repetitive functioning these systems, highly versatile may be applied different switches under diverse operating conditions....

10.1109/tie.2016.2605622 article EN IEEE Transactions on Industrial Electronics 2016-09-01

The goal of this paper is twofold. First, we aim at investigating the potentials reset observers (ReOs) applied to process control. Second, overcome existing performance limitations temperature control in domestic cookers. To end, present an adaptive simmering for induction cookers, whose parameters are updated online, depending on estimates provided by a multiple-model ReO (MMReO). This new observer results extending idea multiple models state framework. MMReO consists reinitialized and...

10.1109/tia.2011.2161629 article EN IEEE Transactions on Industry Applications 2011-07-20

This technical note proposes a novel kind of state estimator called reset adaptive observer (ReO). A ReO is an consisting integrator and law that resets the output depending on predefined condition. The main contribution this element theory applied for first time to nonlinear framework. introduction in can decrease overshooting settling estimation process without sacrificing rising time. stability convergence LMI-based analysis proposed addressed and, additionally, easily computable method...

10.1109/tac.2011.2164819 article EN IEEE Transactions on Automatic Control 2011-08-16

An induction heating appliance designed to uniformly heat up metallic plates is studied in this paper. It consists of one planar inductor with two concentric coils attached a mechanism, which allows moving the under plate while heating. This system possible solution for growing concept flexible cooking hobs, improving their performance flexibility and thermal distribution pans. With different combinations motion selective activation coils, any pan can be heated regardless its size or...

10.1109/tia.2014.2367136 article EN IEEE Transactions on Industry Applications 2014-11-04

10.1016/j.applthermaleng.2015.09.084 article EN Applied Thermal Engineering 2015-10-07

A closed-form solution is derived for the equivalent impedance of a planar winding with cylindrical symmetry placed between two half-spaces. This basically structure domestic induction heating appliance comprised winding, metallic vessel, and lossless magnetic substrate. The first matter addressed sandwiched single-turn coil, obtained by using vector potential Helmholtz equation solution, result generalized to n-turn coils. real part this represents power dissipated in form heat. proposed...

10.1063/1.2903572 article EN Journal of Applied Physics 2008-05-15

In this paper, a pan temperature control of induction hobs is described. The aim that the user may select cooking instead power for cooker. Pan has to be estimated from thermal sensor placed under ceramic glass. Heat transmission coil and modeled using state-space model. As heating highly dependent on magnetic properties, two different adaptive schemes are proposed compared. Both guarantee proper closed loop behavior. contribution paper related with observer pans. resultant system simple,...

10.1109/tia.2009.2020189 article EN IEEE Transactions on Industry Applications 2009-01-01

This paper focuses on providing an improved and efficient alternative to electromechanical relays (EMRs) in view of the growing demand characteristics for effective power multiplexing induction heating applications. A major analytical approach design implementation bidirectional switches (BDSs) based different semiconductor technologies is presented, including thorough static dynamic characterizations. Emerging gallium nitride high-electron-mobility transistors (GaN HEMTs) silicon carbide...

10.1109/tie.2018.2838093 article EN IEEE Transactions on Industrial Electronics 2018-06-01

In this paper, a theoretical model of multiple-coil inductors supplied by resonant half-bridge inverters in induction hobs is proposed. The includes the most relevant coupling effects and allows calculation coil currents inverter's output power for any modulation parameters, even with different switching frequencies duty cycles. Furthermore, distribution pan calculated relationship powers stage obtained, so that they can be controlled to obtain homogeneous more uniform heating.

10.1109/tia.2016.2515996 article EN IEEE Transactions on Industry Applications 2016-01-08

Object recognition has been widely investigated in computer vision for many years. Currently, this process is carried out through neural networks, but there are very few public datasets available with mask and class labels of the objects training usual applications. In paper, we address problem fast generation synthetic to train models because creating a handcraft labeled dataset object segmentation tedious time-consuming task. We propose an efficient method generate that adequately combines...

10.1109/access.2020.3043256 article EN cc-by-nc-nd IEEE Access 2020-01-01

In this paper we tackle the problem of persistent coverage, where a team agents covers an area whose amount coverage degrades with time. The task is never accomplished completely due to decay and have revisit domain persistently. framework, our contribution novel approach which consists not only in developing efficient motion perform but also covering variable action. can adapt its power error actuator domain, being able reduce energy consumption error. We propose new controller for...

10.1109/cdc.2013.6760846 article EN 2013-12-01

In this paper we tackle the persistent coverage problem, that aims to maintain a desired level in an environment. The difference with traditional resides decays over time and robots must keep continuously moving level. context consider cost function quantifies quality of finite prediction horizon transform problem into discrete optimization constraints. We introduce branch-and-bound algorithm allows us find optimal solution i.e., set actions minimizes function. This includes procedure split...

10.1109/acc.2016.7526562 article EN 2022 American Control Conference (ACC) 2016-07-01
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