Research Areas

Graduate Program in Electrical Engineering of EESC – USP

Research Areas

  • 1.1 Analysis and Processing of Medical Images
    (Professors Homero Schiabel, Liliane Ventura, and Marcelo Andrade da Costa Vieira)

    Development of algorithms for analysis and processing of medical images. Aplications for nodule and microcalcification recognition in mammography. Evaluation of X-ray sensors and development of digital devices to measure KVP, current, exposition time and dosing of X-ray systems. Processing of simulation programs in Ophtalmology. The research activities in this area include:

          • Evaluation of X-ray medical devices for quality control;
          • Characterization of the optimal region in mammographical systems;
          • Classification of microcalcifications in mammographical images;
          • Development of CAD schemes for detection and analysis of of mamary microcalcifications;
          • Development of computerized schemes to support cancer diagnosis in dense breasts;
          • Formation of databases of digital medical images;
          • Modeling and quality control of radiological systems;
          • Processing and analysis of topographical images of the human eye;
          • Image processing, simulation, identification and claassification of eye pathologies.

     

    1.2 Computer Vision
    (Professors Adilson Gonzaga; Evandro Luis Linhari Rodrigues)

    Development of hardware and software for digitalization, visual inspection, analysis and image recognition. Development of systems for automation, graphical resources and algoriths for the treatment of visual information and study of new methods. The main research activities in this area are focused in:

          • Hypermedia and telesupervision through computer networks;
          • Automatic visual inspection for quality control;
          • Architectures and subsystems dedicated to real-time computational vision;
          • Determination of movement in image sequences;
          • Use of digital signal processors in computational vision;
          • Merger of satellite images from the meteorological viewpoint.

     

    1.3 Sensors and Electronic Instrumentation

    1.3.1. Sensors
    (Professors Carlos Dias Maciel; Luiz G. Neto; Murilo A.Romero; Ruy A.C. Altafim,)

    The research area of sensors and instrumentation is characterized by the study and the development of optical and/or electronic sensors and by the development of instrumentation targeting several applications.

          • Sensors with optical fibers;
          • Current and voltage sensors for high voltage transmission lines;
          • Sensors in integrated optics;
          • Design and characterization of opto-electronic pressure sensors in the Mach-Zehnder configuration over silicon substract;
          • Piezoelectric sensors: development of biomedical transducers.

     

    1.3.2. Instrumentation using Signal Processing
    (Professors Carlos Dias Maciel; Liliane Ventura)

    In this area, the development of systems using new technologies of customized integrated circuits and dedicated processors, including microcontrollers and signal processors are approached. Among the developed activities are:

          • Instrumentation using DSPs;
          • Implementation of integrated circuits to perform inherent functions of a DSP;
          • Measurement system for the study of hydrological variables;
          • Digital circuit design using VHDL;
          • Design and optimization of analog circuits;
          • Researches and development of supporting equipment for diagnosis and cirurgy in Ophtalmology;
          • Instrumentação utilizando DSPs;

  • 2.1 Control Systems
    (Professors Marco Henrique Terra, Rodrigo Andrade Ramos, Vilma Alves de Oliveira)

    The researches developed in this area include modeling of dynamic systems, design and implementation of control systems for linear and nonlinear systems. Applications in robotics and automation of industrial systems, among others, are developed. The main researches developed are related to the following themes:

          • Control of systems with uncertainties;
          • Investigation of stability and performance robustness of dynamic systems;
          • Fuzzy modeling and control;
          • Development and implementation of industrial controllers;
          • Detection, fault diagnosis and control of manipulator robots;
          • Integrated analysis and control systems for populations of parasite plants.

     

    2.2 Power Electronics and Electric Machine Starting
    (Professors Azauri A.Oliveira Jr.; Manoel L. Aguiar)

    This research area is multidisciplinary, involving knowledge of converters, circuits and control. The main research themes are concentrated in:

          • Control of induction motors: field acceleration methods (FAM);
          • Study of algorithms and strategies for parametric identification of three-phase induction motors;
          • Investigation of complex dynamic systems applied to modeling of induction motors;
          • Strategies for simulation of electric machines in Matlab/Simulink;
          • Implementation of three-phase inverters with vector pulse width modulation;
          • Implementation of AC servo-positioning devices with induction motors;
          • Micro-processed starting of static converters;
          • Starting and control of synchronous permanent magnet servo-motor with trapezoidal flux distribution (DC brushless servo-motors);
          • Modeling and simulation of induction motors through complex dynamic systems;
          • Power electronics applied to power quality;
          • Soft-start motor starting;
          • Starting of linear induction motors using electronic inverters;
          • Modeling, simulation and testing in conventional and written-pole technology induction motors.

     

    2.3 Intelligent Automation of Processes and Systems
    (Professors Ivan Nunes da Silva; Marco Henrique Terra)

    The research activities in this area comprise the development, implementation, analysis and evaluation of intelligent system architectures that can be used in processes and applications involved with industrial automation and with electrical power system. Within this context, the developed researches are categorized in the following themes:

          • Intelligent systems for industrial automation;
          • Development of intelligent architectures applied to power systems;
          • Intelligent identification and control of processes, manipulator robots and mobile robots;
          • Pattern recognition and system optimization;
          • Modeling and simulation of electrical machines and equipment;
          • Development of models of artificial neural networks, fuzzy systems and evolutionary computing;
          • Naviagtion of AGV in dynamic and initially unknown environments.

     

    2.4. Modeling of Biological Systems
    (Professor Carlos Dias Maciel)

    Development and study of models of biological systems and determination of its characteristic parameters targeting their dynamic interpretation. Determination of the features of normal and dysfunctional systems with the objective of suggesting therapies

          • Modeling of the vocal apparatus;
          • Interaction of mechanical waves with biological tissue.

  • 3.1 Planning in Electric Power Systems
    (Professor Eduardo Nobuhiro Asada)

    Study and development of techniques for electro-energetical planning of hydrothermal electric power systems; planning of generation expansion, applications of artificial intelligence in electrical power systems and flood control. The reserach activities in this theme include:

          • Application of artificial intelligence in operation planning;
          • Study and control of floods;
          • Geoprocessing applied to electrical power systems;
          • Planning of generation expansion in electrical power systems;
          • Planning of electro-energetical operation of hydrothermal electric power systems.

     

    3.2 Optimization of Electric Power Systems under Steady-State Conditions
    (Professors Geraldo R. M. da Costa, Eduardo N. Asada)

    The main activities developed in this research topic involve studies in optimization of electric power yystems under steady-state conditions. The studied themes include:

          • Optimal power flow;
          • Economic dispatch;
          • Optimal dispatch of reactive power;
          • Sensitivity analysis.

     

    3.3 Electric Power Systems Operation
    (Professors João Bosco A.London Jr.; Luis Fernando Costa Alberto ; Newton Geraldo Bretas ; Rodrigo Andrade Ramos)

    The activities developed in this research topic involve studies on the operation of power systems in general. The studied themes include:

          • Network observability;
          • Reliability of a measurement set;
          • Stability studies of electric power systems (transient, small-signal, and voltage stability);
          • Dynamic security analysis and control of electrical power systems;

     

    3.4 Digital Protection of Electric Power Systems
    (Professors Denis V. Coury, Mário Oleskovicz, José Carlos M. Vieira Jr.)

    Development of software for digital protection of several elements of an electrical power systems, according to the tendency of substation automation. Application of algorithms for simulation of systems under fault conditions. This theme involves mainly

          • Adaptive digital protection;
          • Neural networks applied to problems of protection systems;
          • Studies of algorithms for fault location in transmission lines;
          • Studies of transients in electric power systems;
          • Simulation of electric power system under fault conditions.

     

    3.5 High Voltage
    (Professor Ruy A.C. Altafim)

    Studies of causes for overvoltages and damages to electric power systems such as lightning strikes, short circuits and maneuvers. Development of new techniques for tests, measurements in high voltages and grounding of systenms. This theme involves mainly:

          • Equipment for characterization of electrostatics in insulators;
          • Studies in liquid, solid and gas dielectrics;
          • Grounding and soil stratification systems;
          • Measurement of currents and voltages in transmission and distribution networks using electro-optical systems;
          • Studies of voltages induced by lightning strikes in distribution lines;
          • Analysis of insulating materials and mapping of electric and magnetic fields.

  • 4.1 Devices and Components for Telecommunication Systems
    (Professors Amílcar C. César; Ben-Hur V. Borges; Luiz Gonçalves Neto; Murilo A. Romero; Mônica L. Rocha)

    Study, design and characterization of devices and components for telecommunication systems for the microwave band, milimetric waves and optical frequencies; development of software for planning and evaluation of WDM and SDH optical communication systems, mobile communication and others.

          • Analysis of devices for optical communication;
          • Integrated semiconductor devices and circuits;
          • Implementation of difractive optical microelements.

     

    4.2 Telecommunication Networks
    (Professors Amílcar C. César; Ben-Hur V. Borges; Mônica L. Rocha; Murilo A. Romero)

    Analysis of innovative configurations, protocols and topologies in telecommenication networks. The studied themes include:

          • Algorithms for routing and innovative architectures in telecommunication networks;
          • Modeling of CDMA optical networks.