Infrastructure
The Graduate Program in Electrical Engineering at UFJF is currently installed in a two-story building with a total area of 1500 square meters. In this area are found all Postgraduate laboratories, two classrooms – equipped with multimedia resources, an amphitheater with multimedia resources with 50 seats, a video conference room, the IEEE student branch section, the CAPES PET program, 18 teachers’ rooms, and a 20 square meter secretariat, with a secretary for exclusive assistance to the postgraduate course.
Summary
- Library
- Electrical Engineering Computer Laboratory (LACEE)
- Photovoltaic Energy Laboratory (LABSOLAR)
- Signal Processing and Telecommunications Laboratory (LAPTEL)
- Power Systems Laboratory (LABSPOT)
- Power Electronics and Automation Nucleus Laboratory (NAEP)
- Laboratory of the Modern Lighting Nucleus (NIMO)
Library
The administration of the UFJF Library System is carried out by the Knowledge Diffusion Center, which is responsible for a Central Library and 11 Sector Libraries. All these units are connected to the worldwide computer network, with 70 computers at the University Library’s Infocenter, through which users access the internet and the collection, and another 08 computers that only allow access to the collection.
In Sector Libraries, there are 300 computers, distributed in “Infocentros” of the Academic Units, with access to the internet and to the library collection. A privileged condition of the UFJF, all computers on the campus access the CAPES portal, which constitutes a considerable reinforcement for the research. There are books, reference works, periodicals, theses, monographs in the collection of the system’s libraries. The number of works in the system is 63,467 titles and 181,046 copies. The Periodicals Center, in the process of being organized, will house from 800 to 1000 titles.
Some peculiarities of these Libraries can be highlighted:
1- Central Library – located on the campus of the Federal University of Juiz de Fora. Its collection serves the various courses given by the various UFJF Units. Its area is approximately 800 square meters. Its collection in electrical engineering, mathematics, physics, and related fields has approximately 1000 books.
2- Sectoral Library of the Exact Sciences Institute of the Federal University of Juiz de Fora – ICE/UFJF – is located in the Exact Sciences Institute, on the third platform of the UFJF University Campus. Its collection serves the various courses taught by ICE, such as Physics, Mathematics, Chemistry, and the basic cycle of the Electrical Engineering course, which corresponds to the first four periods. Its area is approximately 200 square meters. Its collection in electrical engineering, mathematics, physics, and related fields has approximately 450 books.
3- Sectoral Library of the Faculty of Engineering of UFJF – located in the Faculty of Engineering, occupying an area of approximately 300 square meters. It serves students and professors from the Civil Engineering, Electrical Engineering, and Production Engineering courses. Its collection consists of conventional engineering books and periodicals. Its collection in electrical engineering, mathematics, physics, and related fields has approximately 400 books.
4- Through an agreement with FAPEMIG in 2007 and 2008, it was possible to acquire works for the Postgraduate Course in Electrical Engineering in the order of R$ 16,000.00, which will continue to favor the evolution of disciplines and research.
Electrical Engineering Computer Laboratory (LACEE)
Room Number: 430 – http://watt.lacee.ufjf.br
1 – Area: 250 m²
2 – Main Instruments and Equipment
2.1 – Microcomputers: 36 (thirty-six) Pentium IV
2.2 – HP DraftPro Plus Standard Plotter A 1HUBS 3 with 24-port connection
2.3 – Epson LQ-520 Plus
2.4 – Epson FX 8000
2.5 – HP LaserJet 4L Plus
2.6 – 33″ TV sets for special classes
3 – Operating Systems:
3.1 – Linux
3.2 – Windows 2000
4 – Computational Packages:
4.1 – Microsoft Office
4.2 – Microsoft Visual Basic
4.3 – Corel Draw 5.0
4.4 – Borland Pascal
4.5 – Microsoft Fortran
4.6 – Borland C
4.7 – Microsoft Visual C++
4.8 – AutoCad R12
5 – Use
It serves master’s and doctoral students taking courses, undergraduate students, and professors in the Electrical Engineering course.
Photovoltaic Energy Laboratory (LABSOLAR)
The photovoltaic electricity generation laboratory is composed of a photovoltaic solar power plant, located at the Faculty of Engineering, with an approximate capacity of 30 kWp (Watt-peak). This power is converted from 264 photovoltaic panels of the SX 120U model grouped into 11 independent modules (arrays) with a capacity of 98V/30A per module.
The solar energy converted by the modules is conditioned by static power converters before being injected into the local electrical distribution network. Seven “boost” DC-DC converters process the electrical energy coming from the photovoltaic solar panels feeding a DC bus to which two three-phase DC-AC converters are connected. Three-phase DC-AC converters have their AC terminals connected in parallel with the mains through two banks of three-phase transformers. A pulse width modulation (PWM) technique with harmonic elimination is used to ensure the generation of a switched AC voltage with low harmonic content.
All static converters are controlled by digital signal processors (DSP) and as the power converted by the photovoltaic panels depends on the insolation, the control algorithms developed to allow the CC-AC converters to also operate as static compensators, injecting or absorbing reactive power on the campus network.
1- Area: 1500 m²
2- Labsolar’s Main Instruments/Equipment:
2.1- 264 BPSolar model SX 120U photovoltaic panels;
2.2- two 220V/200A VSI inverters;
2.3- seven 3kW / 100V DC-DC converters;
2.4- five TMS320F243 DSPs from Texas Instruments;
2.5- six single-phase 220V/110V 7.5 kVA/each transformers;
2.6- a bank of lead-acid batteries with 48V and 500Ah capacity.
3- Use:
3.1- The photovoltaic energy laboratory serves postgraduate and scientific initiation activities focused on the development of control techniques and impact assessment of electric energy generation systems, based on photovoltaic solar panels.
Signal Processing and Telecommunications Laboratory (LAPTEL)
Room Number 2 – Shed III (Masters in Electrical Engineering)
LAPTEL serves graduate students in the areas of Instrumentation, Signal Processing, and Telecommunications.
Computers are used for the development of research by masters and scientific initiation students, relying on software such as Matlab, ORCAD, and LabVIEW, which are fundamental for the development of works in the areas of instrumentation, signal processing, and electronics. For the implementation of algorithms and real-time testing, DSPs and FPGAs development boards have been used, making it possible to implement the algorithms developed in the areas of Power Quality, Data Communication, and Instrumentation. Equipment such as oscilloscopes, spectrum analyzers, and digital multimeters are essential for analyzing the signals and results obtained by the algorithms and circuits implemented in the laboratory. Finally, the laboratory also has the necessary tools for the implementation of simple circuits and prototypes that are fundamental in the development of works in Power Electronics and Instrumentation.
1 – Area: 70 m²
2 – Main Instruments/Equipment:
2.1- Two Tektronix TDS 320-100 MHz Oscilloscopes with RS232, Centronics, GPIB outputs
2.2 – A Tektronix TDS 524A-500MHz Oscilloscope with drive 31/2, RS232, Centronics, GPIB outputs
2.3 – A Tektronix PRISM 3001 GPX Logic Analyzer
2.4 – One workstation DEC 2000/300 AXP 32MB RAM
2.5 – 24 Pentium dual-core microcomputers or similar
2.6 – An HP 2100 PS Laser Printer
2.7- Four Texas Instrument DSP Boards TMS320F243
2.8 – Three DSP TMS boards
2.9 – One TMS320C30 Texas Instruments DSP board
2.10 – Two PCL 818 100kHz DA digital signal acquisition boards
2.11- Two PCL 725 Relay/Isol digital signal acquisition boards
2.12 – Two PCL 728 Isol./DA digital signal acquisition boards
2.13 – Five Goldstar Digital Multimeters
2.14 – Two CFG125 2MHz Function Generators – 250TW25358 Tektronix
2.15 – Miscellaneous (tools, soldering irons, suckers, basic components, fonts, Data-Books, etc)
2.16 – A Rohde&Shwarz vector signal generator, 3.2 GHz
2.17 – A Rohde&Shwarz vector signal generator, 6 GHz
2.18 – A Rohde&Shwarz Signal Generator, UWB
2.19 – Two high-performance data acquisition systems (DAC 200MMHZ, ADC 300MHZ)
2.20 – A Rohde&Shwarz 3 GHz signal analyzer
2.21 – A Rohde&Shwarz 3.6 GHz signal analyzer
2.22 – A Rohde&Shwarz vector network analyzer
2.23 – A Rohde&Shwarz EMC/EMI analyzer up to 3 GHz (antennas and lisne)
2.24 – An Agilent 102-Channel Logic Analyzer
2.25 – An Agilent 1GHz Oscilloscope
3 – Use
3.1 – Circuit simulation
3.2 – Editing of scientific articles
3.3 – Dissertation research
3.4 – Prototype assembly
3.5 – Basic tests of electronic circuits
3.6 – Cooperation with Industry
3.7 – Development of recommended prototypes
3.9 – Assembly Simulation/Emulation of Microprocessors and Microcontrollers
3.10 – Hardware development of Tx and Rx telecommunications equipment
3.11 – Simulation of communication systems
3.12 – Modeling of communication systems
3.13 – Thesis research
Power Systems Laboratory (LABSPOT)
Room Number 4 – Shed III (Masters in Electrical Engineering)
In 2008, LABSPOT underwent necessary changes to accommodate the growth of research groups in the Electric Power Systems Area. These changes are summarized below:
1) The area was renovated and a new layout was created so that the number of effective stalls serving master’s and scientific initiation students grew from 16 to 31, initially being sufficient to accommodate doctoral students. The layout reform also improved the air conditioning features, allowing the same number of air devices to serve the new compartments created.
2) Microcomputers had updated motherboards, processors, and increased memory. All microcomputers have at least 512 Mb of memory and the vast majority have 2.2 GHz duo core CPUs, being able to process any application commonly used in electrical engineering.
3) A TCP/IP network printer was installed which is located in a central location, providing support to users.
4) The RJ45 wired network was replaced by wireless networks that allowed for greater visual cleanliness and simplicity without loss of network performance, which communicates at 108 Mbits per second. To this end, three wireless routers were installed that promote three virtual networks, one in each physical section of the LABSPOT. This procedure made several IP addresses free and that can be made available for other more specific applications. Another advantage is the possibility that registered laptops can be connected to existing networks.
5) There was a reform of the electrical network aiming at better lighting and power outlets for microcomputers.
6) Old routers and hubs were replaced with only a newer and more reliable router. The fiber optic coupling service has become much simpler.
1. Area: 200 m² divided into 31 bays.
2. Main Instruments and Equipment:
2.1 – twenty-four (24) Intel core-duo 2.82 GHz or Pentium IV microcomputers with a minimum of 512 Mb of RAM;
2.2 – 01 (one) 3.2 GHz Pentium IV server;
2.3 – 01 (one) Lexmarc T430 network printer;
2.4 – Wireless network through three wireless routers.
3. Operating Systems:
3.1 – Linux
3.2 – Windows 2000
4 – Computational Packages:
4.1 – Microsoft Office;
4.2 – MATLAB;
4.3 – Microsoft Visual Basic;
4.4 – Borland Pascal;
4.5 – Microsoft Fortran;
4.6 – Borland C;
4.7 – Microsoft Visual C++.
4.8 – Computational and academic models of Electrical Network Analysis by CEPEL (ANAREDE, ANAFAS, ANATEM, PACDIN)
5 – Use:
It serves Master and Doctoral students in Electrical Engineering in the Electrical Energy Systems and Scientific Initiation Projects that require computational resources.
Power Electronics and Automation Nucleus Laboratory (NAEP)
The NAEP laboratory serves postgraduate and scientific initiation activities in Electrical Engineering with a focus on automation systems and systems involving power electronics. Computational modeling of automation systems, electronic drives of electrical machines, and power electronics applications in power systems is carried out, using tools such as ATP/EMTP, PSCAD/EMTDC, PSpice, Matlab, PSIM, among others.
Tests, prototype construction, and validation of new static converter proposals are carried out on the benches, using equipment such as oscilloscopes, voltage, and current probes, among others, for all types of analysis.
The NAEP laboratory can work on the development and analysis of typical power electronics circuits that find use in electrical energy conversion systems (inverters, multilevel converters, CC-AC, CA-DC, CC-CC, PFC converters, active filtering, etc.).
1- Area: 89 m²
2- Main Instruments/Equipment of the NAEP:
2.1- Three Pentium IV or Similar Computers;
2.2- Three Pentium III or Similar Computers;
2.3- An HP D2400 printer;
2.4- Two Automation Benches with Programmable Controllers composed of two TP-02/WEG programmable controllers, man-machine interface, programming software, three-pole contactors, thermal relays, 0.25 CV, 220/380 V three-phase motors;
2.5- A DC motor speed control bench with a micro processed AC/DC converter CTW-A03 type CTW A03.10/2.2-V2 and with a 1.0kW DC motor, 1800rpm
2.6- Two AC motor speed control benches with frequency inverter type CFW 09 6.0A/220V and 1.5cv three-phase induction motor, IV poles;
2.7- Two SCA-04 servo converter benches with SWA 56-2,5-20 servomotor from Weg;
2.8- Two soft-starter static starters from Weg, model SSW-04 with 4 CV, 220 V, 2 pole induction motors.
2.9- Two Tektronix digital oscilloscopes, isolated channel 1GS/s / 2 isolated channels, model TPS 2012
2.10- Two Semikron 220 V/120 A CC-AC static inverters
2.11- Two Weg CC-CA converters to drive 1 CV/220 V electric motors
2.12- Two digital signal microprocessors (DSP) TMS320F2812 from Texas Instruments;
2.13- Four 1 CV / 220 V / 60 Hz induction motors
2.14 – One SDK 6800 Datapool module
2.15 – Three Datapool 8440/8841 Power Electronics Kits Trigger Module and Graetz Bridge
3- Use:
3.1- Power Electronics Circuits Modeling and Simulation;
3.2- Research and Development of Static Compensators;
3.3- Construction of Prototypes and Experimental Models;
3.4- Research and development of digital converter control systems.
Laboratory of the Modern Lighting Nucleus (NIMO)
NIMO’s laboratory serves postgraduate and scientific initiation activities in Electrical Engineering (not exclusive, as it also interacts with Civil Engineering, Architecture and Urban Planning and Physics), focusing on Lighting themes, using Power Electronics. Employs concepts of Energy Efficiency in the development of systems for Testing Public Lighting Equipment, Electronic Ballasts for High and Low-Pressure Discharge Lamps, LED Lighting, Luminous Flux Measurements, Integration with Photovoltaic Systems, and Power Electronics in general.
In the laboratory, computational modeling of lighting systems based on static converters and artificial light sources is performed, using tools such as OrCAD PSpice, Matlab, Mathcad, PSIM, among others.
On the benches, constant tests and prototype construction are carried out, tests with reactors and lamps from the market or the field, acquisition of experimental data for modeling high-frequency discharge lamps and validation of new proposals for electronic ballasts, using equipment such as oscilloscopes, voltage, and current probes, among others, for all types of analysis.
The laboratory can work with a wide range of lighting systems in use today and is already working on the development of future systems, always focusing on efficiency and energy, and light qualities, in addition to working on the development and analysis of typical circuits for power electronics that find use in both lighting and power systems (resonant and non-resonant inverters, multilevel converters, DC-AC, AC-DC, CC-DC, PFC converters, active filtering, etc.).
1- Area: 45 m²
2- Nimo’s Main Instruments/Equipment:
2.1- An Acer Aspire ONE netbook – Intel Atom 1.6 GHz – 1GB (RAM) – 120GB (HD);
2.2- Five AMD Semprom microcomputers 2.01 GHz – 0.89 GB (RAM) – 80GB (HD);
2.3- One HP D2400 printer and one PSC 1315 printer;
2.4- A Tektronix 4-channel TDS5034B Oscilloscope – 300 MHz;
2.5- One Tektronix Oscilloscope 4 channels DPO 3014 – 100MHz;
2.6- An Agilent 54641D Signal Oscilloscope – 350 MHz;
2.7- An Agilent E4980A precision LCR meter;
2.8- A Homis VC2002 signal generator;
2.9- An Agilent 34410 bench digital multimeter;
2.10- An AV Power PA2200A power analyzer;
2.11- A California Instruments 9001 iX 3kV programmable three-phase source;
2.12- A low distortion AC single-phase source, 500VA tenma 72-7675;
2.13- An MD-6459 Multimeter;
2.14- A precision digital thermometer TESTO 735;
2.15- One DC power supply, 300V, 30A (own manufacture);
2.16- One isolation transformer (127V/127V – 500VA) BK Precision TR-110;
2.17- One isolation transformer 127V/220V – 500VA Girard;
2.18- Two current probes for oscilloscope – Tektronix TCP 202;
2.19- A Tektronix TCP 305 current probe, with amp. TCPA 300;
2.20- One Tektronix A622 – 100kHz current probe;
2.21- One high voltage probe (15kVdc/30kVpeak/10kV rms) – Agilent N2771A;
2.22- One High Voltage Differential Probe P5205, Teknoprobe – 1.3kV, 100Mhz;
2.23- One Varic 220V/0-300V 1.8kVA;
2.24 – One P5200 high power differential probe – 1.3kV, 100MHz;
2.25 – Electromagnetic Reactors for mercury vapor of different powers;
2.26 – Electromagnetic reactors for sodium vapor of different powers;
2.27 – Electronic Ballasts for tubular flourescent lamps of various powers;
2.28 – Twenty-six high-pressure mercury vapor lamps of different powers;
2.29 – High pressure sodium vapor lamps of different powers;
2.30 – Tubular fluorescent lamps of different powers;
2.31 – Three 160W high intensity discharge mixed lamps;
2.32 – A test bench of public lighting components (own manufacture);
2.33 – Miscellaneous Equipment (voltage probes, soldering station, tools in general, basic components, DC voltage sources, lamps and various ballasts, lighting fixtures, photoelectric relays, relay bases, etc.);
2.34 – Miscellaneous furniture (tables, chairs, owls, steel cabinets, etc.)
3- Use:
3.1- Modeling and Simulation of Lighting Circuits and Power Electronics;
3.2- Type and pre-certification tests in electromagnetic and electronic reactors;
3.3- Type and pre-certification tests in artificial light sources (several lamps);
3.4- Research and Development Applied to Efficient Lighting;
3.5- Construction of Prototypes and Experimental Models;
3.6- Modeling of Lamps and Reactors;
3.7- Detection of Defects and Failures in Lighting Systems;
3.8- Electronic and Control Circuits Tests;
3.9- Cooperation with Industry and Public Services;
3.10- Creation of New Concepts in the Lighting Area;
3.11- Development of Applicable Products in the Market;
3.12- Writing of Scientific Articles, Dissertations, Theses and Final Papers.