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Gianluca Gatto
Department of Electrical and Electronic Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy

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Journal article
Published: 24 August 2021 in Polymers
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In this study Bacillus amyloliquefaciens RK3 was isolated from a sugar mill effluent-contaminated soil and utilised to generate a potential polysaccharide with anti-Alzheimer’s activity. Traditional and molecular methods were used to validate the strain. The polysaccharide produced by B. amyloliquefaciens RK3 was purified, and the yield was estimated to be 10.35 gL−1. Following purification, the polysaccharide was structurally and chemically analysed. The structural analysis revealed the polysaccharide consists of α-d-mannopyranose (α-d-Manp) and β-d-galactopyranose (β-d-Galp) monosaccharide units connected through glycosidic linkages (i.e, β-d-Galp(1→6)β-d-Galp (1→6)β-d-Galp(1→2)β-d-Galp(1→2)[β-d-Galp(1→6)]β-d-Galp(1→2)α-d-Manp(1→6)α-d-Manp (1→6)α-d-Manp(1→6)α-d-Manp(1→6)α-d-Manp). The scanning electron microscopy and energy-dispersive X-ray spectroscopy imaging of polysaccharides emphasise their compactness and branching in the usual tubular heteropolysaccharide structure. The purified exopolysaccharide significantly impacted the plaques formed by the amyloid proteins during Alzheimer’s disease. Further, the results also highlighted the potential applicability of exopolysaccharide in various industrial and pharmaceutical applications.

ACS Style

Ravi Gangalla; Sampath Gattu; Sivasankar Palaniappan; Maqusood Ahamed; Baswaraju Macha; Raja Komuraiah Thampu; Antonella Fais; Alberto Cincotti; Gianluca Gatto; Murali Dama; Amit Kumar. Structural Characterisation and Assessment of the Novel Bacillus amyloliquefaciens RK3 Exopolysaccharide on the Improvement of Cognitive Function in Alzheimer’s Disease Mice. Polymers 2021, 13, 2842 .

AMA Style

Ravi Gangalla, Sampath Gattu, Sivasankar Palaniappan, Maqusood Ahamed, Baswaraju Macha, Raja Komuraiah Thampu, Antonella Fais, Alberto Cincotti, Gianluca Gatto, Murali Dama, Amit Kumar. Structural Characterisation and Assessment of the Novel Bacillus amyloliquefaciens RK3 Exopolysaccharide on the Improvement of Cognitive Function in Alzheimer’s Disease Mice. Polymers. 2021; 13 (17):2842.

Chicago/Turabian Style

Ravi Gangalla; Sampath Gattu; Sivasankar Palaniappan; Maqusood Ahamed; Baswaraju Macha; Raja Komuraiah Thampu; Antonella Fais; Alberto Cincotti; Gianluca Gatto; Murali Dama; Amit Kumar. 2021. "Structural Characterisation and Assessment of the Novel Bacillus amyloliquefaciens RK3 Exopolysaccharide on the Improvement of Cognitive Function in Alzheimer’s Disease Mice." Polymers 13, no. 17: 2842.

Journal article
Published: 12 June 2021 in Sensors
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We propose a device for monitoring the number of people who are physically present inside indoor environments. The device performs local processing of infrared array sensor data detecting people’s direction, which allows monitoring users’ occupancy in any space of the building and also respects people privacy. The device implements a novel real-time pattern recognition algorithm for processing data sensed by a low-cost infrared (IR) array sensor. The computed information is transferred through a Z-Wave network. On-field evaluation of the algorithm has been conducted by placing the device on top of doorways in offices and laboratory rooms. To evaluate the performance of the algorithm in varying ambient temperatures, two groups of stress tests have been designed and performed. These tests established the detection limits linked to the difference between the average ambient temperature and perturbation. For an in-depth analysis of the accuracy of the algorithm, synthetic data have been generated considering temperature ranges typical of a residential environment, different human walking speeds (normal, brisk, running), and distance between the person and the sensor (1.5 m, 5 m, 7.5 m). The algorithm performed with high accuracy for routine human passage detection through a doorway, considering indoor ambient conditions of 21–30 °C.

ACS Style

Cristian Perra; Amit Kumar; Michele Losito; Paolo Pirino; Milad Moradpour; Gianluca Gatto. Monitoring Indoor People Presence in Buildings Using Low-Cost Infrared Sensor Array in Doorways. Sensors 2021, 21, 4062 .

AMA Style

Cristian Perra, Amit Kumar, Michele Losito, Paolo Pirino, Milad Moradpour, Gianluca Gatto. Monitoring Indoor People Presence in Buildings Using Low-Cost Infrared Sensor Array in Doorways. Sensors. 2021; 21 (12):4062.

Chicago/Turabian Style

Cristian Perra; Amit Kumar; Michele Losito; Paolo Pirino; Milad Moradpour; Gianluca Gatto. 2021. "Monitoring Indoor People Presence in Buildings Using Low-Cost Infrared Sensor Array in Doorways." Sensors 21, no. 12: 4062.

Journal article
Published: 17 April 2021 in Sustainability
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The low accessibility to the information regarding buildings current performances causes deep difficulties in planning appropriate interventions. Internet of Things (IoT) sensors make available a high quantity of data on energy consumptions and indoor conditions of an existing building that can drive the choice of energy retrofit interventions. Moreover, the current developments in the topic of the digital twin are leading the diffusion of Building Information Modeling (BIM) methods and tools that can provide valid support to manage all data and information for the retrofit process. This paper shows the aim and the findings of research focused on testing the integrated use of BIM methodology and IoT systems. A common data platform for the visualization of building indoor conditions (e.g., temperature, luminance etc.) and of energy consumption parameters was carried out. This platform, tested on a case study located in Italy, is developed with the integration of low-cost IoT sensors and the Revit model. To obtain a dynamic and automated exchange of data between the sensors and the BIM model, the Revit software was integrated with the Dynamo visual programming platform and with a specific Application Programming Interface (API). It is an easy and straightforward tool that can provide building managers with real-time data and information about the energy consumption and the indoor conditions of buildings, but also allows for viewing of the historical sensor data table and creating graphical historical sensor data. Furthermore, the BIM model allows the management of other useful information about the building, such as dimensional data, functions, characteristics of the components of the building, maintenance status etc., which are essential for a much more conscious, effective and accurate management of the building and for defining the most suitable retrofit scenarios.

ACS Style

Giuseppe Desogus; Emanuela Quaquero; Giulia Rubiu; Gianluca Gatto; Cristian Perra. BIM and IoT Sensors Integration: A Framework for Consumption and Indoor Conditions Data Monitoring of Existing Buildings. Sustainability 2021, 13, 4496 .

AMA Style

Giuseppe Desogus, Emanuela Quaquero, Giulia Rubiu, Gianluca Gatto, Cristian Perra. BIM and IoT Sensors Integration: A Framework for Consumption and Indoor Conditions Data Monitoring of Existing Buildings. Sustainability. 2021; 13 (8):4496.

Chicago/Turabian Style

Giuseppe Desogus; Emanuela Quaquero; Giulia Rubiu; Gianluca Gatto; Cristian Perra. 2021. "BIM and IoT Sensors Integration: A Framework for Consumption and Indoor Conditions Data Monitoring of Existing Buildings." Sustainability 13, no. 8: 4496.

Journal article
Published: 20 July 2020 in Energies
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DC-DC converters are being used for power management and battery charging in electric vehicles (EVs). To further the role of EVs in the market, more efficient power electronic converters are needed. Wide band gap (WBG) devices such as silicon carbide (SiC) provide higher frequency and lower power loss, however, their high di/dt and dv/dt transients result in higher electromagnetic interference (EMI). On the other hand, some gate driver parameters such as gate resistor () have a contradictory effect on efficiency () and EMI. The idea of this paper is to investigate the values of these parameters using a multi-objective optimization method to optimize and EMI at the same time. To this aim, first, the effect of high and low side on and EMI in the half-bridge configuration is studied. Then, the objective functions of the optimization problem are obtained using a numerical regression method on the basis of the experimental tests. Then, the values of the gate resistors are obtained by solving the multi-objective optimization problem. Finally, and EMI of the converter in the optimum gate resistor design are compared to those in the conventional design to validate the effectiveness of the proposed design approach.

ACS Style

Milad Moradpour; Paolo Pirino; Michele Losito; Wulf-Toke Franke; Amit Kumar; Gianluca Gatto. Multi-Objective Optimization of the Gate Driver Parameters in a SiC-Based DC-DC Converter for Electric Vehicles. Energies 2020, 13, 3720 .

AMA Style

Milad Moradpour, Paolo Pirino, Michele Losito, Wulf-Toke Franke, Amit Kumar, Gianluca Gatto. Multi-Objective Optimization of the Gate Driver Parameters in a SiC-Based DC-DC Converter for Electric Vehicles. Energies. 2020; 13 (14):3720.

Chicago/Turabian Style

Milad Moradpour; Paolo Pirino; Michele Losito; Wulf-Toke Franke; Amit Kumar; Gianluca Gatto. 2020. "Multi-Objective Optimization of the Gate Driver Parameters in a SiC-Based DC-DC Converter for Electric Vehicles." Energies 13, no. 14: 3720.

Journal article
Published: 23 December 2019 in Applied Sciences
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Coumarin derivatives have gathered major attention largely due to their versatile utility in a wide range of applications. In this framework, we report a comparative computational investigation on the optoelectronic properties of 3-phenylcoumarin and 3-heteroarylcoumarin derivatives established as enzyme inhibitors. Specifically, we concentrate on the variation in the optoelectronic characteristics for the hydroxyl group substitutions within the coumarin moiety. In order to realize our aims, all-electron density functional theory and time dependent density functional theory calculations were performed with a localized Gaussian basis-set matched with a hybrid exchange–correlation functionals. Molecular properties such as highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies, vertical ionization (IEV) and electron affinity energies, absorption spectra, quasi-particle gap, and exciton binding energy values are examined. Furthermore, the influence of solvent on the optical properties of the molecules is considered. We found a good agreement between the experimental (8.72 eV) and calculated (8.71 eV) IEV energy values for coumarin. The computed exciton binding energy of the investigated molecules indicated their potential optoelectronics application.

ACS Style

Amit Kumar; Roberto Baccoli; Antonella Fais; Alberto Cincotti; Luca Pilia; Gianluca Gatto. Substitution Effects on the Optoelectronic Properties of Coumarin Derivatives. Applied Sciences 2019, 10, 144 .

AMA Style

Amit Kumar, Roberto Baccoli, Antonella Fais, Alberto Cincotti, Luca Pilia, Gianluca Gatto. Substitution Effects on the Optoelectronic Properties of Coumarin Derivatives. Applied Sciences. 2019; 10 (1):144.

Chicago/Turabian Style

Amit Kumar; Roberto Baccoli; Antonella Fais; Alberto Cincotti; Luca Pilia; Gianluca Gatto. 2019. "Substitution Effects on the Optoelectronic Properties of Coumarin Derivatives." Applied Sciences 10, no. 1: 144.

Journal article
Published: 01 August 2019 in Molecules
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Antibiotic resistance is one of the main public health concerns of this century. This resistance is also associated with oxidative stress, which could contribute to the selection of resistant bacterial strains. Bearing this in mind, and considering that flavonoid compounds are well known for displaying both activities, we investigated a series of hydroxy-3-arylcoumarins with structural features of flavonoids for their antibacterial activity against different bacterial strains. Active compounds showed selectivity against the studied Gram-positive bacteria compared to Gram-negative bacteria. 5,7-Dihydroxy-3-phenylcoumarin (compound 8) displayed the best antibacterial activity against Staphylococcus aureus and Bacillus cereus with minimum inhibitory concentrations (MICs) of 11 g/mL, followed by Staphylococcus aureus (MRSA strain) and Listeria monocytogenes with MICs of 22 and 44 g/mL, respectively. Moreover, molecular docking studies performed on the most active compounds against Staphylococcus aureus tyrosyl-tRNA synthetase and topoisomerase II DNA gyrase revealed the potential binding mode of the ligands to the site of the appropriate targets. Preliminary structure–activity relationship studies showed that the antibacterial activity can be modulated by the presence of the 3-phenyl ring and by the position of the hydroxyl groups at the coumarin scaffold.

ACS Style

Maria Barbara Pisano; Amit Kumar; Rosaria Medda; Gianluca Gatto; Rajesh Pal; Antonella Fais; Benedetta Era; Sofia Cosentino; Eugenio Uriarte; Lourdes Santana; Francesca Pintus; Maria João Matos. Antibacterial Activity and Molecular Docking Studies of a Selected Series of Hydroxy-3-arylcoumarins. Molecules 2019, 24, 2815 .

AMA Style

Maria Barbara Pisano, Amit Kumar, Rosaria Medda, Gianluca Gatto, Rajesh Pal, Antonella Fais, Benedetta Era, Sofia Cosentino, Eugenio Uriarte, Lourdes Santana, Francesca Pintus, Maria João Matos. Antibacterial Activity and Molecular Docking Studies of a Selected Series of Hydroxy-3-arylcoumarins. Molecules. 2019; 24 (15):2815.

Chicago/Turabian Style

Maria Barbara Pisano; Amit Kumar; Rosaria Medda; Gianluca Gatto; Rajesh Pal; Antonella Fais; Benedetta Era; Sofia Cosentino; Eugenio Uriarte; Lourdes Santana; Francesca Pintus; Maria João Matos. 2019. "Antibacterial Activity and Molecular Docking Studies of a Selected Series of Hydroxy-3-arylcoumarins." Molecules 24, no. 15: 2815.

Journal article
Published: 14 December 2018 in Measurement
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An Automatic Sensing Test methodology, in the following indicated as AST, is presented in this paper. The AST permits an extensive sensitivity analysis of implantable cardiac medical devices, among which Implantable Cardioverter Defibrillator (ICD). The AST is designed to evaluate the thresholds of the ICD sensing, considering different heart rates. In this way, it is possible to take into account different patient’s states of health. Consequently, it is possible to obtain a comprehensive assessment of ICD sensing performance. The AST is fielded through an optimized automatic measurement system implemented by means of an accurate general-purpose hardware platform. The procedure is based on dedicated virtual instruments. The developed environment is LabVIEW, by the National Instruments. The characterization process is based on an extensive experimental validation and field testing, which have been carried out by employing different ICD sensitivity settings and in two different scenarios: a 3-meter-high semi anechoic Radio Frequency Chamber, which is suited for electromagnetic pre-compliance test due to proper shielding against external electromagnetic noise, and an unshielded environment, which is more common for ICD operation. Detailed results are shown and discussed. They prove the validity of the proposed AST in both environments, in terms of a more extensive ICD characterization than that achievable by the Sensitivity Test described in the international standards, which is the starting point of the proposed procedure.

ACS Style

Andrea Lai; Alessandro Serpi; Sara Sulis; Gianluca Gatto. Extensive sensitivity analysis of Implantable Cardioverter Defibrillators by an Automatic Sensing Test procedure. Measurement 2018, 134, 930 -938.

AMA Style

Andrea Lai, Alessandro Serpi, Sara Sulis, Gianluca Gatto. Extensive sensitivity analysis of Implantable Cardioverter Defibrillators by an Automatic Sensing Test procedure. Measurement. 2018; 134 ():930-938.

Chicago/Turabian Style

Andrea Lai; Alessandro Serpi; Sara Sulis; Gianluca Gatto. 2018. "Extensive sensitivity analysis of Implantable Cardioverter Defibrillators by an Automatic Sensing Test procedure." Measurement 134, no. : 930-938.

Journal article
Published: 23 May 2018 in IEEE Transactions on Antennas and Propagation
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A novel printed antenna is designed for wearable and RFID applications in the UHF band. The antenna design is performed following energy-based design guidelines available in the recent literature. High robustness with respect to the human body coupling is achieved by confining the electric energy density in a region far from the antenna borders. The proposed configuration also provides a compact realization, and a high versatility, since it can be easily matched to different commercial chips. A prototype of this wearable antenna has been manufactured and tested in an anechoic environment. Experimental measurements of the read range confirm the results of the numerical simulations and demonstrate the antenna robustness with respect to the variations of the body–antenna coupling scenario.

ACS Style

Giovanni A. Casula; Giorgio Montisci; Giuseppe Valente; Gianluca Gatto. A Robust Printed Antenna for UHF Wearable Applications. IEEE Transactions on Antennas and Propagation 2018, 66, 4337 -4342.

AMA Style

Giovanni A. Casula, Giorgio Montisci, Giuseppe Valente, Gianluca Gatto. A Robust Printed Antenna for UHF Wearable Applications. IEEE Transactions on Antennas and Propagation. 2018; 66 (8):4337-4342.

Chicago/Turabian Style

Giovanni A. Casula; Giorgio Montisci; Giuseppe Valente; Gianluca Gatto. 2018. "A Robust Printed Antenna for UHF Wearable Applications." IEEE Transactions on Antennas and Propagation 66, no. 8: 4337-4342.

Conference paper
Published: 01 June 2015 in 2015 International Conference on Clean Electrical Power (ICCEP)
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In the present paper, a concentrator photovoltaic (CPV) power plant integrated with an Energy Storage System (ESS), which is controlled in order to schedule one-day-ahead the electricity production, is presented. The proposed control algorithm is characterized by the predictive definition of output power shapes. The daily estimation of the ESS State of Charge (SoC), jointly to the measurement of its actual evolution, is used for implementing a hysteresis real-time control devoted to adapt the power profile for compensating unpredictable power fluctuation. In order to develop the proposed energy management system with an existing CPV power plant, a DC side ESS control system, characterized by the use of a bidirectional DC-DC buck-boost converter, is considered. The feasibility of the proposed CPV energy management system is verified by means of a simulation study, which is carried out using on-site CPV prototype measurements.

ACS Style

A. Damiano; G. Gatto; A. Lai; I. Marenghi; C. Musio; A. Perfetto; Alessandro Serpi; Damiano A.. A DC side energy storage management for one-day-ahead power profile control of concentrator photovoltaic power plants. 2015 International Conference on Clean Electrical Power (ICCEP) 2015, 339 -345.

AMA Style

A. Damiano, G. Gatto, A. Lai, I. Marenghi, C. Musio, A. Perfetto, Alessandro Serpi, Damiano A.. A DC side energy storage management for one-day-ahead power profile control of concentrator photovoltaic power plants. 2015 International Conference on Clean Electrical Power (ICCEP). 2015; ():339-345.

Chicago/Turabian Style

A. Damiano; G. Gatto; A. Lai; I. Marenghi; C. Musio; A. Perfetto; Alessandro Serpi; Damiano A.. 2015. "A DC side energy storage management for one-day-ahead power profile control of concentrator photovoltaic power plants." 2015 International Conference on Clean Electrical Power (ICCEP) , no. : 339-345.

Conference paper
Published: 01 May 2015 in 2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings
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An Automatic Sensing Test procedure (AST) for evaluating the sensing performances of Implantable Cardioverter Defibrillators (ICDs) is presented in this paper. AST is based on the Sensitivity Test described by the Standard CEI EN 45502-2-1 for pacemakers and consists of determining the ICD sensing thresholds at different heartbeat frequencies. Consequently, an extensive evaluation of ICD sensing performances can be achieved. AST has been implemented by means of virtual instruments developed in the Labview environment and has been validated experimentally through several tests. These have been performed inside an anechoic RF chamber. Such an environment guarantees proper shielding against external electromagnetic interferences, thus ensuring reliability and repeatability of the tests. The discussion of the results highlights the usefulness of the proposed procedure.

ACS Style

Ivan Luigi Spano; Sara Sulis; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto; Vincenzo Nissardi; Spano I.L.; Sulis S.; Serpi A.; Marongiu I.; Gatto G.; Nissardi V.. An Automatic Sensing Test procedure for Implantable Cardioverter Defibrillators. 2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings 2015, 186 -190.

AMA Style

Ivan Luigi Spano, Sara Sulis, Alessandro Serpi, Ignazio Marongiu, Gianluca Gatto, Vincenzo Nissardi, Spano I.L., Sulis S., Serpi A., Marongiu I., Gatto G., Nissardi V.. An Automatic Sensing Test procedure for Implantable Cardioverter Defibrillators. 2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings. 2015; ():186-190.

Chicago/Turabian Style

Ivan Luigi Spano; Sara Sulis; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto; Vincenzo Nissardi; Spano I.L.; Sulis S.; Serpi A.; Marongiu I.; Gatto G.; Nissardi V.. 2015. "An Automatic Sensing Test procedure for Implantable Cardioverter Defibrillators." 2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings , no. : 186-190.

Conference paper
Published: 01 December 2014 in 2014 IEEE International Electric Vehicle Conference (IEVC)
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In this paper, a performance analysis of Permanent Magnet Synchronous Machines (PMSMs) for High-Speed Flywheel Energy Storage Systems (HS-FESSs) to be employed in Electric and Hybrid Electric Vehicles is presented. It aims to identify optimal speed ranges, within which HS-FESS performances can be appropriately maximized, especially in terms of efficiency. Thus, a modeling of PMSM operating constraints (voltage saturation, current limitation, etc.) is carried out at first. This enables an appropriate analysis of PMSM performances within its operating boundaries. As a result, PMSM efficiency maps can be achieved, which allow the identification of suitable operating conditions for HS-FESS. The effectiveness of the proposed approach is proved by means of both analytical and simulation results, which regards two highspeed PMSMs operating over different torque, power and/or speed ranges.

ACS Style

Alessandro Serpi; Federico Deiana; Gianluca Gatto; Ignazio Marongiu. Performance analysis of PMSM for High-Speed Flywheel Energy Storage Systems in Electric and Hybrid Electric Vehicles. 2014 IEEE International Electric Vehicle Conference (IEVC) 2014, 1 -8.

AMA Style

Alessandro Serpi, Federico Deiana, Gianluca Gatto, Ignazio Marongiu. Performance analysis of PMSM for High-Speed Flywheel Energy Storage Systems in Electric and Hybrid Electric Vehicles. 2014 IEEE International Electric Vehicle Conference (IEVC). 2014; ():1-8.

Chicago/Turabian Style

Alessandro Serpi; Federico Deiana; Gianluca Gatto; Ignazio Marongiu. 2014. "Performance analysis of PMSM for High-Speed Flywheel Energy Storage Systems in Electric and Hybrid Electric Vehicles." 2014 IEEE International Electric Vehicle Conference (IEVC) , no. : 1-8.

Conference paper
Published: 01 November 2014 in 2014 22nd Telecommunications Forum Telfor (TELFOR)
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An analysis of Electromagnetic Interference (EMI) between a Radio Frequency Identification (RFID) device and an Implantable Cardiac Defibrillator (ICD) is presented in this paper. In particular, the analysis focuses on the effects of EMI produced by an RFID reader on ICD operation. Thus, a brief overview of both ICD and RFID devices is presented at first. Subsequently, several experimental tests are performed inside an anechoic RF chamber, which ensures an appropriate shielding against external EMI sources. As a result, the comparison among ICD operating thresholds highlights its susceptibility against the RFID device.

ACS Style

Ivan Luigi Spano; Alessandro Serpi; Alessandro Fanti; Vincenzo Nissardi; Andrea Lai; Francesco Valentino Caredda; Pier Francesco Orrù; Giuseppe Mazzarella; Ignazio Marongiu; Gianluca Gatto. Electromagnetic compatibility analysis of RFID and implantable medical devices. 2014 22nd Telecommunications Forum Telfor (TELFOR) 2014, 818 -821.

AMA Style

Ivan Luigi Spano, Alessandro Serpi, Alessandro Fanti, Vincenzo Nissardi, Andrea Lai, Francesco Valentino Caredda, Pier Francesco Orrù, Giuseppe Mazzarella, Ignazio Marongiu, Gianluca Gatto. Electromagnetic compatibility analysis of RFID and implantable medical devices. 2014 22nd Telecommunications Forum Telfor (TELFOR). 2014; ():818-821.

Chicago/Turabian Style

Ivan Luigi Spano; Alessandro Serpi; Alessandro Fanti; Vincenzo Nissardi; Andrea Lai; Francesco Valentino Caredda; Pier Francesco Orrù; Giuseppe Mazzarella; Ignazio Marongiu; Gianluca Gatto. 2014. "Electromagnetic compatibility analysis of RFID and implantable medical devices." 2014 22nd Telecommunications Forum Telfor (TELFOR) , no. : 818-821.

Conference paper
Published: 01 October 2014 in IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society
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An average modeling approach for DC-DC power converters is presented in this paper. It allows the achievement of accurate averaged models of DC-DC converters, which account for dynamic and steady state operations, over both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). In particular, appropriate equivalent switching signals are introduced in order to account for each converter operating state. In addition, a suitable inductor model is introduced in order to improve inductor losses estimation. As a result, the proposed averaged modeling enables an enhanced power losses estimation by accounting for switching and current ripple phenomena. The worth and effectiveness of the proposed modeling approach has been validated through a simulation study, which is performed in the Matlab-Simulink environment and refers to the case of a boost DC-DC converter.

ACS Style

Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. Enhanced modeling of DC-DC power converters by means of averaging technique. IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society 2014, 5101 -5107.

AMA Style

Andrea Mocci, Alessandro Serpi, Ignazio Marongiu, Gianluca Gatto. Enhanced modeling of DC-DC power converters by means of averaging technique. IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society. 2014; ():5101-5107.

Chicago/Turabian Style

Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. 2014. "Enhanced modeling of DC-DC power converters by means of averaging technique." IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society , no. : 5101-5107.

Conference paper
Published: 01 September 2014 in 2014 International Symposium on Electromagnetic Compatibility
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A novel electromagnetic characterization of Implantable Cardiac Medical Devices (ICMDs) is presented in this paper. It has been developed in order to determine the immunity level of ICMDs against Radio-Frequency (RF) interference and consists of several Sensitivity Tests, which have been performed in accordance with EMC international standards. The tests have been carried out in an anechoic RF chamber, which guarantees an appropriate management of noise signal injection, shielding against external RF noise sources at the same time. In this way, the operating thresholds of an Implantable Cardiac Defibrillator (ICD) have been achieved at different heartbeat frequency, with and without high-frequency noise. As a result, the comparison between the operating thresholds highlight the electromagnetic susceptibility of the ICD under test.

ACS Style

Ivan Luigi Spano; Sara Sulis; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. EMC Characterization of Implantable Cardiac Medical Devices in an anechoic chamber. 2014 International Symposium on Electromagnetic Compatibility 2014, 872 -877.

AMA Style

Ivan Luigi Spano, Sara Sulis, Alessandro Serpi, Ignazio Marongiu, Gianluca Gatto. EMC Characterization of Implantable Cardiac Medical Devices in an anechoic chamber. 2014 International Symposium on Electromagnetic Compatibility. 2014; ():872-877.

Chicago/Turabian Style

Ivan Luigi Spano; Sara Sulis; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. 2014. "EMC Characterization of Implantable Cardiac Medical Devices in an anechoic chamber." 2014 International Symposium on Electromagnetic Compatibility , no. : 872-877.

Conference paper
Published: 01 September 2014 in 2014 49th International Universities Power Engineering Conference (UPEC)
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In order to show that a given set of EM sources comply with national rules on exposition, a prediction model for EM propagation is needed. For indoor environment, the test presented her show that reflections and multipath can significantly affect the field level respect to the free-space situation, which sometimes can doubles.

ACS Style

F. V. Caredda; Alessandro Fanti; Gianluca Gatto; G. Mazzarella; Ivan Spano; E. Tanzi; P. F. Orru; F. Zedda. EM level evaluation in indoor environment. 2014 49th International Universities Power Engineering Conference (UPEC) 2014, 1 -4.

AMA Style

F. V. Caredda, Alessandro Fanti, Gianluca Gatto, G. Mazzarella, Ivan Spano, E. Tanzi, P. F. Orru, F. Zedda. EM level evaluation in indoor environment. 2014 49th International Universities Power Engineering Conference (UPEC). 2014; ():1-4.

Chicago/Turabian Style

F. V. Caredda; Alessandro Fanti; Gianluca Gatto; G. Mazzarella; Ivan Spano; E. Tanzi; P. F. Orru; F. Zedda. 2014. "EM level evaluation in indoor environment." 2014 49th International Universities Power Engineering Conference (UPEC) , no. : 1-4.

Conference paper
Published: 01 September 2014 in 2014 49th International Universities Power Engineering Conference (UPEC)
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An extensive experimental analysis of a two-phase Interleaved PFC Boost converter (I-PFC-B) is presented in this paper. It aims to highlight the most important features of I-PFC-B operation, in terms of both performances and Electromagnetic Compatibility (EMC) issues. Therefore, several experimental tests are performed inside an anechoic RF chamber; in particular, Power Factor, Total Harmonic Distortion Factor, Current Crest Factor and energy efficiency are determined at different I-PFC-B output powers. Furthermore, appropriate Conducted and Radiated Emission tests are performed, in accordance with international standards, in order to reveal I-PFC-B aptitude as a non-intentional Electromagnetic Interference (EMI) source. The results highlight poor I-PFC-B performances at light loads, as well as potential conducted EMI issues within low and medium frequency ranges.

ACS Style

Ivan Spano; Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. Performance and EMC analysis of an interleaved PFC boost converter topology. 2014 49th International Universities Power Engineering Conference (UPEC) 2014, 1 -6.

AMA Style

Ivan Spano, Andrea Mocci, Alessandro Serpi, Ignazio Marongiu, Gianluca Gatto. Performance and EMC analysis of an interleaved PFC boost converter topology. 2014 49th International Universities Power Engineering Conference (UPEC). 2014; ():1-6.

Chicago/Turabian Style

Ivan Spano; Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. 2014. "Performance and EMC analysis of an interleaved PFC boost converter topology." 2014 49th International Universities Power Engineering Conference (UPEC) , no. : 1-6.

Proceedings article
Published: 01 June 2014 in 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion
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A comparison between two-phase-on (2PO) and three-phase-on operation (3PO) for Three-phase Brushless DC machines (BLDCs) is presented in this paper. It aims to highlight the different BLDC exploitation achievable by means of 3PO compared to that obtainable by 2PO. For this purpose, two different control strategies are considered, i.e. a traditional 2PO-based and a 3PO-based, whose main details are briefly analyzed and discussed. Subsequently, they are compared to each other referring to the case of a BLDC. The comparison reveals improved BLDC performances achievable by means of 3PO in terms of averaged torque, torque ripple and Joule losses reduction, especially at high-speed operation.

ACS Style

Alfonso Damiano; Federico Deiana; Giuseppe Fois; Gianluca Gatto; Ignazio Marongiu; Alessandro Serpi; Aldo Perfetto; Damiano A.; Deiana F.; Fois G.; Marongiu I.. Performance comparison between two-phase-on and three-phase-on operation of Brushless DC drives. 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion 2014, 489 -494.

AMA Style

Alfonso Damiano, Federico Deiana, Giuseppe Fois, Gianluca Gatto, Ignazio Marongiu, Alessandro Serpi, Aldo Perfetto, Damiano A., Deiana F., Fois G., Marongiu I.. Performance comparison between two-phase-on and three-phase-on operation of Brushless DC drives. 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion. 2014; ():489-494.

Chicago/Turabian Style

Alfonso Damiano; Federico Deiana; Giuseppe Fois; Gianluca Gatto; Ignazio Marongiu; Alessandro Serpi; Aldo Perfetto; Damiano A.; Deiana F.; Fois G.; Marongiu I.. 2014. "Performance comparison between two-phase-on and three-phase-on operation of Brushless DC drives." 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion , no. : 489-494.

Conference paper
Published: 01 June 2014 in 2014 10th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)
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An inductor modeling suitable for DC-DC converters is proposed in this paper. It consists of introducing an appropriate parallel resistance in order to account for inductor current ripple when averaging technique is employed. This allows the development of an improved averaged model for DC-DC converters, which takes into account inductor power losses due to current ripple phenomenon. The worth and effectiveness of the proposed modeling approach has been validated through a simulation study, which is performed in the Matlab-Simulink environment and refers to the case of a boost DC-DC converter.

ACS Style

Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. A suitable inductor modeling for DC-DC converters. 2014 10th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME) 2014, 1 -4.

AMA Style

Andrea Mocci, Alessandro Serpi, Ignazio Marongiu, Gianluca Gatto. A suitable inductor modeling for DC-DC converters. 2014 10th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME). 2014; ():1-4.

Chicago/Turabian Style

Andrea Mocci; Alessandro Serpi; Ignazio Marongiu; Gianluca Gatto. 2014. "A suitable inductor modeling for DC-DC converters." 2014 10th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME) , no. : 1-4.

Journal article
Published: 28 January 2014 in Journal of Energy and Power Engineering
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ACS Style

Alfonso Damiano; Gianluca Gatto; Ignazio Marongiu; Mario Porru; Alessandro Serpi. Vehicle-to-Grid Technology: State-of-the-Art and Future Scenarios. Journal of Energy and Power Engineering 2014, 8, 1 .

AMA Style

Alfonso Damiano, Gianluca Gatto, Ignazio Marongiu, Mario Porru, Alessandro Serpi. Vehicle-to-Grid Technology: State-of-the-Art and Future Scenarios. Journal of Energy and Power Engineering. 2014; 8 (1):1.

Chicago/Turabian Style

Alfonso Damiano; Gianluca Gatto; Ignazio Marongiu; Mario Porru; Alessandro Serpi. 2014. "Vehicle-to-Grid Technology: State-of-the-Art and Future Scenarios." Journal of Energy and Power Engineering 8, no. 1: 1.

Conference paper
Published: 01 November 2013 in IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
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A novel continuous-time equivalent circuit suitable for boost DC-DC converters is presented in this paper. It has been developed on the basis of the averaging technique with the aim of achieving a good ripple-free representation of the state variables of the system, whatever the converter operating mode is, i.e. Continuous Conduction Mode (CCM) or Discontinuous Conduction Mode (DCM). This goal can be achieved on condition that an appropriate PWM pattern is introduced, which enables an almost perfect matching between state variables and their corresponding equivalent ones at the start of each sampling time interval. Apart from the inductor and the capacitor, the proposed circuit consists of some equivalent input voltage and output current sources, together with several constant and/or variable resistors, which depend on converter switching signals and circuital parameters. The proposed continuous-time equivalent circuit has been validated through a simulation study, which is performed by means of the software PLECS. Simulation results highlight the worth and the effectiveness of the proposed modelling approach, over both transient and steady state operations.

ACS Style

Gianluca Gatto; Ignazio Marongiu; Andrea Mocci; Alessandro Serpi; Ivan Luigi Spano. A novel continuous-time equivalent circuit for boost DC-DC converters. IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society 2013, 262 -267.

AMA Style

Gianluca Gatto, Ignazio Marongiu, Andrea Mocci, Alessandro Serpi, Ivan Luigi Spano. A novel continuous-time equivalent circuit for boost DC-DC converters. IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society. 2013; ():262-267.

Chicago/Turabian Style

Gianluca Gatto; Ignazio Marongiu; Andrea Mocci; Alessandro Serpi; Ivan Luigi Spano. 2013. "A novel continuous-time equivalent circuit for boost DC-DC converters." IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society , no. : 262-267.