This page has only limited features, please log in for full access.
DC nanogrid architectures with Photovoltaic (PV) modules are expected to grow significantly in the next decades. Therefore, the integration of multi-port power converters and high-frequency isolation links are of increasing interest. The Triple Active Bridge (TAB) topology shows interesting advantages in terms of isolation, Zero Voltage Switching (ZVS) over wide load and input voltage ranges and high frequency operation capability. Thus, controlling PV modules is not an easy task due to the complexity and control stability of the system. In fact, the TAB power transfer function has many degrees of freedom, and the relationship between any of two ports is always dependent on the third one. In this paper we analyze the interfacing of photovoltaic arrays to the TAB with different solar conditions. A simple but effective control solution is proposed, which can be implemented through general purpose microcontrollers. The TAB is applied to an islanded DC nanogrid, which can be useful and readily implemented in locations where the utility grid is not available or reliable, and applications where isolation is required as for example More Electric Aircraft (MEA). Different conditions have been simulated and the control loops are proved for a reliable bus voltage control on the load side and a good maximum power point tracking (MPPT).
Danilo Santoro; Iñigo Kortabarria; Andrea Toscani; Carlo Concari; Paolo Cova; Nicola Delmonte. PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications. Energies 2021, 14, 2854 .
AMA StyleDanilo Santoro, Iñigo Kortabarria, Andrea Toscani, Carlo Concari, Paolo Cova, Nicola Delmonte. PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications. Energies. 2021; 14 (10):2854.
Chicago/Turabian StyleDanilo Santoro; Iñigo Kortabarria; Andrea Toscani; Carlo Concari; Paolo Cova; Nicola Delmonte. 2021. "PV Modules Interfacing Isolated Triple Active Bridge for Nanogrid Applications." Energies 14, no. 10: 2854.
Switched Reluctance Machines (SRM) are considered promising rare-earth free candidates for the next generation electrified vehicles. One of the main drawback of this technology is the need of a large DC-link capacitor to balance the energy transferred back and forth between the DC source and the SRM. There are interesting novel modulations to reduce the current of the DC bus, focused on the capacitor size and cost reduction but leaving aside the thermal analysis and lifetime improvements. Carrying out the required dynamic multi-physics simulations for that purpose becomes highly time consuming and complex, especially when standardized or real driving conditions are needed to be taken into account. This paper proposes a simulation methodology, simple to implement and with a relatively low computational cost, to estimate the lifetime of an automotive DC-link capacitor, with the current load it delivers as the starting point. The presented methodology has also been used to validate a novel SRM modulation technique and to compare it, in terms of reliability, with the conventional torque sharing function.
David Cabezuelo Romero; Inigo Kortabarria; Jon Andreu; Fernando Rodriguez; Adrian Arcas; Nicola Delmonte. A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor. IEEE Access 2020, 8, 192713 -192726.
AMA StyleDavid Cabezuelo Romero, Inigo Kortabarria, Jon Andreu, Fernando Rodriguez, Adrian Arcas, Nicola Delmonte. A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor. IEEE Access. 2020; 8 (99):192713-192726.
Chicago/Turabian StyleDavid Cabezuelo Romero; Inigo Kortabarria; Jon Andreu; Fernando Rodriguez; Adrian Arcas; Nicola Delmonte. 2020. "A Methodology to Determine the Effect of a Novel Modulation in the Reliability of an Automotive DC-Link Capacitor." IEEE Access 8, no. 99: 192713-192726.
The aim of this work is to show that a significant increase of the efficiency of a Wave Energy Converter (WEC) can be achieved already at an early design stage, through the choice of a turbine and control regulation, by means of an accurate Wave-to-Wire (W2W) modeling that couples the hydrodynamic response calibrated in a wave flume to a Hardware-In-the-Loop (HIL) test bench with sizes and rates not matching those of the system under development. Information on this procedure is relevant to save time, because the acquisition, the installation, and the setup of a test rig are not quick and easy. Moreover, power electronics and electric machines to emulate turbines and electric generators matching the real systems are not low-cost equipment. The use of HIL is important in the development of WECs also because it allows the carrying out of tests in a controlled environment, and this is again time- and money-saving if compared to tests done on a real system installed at the sea. Furthermore, W2W modeling can be applied to several Power Take-Off (PTO) configurations to experiment different control strategies. The method here proposed, concerning a specific HIL for testing power electronics and control laws for a specific WECs, may have a more general validity.
Nicola Delmonte; Eider Robles; Paolo Cova; Francesco Giuliani; François Xavier Faÿ; Joseba Lopez; Piero Ruol; Luca Martinelli. An Iterative Refining Approach to Design the Control of Wave Energy Converters with Numerical Modeling and Scaled HIL Testing. Energies 2020, 13, 2508 .
AMA StyleNicola Delmonte, Eider Robles, Paolo Cova, Francesco Giuliani, François Xavier Faÿ, Joseba Lopez, Piero Ruol, Luca Martinelli. An Iterative Refining Approach to Design the Control of Wave Energy Converters with Numerical Modeling and Scaled HIL Testing. Energies. 2020; 13 (10):2508.
Chicago/Turabian StyleNicola Delmonte; Eider Robles; Paolo Cova; Francesco Giuliani; François Xavier Faÿ; Joseba Lopez; Piero Ruol; Luca Martinelli. 2020. "An Iterative Refining Approach to Design the Control of Wave Energy Converters with Numerical Modeling and Scaled HIL Testing." Energies 13, no. 10: 2508.
The implementation of artificial intelligence (AI) in a smart society, in which the analysis of human habits is mandatory, requires automated data scheduling and analysis using smart applications, a smart infrastructure, smart systems, and a smart network. In this context, which is characterized by a large gap between training and operative processes, a dedicated method is required to manage and extract the massive amount of data and the related information mining. The method presented in this work aims to reduce this gap with near-zero-failure advanced diagnostics (AD) for smart management, which is exploitable in any context of Society 5.0, thus reducing the risk factors at all management levels and ensuring quality and sustainability. We have also developed innovative applications for a human-centered management system to support scheduling in the maintenance of operative processes, for reducing training costs, for improving production yield, and for creating a human–machine cyberspace for smart infrastructure design. The results obtained in 12 international companies demonstrate a possible global standardization of operative processes, leading to the design of a near-zero-failure intelligent system that is able to learn and upgrade itself. Our new method provides guidance for selecting the new generation of intelligent manufacturing and smart systems in order to optimize human–machine interactions, with the related smart maintenance and education.
Ruben Foresti; Stefano Rossi; Matteo Magnani; Corrado Guarino Lo Bianco; Nicola Delmonte. Smart Society and Artificial Intelligence: Big Data Scheduling and the Global Standard Method Applied to Smart Maintenance. Engineering 2020, 6, 835 -846.
AMA StyleRuben Foresti, Stefano Rossi, Matteo Magnani, Corrado Guarino Lo Bianco, Nicola Delmonte. Smart Society and Artificial Intelligence: Big Data Scheduling and the Global Standard Method Applied to Smart Maintenance. Engineering. 2020; 6 (7):835-846.
Chicago/Turabian StyleRuben Foresti; Stefano Rossi; Matteo Magnani; Corrado Guarino Lo Bianco; Nicola Delmonte. 2020. "Smart Society and Artificial Intelligence: Big Data Scheduling and the Global Standard Method Applied to Smart Maintenance." Engineering 6, no. 7: 835-846.
Current environmental concerns and fuel scarcity are leading to the progressive introduction of Electric Vehicles (EV) in the global fleet vehicle population. This requires significant design and research efforts from scientific community and industry to provide reliable automotive electric propulsion systems. The power modules used for automotive traction inverters can be considered as central elements of such systems. As they are subject to high electro-thermal stress during operation, Design-for-Reliability (DfR) approaches should be adopted. Thus, accurate models for electro-thermal simulations are relevant since the early design stages. However, such simulations become highly time consuming and complex when accurate thermal characterization through standardized or real driving conditions needs to be provided. In this context, this work proposes a simulation methodology that combines real-time simulation for electro-thermal characterization of the whole EV propulsion system, using a 1D equivalent thermal impedance circuit, in conjunction with 3D FEM thermal simulation. In this way, an accurate thermal characterization of the power module under driving cycles with long duration (of hundreds of seconds) can be obtained without computing heavy 3D FEM simulations. The proposed procedure allows to simplify and speed up the early design stages while maintaining high accuracy in the results.
A. Matallana; E. Robles; E. Ibarra; J. Andreu; N. Delmonte; P. Cova. A methodology to determine reliability issues in automotive SiC power modules combining 1D and 3D thermal simulations under driving cycle profiles. Microelectronics Reliability 2019, 102, 113500 .
AMA StyleA. Matallana, E. Robles, E. Ibarra, J. Andreu, N. Delmonte, P. Cova. A methodology to determine reliability issues in automotive SiC power modules combining 1D and 3D thermal simulations under driving cycle profiles. Microelectronics Reliability. 2019; 102 ():113500.
Chicago/Turabian StyleA. Matallana; E. Robles; E. Ibarra; J. Andreu; N. Delmonte; P. Cova. 2019. "A methodology to determine reliability issues in automotive SiC power modules combining 1D and 3D thermal simulations under driving cycle profiles." Microelectronics Reliability 102, no. : 113500.
Junction temperature monitoring for power devices is an essential requirement for high-reliability applications. Temperature sensitive electrical parameters (TSEPs) are powerful tools in this process, but to achieve sufficient accuracy they require complex characterization procedures for each part, that can hardly be implemented in mass-produced converters. This work proposes a combination of interdisciplinary approaches to ultimately solve this problem for power MOSFETs by an automated procedure that can occur in-place, with devices mounted and without any specific user intervention nor additional heating components. The TSEP exploited in this work is the on-state drain-source voltage of the power MOSFET. A wide-bandwidth on-state voltage sensing circuit and a low-cost thermistor conditioning circuit to sense the case temperature of the device are presented and modeled. A lumped parameters thermal model of the system is given and FEM simulations are employed to obtain first-guess values for the unknown thermal network parameters, integrating information from the device datasheet. Finally, an observer based on the Kalman filter applied to the data collected from these sources is presented and evaluated experimentally. Performance is assessed with the use of thermal imaging techniques.
Alessandro Soldati; Nicola Delmonte; Paolo Cova; Carlo Concari. Device-Sensor Assembly FEA Modeling to Support Kalman-Filter-Based Junction Temperature Monitoring. IEEE Journal of Emerging and Selected Topics in Power Electronics 2019, 7, 1736 -1747.
AMA StyleAlessandro Soldati, Nicola Delmonte, Paolo Cova, Carlo Concari. Device-Sensor Assembly FEA Modeling to Support Kalman-Filter-Based Junction Temperature Monitoring. IEEE Journal of Emerging and Selected Topics in Power Electronics. 2019; 7 (3):1736-1747.
Chicago/Turabian StyleAlessandro Soldati; Nicola Delmonte; Paolo Cova; Carlo Concari. 2019. "Device-Sensor Assembly FEA Modeling to Support Kalman-Filter-Based Junction Temperature Monitoring." IEEE Journal of Emerging and Selected Topics in Power Electronics 7, no. 3: 1736-1747.
Efficiency degradation due to modules soiling is a key factor in photovoltaic plants, which must be accurately taken into account in order to set a maintenance program, which optimizes the production/cost ratio. In this paper a model is developed, which accounts for the losses in the energy production due to dust and other kind of dirt. A small PV system with a proper measurement bench and a reference panel kept clean was set up allowing to identify different shading effects due to different kinds of soiling. Early results allowed identifying different soiling factors on current and voltage. This will enable the development of a smart system optimizing the PV plant maintenance, especially for the module cleaning interventions.
P. Cova; N. Delmonte; Massimo Lazzaroni. Photovoltaic plant maintainability optimization and degradation detection: Modelling and characterization. Microelectronics Reliability 2018, 88-90, 1077 -1082.
AMA StyleP. Cova, N. Delmonte, Massimo Lazzaroni. Photovoltaic plant maintainability optimization and degradation detection: Modelling and characterization. Microelectronics Reliability. 2018; 88-90 ():1077-1082.
Chicago/Turabian StyleP. Cova; N. Delmonte; Massimo Lazzaroni. 2018. "Photovoltaic plant maintainability optimization and degradation detection: Modelling and characterization." Microelectronics Reliability 88-90, no. : 1077-1082.
Graphene conductive foams have shown very high potential as cooling material in electronic systems. Its exploitation with discrete GaN transistors is demonstrated in this paper. A proper experimental setup is developed to extract the high temperature thermal performance of this material at different test conditions. The results are very promising, showing a noticeable reduction of the device maximum temperature, especially at high dissipated power densities. Moreover, experimental results allowed the validation of a 3D finite element model of the assembled device, which can be used for thermal layout optimization. Finally, preliminary stress tests are in progress, to evaluate the stability of electrical and thermal performance of the proposed graphene based assembly. Good stability was obtained, both at low and high ambient temperatures.
M. Antonini; P. Cova; N. Delmonte; Alberto Castellazzi. GaN transistors efficient cooling by graphene foam. Microelectronics Reliability 2018, 88-90, 812 -816.
AMA StyleM. Antonini, P. Cova, N. Delmonte, Alberto Castellazzi. GaN transistors efficient cooling by graphene foam. Microelectronics Reliability. 2018; 88-90 ():812-816.
Chicago/Turabian StyleM. Antonini; P. Cova; N. Delmonte; Alberto Castellazzi. 2018. "GaN transistors efficient cooling by graphene foam." Microelectronics Reliability 88-90, no. : 812-816.
An innovative modelling methodology for the simulation of electro-thermal interaction in power devices, based on Neural Networks (NNs), is shown. The suitability of NNs in modelling the complicated non-linear, temperature dependent characteristic that power electronics devices feature, is shown. The proposed methodology is particularly suited to be implemented in electrical simulators. The approach can be divided in two parallel steps: firstly, NNs are used to describe the complex, highly non-linear electro-thermal characteristic of the considered device; secondly, a non-linear RC-based thermal model is generated, with a method published in a previous work. These two sub-systems are coupled together in order to achieve a self-consistent electro-thermal model. The modelling results are validated against experiments with very satisfactory results. The technique is explained in detail; advantages and drawbacks of the method are then discussed.
Diego Chiozzi; Mirko Bernardoni; Nicola Delmonte; Paolo Cova. A Neural Network Based Approach to Simulate Electrothermal Device Interaction in SPICE Environment. IEEE Transactions on Power Electronics 2018, 34, 4703 -4710.
AMA StyleDiego Chiozzi, Mirko Bernardoni, Nicola Delmonte, Paolo Cova. A Neural Network Based Approach to Simulate Electrothermal Device Interaction in SPICE Environment. IEEE Transactions on Power Electronics. 2018; 34 (5):4703-4710.
Chicago/Turabian StyleDiego Chiozzi; Mirko Bernardoni; Nicola Delmonte; Paolo Cova. 2018. "A Neural Network Based Approach to Simulate Electrothermal Device Interaction in SPICE Environment." IEEE Transactions on Power Electronics 34, no. 5: 4703-4710.
This paper presents a comparison of conventional single-phase water/glycol liquid and innovative two-phase cooling technology for thermal management of high power electronics automotive IGBT modules during full drive cycle. The proposed two-phase cooling system is built using conventional automotive air conditioning components (condenser, expansion valve, compressor, and vapor and liquid lines) and conventional cold plate as used for single-phase cooling, thus the design does not require the development of new technology for its implementation. 3-D numerical simulation in COMSOL and experimental results of two-phase cooling have been obtained on a prototype and compared to conventional water/glycol cooling high power electronics modules, with considerable improvement on working temperature, power transfer capacity and equalization of die temperatures during a full driving cycle. These results suggest that two-phase cooling using the same cold plates as in single-phase cooling can be used to substantially improve the performance and reliability, of EV power converters without major changes.
Itxaso Aranzabal; Inigo Martinez De Alegria; Nicola Delmonte; Paolo Cova; Inigo Kortabarria. Comparison of the Heat Transfer Capabilities of Conventional Single- and Two-Phase Cooling Systems for an Electric Vehicle IGBT Power Module. IEEE Transactions on Power Electronics 2018, 34, 4185 -4194.
AMA StyleItxaso Aranzabal, Inigo Martinez De Alegria, Nicola Delmonte, Paolo Cova, Inigo Kortabarria. Comparison of the Heat Transfer Capabilities of Conventional Single- and Two-Phase Cooling Systems for an Electric Vehicle IGBT Power Module. IEEE Transactions on Power Electronics. 2018; 34 (5):4185-4194.
Chicago/Turabian StyleItxaso Aranzabal; Inigo Martinez De Alegria; Nicola Delmonte; Paolo Cova; Inigo Kortabarria. 2018. "Comparison of the Heat Transfer Capabilities of Conventional Single- and Two-Phase Cooling Systems for an Electric Vehicle IGBT Power Module." IEEE Transactions on Power Electronics 34, no. 5: 4185-4194.
The aim of this work is the thermal design of a modular direct liquid cooled package for 1200 V–35 A SiC power MOSFETs, in order to take full advantage of the high power density and high frequency performance of these devices, in the development of a modular integrated solution for power converters. An accurate electro-thermal fluid dynamic model is set up and validated by thermal characterization on a prototype; numerical models have been used to study the internal temperature distribution and to propose further optimization
P. Cova; A.M. Aliyu; A. Castellazzi; D. Chiozzi; N. Delmonte; P. Lasserre; N. Pignoloni. Thermal design and characterization of a modular integrated liquid cooled 1200 V-35 A SiC MOSFET bi-directional switch. Microelectronics Reliability 2017, 76-77, 277 -281.
AMA StyleP. Cova, A.M. Aliyu, A. Castellazzi, D. Chiozzi, N. Delmonte, P. Lasserre, N. Pignoloni. Thermal design and characterization of a modular integrated liquid cooled 1200 V-35 A SiC MOSFET bi-directional switch. Microelectronics Reliability. 2017; 76-77 ():277-281.
Chicago/Turabian StyleP. Cova; A.M. Aliyu; A. Castellazzi; D. Chiozzi; N. Delmonte; P. Lasserre; N. Pignoloni. 2017. "Thermal design and characterization of a modular integrated liquid cooled 1200 V-35 A SiC MOSFET bi-directional switch." Microelectronics Reliability 76-77, no. : 277-281.
In the sensors field the active sensing material frequently needs a controlled temperature in order to work properly. In microsystems technology, micro-machined hotplates represent a platform consisting of a thin suspended membrane where the sensing material can be deposited, usually integrating electrical stimuli and temperature readout. The micro-hotplate ensures a series of advantages such as miniaturized size, fast response, high sensitivity, low power consumption and selectivity for chemical sensing. This work compares the coplanar and the buried approach for the micro-hotplate heaters design with the aim to optimize the fabrication process and to propose a guideline for the choice of the suitable design with respect to the applications. In particular, robust Finite Element Method (FEM) models are set up in order to predict the electrical and thermal behavior of the micro-hotplates. The multiphysics approach used for the simulation allows to match as close as possible the actual device to the predictive model: geometries, materials, physics have been carefully linked to the fabricated devices to obtain the best possible accuracy. The materials involved in the fabrication process are accurately selected in order to improve the yield of the process and the performance of the devices. The fabricated micro-hotplates are able to warm the active region up to 400 °C (with a corresponding power consumption equal to 250 mW @ 400 °C) with a uniform temperature distribution in the buried micro-hotplate and a controlled temperature gradient in the coplanar one. A response time of about 70 ms was obtained on the virtual model, which perfectly agrees with the one measured on the fabricated device. Besides morphological, electrical and thermal characterizations, this work includes reliability tests in static and dynamic modes.
Alessio Tommasi; Matteo Cocuzza; Denis Perrone; Candido Fabrizio Pirri; Roberto Mosca; Marco Villani; Nicola Delmonte; Andrea Zappettini; Davide Calestani; Simone Luigi Marasso. Modeling, Fabrication and Testing of a Customizable Micromachined Hotplate for Sensor Applications. Sensors 2016, 17, 62 .
AMA StyleAlessio Tommasi, Matteo Cocuzza, Denis Perrone, Candido Fabrizio Pirri, Roberto Mosca, Marco Villani, Nicola Delmonte, Andrea Zappettini, Davide Calestani, Simone Luigi Marasso. Modeling, Fabrication and Testing of a Customizable Micromachined Hotplate for Sensor Applications. Sensors. 2016; 17 (12):62.
Chicago/Turabian StyleAlessio Tommasi; Matteo Cocuzza; Denis Perrone; Candido Fabrizio Pirri; Roberto Mosca; Marco Villani; Nicola Delmonte; Andrea Zappettini; Davide Calestani; Simone Luigi Marasso. 2016. "Modeling, Fabrication and Testing of a Customizable Micromachined Hotplate for Sensor Applications." Sensors 17, no. 12: 62.
An alternative integration scheme for a half-bridge switch using 70 μm thin Si IGBTs and diodes is presented. This flat switch, which is designed for high-frequency application with high power density, exhibits high strength, high toughness, low parasitic inductance and high thermal conductivity. Such a novel assembly approach is suitable to optimize performance, reliability and availability of the power system in which it is used. The paper focuses on the thermal performance of this assembly at normal and extreme operating conditions, studied by means of FEM thermo-fluidynamic simulations of the module integrated with connectors and liquid cooler, and thermal measurement performed on an early prototype. Improved solutions are also investigated by the FE model
P. Cova; N. Delmonte; A.K. Solomon; A. Castellazzi. Thermal design optimization of novel modular power converter assembly enabling higher performance, reliability and availability. Microelectronics Reliability 2016, 64, 507 -512.
AMA StyleP. Cova, N. Delmonte, A.K. Solomon, A. Castellazzi. Thermal design optimization of novel modular power converter assembly enabling higher performance, reliability and availability. Microelectronics Reliability. 2016; 64 ():507-512.
Chicago/Turabian StyleP. Cova; N. Delmonte; A.K. Solomon; A. Castellazzi. 2016. "Thermal design optimization of novel modular power converter assembly enabling higher performance, reliability and availability." Microelectronics Reliability 64, no. : 507-512.
D. Chiozzi; M. Bernardoni; N. Delmonte; Paolo Cova. A simple 1-D finite elements approach to model the effect of PCB in electronic assemblies. Microelectronics Reliability 2016, 58, 126 -132.
AMA StyleD. Chiozzi, M. Bernardoni, N. Delmonte, Paolo Cova. A simple 1-D finite elements approach to model the effect of PCB in electronic assemblies. Microelectronics Reliability. 2016; 58 ():126-132.
Chicago/Turabian StyleD. Chiozzi; M. Bernardoni; N. Delmonte; Paolo Cova. 2016. "A simple 1-D finite elements approach to model the effect of PCB in electronic assemblies." Microelectronics Reliability 58, no. : 126-132.
Ocean waves are a huge largely unexploited energy resource, and the potential for extracting energy from waves is great. Research in this area is driven by the need to meet renewable-energy targets, but it is relatively immature compared to other renewable-energy technologies. This review introduces some device types that represent the state of the art of oscillating water column technology, a kind of wave energy converter (WEC). Unlike other works in literature, typically limited to specific aspects of WECs, in this paper, a system-wide perspective will be pursued, from the sea waves to the grid connection.
Nicola Delmonte; Davide Barater; Francesco Giuliani; Paolo Cova; Giampaolo Buticchi. Review of Oscillating Water Column Converters. IEEE Transactions on Industry Applications 2015, 52, 1 -1.
AMA StyleNicola Delmonte, Davide Barater, Francesco Giuliani, Paolo Cova, Giampaolo Buticchi. Review of Oscillating Water Column Converters. IEEE Transactions on Industry Applications. 2015; 52 (2):1-1.
Chicago/Turabian StyleNicola Delmonte; Davide Barater; Francesco Giuliani; Paolo Cova; Giampaolo Buticchi. 2015. "Review of Oscillating Water Column Converters." IEEE Transactions on Industry Applications 52, no. 2: 1-1.
Paolo Cova; N. Delmonte; D. Chiozzi. Numerical analysis and experimental tests for solder joints power cycling optimization. Microelectronics Reliability 2015, 55, 2036 -2040.
AMA StylePaolo Cova, N. Delmonte, D. Chiozzi. Numerical analysis and experimental tests for solder joints power cycling optimization. Microelectronics Reliability. 2015; 55 (9-10):2036-2040.
Chicago/Turabian StylePaolo Cova; N. Delmonte; D. Chiozzi. 2015. "Numerical analysis and experimental tests for solder joints power cycling optimization." Microelectronics Reliability 55, no. 9-10: 2036-2040.
Equipment working in hostile environment are the aim of this paper. Devices operating in the hostile environment such as found in future experiments at LHC will be called to work with a level of background radiation able to cause accumulation of a Total Ionizing Dose (TID) up to 10 kGy in Silicon, and fluences up to 2 × 1013 protons/cm2 and 8 × 1013 neutrons/cm2 but also a high level of magnetic field. This new scenario will be taken into account and it will be very important in future when the High Luminosity (HL) LHC will be operative. It is so important, at this aim, to consider the fact that also the electronic converters devoted to generate the supply for the electronic circuits can be often called to operate in hostile environment. Thus, the power supply is a key aspects in this scenario and new converters need to be ad-hoc re-designed in order to meet the future requirements that will be very stringent. In this paper a main DC–DC power converter, developed by authors in the framework of the APOLLO R&D project, has been proposed. The experimental activity devoted to its electrical and thermal characterization, which can be defined as mandatory in order to obtain an evaluation of the features, is presented and deeply discussed. It is also important to characterize the system in order to evaluate the dependability features such as the RAMS (Reliability, Availability, Maintainability Safety) requirements. In particular, reliability is a very important aspect in experiments as ATLAS at CERN where maintenance should be scheduled only during the shutdown time. Also these aspects have been considered and discussed in the paper.
Massimo Lazzaroni; M. Citterio; S. Latorre; A. Lanza; Paolo Cova; N. Delmonte; Francesco Giuliani. Features measurement and reliability considerations on a proposed main converter for LHC experiments. Measurement 2015, 71, 73 -88.
AMA StyleMassimo Lazzaroni, M. Citterio, S. Latorre, A. Lanza, Paolo Cova, N. Delmonte, Francesco Giuliani. Features measurement and reliability considerations on a proposed main converter for LHC experiments. Measurement. 2015; 71 ():73-88.
Chicago/Turabian StyleMassimo Lazzaroni; M. Citterio; S. Latorre; A. Lanza; Paolo Cova; N. Delmonte; Francesco Giuliani. 2015. "Features measurement and reliability considerations on a proposed main converter for LHC experiments." Measurement 71, no. : 73-88.
A study is presented aimed at describing phenomena involved in Single Event Burnout induced by heavy ion irradiation in SiC Schottky diodes. On the basis of experimental data obtained for 79Br irradiation at different energies, electro-thermal FEM is used to demonstrate that the failure is caused by a strong local increase of the semiconductor temperature. With respect to previous studies the temperature dependent thermal material properties were added. The critical ion energy calculated by this model is in agreement with literature experimental results. The substrate doping dependence of the SEE robustness was analyzed, proving the effectiveness of the developed model for device technological improvements.
C. Abbate; Giovanni Busatto; P. Cova; N. Delmonte; Francesco Giuliani; Francesco Iannuzzo; A. Sanseverino; F. Velardi. Analysis of Heavy Ion Irradiation Induced Thermal Damage in SiC Schottky Diodes. IEEE Transactions on Nuclear Science 2015, 62, 202 -209.
AMA StyleC. Abbate, Giovanni Busatto, P. Cova, N. Delmonte, Francesco Giuliani, Francesco Iannuzzo, A. Sanseverino, F. Velardi. Analysis of Heavy Ion Irradiation Induced Thermal Damage in SiC Schottky Diodes. IEEE Transactions on Nuclear Science. 2015; 62 (1):202-209.
Chicago/Turabian StyleC. Abbate; Giovanni Busatto; P. Cova; N. Delmonte; Francesco Giuliani; Francesco Iannuzzo; A. Sanseverino; F. Velardi. 2015. "Analysis of Heavy Ion Irradiation Induced Thermal Damage in SiC Schottky Diodes." IEEE Transactions on Nuclear Science 62, no. 1: 202-209.
The New Small Wheel (NSW) is an upgrade for the ATLAS detector to provide enhanced triggering and reconstruction of muons in the forward region. The large LV power demands of the NSW necessitate a point-of-load architecture with on-detector power conversion. The radiation load and magnetic field of this environment, while significant, are nevertheless still in the range where commercial-off-the-shelf power devices may suffice. We present studies on the radiation-hardness and magnetic-field tolerance of several candidate buck converters and linear regulators. Device survival and performance are characterized when exposed to gamma radiation, neutrons, protons and magnetic fields.
Jon Ameel; D Amidei; S Baccaro; M Citterio; Paolo Cova; Nicola Delmonte; K Sekhon Edgar; Ryan Christopher Edgar; Salvatore Fiore; A Lanza; S Latorre; Massimo Lazzaroni; Yi Yang. Radiation-hard power electronics for the ATLAS New Small Wheel. Journal of Instrumentation 2015, 10, C01009 -C01009.
AMA StyleJon Ameel, D Amidei, S Baccaro, M Citterio, Paolo Cova, Nicola Delmonte, K Sekhon Edgar, Ryan Christopher Edgar, Salvatore Fiore, A Lanza, S Latorre, Massimo Lazzaroni, Yi Yang. Radiation-hard power electronics for the ATLAS New Small Wheel. Journal of Instrumentation. 2015; 10 (1):C01009-C01009.
Chicago/Turabian StyleJon Ameel; D Amidei; S Baccaro; M Citterio; Paolo Cova; Nicola Delmonte; K Sekhon Edgar; Ryan Christopher Edgar; Salvatore Fiore; A Lanza; S Latorre; Massimo Lazzaroni; Yi Yang. 2015. "Radiation-hard power electronics for the ATLAS New Small Wheel." Journal of Instrumentation 10, no. 1: C01009-C01009.
Ocean waves are a huge, largely unexploited energy resource, and the potential for extracting energy from waves is great. Research in this area is driven by the need to meet renewable energy targets, but it is relatively immature compared to other renewable energy technologies. This brief review introduces some device types that represent the state of the art of Oscillating Water Column (OWC) technologies, a kind of Wave Energy Converter (WEC). Unlike other works in literature, typically limited to specific aspects of WECs, in this paper will be pursued a system wide perspective, from the sea waves to the grid connection, with a particular focus on the power electronics.
Nicola Delmonte; Davide Barater; Francesco Giuliani; Paolo Cova; Giampaolo Buticchi. Oscillating water column power conversion: A technology review. 2014 IEEE Energy Conversion Congress and Exposition (ECCE) 2014, 1852 -1859.
AMA StyleNicola Delmonte, Davide Barater, Francesco Giuliani, Paolo Cova, Giampaolo Buticchi. Oscillating water column power conversion: A technology review. 2014 IEEE Energy Conversion Congress and Exposition (ECCE). 2014; ():1852-1859.
Chicago/Turabian StyleNicola Delmonte; Davide Barater; Francesco Giuliani; Paolo Cova; Giampaolo Buticchi. 2014. "Oscillating water column power conversion: A technology review." 2014 IEEE Energy Conversion Congress and Exposition (ECCE) , no. : 1852-1859.