Chiara Boccaletti

Prof. Dr. Chiara Boccaletti

Department of Astronautics, Electrical and Energetic Engineering, Sapienza University of Rome, Rome, Italy
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Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 October 2012 in IEEE Transactions on Power Electronics
Verified
Journal Article
Closed access
EREunice Ribeiro
Eunice Ribeiro
Antonio J. Marques CardosoAntonio J. Marques Cardoso
Antonio J. Marques Cardoso
CBChiara Boccaletti
Chiara Boccaletti
The photovoltaic (PV) technology has a small impact on the environment and is suitable for a wide range of applications. The main barrier for a more extensive implementation has been the reliability, mainly related to the power converters. According to this consideration, this paper presents an open-circuit fault diagnosis and fault-tolerant scheme for a three-level boost converter in a PV power system using batteries as storage devices. The fault diagnostic method takes advantage only of the control variables used for maximum power point tracking and output dc-link capacitor voltage balance. The fault-tolerant strategy requires only a few components added to the original three-level boost converter, so that, under an open-circuit power switch fault, it can be partly reconfigured into a two-level boost converter ensuring battery energy supply. Experimental results verify the proposed fault diagnostic method and reconfiguration for fault-tolerant operation.
8 July 2013 in IEEE Transactions on Power Electronics
Verified
Journal Article
Closed access
EREunice Ribeiro
Eunice Ribeiro
Antonio J. Marques CardosoAntonio J. Marques Cardoso
Antonio J. Marques Cardoso
CBChiara Boccaletti
Chiara Boccaletti
Interleaved dc-dc converters have been widely applied, because of their benefits related to efficiency, size, thermal management, modularity, and output current ripple cancellation. These converters present an enhanced fault tolerance capability, but an open-circuit fault can leads to ripple beyond load requirements. This paper presents a fault-diagnostic method for interleaved dc-dc converters using only the dc-link current derivative sign features. The dc-link current derivative is thoroughly studied for both healthy and faulty modes. Its sign variation during different time intervals defined by the number of switches in conduction mode contains important information for open-circuit fault detection. The presented method is robust to transients and current imbalance between phases and no additional sensors are required. A photovoltaic system application is presented to validate this method.
1 January 2001 in Journal of Engineering for Gas Turbines and Power
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Journal Article
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CBChiara Boccaletti
Chiara Boccaletti
GCG. Cerri
G. Cerri
BSB. Seyedan
B. Seyedan
The objective of the paper is to assess the feasibility of the neural network (NN) approach in power plant process evaluations. A “feed-forward” technique with a back propagation algorithm was applied to a gas turbine equipped with waste heat boiler and water heater. Data from physical or empirical simulators of plant components were used to train such a NN model. Results obtained using a conventional computing technique are compared with those of the direct method based on a NN approach. The NN simulator was able to perform calculations in a really short computing time with a high degree of accuracy, predicting various steady-state operating conditions on the basis of inputs that can be easily obtained with existing plant instrumentation. The optimization of NN parameters like number of hidden neurons, training sample size, and learning rate is discussed in the paper.
1 February 2014 in Renewable Energy
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Journal Article
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CBChiara Boccaletti
Chiara Boccaletti
PFPietro Di Felice
Pietro Di Felice
ESEzio Santini
Ezio Santini
24 December 2020 in IEEE Potentials
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Journal Article
Closed access
AFAMRO M. FARID
AMRO M. FARID
MAMuhannad Alshareef
Muhannad Alshareef
PBParupkar Singh Badhesha
Parupkar Singh Badhesha
CBChiara Boccaletti
Chiara Boccaletti
NCNelio Alessandro Azevedo Cacho
Nelio Alessandro Azevedo Cacho
YWYinhai Wang
Yinhai Wang
At the turn of the 21st century, urban development has experienced a paradigm shift so that the quest for smarter cities has become a priority agenda, with the direct participation of industry, policy makers, practitioners, and the scientific community alike. The 2008 financial crisis, the exodus from rural areas, and the densification of urban centers coupled with environmental and sustainability concerns has posed enormous challenges to municipalities all over the globe. The United Nations predicts that the world population will reach 9.8 billion by 2050, a growth of 2.1 billion from the 2018 level. Almost all of this population growth will occur in urban areas and, consequently, stress already overloaded transportation systems.
1 October 2012
Verified
Conference Paper
Closed access
ERE. Ribeiro
E. Ribeiro
Antonio J. Marques CardosoAntonio J. Marques Cardoso
Antonio J. Marques Cardoso
CBChiara Boccaletti
Chiara Boccaletti
The reliability of bidirectional dc-dc converters is a critical issue in many applications where the power flows from or to energy storage systems regularly, such as automotive applications and standalone power systems. This paper addresses dual active bridge converters faulty operation and proposes a fault detection method.