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P. Verde
DIEI, Universit degli Studi di Cassino e del Lazio Meridionale Dipartimento di Ingegneria Elettrica e dell'Informazione Maurizio Scarano, 224935 Cassino, Italy

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Journal article
Published: 25 February 2021 in Energies
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This paper presents the preliminary results of our research activity aimed at forecasting the number of voltage sags in distribution networks. The final goal of the research is to develop proper algorithms that the network operators could use to forecast how many voltage sags will occur at a given site. The availability of four years of measurements at Italian Medium Voltage (MV) networks allowed the statistical analyses of the sample voltage sags without performing model-based simulations of the electric systems in short-circuit conditions. The challenge we faced was to overcome the barrier of the extremely long measurement times that are considered mandatory to obtain a forecast with adequate confidence. The method we have presented uses the random variable time to next event to characterize the statistics of the voltage sags instead of the variable number of sags, which usually is expressed on an annual basis. The choice of this variable allows the use of a large data set, even if only a few years of measurements are available. The statistical characterization of the measured voltage sags by the variable time to next event requires preliminary data-conditioning steps, since the voltage sags that are measured can be divided in two main categories, i.e., rare voltage sags and clusters of voltage sags. Only the rare voltage sags meet the conditions of a Poisson process, and they can be used to forecast the performance that can be expected in the future. However, the clusters do not have the characteristics of memoryless events because they are sequential, time-dependent phenomena the occurrences of which are due to exogenic factors, such as rain, lightning strikes, wind, and other adverse weather conditions. In this paper, we show that filtering the clusters out from all the measured sags is crucial for making successful forecast. In addition, we show that a filter, equal for all of the nodes of the system, represents the origin of the most important critical aspects in the successive steps of the forecasting method. In the paper, we also provide a means of tracking the main problems that are encountered. The initial results encouraged the future development of new efficient techniques of filtering on a site-by-site basis to eliminate the clusters.

ACS Style

Michele De Santis; Leonardo Di Stasio; Christian Noce; Paola Verde; Pietro Varilone. Initial Results of an Extensive, Long-Term Study of the Forecasting of Voltage Sags. Energies 2021, 14, 1264 .

AMA Style

Michele De Santis, Leonardo Di Stasio, Christian Noce, Paola Verde, Pietro Varilone. Initial Results of an Extensive, Long-Term Study of the Forecasting of Voltage Sags. Energies. 2021; 14 (5):1264.

Chicago/Turabian Style

Michele De Santis; Leonardo Di Stasio; Christian Noce; Paola Verde; Pietro Varilone. 2021. "Initial Results of an Extensive, Long-Term Study of the Forecasting of Voltage Sags." Energies 14, no. 5: 1264.

Journal article
Published: 01 January 2021 in IEEE Transactions on Power Delivery
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This paper provides a means of forecasting the future average performance a regional electric power system in terms of sags per year based on data accumulated over a four-year period. The paper also presents statistical analyses of the measured data. The sags measured in real systems consist of both rare voltage sags and grouped voltage sags (clusters); clusters are stochastic events that must be detected and removed to allow the estimation of the future performance based on a Poisson process. To detect and remove the clusters, new site indices of intermittence are proposed. These indices were measured in every site at which clusters were present, and the measurements included the frequency, time of grouping, and the large number of sags that constituted them. The performance of the forecast was evaluated by comparing the results obtained using the proposed indices with the results derived using a time filter equal for every site. The results showed that the forecast of the rare voltage using a few years' worth of field data had acceptable errors and was not prohibitive. The main aspect, which must be investigated further, is related to the choice of the best threshold on the intermittence site indices.

ACS Style

Michele Desantis; Leonardo Di Stasio; Christian Noce; Paola Verde; Pietro Varilone. Indices of Intermittence to Improve the Forecasting of the Voltage Sags Measured in Real Systems. IEEE Transactions on Power Delivery 2021, PP, 1 -1.

AMA Style

Michele Desantis, Leonardo Di Stasio, Christian Noce, Paola Verde, Pietro Varilone. Indices of Intermittence to Improve the Forecasting of the Voltage Sags Measured in Real Systems. IEEE Transactions on Power Delivery. 2021; PP (99):1-1.

Chicago/Turabian Style

Michele Desantis; Leonardo Di Stasio; Christian Noce; Paola Verde; Pietro Varilone. 2021. "Indices of Intermittence to Improve the Forecasting of the Voltage Sags Measured in Real Systems." IEEE Transactions on Power Delivery PP, no. 99: 1-1.

Journal article
Published: 14 January 2020 in Energies
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This paper deals with the optimal planning of the electrical energy storage systems in the microgrids aimed at cost minimization. The optimization accounts for the compensation of the voltage dips performed by the energy storage systems. A multi-step procedure, at the first step, identifies a set of candidate buses where the installation of a storage device produces the maximum benefit in terms of dip compensation; then, the life cycle costs in correspondence of different alternatives in terms of size and location of the storage systems are evaluated by considering an optimized use of the energy storage systems. The simulations on a medium voltage microgrid allowed validating the effectiveness of the proposed procedure.

ACS Style

Fabio Mottola; Daniela Proto; Pietro Varilone; Paola Verde. Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips. Energies 2020, 13, 401 .

AMA Style

Fabio Mottola, Daniela Proto, Pietro Varilone, Paola Verde. Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips. Energies. 2020; 13 (2):401.

Chicago/Turabian Style

Fabio Mottola; Daniela Proto; Pietro Varilone; Paola Verde. 2020. "Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips." Energies 13, no. 2: 401.

Conference paper
Published: 01 July 2019 in 2019 International Conference on Clean Electrical Power (ICCEP)
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Two different hybrid methods (HM) were considered and compared in distribution systems with distributed generation (DG) units for ascertaining the systems where measured voltage sags originated. These methods, namely M1 and M2, use only the measured voltage during the fault at the medium voltage (MV) busbars of the high voltage/medium voltage (HVIMV) substations. Two main aspects, typical of distribution systems with DG, were considered: the presence of on load tap changer (OLTC) of the HVIMV transformers and the action of the DG units in support of the local voltage. The methods M1 and M2 were applied and compared on a part of a real HVIMV system. We used time-domain simulations, and forced short circuits in several nodes of the system. In such conditions, in which the origin of the voltage sags was known, we were able to appreciate the reliability of the methods.

ACS Style

C. Noce; M. De Santis; L. Di Stasio; P. Varilone; Paola Verde. Detecting the Origin of the Voltage Sags Measured in the Smart Grids. 2019 International Conference on Clean Electrical Power (ICCEP) 2019, 129 -135.

AMA Style

C. Noce, M. De Santis, L. Di Stasio, P. Varilone, Paola Verde. Detecting the Origin of the Voltage Sags Measured in the Smart Grids. 2019 International Conference on Clean Electrical Power (ICCEP). 2019; ():129-135.

Chicago/Turabian Style

C. Noce; M. De Santis; L. Di Stasio; P. Varilone; Paola Verde. 2019. "Detecting the Origin of the Voltage Sags Measured in the Smart Grids." 2019 International Conference on Clean Electrical Power (ICCEP) , no. : 129-135.

Journal article
Published: 19 April 2019 in Energies
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This paper presents a probabilistic model for supporting the process of decision making about the value of new lighting systems in existing road tunnels when some data and parameters are affected by uncertainty. The proposed model, which we have called Probabilistic Energy Screening of Tunnel (PrEST), accounts for both the technical performance and the economic objectives of the new lighting systems. The technical performance is described on an adequate (x, y) plane that was defined by two indices. The first index measured the consumption of electricity per kilometre of tunnel lengths; the second index measured the performance of the lighting systems per unit of illuminated area. The economic results were measured by the net present value of the savings and by the payback period. Both the terms account for initial capital investments, energy and maintenance costs. PrEST was applied to two real road tunnels in service in Italy showing that the statistics of the results can support a final decision in function of the business strategy.

ACS Style

Antonio Bracale; Pierluigi Caramia; Pietro Varilone; Paola Verde. Probabilistic Estimation of the Energy Consumption and Performance of the Lighting Systems of Road Tunnels for Investment Decision Making. Energies 2019, 12, 1488 .

AMA Style

Antonio Bracale, Pierluigi Caramia, Pietro Varilone, Paola Verde. Probabilistic Estimation of the Energy Consumption and Performance of the Lighting Systems of Road Tunnels for Investment Decision Making. Energies. 2019; 12 (8):1488.

Chicago/Turabian Style

Antonio Bracale; Pierluigi Caramia; Pietro Varilone; Paola Verde. 2019. "Probabilistic Estimation of the Energy Consumption and Performance of the Lighting Systems of Road Tunnels for Investment Decision Making." Energies 12, no. 8: 1488.

Journal article
Published: 11 April 2019 in Robotics
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This paper addresses the effects of electric power quality on robotic operations. A general overview is reported to highlight the main characteristics of electric power quality and it’s effects on a powered system by considering an end-user’s viewpoint. Then, the authors outline the influence of voltage dip effects by focusing on robotic grasping applications. A specific case study is reported, namely that of LARM Hand IV, a three-fingered robotic hand which has been designed and built at LARM in Cassino, Italy. A dedicated test rig has been developed and set up to generate predefined voltage dips. Experimental tests are carried out to evaluate the effects of different types of voltage dip on the grasping of objects.

ACS Style

Giuseppe Carbone; Marco Ceccarelli; Christopher Fabrizi; Pietro Varilone; Paola Verde. Effects of Voltage Dips on Robotic Grasping. Robotics 2019, 8, 28 .

AMA Style

Giuseppe Carbone, Marco Ceccarelli, Christopher Fabrizi, Pietro Varilone, Paola Verde. Effects of Voltage Dips on Robotic Grasping. Robotics. 2019; 8 (2):28.

Chicago/Turabian Style

Giuseppe Carbone; Marco Ceccarelli; Christopher Fabrizi; Pietro Varilone; Paola Verde. 2019. "Effects of Voltage Dips on Robotic Grasping." Robotics 8, no. 2: 28.

Conference paper
Published: 01 June 2018 in 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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In this paper, the influence of the distributed generation on the severity of the voltage sags (dips) caused by the three phase short circuits along the feeders was considered. For obtaining the voltage sags, we used the fault position method (FPM). The paper demonstrates that the FPM involves acceptable accuracy with reduced computational efforts. This paper, in particular, deals with the effects of the units of the distributed generation on the quality of the voltage in the HV networks. The considered units are connected to the transmission system by means of HV/MV stations, and the severity of the dips through the transmission system was assessed in different generation scenarios. The numerical applications refer to a part of a real transmission system using actual data of the transmission system operator (TSO).

ACS Style

E. Di Mambro; P. Caramia; P. Varilone; P. Verde. Sag Estimation of Real Transmission Systems for Faults Along the Lines in the Presence of Distributed Generation. 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 2018, 1 -5.

AMA Style

E. Di Mambro, P. Caramia, P. Varilone, P. Verde. Sag Estimation of Real Transmission Systems for Faults Along the Lines in the Presence of Distributed Generation. 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe). 2018; ():1-5.

Chicago/Turabian Style

E. Di Mambro; P. Caramia; P. Varilone; P. Verde. 2018. "Sag Estimation of Real Transmission Systems for Faults Along the Lines in the Presence of Distributed Generation." 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) , no. : 1-5.

Conference paper
Published: 01 May 2018 in 2018 18th International Conference on Harmonics and Quality of Power (ICHQP)
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In this paper, we analysed two methods, M1 and M2, for determining in which network the voltage sags originated. The problem referred to the High Voltage (HV) and Medium Voltage (MV) systems interconnected by HV/MV stations. The methods were compared using time domain simulations, short circuits were forced on the HV or the MV network, the voltage sags were observed, and M1 and M2 were applied. Comparisons of M1 and M2 behaviours were done for the same network architecture with and without Distributed Generation (DG).

ACS Style

C. Noce; M. De Santis; P. Varilone; P. Verde. Comparison of methods using only voltage measurements for detecting the origin of voltage sags in the modern distribution networks. 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) 2018, 1 -6.

AMA Style

C. Noce, M. De Santis, P. Varilone, P. Verde. Comparison of methods using only voltage measurements for detecting the origin of voltage sags in the modern distribution networks. 2018 18th International Conference on Harmonics and Quality of Power (ICHQP). 2018; ():1-6.

Chicago/Turabian Style

C. Noce; M. De Santis; P. Varilone; P. Verde. 2018. "Comparison of methods using only voltage measurements for detecting the origin of voltage sags in the modern distribution networks." 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) , no. : 1-6.

Conference paper
Published: 01 May 2018 in 2018 18th International Conference on Harmonics and Quality of Power (ICHQP)
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In this paper, we dealt with the problem of the voltage sags due to faults along the lines using the Fault Position Method (FPM). The objective of the study was to demonstrate that for actual transmission systems the FPM can be used in a very effective way to solve real problems with acceptable accuracy and reduced computational times. A very simple procedure for adding further fault positions along the lines, if needed, is proposed. Numerical applications provide evidence of the proposed method. The results obtained were based on a portion of the Italian transmission system and the quantities we used were obtained from the data of the TSO.

ACS Style

E. Di Mambro; P. Caramia; P. Varilone; P. Verde. Voltage sag estimation of real transmission systems for faults along the lines. 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) 2018, 1 -6.

AMA Style

E. Di Mambro, P. Caramia, P. Varilone, P. Verde. Voltage sag estimation of real transmission systems for faults along the lines. 2018 18th International Conference on Harmonics and Quality of Power (ICHQP). 2018; ():1-6.

Chicago/Turabian Style

E. Di Mambro; P. Caramia; P. Varilone; P. Verde. 2018. "Voltage sag estimation of real transmission systems for faults along the lines." 2018 18th International Conference on Harmonics and Quality of Power (ICHQP) , no. : 1-6.

Journal article
Published: 01 January 2018 in Electric Power Systems Research
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This paper deals with the assessment of the origin of voltage sags due to faults in real, interconnected networks. The first step in regulating such faults is to determine the origins of measured voltage sags. Thus, the challenge of this study was to use only the main measurements associated with voltage sags, i.e., the residual voltage, the time the voltage sags occurred, and their duration to detect their origins. No correlations with data from the existing protection systems were used because they were not available. Different operators who do not exchange any data with each other manage the interconnected networks that we considered, and this increased the complexity of the study. In this paper, we analysed the main aspects of the propagation of voltage sags in interconnected networks, and we focused our attention on High Voltage (HV) and Medium Voltage (MV) systems interconnected by HV/MV stations. Two methods were used to determine where the voltage sags originated in the network, and the methods used only the measurements associated with the voltage sags. Both methods were used to evaluate the huge number of measured voltage sags that occurred in an MV distribution system over a period of one year. These two methods: are presented after a brief review of the theoretical methods for simulating the propagation of voltage sags among the nodes of an electrical network. This review is valuable for defining the rules associated with each method. The paper contributes to the literature by providing analyses of a huge number of voltage sags measured in interconnected systems. The main outcomes show that it is possible to detect the origin of the sags using the main measurements of the voltage during the fault only on the MV side of the transformers that are installed in the HV/MV stations. The statistical analysis of these measurements allowed us to classify the origins of the sags better than imposing any conditions on the value of the residual voltages of the sags. Conversely, the origin of the sags in the HV network can be identified better if limits are assigned to the residual voltages.

ACS Style

M. De Santis; C. Noce; Pietro Varilone; P. Verde. Analysis of the origin of measured voltage sags in interconnected networks. Electric Power Systems Research 2018, 154, 391 -400.

AMA Style

M. De Santis, C. Noce, Pietro Varilone, P. Verde. Analysis of the origin of measured voltage sags in interconnected networks. Electric Power Systems Research. 2018; 154 ():391-400.

Chicago/Turabian Style

M. De Santis; C. Noce; Pietro Varilone; P. Verde. 2018. "Analysis of the origin of measured voltage sags in interconnected networks." Electric Power Systems Research 154, no. : 391-400.

Journal article
Published: 11 July 2017 in Energies
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In this paper, we analysed the growing penetration of generating units from renewable energy sources in transmission power systems. Among the possible effects of the interaction of distributed generation (DG) with transmission systems, we considered the abnormal operating conditions caused by short circuits in the transmission systems and the resulting voltage sags that occur in the network. A systematic method is presented for analysing the voltage sag behaviour of any transmission system in which large DG units are connected to the transmission system by means of High Voltage/Medium Voltage (HV/MV) stations. The method proposed for obtaining the voltage sags is the fault position method (FPM), from which we derived a graphical visualization of the during-fault voltage (DFV) matrix as a valuable tool to obtain an immediate measure of the propagation of voltage sags in the network. The results obtained were based on a portion of a real transmission system. The system that we considered is an actual portion of the Italian transmission system, and all of the quantities we used were obtained from the data of the Transmission system operator (TSO).

ACS Style

Pierluigi Caramia; Enrica Di Mambro; Pietro Varilone; Paola Verde. Impact of Distributed Generation on the Voltage Sag Performance of Transmission Systems. Energies 2017, 10, 959 .

AMA Style

Pierluigi Caramia, Enrica Di Mambro, Pietro Varilone, Paola Verde. Impact of Distributed Generation on the Voltage Sag Performance of Transmission Systems. Energies. 2017; 10 (7):959.

Chicago/Turabian Style

Pierluigi Caramia; Enrica Di Mambro; Pietro Varilone; Paola Verde. 2017. "Impact of Distributed Generation on the Voltage Sag Performance of Transmission Systems." Energies 10, no. 7: 959.

Conference paper
Published: 01 October 2015 in 2015 AEIT International Annual Conference (AEIT)
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This paper presents an innovative smart measurement system, as well as investigates the challenges and trends in the development of distributed Power Quality (PQ) smart measurement systems. PQ monitoring is getting importance for the customers even for the more sensitive modern equipment. Up today, the control and supervision of an industrial process has mainly been focused on the electrical protection, and little attention has been paid to the quality of the electrical supplies. Nowadays, measurement and communication systems have advanced to enable the installation of web-based sensors within a PQ assessment scenario. In this perspective, we propose a measurement instrument easy to use, chip, flexible, and with advanced world wide web capability. This paper also shows the first releases of prototypes already realised.

ACS Style

M. Di Manno; P. Varilone; P. Verde; M. De Santis; C. Di Perna; M. Salemme. User friendly smart distributed measurement system for monitoring and assessing the electrical power quality. 2015 AEIT International Annual Conference (AEIT) 2015, 1 -5.

AMA Style

M. Di Manno, P. Varilone, P. Verde, M. De Santis, C. Di Perna, M. Salemme. User friendly smart distributed measurement system for monitoring and assessing the electrical power quality. 2015 AEIT International Annual Conference (AEIT). 2015; ():1-5.

Chicago/Turabian Style

M. Di Manno; P. Varilone; P. Verde; M. De Santis; C. Di Perna; M. Salemme. 2015. "User friendly smart distributed measurement system for monitoring and assessing the electrical power quality." 2015 AEIT International Annual Conference (AEIT) , no. : 1-5.

Conference paper
Published: 01 September 2014 in 2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT)
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This paper presents the results of the work conducted in cooperation with ANAS, which is in charge of the Italian road and highway network of national interest. The cooperation also is framed into the Italian Technical Committee on Strategic Theme 4 - Infrastructure for the specific topic of “Balancing of environmental and engineering aspects in management of road networks.” The paper presents an improved model, the EST (Energy Screening of Tunnels) model, to account for both the consumption of electricity and the performance of tunnel lighting systems. The models were developed so that each tunnel was represented on an adequate (x, y) plane that was defined by two indices. The main improvements of the model include the introduction of boundary values of the indices derived from International Standards and from resolutions of the Italian Authority of Electrical Energy and Gas.

ACS Style

P. Varilone; P. Verde; F. Caporaso; E. Cesolini; S. Drusin. Integrated modelling and experimental verification of energy consumption and performance of the lighting systems of tunnels. 2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT) 2014, 1 -6.

AMA Style

P. Varilone, P. Verde, F. Caporaso, E. Cesolini, S. Drusin. Integrated modelling and experimental verification of energy consumption and performance of the lighting systems of tunnels. 2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT). 2014; ():1-6.

Chicago/Turabian Style

P. Varilone; P. Verde; F. Caporaso; E. Cesolini; S. Drusin. 2014. "Integrated modelling and experimental verification of energy consumption and performance of the lighting systems of tunnels." 2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT) , no. : 1-6.

Journal article
Published: 01 May 2014 in Electric Power Systems Research
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ACS Style

A.R. Di Fazio; Vincenzo Duraccio; Pietro Varilone; P. Verde. Voltage sags in the automotive industry: Analysis and solutions. Electric Power Systems Research 2014, 110, 25 -30.

AMA Style

A.R. Di Fazio, Vincenzo Duraccio, Pietro Varilone, P. Verde. Voltage sags in the automotive industry: Analysis and solutions. Electric Power Systems Research. 2014; 110 ():25-30.

Chicago/Turabian Style

A.R. Di Fazio; Vincenzo Duraccio; Pietro Varilone; P. Verde. 2014. "Voltage sags in the automotive industry: Analysis and solutions." Electric Power Systems Research 110, no. : 25-30.

Journal article
Published: 01 April 2014 in Renewable Energy and Power Quality Journal
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ACS Style

P. Caramia; P. Varilone; P. Verde; L. Vitale. Tools for Assessing the Robustness of Electrical System against Voltage Dips in terms of Amplitude, Duration and Frequency. Renewable Energy and Power Quality Journal 2014, 177 -182.

AMA Style

P. Caramia, P. Varilone, P. Verde, L. Vitale. Tools for Assessing the Robustness of Electrical System against Voltage Dips in terms of Amplitude, Duration and Frequency. Renewable Energy and Power Quality Journal. 2014; ():177-182.

Chicago/Turabian Style

P. Caramia; P. Varilone; P. Verde; L. Vitale. 2014. "Tools for Assessing the Robustness of Electrical System against Voltage Dips in terms of Amplitude, Duration and Frequency." Renewable Energy and Power Quality Journal , no. : 177-182.

Conference paper
Published: 01 July 2012 in 2012 7th International Conference on System of Systems Engineering (SoSE)
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The integration of distributed energy resources for the production of electrical energy is related to the evolution of future power distribution networks in order to achieve: flexibility (meeting final user's requirements); accessibility (allowing access to local generation and particularly to renewables); reliability (ensuring the highest possible security and power quality levels); economy (allowing an adequate management of energy in an efficient and competitive way).In this framework, the paper presents some results of a joint research project involving five Italian universities. The focus is on the proposition and development of the main functionalities implemented into a centralized Distribution Management System (DMS) for the operation and control of the energy resources connected to distribution networks (generation, storage and loads) and of the network itself (automation systems, protection, etc.). Architecture, hierarchical structure and relevant functions for the control, operation and management of the active distribution network, are illustrated.

ACS Style

R. Caldon; S. Massucco; C.A. Nucci; Fabrizio Pilo; Paola Verde. Development of innovative systems for operation and control of electric power distribution networks: Management and optimal use of distributed generation and of nenewable energy resources. 2012 7th International Conference on System of Systems Engineering (SoSE) 2012, 25 -31.

AMA Style

R. Caldon, S. Massucco, C.A. Nucci, Fabrizio Pilo, Paola Verde. Development of innovative systems for operation and control of electric power distribution networks: Management and optimal use of distributed generation and of nenewable energy resources. 2012 7th International Conference on System of Systems Engineering (SoSE). 2012; ():25-31.

Chicago/Turabian Style

R. Caldon; S. Massucco; C.A. Nucci; Fabrizio Pilo; Paola Verde. 2012. "Development of innovative systems for operation and control of electric power distribution networks: Management and optimal use of distributed generation and of nenewable energy resources." 2012 7th International Conference on System of Systems Engineering (SoSE) , no. : 25-31.

Journal article
Published: 02 June 2011 in IEEE Transactions on Power Delivery
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The problem of developing a definition that adequately assesses power-quality (PQ) levels in the presence of distributed generation (DG) is addressed by using proper probabilistic indices for distribution networks. In the planning of new DG installations, these indices take the variation of PQ level into account and use weighting functions properly. They are useful in quantifying the impact of the installation of DG units because they can consider several PQ disturbances simultaneously. Also, they indicate how each PQ disturbance may affect the decision concerning the installation of DG units. Several tests on real distribution networks were performed and discussed in order to show the usefulness of these indices in evidencing the impact of DG on PQ levels. The analysis of the electrical distribution systems on the basis of the considered indices is valuable also to help decide the best allocation and size of distributed generators.

ACS Style

Antonio Bracale; Pierluigi Caramia; Guido Carpinelli; Angela Russo; Paola Verde. Site and System Indices for Power-Quality Characterization of Distribution Networks With Distributed Generation. IEEE Transactions on Power Delivery 2011, 26, 1304 -1316.

AMA Style

Antonio Bracale, Pierluigi Caramia, Guido Carpinelli, Angela Russo, Paola Verde. Site and System Indices for Power-Quality Characterization of Distribution Networks With Distributed Generation. IEEE Transactions on Power Delivery. 2011; 26 (3):1304-1316.

Chicago/Turabian Style

Antonio Bracale; Pierluigi Caramia; Guido Carpinelli; Angela Russo; Paola Verde. 2011. "Site and System Indices for Power-Quality Characterization of Distribution Networks With Distributed Generation." IEEE Transactions on Power Delivery 26, no. 3: 1304-1316.

Conference paper
Published: 01 September 2010 in Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010
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Electrical power system robustness is defined as the intrinsic capacity of an electrical power system to maintain assigned disturbance levels when external conditions change. In this paper the concept of robustness against is applied to the voltage dips, one of the most severe disturbances in power quality. Using graphical color schemes as immediate tools, improvements and/or degradations of the electrical power system robustness are assessed when the structure of distribution system is modified. In particular, both substitutions of components (from overhead to cable lines) and installation of new components (connection of DG units) are considered as possible structure modifications. The proposed tools are applied to different study cases.

ACS Style

Pierluigi Caramia; Pietro Varilone; P. Verde; Lorenza Vitale. On the robustness of the distribution systems against voltage dips: The analytical assessment for different structure variations. Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010 2010, 1 -6.

AMA Style

Pierluigi Caramia, Pietro Varilone, P. Verde, Lorenza Vitale. On the robustness of the distribution systems against voltage dips: The analytical assessment for different structure variations. Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010. 2010; ():1-6.

Chicago/Turabian Style

Pierluigi Caramia; Pietro Varilone; P. Verde; Lorenza Vitale. 2010. "On the robustness of the distribution systems against voltage dips: The analytical assessment for different structure variations." Proceedings of 14th International Conference on Harmonics and Quality of Power - ICHQP 2010 , no. : 1-6.

Proceedings article
Published: 01 July 2010 in 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century
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Power quality (PQ) regulation is of great importance due to the economical consequences associated with the presence of the disturbances in power systems. Regulations should provide interventions at the system level (transmission and distribution networks) and the local level at the point of common coupling between utilities and customers. This paper proposes an integrated approach for overall voltage quality regulation; in particular, it focuses on regulation at the system level, which seems to be widely applicable. The regulation structures proposed for system regulation use global indices to characterize the voltage quality. A numerical application supports the theoretical considerations.

ACS Style

A. Bracale; Guido Carpinelli; Pierluigi Caramia; P. Verde; R. Chiumeo; F. Tarsia. System voltage quality regulation for continuous disturbances. 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century 2010, 1 -8.

AMA Style

A. Bracale, Guido Carpinelli, Pierluigi Caramia, P. Verde, R. Chiumeo, F. Tarsia. System voltage quality regulation for continuous disturbances. 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. 2010; ():1-8.

Chicago/Turabian Style

A. Bracale; Guido Carpinelli; Pierluigi Caramia; P. Verde; R. Chiumeo; F. Tarsia. 2010. "System voltage quality regulation for continuous disturbances." 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century , no. : 1-8.

Book chapter
Published: 03 September 2009 in Time-Varying Waveform Distortions in Power Systems
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ACS Style

Pierluigi Caramia; Guido Carpinelli; Angela Russo; P. Verde; Pietro Varilone. Probabilistic Harmonic Indices. Time-Varying Waveform Distortions in Power Systems 2009, 137 -147.

AMA Style

Pierluigi Caramia, Guido Carpinelli, Angela Russo, P. Verde, Pietro Varilone. Probabilistic Harmonic Indices. Time-Varying Waveform Distortions in Power Systems. 2009; ():137-147.

Chicago/Turabian Style

Pierluigi Caramia; Guido Carpinelli; Angela Russo; P. Verde; Pietro Varilone. 2009. "Probabilistic Harmonic Indices." Time-Varying Waveform Distortions in Power Systems , no. : 137-147.