Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872024
G. Brusaglino, Roberto Gava, M. Leon
The European Project TECMEHV, started in October 2011 and extended to September 2014, in the frame of the EU Lifelong Learning Programme Leonardo Da Vinci, is aiming to the definition and development of a Competence Framework with Training Modules for online courses dedicated to operators on electric and hybrid vehicles, especially for maintenance and repair operations and technical assistance. The Training Modules are developed addressing operational and technical competences needed to approach maintenance and repair operations on vehicles in the key technical areas of the system architecture and especially in the field where the safety attention is prominent. The Project is coordinated by ASCAMM, with partners ATA, EPFL, NORAUTO, University Duisburg and associated partners CRF and STA.
{"title":"TECMEHV — An European Project for professional formation of electric and hybrid vehicle operators","authors":"G. Brusaglino, Roberto Gava, M. Leon","doi":"10.1109/SPEEDAM.2014.6872024","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872024","url":null,"abstract":"The European Project TECMEHV, started in October 2011 and extended to September 2014, in the frame of the EU Lifelong Learning Programme Leonardo Da Vinci, is aiming to the definition and development of a Competence Framework with Training Modules for online courses dedicated to operators on electric and hybrid vehicles, especially for maintenance and repair operations and technical assistance. The Training Modules are developed addressing operational and technical competences needed to approach maintenance and repair operations on vehicles in the key technical areas of the system architecture and especially in the field where the safety attention is prominent. The Project is coordinated by ASCAMM, with partners ATA, EPFL, NORAUTO, University Duisburg and associated partners CRF and STA.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124176921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872126
M. Falvo, G. Graditi, P. Siano
An important support in Demand Response (DR) programs can be provided by the Electric Vehicles (EVs). EVs may behave as a load to the grid, a supplier of electricity to the grid or an energy storage device. Thanks to the smart grid enabling technologies, Utilities can manage EVs charging time and rates, gather EVs-detailed meter data and, therefore, implement DR programs. In the present paper an overview on DR definitions and a classification of the types of customers involved and implementable programs is reported. Then a special focus on EVs integration in DR programs is given, stressing the valuable services that EVs in smart grid asset can provide.
{"title":"Electric Vehicles integration in demand response programs","authors":"M. Falvo, G. Graditi, P. Siano","doi":"10.1109/SPEEDAM.2014.6872126","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872126","url":null,"abstract":"An important support in Demand Response (DR) programs can be provided by the Electric Vehicles (EVs). EVs may behave as a load to the grid, a supplier of electricity to the grid or an energy storage device. Thanks to the smart grid enabling technologies, Utilities can manage EVs charging time and rates, gather EVs-detailed meter data and, therefore, implement DR programs. In the present paper an overview on DR definitions and a classification of the types of customers involved and implementable programs is reported. Then a special focus on EVs integration in DR programs is given, stressing the valuable services that EVs in smart grid asset can provide.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121973268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871950
M. Huba, P. Bisták, I. Bélai
This paper treats a noise attenuation motivated position controller design outlined in [1]. This modular approach to a filtered PD and a disturbance observer based filtered PID (FPD and DO-FPID) control design, including an experimental evaluation of an optimal filter degree choice, is extended to a constrained control grounded in the invariant set approach [2]-[4]. Loop performance is evaluated by recently introduced measures for deviations from monotonic and two-pulse shapes of transients typical for control of plants with dominant 2nd order dynamics. The analysis shows that a simplified disturbance observer (DO) based constrained filtered PID controller (DO-CFPID) derived for a double integrator plant model gives an interesting performance also for constrained integral systems with a stable mode. It remains simple and it offers an excellent performance also from the point of view of the noise attenuation versus speed of transients.
{"title":"Noise attenuation motivated controller design. Part II: Position control","authors":"M. Huba, P. Bisták, I. Bélai","doi":"10.1109/SPEEDAM.2014.6871950","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871950","url":null,"abstract":"This paper treats a noise attenuation motivated position controller design outlined in [1]. This modular approach to a filtered PD and a disturbance observer based filtered PID (FPD and DO-FPID) control design, including an experimental evaluation of an optimal filter degree choice, is extended to a constrained control grounded in the invariant set approach [2]-[4]. Loop performance is evaluated by recently introduced measures for deviations from monotonic and two-pulse shapes of transients typical for control of plants with dominant 2nd order dynamics. The analysis shows that a simplified disturbance observer (DO) based constrained filtered PID controller (DO-CFPID) derived for a double integrator plant model gives an interesting performance also for constrained integral systems with a stable mode. It remains simple and it offers an excellent performance also from the point of view of the noise attenuation versus speed of transients.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"65 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120835304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872105
E. Santini, M. Bitetti, A. Boccitto, A. Cervone, S. Teodori
The present paper analyses the financial aspects of investing in different renewable energy technologies: photovoltaic, wind and hydro. To perform the financial analysis on the afore-mentioned plants for different types of investors, three different sizes of system have been considered: 5 kW for domestic uses, 20 kW for small business activities and 1 MW for companies involved in producing and selling energy. A description of present incentives in renewable energy production in Italy in 2013 has been reported. For each case study a comparison of different cost solution has been proposed. To evaluate the financial convenience of the investments specific economical indices have been used and compared.
{"title":"Financial analysis of renewable energy investments in Italy in 2013","authors":"E. Santini, M. Bitetti, A. Boccitto, A. Cervone, S. Teodori","doi":"10.1109/SPEEDAM.2014.6872105","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872105","url":null,"abstract":"The present paper analyses the financial aspects of investing in different renewable energy technologies: photovoltaic, wind and hydro. To perform the financial analysis on the afore-mentioned plants for different types of investors, three different sizes of system have been considered: 5 kW for domestic uses, 20 kW for small business activities and 1 MW for companies involved in producing and selling energy. A description of present incentives in renewable energy production in Italy in 2013 has been reported. For each case study a comparison of different cost solution has been proposed. To evaluate the financial convenience of the investments specific economical indices have been used and compared.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129789852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872000
E. Chiodo
The “stress-strength” reliability model is discussed in the paper as a very efficient method for reliability assessment. Emphasis is given to its robustness, in view of unavoidable model uncertainty. Such uncertainty on reliability models is a key feature of modern components, characterized by a high degree of technological innovations and/or reliability, and so by a limited amount of field data. This occurs for many power system applications, as those related to insulation components, which are the key object of the studies of the paper. In particular, here a Bayesian inference method for the estimation of the above model is illustrated, when Normal or Lognormal models hold for stress and strength. The performance of these estimators are empirically analysed through extensive numerical simulations under a wide range of parameter values. All the results show not only the efficiency of Bayes estimation but also its being strongly "robust". Indeed, many simulations were performed in order to develop a robustness analysis with respect to departures from basic model distributions (e.g. assuming Weibull distributions instead of Lognormal ones for stress and strength). Efficiency and robustness are excellent for very small sample sizes, a very desirable property in view of the above applications.
{"title":"Model robustness analysis of a Bayes stress-strength reliability estimation with limited data","authors":"E. Chiodo","doi":"10.1109/SPEEDAM.2014.6872000","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872000","url":null,"abstract":"The “stress-strength” reliability model is discussed in the paper as a very efficient method for reliability assessment. Emphasis is given to its robustness, in view of unavoidable model uncertainty. Such uncertainty on reliability models is a key feature of modern components, characterized by a high degree of technological innovations and/or reliability, and so by a limited amount of field data. This occurs for many power system applications, as those related to insulation components, which are the key object of the studies of the paper. In particular, here a Bayesian inference method for the estimation of the above model is illustrated, when Normal or Lognormal models hold for stress and strength. The performance of these estimators are empirically analysed through extensive numerical simulations under a wide range of parameter values. All the results show not only the efficiency of Bayes estimation but also its being strongly \"robust\". Indeed, many simulations were performed in order to develop a robustness analysis with respect to departures from basic model distributions (e.g. assuming Weibull distributions instead of Lognormal ones for stress and strength). Efficiency and robustness are excellent for very small sample sizes, a very desirable property in view of the above applications.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128525236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871923
F. Ludwig, Habil Andreas Mockel
In this paper a new method of dynamic flux angle adjustment as a function of field weakening d-axis current by passing through a pre-application teach-in process is proposed. The aim is to reduce torque ripple, power dissipation in the electric drive system and instability of the current control loop caused by faulty rotor flux angle information. Torque-forming parts of the supposed d-current are measured at idle and iteratively forced to zero by varying the actual flux angle. Experiments showed that the proposed calibration method is able to compensate flux angle shifts and their effects on the operation behavior at field weakening.
{"title":"A dynamic angle calibration method for sensored FOC-controlled IPMSM in field weakening region","authors":"F. Ludwig, Habil Andreas Mockel","doi":"10.1109/SPEEDAM.2014.6871923","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871923","url":null,"abstract":"In this paper a new method of dynamic flux angle adjustment as a function of field weakening d-axis current by passing through a pre-application teach-in process is proposed. The aim is to reduce torque ripple, power dissipation in the electric drive system and instability of the current control loop caused by faulty rotor flux angle information. Torque-forming parts of the supposed d-current are measured at idle and iteratively forced to zero by varying the actual flux angle. Experiments showed that the proposed calibration method is able to compensate flux angle shifts and their effects on the operation behavior at field weakening.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128596211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872122
R. Pereira, R. Melício, V. Mendes, J. Figueiredo, J. Martins, A. Fagundes, J. Quadrado
This paper focus on a demand response model analysis in a smart grid context considering a contingency scenario. A fuzzy clustering technique is applied on the developed demand response model and an analysis is performed for the contingency scenario. Model considerations and architecture are described. The demand response developed model aims to support consumers decisions regarding their consumption needs and possible economic benefits.
{"title":"Fuzzy clustering applied to a demand response model in a smart grid contingency scenario","authors":"R. Pereira, R. Melício, V. Mendes, J. Figueiredo, J. Martins, A. Fagundes, J. Quadrado","doi":"10.1109/SPEEDAM.2014.6872122","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872122","url":null,"abstract":"This paper focus on a demand response model analysis in a smart grid context considering a contingency scenario. A fuzzy clustering technique is applied on the developed demand response model and an analysis is performed for the contingency scenario. Model considerations and architecture are described. The demand response developed model aims to support consumers decisions regarding their consumption needs and possible economic benefits.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129557778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872038
S. D'arco, J. Suul
Large-scale Multi-Terminal (MT) HVDC grids will require decentralized control schemes where the converters can autonomously react to load changes or disturbances in the dc grid without the need for fast actions of a centralized controller. The majority of such proposed schemes are based on assigning a static Piece-Wise Linear (PWL) characteristic to each converter terminal, which defines a functional dependence between the dc voltage and the local current or power references of the converter. Despite evident conceptual similarities, the various schemes and combinations of control characteristics are presented in literature with different implementations. This paper discusses the possibility for generalized controllers that can reproduce these static characteristics within a single implementation by only modifying parametric settings. In particular two alternative implementations are discussed, whereof the first option has been previously presented but without explicitly discussing its potential for implementing a generalized PWL controller. An alternative implementation is then developed and described in detail, based on a state-machine controlling the operation of a dc-voltage controller. The proposed generalized PWL implementation is demonstrated by numerical simulation of a four terminal HVDC system.
{"title":"Generalized implementations of piecewise linear control characteristics for multiterminal HVDC","authors":"S. D'arco, J. Suul","doi":"10.1109/SPEEDAM.2014.6872038","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872038","url":null,"abstract":"Large-scale Multi-Terminal (MT) HVDC grids will require decentralized control schemes where the converters can autonomously react to load changes or disturbances in the dc grid without the need for fast actions of a centralized controller. The majority of such proposed schemes are based on assigning a static Piece-Wise Linear (PWL) characteristic to each converter terminal, which defines a functional dependence between the dc voltage and the local current or power references of the converter. Despite evident conceptual similarities, the various schemes and combinations of control characteristics are presented in literature with different implementations. This paper discusses the possibility for generalized controllers that can reproduce these static characteristics within a single implementation by only modifying parametric settings. In particular two alternative implementations are discussed, whereof the first option has been previously presented but without explicitly discussing its potential for implementing a generalized PWL controller. An alternative implementation is then developed and described in detail, based on a state-machine controlling the operation of a dc-voltage controller. The proposed generalized PWL implementation is demonstrated by numerical simulation of a four terminal HVDC system.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129600597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871962
M. Gulec, E. Yolacan, M. Aydin
This work presents the design and control of an 8-slot radial flux magnetic bearing. Design of magnetic bearing is carried out with coupled magnetic equivalent circuit model and finite element analysis (FEA). The magnetic design is verified with 2D FEA and good agreement between the two is obtained. Designed magnetic bearing is assembled into a system and fuzzy logic control is applied to the magnetic bearings to adjust the currents in order to balance the system shaft. The control is performed at the equilibrium position under different disturbances and detailed information about the working space of the designed magnetic bearings is provided.
{"title":"Design and control of an 8-slot radial flux magnetic bearing","authors":"M. Gulec, E. Yolacan, M. Aydin","doi":"10.1109/SPEEDAM.2014.6871962","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871962","url":null,"abstract":"This work presents the design and control of an 8-slot radial flux magnetic bearing. Design of magnetic bearing is carried out with coupled magnetic equivalent circuit model and finite element analysis (FEA). The magnetic design is verified with 2D FEA and good agreement between the two is obtained. Designed magnetic bearing is assembled into a system and fuzzy logic control is applied to the magnetic bearings to adjust the currents in order to balance the system shaft. The control is performed at the equilibrium position under different disturbances and detailed information about the working space of the designed magnetic bearings is provided.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"44 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132371467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872039
G. Carpinelli, S. Khormali, F. Mottola, D. Proto
In this paper, the benefits that can be derived from the installation of an energy storage system in an industrial facility are analyzed, and an optimal control strategy of the storage system is proposed. The proposed control strategy is based on a two-step procedure and aims at (i) reducing the electricity costs sustained by an industrial customer that provides demand response and (ii) satisfying technical constraints for the maximization of the efficiency and lifecycle of the storage system. The procedure was performed based on two different time periods, i.e., day ahead and very short time. The day-ahead scheduling evaluates the peak value of the power that the facility must request from the grid and the periods in which the battery is allowed to charge and discharge; the very short-time control evaluates the battery's charging/discharging power to minimize costs. This paper reports the theoretical aspects of the optimization models for the two-step procedure, whereas the companion paper “Part II: numerical applications” proposes the results of numerical applications of the proposed approach on an actual industrial facility.
{"title":"Demand response and energy storage systems: An industrial application for reducing electricity costs. Part I: Theoretical aspects","authors":"G. Carpinelli, S. Khormali, F. Mottola, D. Proto","doi":"10.1109/SPEEDAM.2014.6872039","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872039","url":null,"abstract":"In this paper, the benefits that can be derived from the installation of an energy storage system in an industrial facility are analyzed, and an optimal control strategy of the storage system is proposed. The proposed control strategy is based on a two-step procedure and aims at (i) reducing the electricity costs sustained by an industrial customer that provides demand response and (ii) satisfying technical constraints for the maximization of the efficiency and lifecycle of the storage system. The procedure was performed based on two different time periods, i.e., day ahead and very short time. The day-ahead scheduling evaluates the peak value of the power that the facility must request from the grid and the periods in which the battery is allowed to charge and discharge; the very short-time control evaluates the battery's charging/discharging power to minimize costs. This paper reports the theoretical aspects of the optimization models for the two-step procedure, whereas the companion paper “Part II: numerical applications” proposes the results of numerical applications of the proposed approach on an actual industrial facility.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130844224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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