Pub Date : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162638
Dipayan P. Ghosh, S. Wicker, L. Blume
Demand response systems seek to flatten the demand for electricity by providing real-time pricing to consumers to motivate avoidance of power-intensive tasks when rates are high. Advanced Metering Infrastructure (AMI) has been developed to facilitate this process, allowing for billing that applies fine-grained prices to fine-grained consumption data. But AMI also presents a unique privacy risk to consumers - fine-grained consumption data reveals a great deal about the behaviour, beliefs, and preferences of consumers. Such information is of interest to third parties, further exacerbating the privacy risk. This suggests a need for AMI to be developed from a privacy-aware perspective. Adopting a game-theoretic model, we consider utilities that offer both privacy-aware and non-privacy-aware AMI. A non-cooperative game is developed in which a representative consumer strategizes against the utility. The regulatory measures required for the desired privacy-facilitating Nash equilibrium of the game are discussed, and recommendations for policymakers are presented. In particular, it is found that a combination of regulation and consumer awareness must overcome the financial benefit arising from the sale of consumption information to third parties.
{"title":"Game theoretic analysis of privacy-aware Advanced Metering Infrastructure","authors":"Dipayan P. Ghosh, S. Wicker, L. Blume","doi":"10.1109/ISGTEurope.2011.6162638","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162638","url":null,"abstract":"Demand response systems seek to flatten the demand for electricity by providing real-time pricing to consumers to motivate avoidance of power-intensive tasks when rates are high. Advanced Metering Infrastructure (AMI) has been developed to facilitate this process, allowing for billing that applies fine-grained prices to fine-grained consumption data. But AMI also presents a unique privacy risk to consumers - fine-grained consumption data reveals a great deal about the behaviour, beliefs, and preferences of consumers. Such information is of interest to third parties, further exacerbating the privacy risk. This suggests a need for AMI to be developed from a privacy-aware perspective. Adopting a game-theoretic model, we consider utilities that offer both privacy-aware and non-privacy-aware AMI. A non-cooperative game is developed in which a representative consumer strategizes against the utility. The regulatory measures required for the desired privacy-facilitating Nash equilibrium of the game are discussed, and recommendations for policymakers are presented. In particular, it is found that a combination of regulation and consumer awareness must overcome the financial benefit arising from the sale of consumption information to third parties.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117206206","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162822
M. Ilić, J. Lang, E. Litvinov, Xiaochuan Luo, J. Tong
In this paper we propose a Coordinated Voltage Control-Enabled HV Smart Grid framework (CVC, in short) for utilizing voltage-controllable equipment in support of enhanced reliable and efficient operations. In the first part of the paper we present the basic problem formulation underlying CVC. This is followed by assessing the effects of performance objectives selected, the type of controllable equipment used and the protocols for allocating responsibilities among Independent System Operators (ISOs) and the equipment owners (both Transmission Owners (TOs) and Generation Owners (GOs)). In the second part of the paper we describe potential benefits from the proposed CVC based on the large-scale simulations for the New England (NE), New York (NY) and Pennsylvania-Jersey-Maryland (PJM) power systems. The simulations for NE and NY power systems are carried out using an AC Extended Optimal Power Flow (AC XOPF), instead of commonly used DC OPF. The use of AC XOPF is necessary in order to assess effects of voltage-controllable equipment on the system ability to meet the desired objectives and to understand their tradeoffs. The performance objectives studied are efficiency measured in terms of generation cost, reliability measured in terms of voltage deviations from the pre-specified ranges, and power delivery to large load areas, New York City (NYC) in particular. Similarly, we report up-to-date improvements measured in terms of transmission loss minimization and management of critical voltages from using Automatic Voltage Control (AVC) in the PJM system. We conclude that the proposed CVC-Enabled HV Smart Grid could bring significant benefits to all three systems and that it would be a timely implementation. However, since the CVC architectures are non-unique it is important to fully understand the implications of their design on the achievable efficiency and reliability enhancements.
{"title":"Toward Coordinated-Voltage-Control-Enabled HV Smart Grids","authors":"M. Ilić, J. Lang, E. Litvinov, Xiaochuan Luo, J. Tong","doi":"10.1109/ISGTEurope.2011.6162822","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162822","url":null,"abstract":"In this paper we propose a Coordinated Voltage Control-Enabled HV Smart Grid framework (CVC, in short) for utilizing voltage-controllable equipment in support of enhanced reliable and efficient operations. In the first part of the paper we present the basic problem formulation underlying CVC. This is followed by assessing the effects of performance objectives selected, the type of controllable equipment used and the protocols for allocating responsibilities among Independent System Operators (ISOs) and the equipment owners (both Transmission Owners (TOs) and Generation Owners (GOs)). In the second part of the paper we describe potential benefits from the proposed CVC based on the large-scale simulations for the New England (NE), New York (NY) and Pennsylvania-Jersey-Maryland (PJM) power systems. The simulations for NE and NY power systems are carried out using an AC Extended Optimal Power Flow (AC XOPF), instead of commonly used DC OPF. The use of AC XOPF is necessary in order to assess effects of voltage-controllable equipment on the system ability to meet the desired objectives and to understand their tradeoffs. The performance objectives studied are efficiency measured in terms of generation cost, reliability measured in terms of voltage deviations from the pre-specified ranges, and power delivery to large load areas, New York City (NYC) in particular. Similarly, we report up-to-date improvements measured in terms of transmission loss minimization and management of critical voltages from using Automatic Voltage Control (AVC) in the PJM system. We conclude that the proposed CVC-Enabled HV Smart Grid could bring significant benefits to all three systems and that it would be a timely implementation. However, since the CVC architectures are non-unique it is important to fully understand the implications of their design on the achievable efficiency and reliability enhancements.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124401903","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 : 2011-12-01DOI: 10.1109/ISGTEUROPE.2011.6162725
J. Kuriakose
The Centre for Alternative Technology (CAT) is a pioneering research and demonstration centre that inspires, informs and enables practical solutions for sustainable living. CAT has established a worldwide reputation as the leading organisation demonstrating environmental technologies.
{"title":"Microgrid system at Centre for Alternative Technology","authors":"J. Kuriakose","doi":"10.1109/ISGTEUROPE.2011.6162725","DOIUrl":"https://doi.org/10.1109/ISGTEUROPE.2011.6162725","url":null,"abstract":"The Centre for Alternative Technology (CAT) is a pioneering research and demonstration centre that inspires, informs and enables practical solutions for sustainable living. CAT has established a worldwide reputation as the leading organisation demonstrating environmental technologies.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121232263","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162749
M. Janssen, P. Crossley, L. Yang
In a world where Smart Grid is the hype, a crucial prerequisite for true “smart” transmission and distribution networks is currently missing; open standards-based communications must be available for the entire “monitoring, control and protection” chain.
{"title":"Bringing IEC 61850 and Smart Grid together","authors":"M. Janssen, P. Crossley, L. Yang","doi":"10.1109/ISGTEurope.2011.6162749","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162749","url":null,"abstract":"In a world where Smart Grid is the hype, a crucial prerequisite for true “smart” transmission and distribution networks is currently missing; open standards-based communications must be available for the entire “monitoring, control and protection” chain.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121316700","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162724
S. Guner, A. Ozdemir
Smart grids are becoming an important issue in the future power system network configurations. Main goal of smart grid is to intelligently integrate the behavior and actions of all users connected to it. There are many researches dealing with the implementation of a self-healed, reliable, sustainable, economic, safe and highly efficient power system network. Many new challenges try to solve the problems that face to transform the conventional grid into a smart grid because of renewable energy integration, communication errors and smart meter disturbance. One of the basic priorities of Turkish Power System is the supply security. Therefore, competitive deregulated market has been restructuring to improve supply security. The generation and distribution parts of Turkish Power System have already been partly privatized. At this initial phase of future smart grid, Distributed generations are being extended as well as installation of remote control and monitoring facilities. In addition, regulatory issues regarding the smart grid are being organized. This paper is focused on the evolution of conventional Turkish Electric Power System, as to constitute a smart grid.
{"title":"Turkish Power System: From conventional past to smart future","authors":"S. Guner, A. Ozdemir","doi":"10.1109/ISGTEurope.2011.6162724","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162724","url":null,"abstract":"Smart grids are becoming an important issue in the future power system network configurations. Main goal of smart grid is to intelligently integrate the behavior and actions of all users connected to it. There are many researches dealing with the implementation of a self-healed, reliable, sustainable, economic, safe and highly efficient power system network. Many new challenges try to solve the problems that face to transform the conventional grid into a smart grid because of renewable energy integration, communication errors and smart meter disturbance. One of the basic priorities of Turkish Power System is the supply security. Therefore, competitive deregulated market has been restructuring to improve supply security. The generation and distribution parts of Turkish Power System have already been partly privatized. At this initial phase of future smart grid, Distributed generations are being extended as well as installation of remote control and monitoring facilities. In addition, regulatory issues regarding the smart grid are being organized. This paper is focused on the evolution of conventional Turkish Electric Power System, as to constitute a smart grid.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"68 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120810450","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162768
D. Aloini, E. Crisostomi, Marco Raugi, R. Rizzo
This paper proposes a novel approach where the Energy Management System of a Virtual Power Plant decides the optimal power scheduling not on the basis of some predefined policies, but upon the solution of an optimisation problem. The scheduling decision is dynamic as it depends on variable factors, not fully predictable, such as renewable sources availability, electrical energy price, controllable and uncontrollable loads demand and possibility of storing or releasing stored energy. The optimal solution is computed according to a novel cost function that explicitly takes into account only direct costs. Theoretical findings and expectations are proved through simulations of a realistic scenario.
{"title":"Optimal power scheduling in a Virtual Power Plant","authors":"D. Aloini, E. Crisostomi, Marco Raugi, R. Rizzo","doi":"10.1109/ISGTEurope.2011.6162768","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162768","url":null,"abstract":"This paper proposes a novel approach where the Energy Management System of a Virtual Power Plant decides the optimal power scheduling not on the basis of some predefined policies, but upon the solution of an optimisation problem. The scheduling decision is dynamic as it depends on variable factors, not fully predictable, such as renewable sources availability, electrical energy price, controllable and uncontrollable loads demand and possibility of storing or releasing stored energy. The optimal solution is computed according to a novel cost function that explicitly takes into account only direct costs. Theoretical findings and expectations are proved through simulations of a realistic scenario.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132559729","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162644
Xiongwei Liu, I. Chilvers, M. Mokhtar, A. Bedford, Keir Stitt, J. Yazdani
Microgeneration and/or on-site generation from renewable sources, which are generally intermittent, have been pushing the way forward to introduce intelligence to Building Management System (BMS), so as to integrate local energy generation and storage with the public grid and form an intelligent microgrid. This paper aims to develop a property microgrid for the Samuel Lindow Building of the University of Central Lancashire at its Westlakes Campus, West Cumbria, UK. This system covers energy (both electricity and heat) generation from on-site renewable sources and gas, energy storage and energy demand management. Through optimum operation control of the microgrid whilst minimising electrical power transfer from the main grid, this system will enable the property to maximise the benefit of the renewable sources, to improve energy efficiency, to reduce the energy bill, to minimise the impact of the renewable generation on the main grid, and to reduce greenhouse gas emission.
{"title":"Microgrid development for properties","authors":"Xiongwei Liu, I. Chilvers, M. Mokhtar, A. Bedford, Keir Stitt, J. Yazdani","doi":"10.1109/ISGTEurope.2011.6162644","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162644","url":null,"abstract":"Microgeneration and/or on-site generation from renewable sources, which are generally intermittent, have been pushing the way forward to introduce intelligence to Building Management System (BMS), so as to integrate local energy generation and storage with the public grid and form an intelligent microgrid. This paper aims to develop a property microgrid for the Samuel Lindow Building of the University of Central Lancashire at its Westlakes Campus, West Cumbria, UK. This system covers energy (both electricity and heat) generation from on-site renewable sources and gas, energy storage and energy demand management. Through optimum operation control of the microgrid whilst minimising electrical power transfer from the main grid, this system will enable the property to maximise the benefit of the renewable sources, to improve energy efficiency, to reduce the energy bill, to minimise the impact of the renewable generation on the main grid, and to reduce greenhouse gas emission.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132645026","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162760
S. Acevedo, M. Molinas
Stability analysis of power systems dominated by power electronics devices is a challenge for the future. This paper focuses in the analysis based on impedance representation of a three phases inverter operating as voltage source. Therefore, two small signal input impedance modeling methods are described, the first is the linearized state space model methodology and the second is based on the assumption of no energy storage at the AC and DC side of the inverter. For both methods a comparative evaluation with the impedance obtained was realized by the application of a voltage perturbation to the DC side. The obtained results show that the proposed method can be employed in the studies of stability of power electronic systems.
{"title":"Modeling of switching power interfaces for smart-grid stability studies","authors":"S. Acevedo, M. Molinas","doi":"10.1109/ISGTEurope.2011.6162760","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162760","url":null,"abstract":"Stability analysis of power systems dominated by power electronics devices is a challenge for the future. This paper focuses in the analysis based on impedance representation of a three phases inverter operating as voltage source. Therefore, two small signal input impedance modeling methods are described, the first is the linearized state space model methodology and the second is based on the assumption of no energy storage at the AC and DC side of the inverter. For both methods a comparative evaluation with the impedance obtained was realized by the application of a voltage perturbation to the DC side. The obtained results show that the proposed method can be employed in the studies of stability of power electronic systems.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132324605","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162733
Qiuwei Wu, A. Nielsen, J. Østergaard, S. Cha, Yi Ding
The impact study of electric vehicle (EV) integration on medium voltage (MV) grids has been done in order to investigate the effects of different EV charging scenarios on MV grids from the perspectives of power component loading and voltage profiles. The intent of the impact study of EV integration is to identify the bottlenecks of power systems for the EV grid integration, assess different EV charging scenarios and quantify the benefits from smart charging from the power component loading and voltage profile perspectives. Three charging scenarios, dumb charging, timed charging and fleet operator based charging, have been considered in the impact study. The vehicle driving pattern data in Denmark have been used to determine the EV charging demands of different charging scenarios. A MV grid from the Bornholm power system has been used to implement the case studies.
{"title":"Impact study of electric vehicle (EV) integration on medium voltage (MV) grids","authors":"Qiuwei Wu, A. Nielsen, J. Østergaard, S. Cha, Yi Ding","doi":"10.1109/ISGTEurope.2011.6162733","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162733","url":null,"abstract":"The impact study of electric vehicle (EV) integration on medium voltage (MV) grids has been done in order to investigate the effects of different EV charging scenarios on MV grids from the perspectives of power component loading and voltage profiles. The intent of the impact study of EV integration is to identify the bottlenecks of power systems for the EV grid integration, assess different EV charging scenarios and quantify the benefits from smart charging from the power component loading and voltage profile perspectives. Three charging scenarios, dumb charging, timed charging and fleet operator based charging, have been considered in the impact study. The vehicle driving pattern data in Denmark have been used to determine the EV charging demands of different charging scenarios. A MV grid from the Bornholm power system has been used to implement the case studies.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131103727","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 : 2011-12-01DOI: 10.1109/ISGTEurope.2011.6162623
J. Kohlmann, M. Vossen, J. Knigge, C. Kobus, J. Slootweg
The paper describes the objectives and design of a demand-side management system for a smart grid lighthouse project in Breda, the Netherlands. In order to stimulate the consumer to save energy and shift the use of appliances in time, incentives have been designed. Based upon these incentives, an in-house energy management system can schedule smart appliances in optimal time-slots by means of specifically designed algorithms. The stimulation of behavioural change and the offered incentives are expected to result in significant financial savings for the consumers.
{"title":"Integrated Design of a demand-side management system","authors":"J. Kohlmann, M. Vossen, J. Knigge, C. Kobus, J. Slootweg","doi":"10.1109/ISGTEurope.2011.6162623","DOIUrl":"https://doi.org/10.1109/ISGTEurope.2011.6162623","url":null,"abstract":"The paper describes the objectives and design of a demand-side management system for a smart grid lighthouse project in Breda, the Netherlands. In order to stimulate the consumer to save energy and shift the use of appliances in time, incentives have been designed. Based upon these incentives, an in-house energy management system can schedule smart appliances in optimal time-slots by means of specifically designed algorithms. The stimulation of behavioural change and the offered incentives are expected to result in significant financial savings for the consumers.","PeriodicalId":419250,"journal":{"name":"2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131065524","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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