The Experts below are selected from a list of 58851 Experts worldwide ranked by ideXlab platform

Johanna L. Mathieu - One of the best experts on this subject based on the ideXlab platform.

  • effects of load based frequency regulation on distribution Network operation
    IEEE Transactions on Power Systems, 2019
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper examines the operation of distribution Networks that have large aggregations of thermostatically controlled loads (TCLs) providing frequency regulation to the bulk power system. Specifically, we assess the prevalence of distribution Network Constraint violations, such as over- or under-voltages and overloading of transformers. Our goal is to determine the set of Constraints that are at increased risk of being violated when TCLs provide regulation. We compare Network operation in two cases: first, with TCLs operating freely; and second, with TCLs controlled to track a regulation signal. Using GridLAB-D, we run power flow simulations of five real distribution Networks. Our results indicate that voltage limits are at increased risk of violation when TCLs provide regulation because of increased voltage variation. Effects on transformer aging are more nuanced and depend on the method used for dispatching TCLs. Overall, we find that, for the Networks studied, the set of Constraints at risk of violation is a small subset of all Network Constraints. Therefore, Network-protecting load control algorithms may only need to consider a small set of Constraints, enhancing their computational efficiency.

  • effects of load based frequency regulation on distribution Network operation
    arXiv: Optimization and Control, 2018
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper examines the operation of distribution Networks that have large aggregations of thermostatically controlled loads (TCLs) providing secondary frequency regulation to the bulk power system. Specifically, we assess the prevalence of distribution Network Constraint violations, such as over- or under-voltages and overloading of transformers. Our goal is to determine the set of Constraints that are at increased risk of being violated when TCLs provide regulation. We compare Network operation in two cases: first with TCLs operating freely, and second with TCLs controlled to track a regulation signal. Using GridLAB-D, we run power flow simulations of five real distribution Networks. Our results indicate that voltage limits are at increased risk of violation when TCLs provide regulation because of increased voltage variation. Effects on transformer aging are more nuanced and depend on the method used for dispatching TCLs. We find that in many distribution Networks it may only be necessary to consider voltage Constraints when designing a TCL control strategy that protects the distribution Network.

  • Effects of load control for real-time energy balancing on distribution Network Constraints
    2017 IEEE Manchester PowerTech, 2017
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper studies the effects that load control for balancing services has on the physical Constraints of a distribution Network. A simulation study is conducted across a range of scenarios and prototypical distribution Networks. Network Constraint violations, such as over-voltages and blown fuses, are recorded and compared to a no-control baseline simulation. Notably, the simulation results show that no instantaneous Constraints are violated due to load control. We find that the mean aging rate of the transformers decreases in 24 of 25 simulations, though in 21 simulations a majority of transformers experience increased aging rates. Overall the results indicate that load control for balancing services is unlikely to cause emergency-level issues on a distribution Network. However, longer term impacts, such as increased aging of certain transformers, may warrant a control design that manages particular Network Constraints.

Cherry Yuen - One of the best experts on this subject based on the ideXlab platform.

  • Active management of distributed energy resources using standardized communications and modern information technologies
    IEEE Transactions on Industrial Electronics, 2009
    Co-Authors: Adrian Timbus, Mats Larsson, Cherry Yuen
    Abstract:

    Due to high penetration level in some regions of distributed generators (DGs) based on renewable energy resources, information about their power delivery capabilities is becoming essential for planning and allocating resources and reserves in power system. This paper discusses the modeling of DGs in the utility control and information technology infrastructures of power system operators. The communication standards International Electrotechnical Commission (IEC) 61400-25 and IEC 61850 and their extensions for DGs are first introduced, followed by an example of mapping wind turbine components onto a communication data model. A distribution Network comprising several distributed-generation sources is then described from the control and communication point of view. Simulation results of production cost minimization and Network Constraint management are presented at the end, illustrating the new possibilities that a system-wide approach can provide for distributed generation.

  • Integration of wind energy resources in the utility control and information technology infrastructures
    2008 IEEE International Symposium on Industrial Electronics, 2008
    Co-Authors: Adrian Timbus, Mats Larsson, Cherry Yuen
    Abstract:

    Around the world, a rapidly increasing growth of distributed energy resources (DER) based on renewable energy sources (RES) can be observed. This is due to the increase in energy demand combined with restriction in building new large scale power plants and a search for carbon-free technologies for energy production. Among the existing renewable distributed generation technologies, wind turbines (WT) shows a quick development, leading to large installations worldwide. This paper discusses the integration of distributed generators (especially wind turbines) in the utility control and information technology infrastructures of power system operators. The communication standard IEC 61850 and its extensions is first described, followed by an example of mapping wind turbine components in communication infrastructure. A distribution Network comprising several distributed generation sources is then described from the control and communication point of view. At the end, simulation results of an application of production cost minimization and Network Constraint management are presented. These to illustrate the new possibilities that a system-wide approach to the control of DERs can provide.

Stephanie C. Ross - One of the best experts on this subject based on the ideXlab platform.

  • effects of load based frequency regulation on distribution Network operation
    IEEE Transactions on Power Systems, 2019
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper examines the operation of distribution Networks that have large aggregations of thermostatically controlled loads (TCLs) providing frequency regulation to the bulk power system. Specifically, we assess the prevalence of distribution Network Constraint violations, such as over- or under-voltages and overloading of transformers. Our goal is to determine the set of Constraints that are at increased risk of being violated when TCLs provide regulation. We compare Network operation in two cases: first, with TCLs operating freely; and second, with TCLs controlled to track a regulation signal. Using GridLAB-D, we run power flow simulations of five real distribution Networks. Our results indicate that voltage limits are at increased risk of violation when TCLs provide regulation because of increased voltage variation. Effects on transformer aging are more nuanced and depend on the method used for dispatching TCLs. Overall, we find that, for the Networks studied, the set of Constraints at risk of violation is a small subset of all Network Constraints. Therefore, Network-protecting load control algorithms may only need to consider a small set of Constraints, enhancing their computational efficiency.

  • effects of load based frequency regulation on distribution Network operation
    arXiv: Optimization and Control, 2018
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper examines the operation of distribution Networks that have large aggregations of thermostatically controlled loads (TCLs) providing secondary frequency regulation to the bulk power system. Specifically, we assess the prevalence of distribution Network Constraint violations, such as over- or under-voltages and overloading of transformers. Our goal is to determine the set of Constraints that are at increased risk of being violated when TCLs provide regulation. We compare Network operation in two cases: first with TCLs operating freely, and second with TCLs controlled to track a regulation signal. Using GridLAB-D, we run power flow simulations of five real distribution Networks. Our results indicate that voltage limits are at increased risk of violation when TCLs provide regulation because of increased voltage variation. Effects on transformer aging are more nuanced and depend on the method used for dispatching TCLs. We find that in many distribution Networks it may only be necessary to consider voltage Constraints when designing a TCL control strategy that protects the distribution Network.

  • Effects of load control for real-time energy balancing on distribution Network Constraints
    2017 IEEE Manchester PowerTech, 2017
    Co-Authors: Stephanie C. Ross, Gabrielle Vuylsteke, Johanna L. Mathieu
    Abstract:

    This paper studies the effects that load control for balancing services has on the physical Constraints of a distribution Network. A simulation study is conducted across a range of scenarios and prototypical distribution Networks. Network Constraint violations, such as over-voltages and blown fuses, are recorded and compared to a no-control baseline simulation. Notably, the simulation results show that no instantaneous Constraints are violated due to load control. We find that the mean aging rate of the transformers decreases in 24 of 25 simulations, though in 21 simulations a majority of transformers experience increased aging rates. Overall the results indicate that load control for balancing services is unlikely to cause emergency-level issues on a distribution Network. However, longer term impacts, such as increased aging of certain transformers, may warrant a control design that manages particular Network Constraints.

Goran Strbac - One of the best experts on this subject based on the ideXlab platform.

  • ANALYSIS OF CUSTOMERS' PERFORMANCE IN INDUSTRIAL & COMMERCIAL DEMAND SIDE RESPONSE TRIALS
    2015
    Co-Authors: T Ustinova, M Woolf, J. E. Ortega Calderon, Mark Bilton, H O'brien, Simon H. Tindemans, Predrag Djapic, Goran Strbac
    Abstract:

    Modern distribution Networks face the challenges of growing demand and ageing assets. Demand Side Response (DSR) provided by Industrial and Commercial (I&C) customers is viewed as a means to help reduce risk of substations and feeders overloading and thus to defer Network reinforcement. However, real world experience regarding the use of I&C DSR in distribution Networks is currently limited, and experimental data from trials and case studies is sparse. The recently completed Low Carbon London project included I&C DSR trials aimed at understanding the potential for I&C DSR for distribution Network Constraint management. This paper presents the data obtained in the course of these trials and discusses in detail the process of data collection, selection, baseline construction, preparation for analysis and subsequent development of probabilistic response models. Additionally, a potential issue – the presence of a payback effect in customers responding with HVAC units – is observed and discussed.

  • analysis of customers performance in industrial commercial demand side response trials
    23rd International Conference on Electricity Distribution (CIRED 2015), 2015
    Co-Authors: T Ustinova, M Woolf, Mark Bilton, Simon H. Tindemans, Predrag Djapic, J Ortega E Calderon, H Obrien, Goran Strbac
    Abstract:

    Modern distribution Networks face the challenges of growing demand and ageing assets. Demand Side Response (DSR) provided by Industrial and Commercial (I&C) customers is viewed as a means to help reduce risk of substations and feeders overloading and thus to defer Network reinforcement. However, real world experience regarding the use of I&C DSR in distribution Networks is currently limited, and experimental data from trials and case studies is sparse. The recently completed Low Carbon London project included I&C DSR trials aimed at understanding the potential for I&C DSR for distribution Network Constraint management. This paper presents the data obtained in the course of these trials and discusses in detail the process of data collection, selection, baseline construction, preparation for analysis and subsequent development of probabilistic response models. Additionally, a potential issue – the presence of a payback effect in customers responding with HVAC units – is observed and discussed.

Adrian Timbus - One of the best experts on this subject based on the ideXlab platform.

  • Active management of distributed energy resources using standardized communications and modern information technologies
    IEEE Transactions on Industrial Electronics, 2009
    Co-Authors: Adrian Timbus, Mats Larsson, Cherry Yuen
    Abstract:

    Due to high penetration level in some regions of distributed generators (DGs) based on renewable energy resources, information about their power delivery capabilities is becoming essential for planning and allocating resources and reserves in power system. This paper discusses the modeling of DGs in the utility control and information technology infrastructures of power system operators. The communication standards International Electrotechnical Commission (IEC) 61400-25 and IEC 61850 and their extensions for DGs are first introduced, followed by an example of mapping wind turbine components onto a communication data model. A distribution Network comprising several distributed-generation sources is then described from the control and communication point of view. Simulation results of production cost minimization and Network Constraint management are presented at the end, illustrating the new possibilities that a system-wide approach can provide for distributed generation.

  • Integration of wind energy resources in the utility control and information technology infrastructures
    2008 IEEE International Symposium on Industrial Electronics, 2008
    Co-Authors: Adrian Timbus, Mats Larsson, Cherry Yuen
    Abstract:

    Around the world, a rapidly increasing growth of distributed energy resources (DER) based on renewable energy sources (RES) can be observed. This is due to the increase in energy demand combined with restriction in building new large scale power plants and a search for carbon-free technologies for energy production. Among the existing renewable distributed generation technologies, wind turbines (WT) shows a quick development, leading to large installations worldwide. This paper discusses the integration of distributed generators (especially wind turbines) in the utility control and information technology infrastructures of power system operators. The communication standard IEC 61850 and its extensions is first described, followed by an example of mapping wind turbine components in communication infrastructure. A distribution Network comprising several distributed generation sources is then described from the control and communication point of view. At the end, simulation results of an application of production cost minimization and Network Constraint management are presented. These to illustrate the new possibilities that a system-wide approach to the control of DERs can provide.