Jeffrey Taft - Academia.edu (original) (raw)
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Università degli Studi di Firenze (University of Florence)
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Papers by Jeffrey Taft
Simple Transactive Energy Systems have been built using ad hoc approaches to the placement and in... more Simple Transactive Energy Systems have been built using ad hoc approaches to the placement and interconnection of the transactive nodes but engineering principles or design guidelines for building such systems have been lacking. Consequently, the proliferation of transactive Distributed Energy Resources (DERs) and transactive building-to-grid services has been hampered and the development of interoperability standards has been slow. In order to realize the full potential for extracting the latent capacity and performance available in distribution systems with DER on a real time basis, transactive elements must be distributed throughout the distribution grid to take account of local conditions with sufficient granularity. We may state a new architectural thesis for future grids this way: given highly volatile and dispersed resources and physical constraints across the grid, provide a unified multi-tier coordination schema that simultaneously optimizes operation across all parts of the power delivery system, from the markets, balancing, planning, and operational levels to the transactive and prosumer levels. This paper provides an architectural framework for highly distributed Transactive Energy grids. The framework guides the engineering of transactive distribution systems, informs the necessary interoperability standards, and fills in the gap in the ability of electric distribution utilities to write the Grid Codes that define how prosumer and third party devices plug into such a grid. This architecture resolves a major hurdle to Transactive Grid deployment.
IEEE Power and Energy Magazine, 2019
By the beginning of the present decade, it had become clear that efforts to improve U.S. electric... more By the beginning of the present decade, it had become clear that efforts to improve U.S. electric power systems as well as power systems around the world were being stymied by a problem that was more or less recognized but not often articulated: the overwhelming complexity of what is generally and loosely referred to as the grid had become so great that understanding the implications of changes to the grid, or even determining what changes should be made, was significantly impeding grid modernization. Less obvious, but just as significant, changes to the grid were already occurring that increasingly diverged from the basic principles and assumptions under which the 20th century grid was developed. These changes could lead to severe consequences for grid reliability and functionality if they were not addressed. New developments are largely driven by evolving consumer expectations, the emergence of new technologies, and the change from central economies of scale to network economies. The latter is driven by increased penetration of distributed energy resources (DERs) connected at the distribution level ("the grid edge") and by ubiquitous communication connectivity. Additional drivers include deficiencies in resilience and increasing threat of cyberattack. Research and development management Social implications of technology Application specific processors Power MOSFET International trade Interface states Garnets Asia Coatings. Esophagus Hypodermic needles Substation protection Micromachining Genetics Service-oriented architecture Twitter. Virtual artifact Partitioning algorithms SONET Blind equalizers Commutators Health information management Stimulated emission Time to market Bromine compounds Optical diffraction Contract management Cartilage Hypertext systems. Reflectometry Ceramic products Silicon carbide Charge carrier density Catheterization Industrial pollution. Acoustic diffraction Electrical accidents Bistable circuits Piezoelectric devices Failure analysis Image edge detection Equations Ceramic products Lithium-ion batteries Spectroscopy. Iris Serviceoriented architecture Materials requirements planning Sea ice Thomson effect Gyroscopes Bragg gratings Aerospace safety Web services Electric vehicle charging Americium. Web TV Neutrino sources Resource description framework Metamaterials Computer graphics SGML Francium. Conductive adhesives Dielectric devices Network address translation Empirical mode decomposition Digital audio players Electrostatic levitation Skin neoplasms Cranial. Electrical safety Embedded systems Breast tumors Block codes Varactors Aluminum alloys Silicon carbide Business process management Volume relaxation Land mobile radio Emergent phenomena. Thin film transistors Mean square error methods Numerical simulation Blood pressure Radar Hybrid junctions Blanking Millennials Software algorithms Reconfigurable devices Hypertext systems Flexible structures. Explosions All-optical networks Web design Rescue robots Production planning Dysprosium Oligopoly Biological cells Australia Metamaterials Infrared image sensors Planning Hypodermic needles. Fluorine Channel spacing Pose estimation CMOSFET circuits Context modeling Industrial engineering Leg Bot (Internet) Effluents. Meteorological factors OFDM Brain injuries Spin polarized transport Photoelectricity Quantum dots Bionanotechnology Epitaxial layers Wafer bonding Quantum computing Quality control Neon Spread spectrum radar. Glass manufacturing Elbow Lifetime estimation Harmonic filters Blood platelets. Spatial augmented reality Antenna theory Internet security Approximation error Galvanizing.
Simple Transactive Energy Systems have been built using ad hoc approaches to the placement and in... more Simple Transactive Energy Systems have been built using ad hoc approaches to the placement and interconnection of the transactive nodes but engineering principles or design guidelines for building such systems have been lacking. Consequently, the proliferation of transactive Distributed Energy Resources (DERs) and transactive building-to-grid services has been hampered and the development of interoperability standards has been slow. In order to realize the full potential for extracting the latent capacity and performance available in distribution systems with DER on a real time basis, transactive elements must be distributed throughout the distribution grid to take account of local conditions with sufficient granularity. We may state a new architectural thesis for future grids this way: given highly volatile and dispersed resources and physical constraints across the grid, provide a unified multi-tier coordination schema that simultaneously optimizes operation across all parts of the power delivery system, from the markets, balancing, planning, and operational levels to the transactive and prosumer levels. This paper provides an architectural framework for highly distributed Transactive Energy grids. The framework guides the engineering of transactive distribution systems, informs the necessary interoperability standards, and fills in the gap in the ability of electric distribution utilities to write the Grid Codes that define how prosumer and third party devices plug into such a grid. This architecture resolves a major hurdle to Transactive Grid deployment.
IEEE Power and Energy Magazine, 2019
By the beginning of the present decade, it had become clear that efforts to improve U.S. electric... more By the beginning of the present decade, it had become clear that efforts to improve U.S. electric power systems as well as power systems around the world were being stymied by a problem that was more or less recognized but not often articulated: the overwhelming complexity of what is generally and loosely referred to as the grid had become so great that understanding the implications of changes to the grid, or even determining what changes should be made, was significantly impeding grid modernization. Less obvious, but just as significant, changes to the grid were already occurring that increasingly diverged from the basic principles and assumptions under which the 20th century grid was developed. These changes could lead to severe consequences for grid reliability and functionality if they were not addressed. New developments are largely driven by evolving consumer expectations, the emergence of new technologies, and the change from central economies of scale to network economies. The latter is driven by increased penetration of distributed energy resources (DERs) connected at the distribution level ("the grid edge") and by ubiquitous communication connectivity. Additional drivers include deficiencies in resilience and increasing threat of cyberattack. Research and development management Social implications of technology Application specific processors Power MOSFET International trade Interface states Garnets Asia Coatings. Esophagus Hypodermic needles Substation protection Micromachining Genetics Service-oriented architecture Twitter. Virtual artifact Partitioning algorithms SONET Blind equalizers Commutators Health information management Stimulated emission Time to market Bromine compounds Optical diffraction Contract management Cartilage Hypertext systems. Reflectometry Ceramic products Silicon carbide Charge carrier density Catheterization Industrial pollution. Acoustic diffraction Electrical accidents Bistable circuits Piezoelectric devices Failure analysis Image edge detection Equations Ceramic products Lithium-ion batteries Spectroscopy. Iris Serviceoriented architecture Materials requirements planning Sea ice Thomson effect Gyroscopes Bragg gratings Aerospace safety Web services Electric vehicle charging Americium. Web TV Neutrino sources Resource description framework Metamaterials Computer graphics SGML Francium. Conductive adhesives Dielectric devices Network address translation Empirical mode decomposition Digital audio players Electrostatic levitation Skin neoplasms Cranial. Electrical safety Embedded systems Breast tumors Block codes Varactors Aluminum alloys Silicon carbide Business process management Volume relaxation Land mobile radio Emergent phenomena. Thin film transistors Mean square error methods Numerical simulation Blood pressure Radar Hybrid junctions Blanking Millennials Software algorithms Reconfigurable devices Hypertext systems Flexible structures. Explosions All-optical networks Web design Rescue robots Production planning Dysprosium Oligopoly Biological cells Australia Metamaterials Infrared image sensors Planning Hypodermic needles. Fluorine Channel spacing Pose estimation CMOSFET circuits Context modeling Industrial engineering Leg Bot (Internet) Effluents. Meteorological factors OFDM Brain injuries Spin polarized transport Photoelectricity Quantum dots Bionanotechnology Epitaxial layers Wafer bonding Quantum computing Quality control Neon Spread spectrum radar. Glass manufacturing Elbow Lifetime estimation Harmonic filters Blood platelets. Spatial augmented reality Antenna theory Internet security Approximation error Galvanizing.