摘要 :
In this paper we propose a Dynamic Modeling and Decision Systems (DyMonDS) framework for modeling, simulating and designing cyber in the changing electric energy systems. The approach is fundamentally physics-based, which helps id...
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In this paper we propose a Dynamic Modeling and Decision Systems (DyMonDS) framework for modeling, simulating and designing cyber in the changing electric energy systems. The approach is fundamentally physics-based, which helps identify the relevant multi-layered structure of their complex dynamics. The common thread throughout the paper is the idea that coupling within a complex interconnected system can be represented using energy stored in different components and the rate of energy exchange with the rest of the system. This idea supports modeling in a transformed state space which makes it possible to systematically design interactive cyber for managing dynamics of energy exchange for provable performance in the evolving multi-physics energy systems. We describe a general scalable DyMonDS simulator currently under the development by our group for demonstrating potential of newly proposed cyber.
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摘要 :
In this paper we propose a Dynamic Modeling and Decision Systems (DyMonDS) framework for modeling, simulating and designing cyber in the changing electric energy systems. The approach is fundamentally physics-based, which helps id...
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In this paper we propose a Dynamic Modeling and Decision Systems (DyMonDS) framework for modeling, simulating and designing cyber in the changing electric energy systems. The approach is fundamentally physics-based, which helps identify the relevant multi-layered structure of their complex dynamics. The common thread throughout the paper is the idea that coupling within a complex interconnected system can be represented using energy stored in different components and the rate of energy exchange with the rest of the system. This idea supports modeling in a transformed state space which makes it possible to systematically design interactive cyber for managing dynamics of energy exchange for provable performance in the evolving multi-physics energy systems. We describe a general scalable DyMonDS simulator currently under the development by our group for demonstrating potential of newly proposed cyber.
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A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sens...
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A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sensors throughout its service. The short-term live load test and plan of the long-term monitoring system is introduced in this paper. Preliminary results from Fiber Optic Sensors (FOS), traditional strain sensors and acoustic emission sensors are analyzed to assess the bridge performance.
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摘要 :
A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sens...
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A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sensors throughout its service. The short-term live load test and plan of the long-term monitoring system is introduced in this paper. Preliminary results from Fiber Optic Sensors (FOS), traditional strain sensors and acoustic emission sensors are analyzed to assess the bridge performance.
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摘要 :
A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sens...
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A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sensors throughout its service. The short-term live load test and plan of the long-term monitoring system is introduced in this paper. Preliminary results from Fiber Optic Sensors (FOS), traditional strain sensors and acoustic emission sensors are analyzed to assess the bridge performance.
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摘要 :
A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sens...
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A FRP-wrapped Balsa wood bridge deck system has been developed and installed in Louisiana. The bridge performance has been evaluated by using live load testing and its long-term performance will be monitored using fiber optic sensors throughout its service. The short-term live load test and plan of the long-term monitoring system is introduced in this paper. Preliminary results from Fiber Optic Sensors (FOS), traditional strain sensors and acoustic emission sensors are analyzed to assess the bridge performance.
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Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems,...
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Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems, we first propose a theoretically-sound modeling method which defines common microgrid component interfaces using power and rate of change of power. Using this modeling approach, we propose a multi-layered distributed control: the higher control layer participates in dynamic power management that ensures acceptable voltage, while the lower layer stabilizes frequency by regulating the dynamics to the power determined by the higher layer. Numerical and hardware tests are conducted to evaluate the effectiveness of the proposed control.
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摘要 :
Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems,...
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Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems, we first propose a theoretically-sound modeling method which defines common microgrid component interfaces using power and rate of change of power. Using this modeling approach, we propose a multi-layered distributed control: the higher control layer participates in dynamic power management that ensures acceptable voltage, while the lower layer stabilizes frequency by regulating the dynamics to the power determined by the higher layer. Numerical and hardware tests are conducted to evaluate the effectiveness of the proposed control.
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摘要 :
Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems,...
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Microgrids have been seen as a good solution to providing power to forward-deployed military forces. However, compatibility, robustness and stability of current solutions are often questionable. To overcome some of these problems, we first propose a theoretically-sound modeling method which defines common microgrid component interfaces using power and rate of change of power. Using this modeling approach, we propose a multi-layered distributed control: the higher control layer participates in dynamic power management that ensures acceptable voltage, while the lower layer stabilizes frequency by regulating the dynamics to the power determined by the higher layer. Numerical and hardware tests are conducted to evaluate the effectiveness of the proposed control.
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摘要 :
In this paper, we first show how general microgrid can be modeled as a negative feedback configuration comprising two subsystems. The first subsystem is the interconnected microgrid grid which is affected through negative feedback...
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In this paper, we first show how general microgrid can be modeled as a negative feedback configuration comprising two subsystems. The first subsystem is the interconnected microgrid grid which is affected through negative feedback by the second subsystem consisting of all single-port components. This is modeled by transforming physical state variables into energy state variables and by systematically defining input and output of system components in this transformed state space. We next draw on the fact that for this basic feedback configuration there exist several types of conditions regarding subsystem properties which ensure overall system properties. In particular, we utilize dissipativity theory to propose a subsystem nonlinear control design for heterogeneous resource components comprising microgrids so that they jointly result in a closed-loop feasible and stable dynamical system for given ranges of system disturbances.
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