Electrical Accumulator Unit for the Energy Optimized Aircraft

Wells, Jason; Amrhein, Marco; Walters, Eric; Iden, Steve; Page, Austin; Lamm, Peter; Matasso, Anthony F.

doi:10.4271/2008-01-2927

Cited by 26 publications

(5 citation statements)

References 4 publications

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“…The controller for the transactional converter provides a power reference from the voltage measurements to both bidirectional DC-DC converters. The DC-DC converters are based on PCKA's electrical accumulator unit [42]. These are hysteresis controlled interleaved boost converters, modeled by the approximation of Vin/L (Max diL/dt) and Vout -Vin/L (Min diL/dt).…”

Section: A Simulation Modelmentioning

confidence: 99%

Evaluation of an Autonomous Control Scheme for Interconnected DC Microgrids Using a Power Hardware-in-the-Loop Platform

Gonzalez-Candelario,

Darbali-Zamora,

Aponte-Bezares

et al. 2023

IEEE Access

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DC microgrids (DCMGs), typically envisioned with high bandwidth communications, may well expand their application range by considering additional autonomous control strategies, especially to increase resiliency in contingency situation. These strategies are based on the droop control methods, enabling voltage regulation and proportional load sharing based only on local measurements. Control challenges arise when coordinating the output of multiple DCMGs, each composed of several distributed energy resources through bus-to-bus transactional converters. This paper proposes an autonomous control strategy for transactional converters when multiple DCMGs are connected through a common bus. This control strategy seeks to match the external bus voltage with the internal bus voltage, balancing power. Three case scenarios are considered: standalone operation of each DCMG, excess generation on one DCMG, and generation deficit in one DCMG. Results using Sandia National Laboratories' Secure Scalable Microgrid Simulink library, and models developed in MATLAB are compared. These results demonstrated that the proposed control strategy supported the advantage of seamless operation with and without local generation-load mismatches and expanded the range of autonomous operation between DCMGs.

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Section: A Simulation Modelmentioning

confidence: 99%

Evaluation of an Autonomous Control Scheme for Interconnected DC Microgrids Using a Power Hardware-in-the-Loop Platform

Gonzalez-Candelario,

Darbali-Zamora,

Aponte-Bezares

et al. 2023

IEEE Access

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“…Examples of transient power assist paradigms include the Electrical Accumulator Unit (EAU) [8] wherein a controlled energy storage device is used to source peak power above the aircraft generation capability and sink regenerative power to maintain power quality. Other examples include the ability to rapidly reduce or shed noncritical loads to maintain transient power quality.…”

Section: Energy Optimized Aircraftmentioning

confidence: 99%

INVENT Modeling, Simulation, Analysis and Optimization

Walters

Iden

Afb

et al. 2010

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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“…It is believed, however, that vehicle-level analysis of subsystem interactions could result in significant performance gains across the aircraft, potentially improving the overall effectiveness of future platforms. The development of a vehicle level tip-to-tail (T2T) modeling and simulation tool would allow these performance gains to be quantified in a cost effective manner [1,2].…”

Section: Introductionmentioning

confidence: 99%

Modeling Techniques for a Computational Efficient Dynamic Turbofan Engine Model

Roberts

Eastbourn

2014

International Journal of Aerospace Engineering

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A transient two-stream engine model has been developed. Individual component models developed exclusively in MATLAB/Simulink including the fan, high pressure compressor, combustor, high pressure turbine, low pressure turbine, plenum volumes, and exit nozzle have been combined to investigate the behavior of a turbofan two-stream engine. Special attention has been paid to the development of transient capabilities throughout the model, increasing physics model, eliminating algebraic constraints, and reducing simulation time through enabling the use of advanced numerical solvers. The lessening of computation time is paramount for conducting future aircraft system-level design trade studies and optimization. The new engine model is simulated for a fuel perturbation and a specified mission while tracking critical parameters. These results, as well as the simulation times, are presented. The new approach significantly reduces the simulation time.

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Electrical Accumulator Unit for the Energy Optimized Aircraft

Cited by 26 publications

References 4 publications

Evaluation of an Autonomous Control Scheme for Interconnected DC Microgrids Using a Power Hardware-in-the-Loop Platform

Evaluation of an Autonomous Control Scheme for Interconnected DC Microgrids Using a Power Hardware-in-the-Loop Platform

INVENT Modeling, Simulation, Analysis and Optimization

Modeling Techniques for a Computational Efficient Dynamic Turbofan Engine Model

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