James Cale
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View article: Advances in the Co-Simulation of Detailed Electrical and Whole-Building Energy Performance
Advances in the Co-Simulation of Detailed Electrical and Whole-Building Energy Performance Open
This article describes recent co-simulation advances for the simultaneous modeling of detailed building electrical distribution systems and whole-building energy performance. The co-simulation architecture combines the EnergyPlus® engine f…
View article: A Modeling Toolkit for Comparing AC and DC Electrical Distribution Efficiency in Buildings
A Modeling Toolkit for Comparing AC and DC Electrical Distribution Efficiency in Buildings Open
Recently, there has been considerable research interest in the potential for DC distribution systems in buildings instead of the traditional AC distribution systems. Due to the need for performing power conversions between DC and AC electr…
View article: Rotor Position Synchronization in Central-Converter Multi-Motor Electric Actuation Systems
Rotor Position Synchronization in Central-Converter Multi-Motor Electric Actuation Systems Open
The aerospace industry is increasingly transitioning from hydraulic and pneumatic drives to power-electronic based drive systems for reduced weight and maintenance. Electromechanical thrust reverse actuation systems (EM-TRAS) are currently…
View article: Characterization Procedure for Unsymmetrical Single-Phase Capacitor-Start Induction Machines
Characterization Procedure for Unsymmetrical Single-Phase Capacitor-Start Induction Machines Open
This paper describes an experimental and numerical optimization procedure for off-line extraction of parameters for unsymmetrical, single-phase induction machines with capacitor-start operation. In addition to permitting asymmetry between …
View article: BEEAM (Building Electrical Efficiency Analysis Model) [SWR-20-107]
BEEAM (Building Electrical Efficiency Analysis Model) [SWR-20-107] Open
Modern high-performance buildings exhibit an increasing number of building loads that use direct current (DC) electricity internally, rather than alternating current (AC), due to the advent of low-cost computing and advanced power electron…
View article: Comparison of Load Models for Estimating Electrical Efficiency in DC Microgrids
Comparison of Load Models for Estimating Electrical Efficiency in DC Microgrids Open
This paper compares several electrical load models for estimating the efficiency of DC vs. AC distribution in microgrids. Candidate models include energy balance, harmonic power flow, and time-domain modeling. Model results are compared wi…
View article: U.S. SOCOM Grand Challenge #3: NREL Technical Roadmap for a Man-Portable Power Supply System for TALOS
U.S. SOCOM Grand Challenge #3: NREL Technical Roadmap for a Man-Portable Power Supply System for TALOS Open
The purpose of this report is to propose a technical roadmap for power supply technology to power the Tactical Assault Light Operator Suit (TALOS), an armored, powered exoskeleton currently in development for U.S. Special Operations Comman…
View article: IEEE Power and Energy Technology Systems Journal publication information
IEEE Power and Energy Technology Systems Journal publication information Open