EMTAT

Electrical Modeling and Thermal Analysis Toolbox
Click Here for stable release download

Introduction
The Electrical Modeling and Thermal Analysis Toolbox is a Simulink toolbox intended for use in the modeling and simulation of electrical systems and their controls. EMTAT contains generic electrical components that may be combined with a variable input iterative solver and optimization algorithm to create complex systems to meet the needs of a developer. Development of this tool was initiated on behalf of the NASA Transformative Aeronautics Concepts Program (TACP)/ Transformational Tools and Technologies (TTT) projects.

Description
This simulation toolbox has been developed to model the electrical portions of Electrified Aircraft Propulsion (EAP) systems, including self- heating of electrical systems. Dynamic models of EAP systems often include turbomachinery, an electrical power system, and a thermal management system. These portions of the propulsion system can operate on timescales covering six orders of magnitude, which poses a
challenging modeling task. Assumptions and approximations are made in an effort to capture the dynamics relevant to engine, electrical
system, and thermal system interactions, while still allowing for fast simulations. These assumptions and approximations enable the electrical component models to run at the time scale of the turbomachinery, neglecting the very high frequency electrical dynamics, while demonstrating representative behavior of the end-to-end system. Thus the models execute in an acceptable time frame for what would otherwise be an extremely stiff simulation. The resulting simulations of EAP systems are appropriate for system-level control design and analysis.

EMTAT is written in MATLAB/Simulink (The Mathworks, Inc.), is open source, and is intended for use by industry, government, and academia. All EMTAT equations were developed from public sources and all default maps and constants provided in the EMTAT software package are nonproprietary and available to the public. The software is released under the Apache V2.0 license agreement.

Getting Started
Stable releases of EMTAT are located under the releases tab. It is encouraged that a user download the most up to date version using the appropriate software download button (green button). Installation instructions are detailed in the user's guide which is included within the package (Documentation/TM-20205008125.pdf).

EMTAT encourages open collaboration and if a user wishes to become a developer the software may be forked at any time via the main page link.