NDLI: Optimal Sensor Placement Methods for Active Power Electronic Systems

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Satya, R. T. Peddada Pamela, J. Tannous Andrew, G. Alleyne James, T. Allison
Copyright Year	2017
Abstract	Accurate temperature estimation of high density active power electronic systems is vital for dynamic thermal management. Accurate and reliable estimation is especially important in regions that are close to failure, either due to high temperature or significant materials or component sensitivity. Improved estimation can support lower safety factors and enhanced system performance. An investigation of optimal temperature sensor placement methods is presented here, focusing primarily on methods utilizing information-based metrics. In addition, physics-based metrics are explored in an initial study that may have the potential to be more closely aligned with overall system utility. Studies are based on a 2 kW, single-phase, seven-level, GaN-based inverter. A lumped-parameter reduced-order thermal model, developed in previous work, is used for real-time temperature estimation. A continuous relaxation of a 2D placement domain led to a novel linear programming formulation that supports solution of finely-discretized sensor placement problems with minimal computational expense. Improved sensor placement performance metrics account for multiple loading conditions and estimation accuracy with respect to failure prevention.
Sponsorship	Design Engineering Division Computers and Information in Engineering Division
File Format	PDF
ISBN	9780791858127
DOI	10.1115/DETC2017-68253
Volume Number	Volume 2A: 43rd Design Automation Conference
Conference Proceedings	ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2017-08-06
Publisher Place	Cleveland, Ohio, USA
Access Restriction	Subscribed
Subject Keyword	Relaxation (physics) Temperature Linear programming High temperature Density Gallium nitride Physics Temperature sensors Sensor placement Electronic systems Thermal management Safety Failure
Content Type	Text
Resource Type	Article

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