State and state of charge estimation for a latent heat storage

• Verfasst von: Barz, Tilman [VerfasserIn]
• Verfasst von: Sommer, Andreas [VerfasserIn]
• Verfasst von: Walter, Sebastian F. [VerfasserIn]
• Verfasst von: Bock, Hans Georg [VerfasserIn]
• Verfasst von: Körkel, Stefan [VerfasserIn]
• Titel: State and state of charge estimation for a latent heat storage
• Verf.angabe: Tilman Barz, Dominik Seliger, Klemens Marx, Andreas Sommer, Sebastian F. Walter, Hans Georg Bock, Stefan Körkel
• Umfang: 16 S.
• Fussnoten: Available online 22 December 2017 ; Gesehen am 29.01.2018
• Titel Quelle: Enthalten in: Control engineering practice
• Jahr Quelle: 2018
• Band/Heft Quelle: 72(2018), S. 151-166
• ISSN Quelle: 1873-6939
• DOI: doi:10.1016/j.conengprac.2017.11.006
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1567759157

Abstract

A nonlinear state observer is designed for a thermal energy storage with solid/liquid phase change material (PCM). Using a physical 2D dynamic model, the observer reconstructs transient spatial temperature fields inside the storage and estimates the stored energy and the state of charge. The observer has been successfully tested with a lab-scale latent heat storage with a single pass tube bundle and the phase change material located in a shell around each tube. It turns out that the observer robustly tracks the real process data with as few as four internal PCM temperature sensors.