Thermoelectric-Generator-Based DC–DC Conversion Networks for Automotive Applications
Source: Journal of Electronic Materials, Volume 40, Number 5, May 2011 , pp. 1136-1143(8)
Abstract:Maximizing electrical energy generation through waste heat recovery is one of the modern research questions within automotive applications of thermoelectric (TE) technologies. This paper proposes a novel concept of distributed multisection multilevel DC–DC conversion networks based on thermoelectric generators (TEGs) for automotive applications. The concept incorporates a bottom-up design approach to collect, convert, and manage vehicle waste heat efficiently. Several state-of-the-art thermoelectric materials are analyzed for the purpose of power generation at each waste heat harvesting location on a vehicle. Optimal materials and TE couple configurations are suggested. Moreover, a comparison of prevailing DC–DC conversion techniques was made with respect to applications at each conversion level within the network. Furthermore, higher-level design considerations are discussed according to system specifications. Finally, a case study is performed to compare the performance of the proposed network and a traditional single-stage system. The results show that the proposed network enhances the system conversion efficiency by up to 400%.
Document Type: Research Article
Affiliations: 1: Department of Electronic Systems, School of Information and Communication Technology, The Royal Institute of Technology (KTH), Isafjordsgatan 39, Kista-Stockholm, 16440, Sweden, Email: email@example.com 2: Department of Electronic Systems, School of Information and Communication Technology, The Royal Institute of Technology (KTH), Isafjordsgatan 39, Kista-Stockholm, 16440, Sweden
Publication date: May 2011