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標題: | 動態負載下的最佳化電池組合以及控制策略 Optimal Battery Configurations and Control Strategies under Dynamic Loads |
作者: | Chi-Yung Feng 馮其湧 |
指導教授: | 江介宏(Jie-Hong Roland Jiang) |
關鍵字: | 最佳化電池組合,電池組合重組,電池組合重組控制策略, optimal battery configuration,battery reconfiguration,control strategy of battery reconfiguration, |
出版年 : | 2016 |
學位: | 碩士 |
摘要: | 鋰電池在車用、能源、或電子工業上皆有廣泛的運用。然而,電池老化所產生的電池差異影響電池系統的使用,這使得大型電池系統的管理成為最近重要的研究課題。電池模組的重組是現今一個可能的解決方案,而最近的研究卻多侷限於特定的電池系統架構下,且較少探討電池產生差異下對於高功率負載的使用情形。
於此論文,我們藉由電池的放電曲線探討於不同負載下的電池連接定律。我們發現高負載以及低負載下的最佳化電池組合有著極大的差異,於是提出兩種特殊的電池組合:功率型電池組合以及能量型電池組合。前者能提供最大的功率,後者則能傳遞最大的能量。我們進一步提出在動態負載下切換於兩種特殊電池組合的控制策略。 考量未來於硬體實作的可能性,我們亦對開關型電池重組架構提出動態控制策略。這是目前最簡單且最有可能用於大電池系統管理的重組架構。電動車以及商業單位等用電資訊的模擬實驗皆展現我們所提出的控制策略有助於提升電池系統的使用效率。 Lithium-ion batteries gain widespread application in automotive, energy, and electronics industries. Management of large-scale lithium-ion battery systems become imperative and challenging especially under the presence of battery variations. Recently battery array reconfiguration has been proposed to improve energy utility with respect to a specific implementation architecture. However the feasibility issue of meeting heavy power load requirement under battery variations and shortages is rarely addressed. In this thesis, building upon a battery discharge trace model we study a general principle of battery array configuration for a given power load requirement without assuming a priori an implementation architecture. Observing that optimal configurations for heavy and light loads are completely different, we devise two configuration modes: one to maximize power delivery and the other to maximize energy delivery. We further proposed a strategy switching between the two modes depending on the power requirement from a dynamic load. We also propose a control strategy for bypassed/enabled architecture, a simplest but most practical reconfigurable architecture. Experiments on power load patterns from an electric vehicle road test and from daily electricity usage of a business unit show the unique benefits and effectiveness of our proposed methods. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49206 |
DOI: | 10.6342/NTU201602656 |
全文授權: | 有償授權 |
顯示於系所單位: | 電子工程學研究所 |
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ntu-105-1.pdf 目前未授權公開取用 | 4.09 MB | Adobe PDF |
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