快速電化學法估算電動車之電池組狀態

Abstract

於本論文中，我們引用單電極粒子模型的概念，並使用原電化學控制方程之簡化數學解，以及搭配MATLAB程式軟體之撰寫，成功地開發一套基於電化學方法之計算程式-｢〖HAIDS〗^(×4)｣，使得本論文成為首篇實現以電化學法搭配常見的軟硬體設備，來模擬評估大規模串並聯電池組系統之狀態。對於單顆電池之一次充、放電而言，其運算耗時少於0.03秒，比起簡化前快至千倍。此外，模擬評估大規模串、並聯電池組之工作行為與狀態，其運算費時更控制於45秒內(Intel i7 2600K(Q1'2011))，即能模擬真實時間一小時的充、放電行為。再由此延伸，試著將此程式應用分析於純電動車在一般道路駕駛情況下之電池組狀態，藉由電化學法的計算結果來了解其電池組之工作情形。除此之外，我們能在耗費25小時左右之時間，估算出純電動車行駛5萬公里後，其電池組之剩餘使用壽命，進而提供消費者與車廠一簡單成本價值觀，使其做出更適當的決策。

In this thesis, we refer to the concept of single particle model and use the simplified mathematical solutions with the original electrochemical governing equations. Next, using MATLAB software, we successfully develop a program named ”〖HAIDS〗^(×4)”based on electrochemical method. This paper is the first use of electrochemical method with common software and hardware equipment, to simulate the state of large-scale battery pack system. For a single battery charge and discharge, the operation time is less than 0.03 seconds. It’s a thousand times faster than full order model. In addition, simulation of a large-scale battery group, the calculation time is controlled in 45 seconds with the actual one hour of working behavior. As an extension, try to apply this electrochemical calculation program to analyze the state of battery pack of pure electric vehicle in general road driving conditions. This thesis presents the calculation results by electrochemistry to understand the working situation of the battery pack. Furthermore, we can estimate the remaining useful life of battery pack of pure electric vehicle after traveling 50 thousand kilometers with about 25-hour simulation time. It will provide consumers and manufacturers a simple cost value, allowing them to make more appropriate decisions.