[[alternative]]Optimal Strategy Analysis and Experimental Research Results of Lead-Acid Batteries Fast Charger Based on Phase Controlled Current Method

碩士工業教育與技術學系[[abstract]]本文之研究目的是應用截相式之快速充電方式對鉛酸電池實施快速充電。應用PC-Based 做為量測與監測暨控制之系統，透過監控儀器設備，利用Labview軟體與NI之AD/DA介面做人機介面與監控系統，建立一套可程式化自動快速充電系統，進而做快速充電最適化策略的研究。研究方法係以截相式充電方式將交流電源經整流後取其正弦波某導角度之脈衝波形，以初始大電流、在固定120Hz頻率下，將此特殊定電流脈衝調變之充電輸入波形對鉛酸電池實施快速充電。經由實驗設計，再配合變異數分析及累積法分析作最適化處理，以尋求最適化的充電電流曲線。並在實驗中加以印證，於10~15分鐘時間執行快速充電，控制電池溫升於45℃範圍，實驗結果顯示電池電容量SOC（State of Charge）可由20%回充至70~80%SOC，而充放電效率可高達90%以上，確實可達到快速充電之實用目的。研究成果將可使此種特殊快速充電法能實際應用於電動車或回充電能系統裝置等需求之快速充電器上，以至大型快速充電站上之可行性。abe The objective of this paper is to apply phase controlled current method to Lead-Acid battery fast charger. The fast-charging current, voltage, time, state of charge and temperature are controlled via PC-based automated control and measurement system. The man-machine interface is developed by Labview software and the real time interfacing is controlled through AD/DA card. This study is intended to set up a programmed automatic fast-charging controlling and monitoring system. Based on this experiment set up, researchers can therefore carry various kinds of experiments on fast-charging studies. Research study here is intended to provide readers with first-hand insight into the fast charging methodology and characterization by using A.C. power source into conductive angle input waveform pulse (120 Hz) . Initial high current associated with well-controlled current input shape was applied to Lead-Acid batteries for fast charge concern. It is proved to reach the goal of fast charging when effective charging controlled input shaping techniques was considered. Through the experimental designs, researcher hopes to find the well-controlled current input shape by combining strategy issue（ANOVA）and Accumulation Analysis method for the optimal. To sum up, experiment results illustrate that a short period, about 10 to 15 minutes can achieve fast charging while temperature rise was within the controlled range of 45℃. The capacity of battery will reach 70% to 80% State of Charge (SOC) from initial 20% SOC. Besides, the efficiency of charge-discharge can be up to 90% or more. Experiment result is examined to meet the need of the practical implementation of fast charging. The findings of this experiment enable us to put this special kind of fast charging technique into practice and also implement them on Electric Vehicle’s（EV）fast battery charger, or fast EV charging stations and any other storage typed energy equipments