獨立光伏系統(tǒng)中超級電容儲能充電技術(shù)的研究
易桂平，胡仁杰，劉千杰
(東南大學 電氣工程學院，江蘇 南京 210096)
摘 要： 介紹了獨立光伏系統(tǒng)中超級電容器的工作原理及其優(yōu)缺點，給出了三支路、傳輸線、串聯(lián)RC 和改進的串聯(lián)RC 四種超級電容器等效電路模型。研究了各種超級電容器充電方式，分析了超級電容器的恒壓、恒流和恒功率充電方式的效率。實驗研究表明三種充電方式各具優(yōu)點和缺點，恒功率充電可在保證充電效率的前提下，較好地控制充電時間，較適合對超級電容器充電。
關(guān)鍵詞： 超級電容器；儲能元件；充電方式
中圖分類號：TM914.4 文獻標識碼：A 文章編號：1007-3175(2014)07-0013-07
Study on Charging Technology of Supercapacitor Energy Storage in Stand-Alone Photovoltaic System
YI Gui-ping, HU Ren-jie, LIU Qian-jie
（School of Electrical Engineering, Southeast University, Nanjing 210096, China）
Abstract: Introduction was made to the working principle of supercapacitors in stand-alone photovoltaic system, as well as their advantages and disadvantages. This paper gave four kinds of supercapacitors equivalent electric circuits, such as three-branch circuit, transmission line, RC circuit in series and improved RC circuit in series and studied a variety of supercapacitors charging modes, analyzing the efficiency of supercapacitors constant voltage, constant current and constant power charging modes. Experimental research shows that the three kinds of charging modes have their own advantages and disadvantages. Under the precondition of ensuring the charging efficiency, the constant power charging mode can control charging time better, so it is more suitable for supercapacitors charging.
Key words: supercapacitor; energy storage element; charging mode
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