电解电容与薄膜电容的对比分析  

Comparative analysis of electrolytic capacitor and thin film capacitor

作　　者：潘启军[1] 黄垂兵 邓晨[1] 孟庆云[1] 薛高飞[1] 

机构地区：[1]海军工程大学舰船综合电力技术国防科技重点实验室,武汉430033

出　　处：《海军工程大学学报》2014年第2期5-9,共5页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(51077129);国家重点基础研究发展计划资助项目(2013CB035601)

摘　　要：在综合现有文献基础上,对电解电容与薄膜电容的优缺点进行了对比分析。首先,分析了影响铝电解电容寿命的主要因素,给出了对电解电容寿命进行估算的方法。然后,针对交-直-交电力电子变换器,在综合考虑电容容值、电流有效值、过电压、负载功率等多因素的情况下,对直流支撑电容进行了设计,说明了在功率变化电路中薄膜电容远优于电解电容。最后,针对两类大型电力电容器,分别采用电解电容方案与薄膜电容方案进行了对比设计。结果表明:与电解电容方案相比,薄膜电容方案不仅具有寿命长、耐压高、电流承受能力强、能承受反压、无酸污染并且可长时间存贮等诸多优点,而且在体积上也明显小于电解电容方案。Based on the present literature, the merits and short comings of the electrolytic capacitor and thin film capacitor are analyzed. Firstly, the main factors affecting the electrolytic capacitor life- time is analyzed and the method of estimating its lifetime is presented. Secondly, in view of the various factors such as capacitance, current root mean square （RMS） value, over-voltage and load power, the DC capacitor in the AC-DC-AC power electronic convertor is designed because the thin film capacitor has an advantage over the electrolytic capacitor. Finally, a comparative design of the two kinds of large-capacity power capacitors is made by using electrolytic capacitor and thin film capacitor respectively. The results show that compared with the electrolytic capacitor, the thin film capacitor has long life time, high voltage resistibility, strong current capability, effective resistance to the reverse voltage, acid-free pollution and can be stored for a long time. Moreover, its volume is smaller.

关 键 词：电解电容 薄膜电容 寿命 对比分析 

分 类 号：TM53[电气工程—电器]