Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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超級電容器改進模型及其均壓策略研究

來源:電工電氣發(fā)布時間:2016-05-27 08:27 瀏覽次數(shù):8
超級電容器改進模型及其均壓策略研究
 
何春光,陸駿
(國網(wǎng)寧波供電公司,浙江 寧波 315200)
 
    摘  要:提出了一種超級電容器改進模型,該模型由瞬時、短時、長時以及自放電4條支路組成,并考慮溫度、端電壓對超級電容器特性的影響,可準確反映沖放電過程中的非線性以及電壓自恢復(fù)特性。在單體模型的基礎(chǔ)上,基于單飛渡電容控制思路和均壓策略,設(shè)計了儲能模塊的電壓改進模型均衡電路和超級電容器組均壓控制電路。仿真結(jié)果表明,單飛渡電容法減小了串聯(lián)超級電容器之間的電壓差,提高了電壓一致性,取得了良好的均壓效果。
    關(guān)鍵詞:超級電容器;改進模型;單飛渡電容;均壓策略
中圖分類號:TM53           文獻標識碼:A        文章編號:1007-3175(2016)04-0026-05
 
Research on an Advanced Supercapacitor Model and Its Voltage Equalizing Strategy
 
HE Chun-guang, LU Jun
(State Grid Ningbo Power Supply Company, Ningbo 315200, China)
 
    Abstract: This paper presented an advanced supercapacitor model, which consisted of four subcircuits including the instantaneous one, short-time one, long-time one and the self-discharge one. The influence of the temperature and the terminal voltage on the supercapacitor operating characteristics was taken into consideration, to be able to accurately describe the nonlinear feature of charging and discharging process and the voltage recovery characteristics. On the basis of monomer model, based on the control idea and equalizing strategy of single flying capacitor, this paper designed the advanced voltage model equalizer circuit of energy storage module and the supercapacitor bank equalizing voltage control circuit. The simulation results show that the single flying capacitor decreases the voltage difference between supercapacitors in series and raises the consistency of voltage to obtain good equalizing voltage effectiveness.
   Key words: supercapacitor; advanced model; single flying capacitor; voltage equalizing strategy
 
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