电测与仪表2018，Vol.55Issue(4)：130-136,7.
一种带非电解电容的电动汽车充电电源的建模和设计方法
A modeling and design method for electrical vehicle charging power with non-electrolytic capacitor
周辛南 1刘卓然 2郑守明 3孙志杰1
作者信息
- 1. 国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司),北京100045
- 2. 中国科学院大学,北京100049
- 3. 内蒙古东部电力有限公司呼伦贝尔供电公司,内蒙古呼伦贝尔021001
- 折叠
摘要
Abstract
The battery lifetime used in EV is usually above 50 000 h,while the lifetime of charging power used in traditional EV limited by electrolytic capacitor is only up to 8 000 h.In order to lengthen the lifetime of electrical vehicle charging power,there is an urgent need to replace the DC-link electrolytic capacitors in electrical vehicle charging power supply by non-electrolytic capacitors.This paper proposes a new method to model ACM Boost PFC circuit including main circuit and control system,and the control block diagram of overall circuit is obtained.The close-loop transfer function of output voltage variation with respect to input voltage perturbation is obtained,and then,the attenuation coefficient for 100 Hz twice line frequency ripple voltage is calculated.It is proved that the capacitance value of DC-link can be significantly lower than that of traditional experience value.The electrolytic capacitor with short-lived and large-capacitance is replaced by thin-film capacitor with long-life and small-capacitance.Finally,the modeling method and the non-electrolytic capacitance of the power supply are verified by simulation and experimental prototype.关键词
非电解电容电动汽车充电电源/boost功率因数校正电路/平均电流模式控制方法Key words
power supply with non-electrolytic capacitor/boost PFC/ACM control method分类
信息技术与安全科学引用本文复制引用
周辛南,刘卓然,郑守明,孙志杰..一种带非电解电容的电动汽车充电电源的建模和设计方法[J].电测与仪表,2018,55(4):130-136,7.
