基于超级电容器储能的配电自动化终端直流电源设计及应用
发布时间：2019-06-29 13:10
【摘要】：为解决现有配电自动化终端电源存在使用寿命短及维护困难的问题,提出了一种基于超级电容器(SC)的智能直流不间断电源方案。采用升压变换器降低超级电容器的工作电压,从而提高电容器储能的利用率,延长失电情况下电源的待机工作时间;根据超级电容器最小工作电压与剩余能量的关系,确定了超级电容器最小有效工作电压;根据变换器的期望输出功率、失电待机时间及超级电容器的最小工作电压,确定了超级电容器容量;通过对升压变换器最大输出纹波电压进行分析,对其电感及输出滤波电容的进行了优化设计。实验结果验证了所提方案的可行性。
[Abstract]:In order to solve the problems of short service life and difficult maintenance of the existing distribution automation terminal power supply, an intelligent DC uninterruptible power supply scheme based on supercapacitor (SC) is proposed. The boost converter is used to reduce the working voltage of the supercapacitor, so as to improve the utilization rate of the capacitor energy storage and prolong the standby working time of the power supply under the condition of power loss. According to the relationship between the minimum working voltage of the supercapacitor and the remaining energy, the minimum effective working voltage of the supercapacitor is determined. According to the expected output power of the converter, the standby time of power loss and the minimum operating voltage of the supercapacitor, the capacity of the supercapacitor is determined, and the inductance and output filter capacitance of the boost converter are optimized by analyzing the maximum output ripple voltage of the boost converter. The experimental results verify the feasibility of the proposed scheme.
【作者单位】： 西安科技大学电气与控制工程学院;陕西电力科学研究院;
【基金】：国家自然科学基金资助项目(50977077,51277149)~~
【分类号】：TM53;TM76
[Abstract]:In order to solve the problems of short service life and difficult maintenance of the existing distribution automation terminal power supply, an intelligent DC uninterruptible power supply scheme based on supercapacitor (SC) is proposed. The boost converter is used to reduce the working voltage of the supercapacitor, so as to improve the utilization rate of the capacitor energy storage and prolong the standby working time of the power supply under the condition of power loss. According to the relationship between the minimum working voltage of the supercapacitor and the remaining energy, the minimum effective working voltage of the supercapacitor is determined. According to the expected output power of the converter, the standby time of power loss and the minimum operating voltage of the supercapacitor, the capacity of the supercapacitor is determined, and the inductance and output filter capacitance of the boost converter are optimized by analyzing the maximum output ripple voltage of the boost converter. The experimental results verify the feasibility of the proposed scheme.
【作者单位】： 西安科技大学电气与控制工程学院;陕西电力科学研究院;
【基金】：国家自然科学基金资助项目(50977077,51277149)~~
【分类号】：TM53;TM76
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