超级电容器能量效率随工作电压变化的函数分析
Energy efficiency analysis as a function of the working voltages in supercapacitors
AI总结:
本文理论与实验分析了超级电容器能量效率随工作电压的变化,通过不同静止时间的充放电循环测试,绘制效率曲线以确定优化能量效率的理想工作电压。
摘要:
超级电容器作为储能元件的应用日益广泛。与电池不同,其荷电状态在正常工作时对其电压有显著影响,使其能够在零到最大电压之间运行。本文提出了一种根据工作电压对这些器件能量效率的理论与实际分析。为此,对几个超级电容器进行了充放电循环,直到电流和电压的测量值稳定。此时计算了它们的能量效率。这些充放电循环的执行方式为:i)充放电之间无静止;ii)两阶段之间有数分钟的静止。利用测试获得的信息,绘制了能量效率随最小和最大工作电压变化的曲线。通过查阅数据和图表,可以获得优化这些器件能量效率的理想工作电压。
英文摘要:
Supercapacitors are increasingly used as energy storage elements. Unlike batteries, their state of charge has a considerable influence on their voltage in normal operation, allowing them to work from zero to their maximum voltage. In this work, a theoretical and practical analysis is proposed of the energy efficiency of these devices according to their working voltages. To this end, several supercapacitors were subjected to charge and discharge cycles until the measurements of current and voltage stabilized. At this point their energy efficiency was calculated. These charge-discharge cycles were carried out: i) without rest between charging and discharging; and ii) with a rest of several minutes between the two stages. Using the information obtained from the tests, the energy efficiency is shown plotted against the minimum and maximum working voltages. By consulting the data and the graphs, the ideal working voltages to optimize the energy efficiency of these devices can be obtained.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。