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Energy harvesting by sweeping voltage-escalated charging of a reconfigurable supercapacitor array

机译:通过扫描电压升高的可重构超级电容器阵列充电的能量收集

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EscaCap is an energy harvester that uses a boost-up charge pump to perform maximum power-transfer tracking (MPTT) while charging a reservoir supercapacitor array (RSA) with a reconfigurable topology. Unlike buck-down type harvesters, the voltage-doubling charge pump of EscaCap enables the sensor nodes to operate under low ambient power conditions. The supercapacitors in the RSA can be dynamically configured for series or parallel topologies by means of a switch array for not only minimizing leakage of the supercapacitors but also improving the charging speed. Furthermore, the RSA of EscaCap is modular and can be easily expanded. Experimental results show that EscaCap can harvest energy efficiently under low and high solar irradiation conditions, achieve shorter charging time, and demonstrate flexibility and robustness.
机译:ESCACAP是一种能源收割机,它使用升压电荷泵进行最大动力传输跟踪(MPTT),同时以可重新配置的拓扑对储存器超级电容器阵列(RSA)充电。与降压式收割机不同,ESCACAP的电压加倍电荷泵使传感器节点能够在低环境电源条件下运行。 RSA中的超级电容器可以通过开关阵列动态配置为串联或并联拓扑,不仅可以最大限度地减少超级电容器的泄漏,而且还提高充电速度。此外,ESCACAP的RSA是模块化的,可以很容易地扩展。实验结果表明,ESCACAP可以在低和高太阳照射条件下有效地收获能量,实现更短的充电时间,并表现出灵活性和鲁棒性。

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