ReL-SSHI rectifier based piezoelectric energy harvesting circuit with MPPT control technique

被引：2
|
作者：
Shen, Jiahui [1 ]
Xia, Yinshui [1 ]
Xia, Huakang [1 ]
机构：
[1] Ningbo Univ, Fac Elect Engn & Comp Sci, Ningbo 315211, Peoples R China
来源：
MICROELECTRONICS JOURNAL | 2022年 / 121卷
基金：
中国国家自然科学基金;
关键词：
Energy harvesting (EH); Rectifier-less synchronized switch harvesting on inductor (ReL-SSHI); Maximum power point tracking (MPPT); Envelope extractor; INTERFACE CIRCUIT;
D O I：
10.1016/j.mejo.2022.105379
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Rectifier-Less Synchronized Switch Harvesting on Inductor (ReL-SSHI) interface is one of the most efficient in-terfaces for weakly-coupled piezoelectric (PE) systems. However, ReL-SSHI interface has narrow optimal recti-fied voltage range. Therefore, in this paper a maximum power point tracking (MPPT) circuit is presented for ReL-SSHI interface. An envelope extractor and a hysteresis voltage controller are used in the MPPT, which can monitor the open circuit (OC) voltage of piezoelectric transducer (PZT) during Energy Harvesting (EH). Simu-lation shows the maximum MPPT efficiency can reach up to 99.1% and the Figure of Merit (FoM) factor can achieve 6.4. The measurements confirm the simplicity and efficiency of the proposed MPPT solution for the weakly-coupled piezoelectric energy harvesting (PEH).
引用
收藏
页数：7
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