Voltage Adaptation or Resistance Matching in Backpack Regenerative Systems?

TY - GEN

T1 - Voltage Adaptation or Resistance Matching in Backpack Regenerative Systems?

AU - Costanzo, Luigi

AU - Liu, Mingyi

AU - Lo Schiavo, Alessandro

AU - Vitelli, Massimo

AU - Zuo, Lei

N1 - Publisher Copyright: © 2022 IEEE.

PY - 2022

Y1 - 2022

N2 - Backpack energy harvesting systems are very promising solutions for powering portable devices without primary batteries, especially in excursionist and military applications. During human walking, they allow the conversion of the backpack mechanical vibration energy into electricity. In this paper the attention is focused on a backpack regenerative system based on a mechanical motion rectifier, which is able to convert the up-and-down oscillation of the backpack into a unidirectional rotation of a DC generator. Such a system needs a power electronic interface for optimizing the operating point that maximizes the extracted power. In particular, two types of ideal power electronic interfaces are analyzed and compared. The first one is based on the adaptation of the voltage at the DC generator output, while the second one is based on the matching of the resistance at the DC generator output. Through a numerical analysis, the average power extracted by the two interfaces are compared under different input displacement characteristics. The proposed analysis can be useful for the identification of the optimal voltage profile to set at the DC generator output for the maximization of the extracted electrical energy.

AB - Backpack energy harvesting systems are very promising solutions for powering portable devices without primary batteries, especially in excursionist and military applications. During human walking, they allow the conversion of the backpack mechanical vibration energy into electricity. In this paper the attention is focused on a backpack regenerative system based on a mechanical motion rectifier, which is able to convert the up-and-down oscillation of the backpack into a unidirectional rotation of a DC generator. Such a system needs a power electronic interface for optimizing the operating point that maximizes the extracted power. In particular, two types of ideal power electronic interfaces are analyzed and compared. The first one is based on the adaptation of the voltage at the DC generator output, while the second one is based on the matching of the resistance at the DC generator output. Through a numerical analysis, the average power extracted by the two interfaces are compared under different input displacement characteristics. The proposed analysis can be useful for the identification of the optimal voltage profile to set at the DC generator output for the maximization of the extracted electrical energy.

KW - Backpack regenerative systems

KW - Energy Harvesting

KW - MPPT

KW - Wearable devices

UR - http://www.scopus.com/inward/record.url?scp=85136385123&partnerID=8YFLogxK

U2 - 10.1109/MELECON53508.2022.9843015

DO - 10.1109/MELECON53508.2022.9843015

M3 - 会议稿件

AN - SCOPUS:85136385123

T3 - MELECON 2022 - IEEE Mediterranean Electrotechnical Conference, Proceedings

SP - 780

EP - 784

BT - MELECON 2022 - IEEE Mediterranean Electrotechnical Conference, Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 21st IEEE Mediterranean Electrotechnical Conference, MELECON 2022

Y2 - 14 June 2022 through 16 June 2022

ER -