Design of Hybrid Energy Harvesting Self-Powered Power Supply for Transmission Line Sensor

In this paper, an integrated thermoelectric (TE) and photovoltaic (PV) hybrid energy harvesting system (HEHS) is proposed for self-powered internet of thing (IoT)-enabled wireless sensor networks (WSNs). The proposed system can run at a minimum of 0.8 V input voltage under indoor light illumination of at least 50 lux and a minimum temperature difference, ∆T = 5 °C. At the lowest illumination and temperature difference, the device can deliver 0.14 W of power. At the highest illumination of 200 lux and ∆T = 13 °C, the device can deliver 2.13 W. The developed HEHS can charge a 0.47 F, 5.5 V supercapacitor (SC) up to 4.12 V at the combined input voltage of 3.2 V within 17 s. In the absence of any energy sources, the designed device can back up the complete system for 92 s. The sensors can successfully send 39 data string to the webserver within this time at a two-second data transmission interval. A message queuing telemetry transport (MQTT) based IoT framework with a customised smartphone application ‘MQTT dashboard’ is developed and integrated with an ESP32 Wi-Fi module to transmit, store, and monitor the sensors data over time. This research, therefore, opens up new prospects for self-powered autonomous IoT sensor systems under fluctuating environments and energy harvesting regimes, however, utilising available atmospheric light and thermal energy.

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A hybrid energy harvesting system for self-powered applications in shared bicycles

Sustainable Energy Technologies and Assessments ◽

10.1016/j.seta.2021.101891 ◽

2022 ◽

Vol 51 ◽

pp. 101891

Author(s):

Xiaoyi Dai ◽

Hao Wang ◽

Hao Wu ◽

YaJia Pan ◽

Dabing Luo ◽

...

Keyword(s):

Energy Harvesting ◽

Hybrid Energy ◽

Energy Harvesting System ◽

Self Powered ◽

Hybrid Energy Harvesting

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Time-Multiplexed Self-Powered Wireless Current Sensor for Power Transmission Lines

Energies ◽

10.3390/en14061561 ◽

2021 ◽

Vol 14 (6) ◽

pp. 1561

Author(s):

Hao Chen ◽

Zhongnan Qian ◽

Chengyin Liu ◽

Jiande Wu ◽

Wuhua Li ◽

...

Keyword(s):

Energy Harvesting ◽

Transmission Line ◽

Transmission Lines ◽

Power Transmission ◽

Current Measurement ◽

Current Sensor ◽

Power Transmission Line ◽

Power Transmission Lines ◽

Current Sensing ◽

Self Powered

Current measurement is a key part of the monitoring system for power transmission lines. Compared with the conventional current sensor, the distributed, self-powered and contactless current sensor has great advantages of safety and reliability. By integrating the current sensing function and the energy harvesting function of current transformer (CT), a time-multiplexed self-powered wireless sensor that can measure the power transmission line current is presented in this paper. Two operating modes of CT, including current sensing mode and energy harvesting mode, are analyzed in detail. Through the design of mode-switching circuit, harvesting circuit and measurement circuit are isolated using only one CT secondary coil, which eliminates the interference between energy harvesting and current measurement. Thus, the accurate measurement in the current sensing mode and the maximum energy collection in the energy harvesting mode are both realized, all of which simplify the online power transmission line monitoring. The designed time-multiplexed working mode allows the sensor to work at a lower transmission line current, at the expense of a lower working frequency. Finally, the proposed sensor is verified by experiments.

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Internet of Hybrid Energy Harvesting Things

IEEE Internet of Things Journal ◽

10.1109/jiot.2017.2742663 ◽

2018 ◽

Vol 5 (2) ◽

pp. 736-746 ◽

Cited By ~ 69

Author(s):

Ozgur B. Akan ◽

Oktay Cetinkaya ◽

Caglar Koca ◽

Mustafa Ozger

Keyword(s):

Energy Harvesting ◽

Hybrid Energy ◽

Hybrid Energy Harvesting

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A Spherical Hybrid Triboelectric Nanogenerator for Enhanced Water Wave Energy Harvesting

Micromachines ◽

10.3390/mi9110598 ◽

2018 ◽

Vol 9 (11) ◽

pp. 598 ◽

Cited By ~ 13

Author(s):

Kwangseok Lee ◽

Jeong-won Lee ◽

Kihwan Kim ◽

Donghyeon Yoo ◽

Dong Kim ◽

...

Keyword(s):

Energy Harvesting ◽

Water Waves ◽

Water Wave ◽

Degrees Of Freedom ◽

Low Frequency ◽

Random Motion ◽

Triboelectric Nanogenerator ◽

Hybrid Energy ◽

Pollution Levels ◽

Self Powered

Water waves are a continuously generated renewable source of energy. However, their random motion and low frequency pose significant challenges for harvesting their energy. Herein, we propose a spherical hybrid triboelectric nanogenerator (SH-TENG) that efficiently harvests the energy of low frequency, random water waves. The SH-TENG converts the kinetic energy of the water wave into solid–solid and solid–liquid triboelectric energy simultaneously using a single electrode. The electrical output of the SH-TENG for six degrees of freedom of motion in water was investigated. Further, in order to demonstrate hybrid energy harvesting from multiple energy sources using a single electrode on the SH-TENG, the charging performance of a capacitor was evaluated. The experimental results indicate that SH-TENGs have great potential for use in self-powered environmental monitoring systems that monitor factors such as water temperature, water wave height, and pollution levels in oceans.

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