A High Efficiency Solar PV Micro-Power Supply Integrated with Wireless Sensor Nodes

2013 ◽  
Vol 401-403 ◽  
pp. 495-499 ◽  
Author(s):  
Yong Tai He ◽  
Li Xian Xiao
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Power Supply ◽  
Sensor Nodes ◽  
Utilization Efficiency ◽  
Wireless Sensor ◽  
Solar Pv ◽  
Wireless Sensor Nodes ◽  
Micro Power ◽  
Cell Arrays

In the wireless sensor nodes integrated with the solar PV micro-power supply, the solar energy conversion efficiency and utilization efficiency directly determine working life and stability of the wireless sensor nodes. Thus, a novel solar PV micro-power supply is designed which four solar cell arrays with same open voltage are designed and they are placed in top and three sides of the wireless sensor nodes. Simultaneous, the optimal voltage control technology is used to control work voltage of four solar cell arrays in the design. In addition, the prototype of wireless sensor node integrated with the solar PV micro-power supply is done. Moreover, the working characteristics of the prototype are tested in natural condition. The working voltages of four solar cell arrays are controlled in range of optimal voltage, and the solar cell arrays have high conversion efficiency. The output energy of system is increased about 50% by adding side solar cell arrays.

Solar micro-power system for self-powered wireless sensor nodes

2008 ◽  
Author(s):  
Yongtai He ◽  
Yangqiu Li ◽  
Lihui Liu ◽  
Lei Wang
Keyword(s):  
Power System ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Micro Power ◽  
Self Powered

Novel Steam Powered Gravity Assisted Standalone Power System (SP-GA-SP System) Design for Remote Wireless Sensor Networks

2013 ◽  
Vol 440 ◽  
pp. 248-253
Author(s):  
P. Shunmuga Perumal ◽  
V. Rhymend Uthariaraj ◽  
V.R. Elgin Christo
Keyword(s):  
Wireless Sensor Networks ◽  
Power Supply ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Electrical Grid ◽  
Remote Areas ◽  
Dense Forest ◽  
Battery Systems ◽  
Remote Sites

Uninterrupted power supply through electrical grid is not possible for many remote areas like dense forest, hill areas, and deserts. The objective of the proposed work is to generate stand alone electricity using steam powered gravity assisted SP system for remote WSN applications. The proposed design drives the generator by triggering gravity force using steam powered cylinders with high thermal efficiency. The proposed SP system is used to recharge the battery systems of UAVs in remote sites thereby the UAVs are further used to recharge the remote wireless sensor nodes using laser beam transmissions.

scholarly journals A Hybrid Microenergy Storage System for Power Supply of Forest Wireless Sensor Nodes

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1409 ◽  
Author(s):  
Huamei Wang ◽  
Wenbin Li ◽  
Daochun Xu ◽  
Jiangming Kan
Keyword(s):  
Power Supply ◽  
Storage System ◽  
Input Power ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Wireless Sensor Nodes ◽  
Ultra Low Power ◽  
Hybrid Energy ◽  
Total Input ◽  
Self Powered

Wireless sensor nodes (WSNs) are widely used in the field of environmental detection; however, they face serious power supply problems caused by the complexity of the environmental layout. In this study, a new ultra-low-power hybrid energy harvesting (HEH) system for two types of microenergy collection (photovoltaic (PV) and soil-temperature-difference thermoelectric (TE)) was designed to provide stable power to WSNs. The power supply capabilities of two microenergy sources were assessed by analyzing the electrical characteristics and performing continuous energy data collection. The HEH system consisted of two separated power converters and an electronic multiplexer circuit to avoid impedance mismatch and improve efficiency. The feasibility of the self-powered HEH system was verified by consumption analysis of the HEH system, the WSNs, and the data analysis of the collected microenergy. Taking the summation of PV and TEG input power of 1.26 mW (PPV:PTEG was about 3:1) as an example, the power loss of the HEH system accounted for 33.8% of the total input power. Furthermore, the ratio decreased as the value of the input power increased.

Research of Solar Photoelectric Micro-Power Supply on Chip

2013 ◽  
Vol 302 ◽  
pp. 776-781
Author(s):  
Yong Tai He ◽  
Li Xian Xiao ◽  
Rui Ming Liu
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Power Supply ◽  
Wireless Sensor ◽  
Integration Scheme ◽  
Main Process ◽  
Integrated Devices ◽  
Micro Power ◽  
On Chip ◽  
Process Compatibility

In order to reduce volume of MEMS wireless sensor with solar photoelectric micro-power supply, the integration scheme of solar photoelectric micro-power supply on chip is proposed in the paper. The scheme is consisted of seven main process steps, and has higher process compatibility. The characteristics of the integrated devices of the solar photoelectric micro-power supply are analyzed by using the semiconductor theory. The results show the device characteristics meet the requirement of the solar photoelectric micro-power supply. Moreover, the technology improving conversion efficiency of solar cells on chip is proposed by use of the back surfaces field (BSF). The conversion efficiency of solar cells reached 13.4%

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