A stand-alone power supply system using single photovoltaic cell with maximum power point tracking

2012 ◽  
Author(s):  
Takuro Tsuji ◽  
Akira Hidaka ◽  
Satoshi Matsumoto
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Maximum Power Point Tracking ◽  
Photovoltaic Cell ◽  
Supply System ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

scholarly journals Design of Photovoltaic Power Supply MPPT Circuit for WSN Node Based on Current Observation

2018 ◽  
Vol 14 (07) ◽  
pp. 45 ◽  
Author(s):  
Lieping Zhang ◽  
Yanlin Yu ◽  
Hang Ma ◽  
Yu Zhang ◽  
Peng Cao
Keyword(s):  
Power Supply ◽  
Collection Efficiency ◽  
Maximum Power Point Tracking ◽  
Tracking Algorithm ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Photovoltaic Power ◽  
Power Point

In view of the problem of low energy collection efficiency and low efficiency of photovoltaic power supply modules in wireless sensor networks, a maximum power point tracking algorithm suitable for photovoltaic power supply of wireless sensor nodes is proposed. Firstly, the photovoltaic cell model is analyzed. Based on this, the traditional maximum power point tracking algorithm is analyzed. Combining with the advantages of disturbance observing method and load current maximization method, the problem of low working efficiency and low energy collection efficiency of functional modules is solved. Current observation method maximum power point tracking algorithm, and complete the relevant hardware circuit design. Experimental results show that the power consumption of MPPT circuit is low, and the efficiency caused by environmental factors is very small. The efficiency is kept above 90% and the overall system efficiency is about 87%, which provides a stable and reliable photovoltaic power supply for WSN nodes.

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