scholarly journals Hybrid-input power supply with PFC (power factor corrector) and MPPT (maximum power point tracking) features for battery charging and HB-LED driving

Energy ◽  
2014 ◽  
Vol 72 ◽  
pp. 501-509 ◽  
Author(s):  
Chih-Lung Shen ◽  
Yong-Xian Ko
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Maximum Power Point Tracking ◽  
Input Power ◽  
Maximum Power Point ◽  
Battery Charging ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Factor Corrector ◽  
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.

scholarly journals A Novel Control Strategy for PV/Wind/Battery Hybrid System Using High Gain Boost Converter

2021 ◽  
Vol 7 (03) ◽  
pp. 295-303
Keyword(s):  
Energy Management ◽  
Control Strategy ◽  
Maximum Power Point Tracking ◽  
Maximum Power ◽  
Pi Control ◽  
Maximum Power Point ◽  
Battery Charging ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Power Point

In this paper, a classic proportional–integral (PI) control strategy as an energy management strategy (EMS) and a microgrid stand-alone power system configuration are proposed to work independently out of grid. The proposed system combines photovoltaics (PVs), and Battery. The system supplies a dump load with its demand power. The system includes DC/DC and DC/AC converters, as well as a maximum power point tracking (MPPT) to maximize the harvested energy from PV array. The classic PI control strategy is used to control the main system parameters like state-of-charge (SOC) for the battery. The corresponding energy management and control strategy are proposed to realize the power balance among three ports in different operating scenarios, which comprehensively takes both the maximum power point tracking (MPPT) benefit and the battery charging/discharging management into consideration. The simulations are conducted using the Matlab/Simulink software to verify the operation performance of the proposed PV/battery hybrid distributed power generation system with the corresponding control algorithms, where the MPPT control loop, the battery charging/discharging management loop are enabled accordingly in different operating scenarios.

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