Research of Matching Power for Photovoltaic Charging Control System

Xin Sheng He; Zuo Cai Dai; Chun Fu Gao; Shao Tai Deng

doi:10.4028/www.scientific.net/KEM.620.220

Paper Titles

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Research of Matching Power for Photovoltaic Charging Control System
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 620Research of Matching Power for Photovoltaic...

Research of Matching Power for Photovoltaic Charging Control System

Abstract:

For the maximum output power varies with changes in load characteristics match the characteristics of solar cells in photovoltaic power generation system, the system runs through dynamic MPPT maximum power of self-optimizing process to achieve power from the PV charge control match. First, the output characteristic simulation analysis of the solar load resistive, capacitive load showed that solar power batteries for load matching efficiency is higher than in a purely resistive load. Then, using the improved algorithm for variable step size perturbation and observation of the received output power of solar power and load matching control, experiments showed that the optimum operating point of the circuit can control the real-time monitoring of solar cells and load. The output power from the battery load matching circuit to match the time working in the best working condition, if the energy is surplus or shortage, the system can control dynamic self-optimizing adjustment to charge, which leads to batteries absorbed power increasing and the efficiency of solar energy collection improving.

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Periodical:

Key Engineering Materials (Volume 620)

Pages:

220-224

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.620.220

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Online since:

August 2014

Authors:

Xin Sheng He, Zuo Cai Dai*, Chun Fu Gao, Shao Tai Deng

Keywords:

Charge Control, Load, Photovoltaic, Power Matching

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