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Maximum power tracing algorithm based on power prediction

A technology of maximum power tracking and power prediction, which is applied to instruments, control/regulation systems, and electrical variables to improve overall efficiency, reduce energy loss, and improve power generation efficiency.

Inactive Publication Date: 2014-09-24
JIANGSU EVER SOLAR NEW ENERGY CO LTD
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Problems solved by technology

This method can overcome the shortcomings of the conventional perturbation observation method and conductance incremental method, solve the problems of misjudgment of sudden changes in external conditions and local maximum power, and quickly and accurately track the maximum power point, while maximizing the original maximum power tracking algorithm. Retained to facilitate the porting of optimization algorithms under different maximum power algorithms on different platforms, to realize the optimization of conventional maximum power point tracking algorithms

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  • Maximum power tracing algorithm based on power prediction
  • Maximum power tracing algorithm based on power prediction
  • Maximum power tracing algorithm based on power prediction

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Embodiment Construction

[0050] The technical solutions of the embodiments of the present invention will be checked and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] Such as figure 1 As shown, it is a schematic diagram of a solar grid-connected power generation system based on the maximum power tracking algorithm of power prediction in the present invention. The system includes a photovoltaic cell module 1, an inverter module mainly composed of DC / DC2 and DC / AC3, and a controller 5 , and Grid 4. The direct current generated by the photovoltaic cell module 1 is converted by the inverter module to generate alternating ...

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Abstract

The invention relates to a maximum power tracing method. The maximum power tracing method optimizes and adjusts a conventional maximum power tracing algorithm on the basis of power prediction, that is, current maximum power tracing disturbance is modified and optimized through power prediction when an original maximum power tracing algorithm is reserved. The maximum power tracing method can overcome the defects of the conventional maximum power tracing algorithm and solve the problems such as misjudgment and local maximum power. The maximum power tracing method reserves the original maximum power tracing algorithm to the limit, and thus facilitates transplant of optimization algorithms under different platforms and different maximum power tracing methods.

Description

technical field [0001] The invention relates to photovoltaic power generation technology, in particular to the maximum power point tracking (MPPT) technology of photovoltaic cells based on power prediction. Background technique [0002] Due to the increasing demand for energy in human society, traditional fossil fuels are rapidly depleting. The International Energy Agency predicts that the world's coal can only be used for 220 years, and the peak of oil and gas extraction will be in 2012, and will be exhausted in 30 to 60 years. do. It is estimated that my country's coal can only be exploited for 80 years, natural gas can be exploited for 30 years, and oil can be exploited for 20 years. Moreover, the use of traditional fossil fuels can cause a lot of pollution. At present, due to the extensive use of fossil fuels, human beings emit a large amount of harmful gases into the atmosphere, which seriously damages the ecological environment of the earth. It has caused hazards su...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/67
CPCY02E10/56
Inventor 张勇李世军廖小俊舒成维袁帅李白龙徐力
Owner JIANGSU EVER SOLAR NEW ENERGY CO LTD
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