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Photovoltaic maximum power tracking optimization control method and system, medium and device

A technology of maximum power tracking and optimal control, applied in control/regulation systems, photovoltaic power generation, instruments, etc., can solve the problems of high cost, low tracking accuracy, power loss, etc., and achieve reduced phase delay, good filtering effect, and suppression The effect of noise amplification

Active Publication Date: 2019-09-24
UNIV OF JINAN +1
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  • Abstract
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Problems solved by technology

The problems that have always existed in photovoltaic power generation systems are: first, the output characteristics of photovoltaic cells are greatly affected by the external environment, such as ambient temperature and external light intensity; second, the photoelectric conversion efficiency of photovoltaic cells is very low, and the cost itself is expensive. big investment
However, the actual working environment of the photovoltaic system has internal disturbances caused by changes in temperature and light intensity and external disturbances superimposed on electrical quantities. Judgment phenomenon, easy to cause power loss

Method used

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  • Photovoltaic maximum power tracking optimization control method and system, medium and device

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Embodiment Construction

[0032] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0034] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

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Abstract

The present disclosure provides a photovoltaic maximum power tracking optimization control method and system, a medium and a device. The method comprises by using a discrete fastest tracking differentiator, predicting and compensating the phase delay performance of the fastest tracking differentiator; and by using an improved tracking differentiator, performing maximum power point tracking control based on a conductance increment method. The method improves tracking efficiency, and can track the maximum power point while filtering disturbances so as to reduce power losses and errors.

Description

technical field [0001] The disclosure belongs to the field of automatic control, and in particular relates to a photovoltaic maximum power tracking optimization control method, system, medium and equipment. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] As a product that uses solar energy as the main energy source, photovoltaic cells have the advantages of cleanliness and durability that traditional batteries do not have. The problems that have always existed in photovoltaic power generation systems are: First, the output characteristics of photovoltaic cells are greatly affected by the external environment, such as ambient temperature and external light intensity; second, the photoelectric conversion efficiency of photovoltaic cells is very low, and the cost itself is expensive. Big investment. For photovoltaic cells with nonlinear ou...

Claims

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Application Information

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IPC IPC(8): G05F1/67
CPCG05F1/67Y02E10/56
Inventor 刘依明魏军宗西举程新功衣文雨刘大志
Owner UNIV OF JINAN
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