A Method for Solving the Maximum Power Point Parameters of Solar Cells
A maximum power point, solar cell technology, applied in complex mathematical operations and other directions, can solve problems such as cumbersome processes, no theoretical support for empirical formulas, inconvenient solutions, etc., to achieve clear relationships, avoid exponential and logarithmic operations, and facilitate engineering implementation. Effect
Active Publication Date: 2020-08-28
ANHUI POLYTECHNIC UNIV
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[0003] At present, the method of solving solar cell engineering parameters is mainly to mathematically model solar cells in engineering software such as Matlab, Maple, and Mathematica, and then solve them through Newton iteration method and related programs. The whole process is cumbersome, inconvenient to solve, and the relationship between variables unclear
Subsequently, relevant scholars improved the mathematical model of solar cells to establish a relatively simple engineering model, and solved some parameters in the model to give empirical formulas, but this method still requires Newton's iterative method, and the relevant empirical formulas are not given. Corresponding theoretical support
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[0045] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0046] Such as figure 1 Shown is a schematic diagram of the solar cell parameter solution flow chart of the present invention;
[0047] Step S1, according to the ideal circuit model of the solar cell and the relevant characteristics of the maximum power point of the solar cell, deduce the maximum power point voltage V under the ideal circuit model mpp_ideal and maximum power point current I mpp_ideal .
[0048] Specifically, step 1 is included: establishing an ideal circuit model and a general circuit model of a solar cell;
[0049] Step 2: Calculate the maximum power point parameters under th...
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The invention discloses a maximum power point parameter solving method for a solar cell. The method is characterized in comprising the following steps that: S1: establishing the ideal circuit model and the general circuit model of the solar cell; S2: calculating the maximum power point parameter under the ideal circuit model; and S3: in a general equivalent circuit model, according to the maximum power point parameter under the ideal circuit model and a Kirchhoff law, deducing a maximum power point parameter solving formula under the general equivalent circuit model. By use of the method, through a strict theory, a mathematical relationship among maximum power point voltage, maximum power point current, maximum power, each constant and the parameter is established, a transcendental equation which contains indexes in the general solar cell model is avoided, a relationship among variables is specific, and a solving process does not need an iterative algorithm.
Description
technical field [0001] The invention belongs to the field of solving the maximum power point of a solar battery, in particular to an engineering solution method for the voltage at the maximum power point of the solar battery, the current at the maximum power point and the maximum power. Background technique [0002] With the gradual reduction of various fossil energy sources on the earth, various renewable energy sources have become the development direction of various countries. Because solar energy is inexhaustible, inexhaustible, and has the advantages of cleanness and no pollution, it has become one of the renewable energy sources with great development potential. However, solar cell power generation system design, microgrid system simulation, and solar cell maximum power point tracking need to obtain solar cell-related engineering parameters, especially related parameters such as maximum power point voltage, maximum power point current, and maximum power. [0003] At p...
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IPC IPC(8): G06F17/11G06F17/17
CPCG06F17/11G06F17/17
Inventor 汪石农金震妮徐杰郑刘康汪林
Owner ANHUI POLYTECHNIC UNIV