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Method for solving parameter of photovoltaic cell single diode model

A photovoltaic cell and single diode technology, applied in the field of computer algorithms, can solve problems such as low solution accuracy

Inactive Publication Date: 2015-03-04
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
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Problems solved by technology

However, the algorithm uses fewer points, resulting in low solution accuracy

Method used

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  • Method for solving parameter of photovoltaic cell single diode model
  • Method for solving parameter of photovoltaic cell single diode model
  • Method for solving parameter of photovoltaic cell single diode model

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[0016] The calculation method of the photovoltaic cell single diode four-parameter model provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017]

[0018] figure 1 It is a calculation flow chart of the photovoltaic cell single diode four-parameter model of the present invention.

[0019] Such as figure 1 As shown, the calculation method of the single diode four-parameter model of photovoltaic cells includes the following steps:

[0020] Step S-1, constructing a four-parameter model of a photovoltaic cell single diode.

[0021] The current output equation of the photovoltaic cell single diode model is:

[0022] I t = I ph - I sd [ exp q ( V t ...

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Abstract

The invention provides a method for solving a parameter of a photovoltaic cell single diode model. The method comprises the following steps of step 1, building a photovoltaic cell single diode four-parameter model, i.e. taking the equation that RMES is equal to a formula as an objective function, wherein an ideal factor n is equal to 1.5, and reducing the number of unknown parameters in the objective function to four, i.e. Rs, Rsh, Iph and Isd; step 2, calculating the optimal solution of the objective function by a bee colony algorithm, including the steps of initializing each bee, calculating the value of the objective function of each bee, taking at least two bees with relatively low objective function value as honey-collecting bees, taking the other bees as following bees, taking at least one bee with the lowest objective function value from the honey-collecting bees as an elite bee, updating the positions of the following bees according to a random stepping function, updating the positions of the honey-collecting bees according to the elite bee, performing iteration for preset times, and obtaining the optimal solution of the objective function to obtain the values of the four model parameters, i.e. the Rs, Rsh, Iph and Isd.

Description

technical field [0001] The invention relates to a computer algorithm, in particular to a method for solving model parameters of a single diode of a photovoltaic cell by adopting a bee colony algorithm. Background technique [0002] Due to the increasingly serious environmental pollution and the depletion of fossil fuels, the research on renewable energy has become the focus of attention of all countries. Solar energy has become an internationally recognized ideal alternative energy due to its advantages of abundant resources, cleanliness and pollution-free. Photovoltaic cells are the core of photovoltaic power generation systems and have become a hot research topic for scholars at home and abroad. A suitable photovoltaic cell model is of great significance for the design and manufacture of photovoltaic testers, photovoltaic cell maximum power tracking (Maximum Power Point Tracking, MPPT) and photovoltaic cell system evaluation. [0003] In the evaluation of photovoltaic ce...

Claims

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Application Information

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IPC IPC(8): G06F19/00G06F17/50G06N3/00
CPCY02E60/00
Inventor 魏凯简献忠
Owner UNIV OF SHANGHAI FOR SCI & TECH
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