Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Parameter identification method of photovoltaic model based on eagle strategy and adaptive nm simplex

A photovoltaic model and parameter identification technology, applied in CAD numerical modeling, design optimization/simulation, instrumentation, etc., to achieve the effect of increasing speed, improving convergence speed, and reducing the amount of calculation

Active Publication Date: 2020-03-10
FUZHOU UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of photovoltaic model parameter identification method based on eagle strategy and self-adaptive Nelder-Mead simplex, to overcome the defective of existing relevant technology, thereby improve the performance of photovoltaic model parameter identification

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Parameter identification method of photovoltaic model based on eagle strategy and adaptive nm simplex
  • Parameter identification method of photovoltaic model based on eagle strategy and adaptive nm simplex
  • Parameter identification method of photovoltaic model based on eagle strategy and adaptive nm simplex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0015] The present invention provides a photovoltaic model parameter identification method based on eagle strategy and self-adaptive Nelder-Mead simplex, the flow chart is as follows figure 1 shown. Fig. 2 is the single diode and double diode equivalent circuit model of the photovoltaic array of the present embodiment, module string, module or battery, wherein Figure 2a is the equivalent electrical model of a single diode, Figure 2b It is a double diode equivalent circuit model. The single diode photovoltaic mathematical model is shown in the following formula:

[0016]

[0017] The dual diode data model is shown in the following formula:

[0018]

[0019] where I L and V L For the current and voltage values ​​in the measured IV curve (volt-ampere curve); V t is the thermal voltage by determined, where K is the Boltzmann consta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an eagle policy and adaptive NM simplex-based photovoltaic model parameter identification method. The method comprises the following steps of S1: obtaining a photovoltaic model by adopting a photovoltaic IV curve test instrument to perform an IV characteristic curve, and setting a range of photovoltaic model parameters according to the number of serial and parallel solar cells of a photovoltaic array; S2: performing a rough global search on the photovoltaic model parameters by adopting a swarm intelligent optimization algorithm, and obtaining a plurality of relatively good photovoltaic model parameter initial value vectors; S3: performing a further rough local search on a group of optimal photovoltaic model parameter vector accessories in the step S2 by adopting a plurality of Nelder-Mead simplexes; and S4: performing a further fine local search on optimal model parameter vectors in the step S3 by adopting a single adaptive Nelder-Mead simplex to obtain optimal photovoltaic model parameter vectors. According to the technical scheme, the precision, speed and reliability of photovoltaic model parameter identification can be remarkably improved.

Description

technical field [0001] The invention belongs to the detection technology of solar cells and photovoltaic power generation arrays, and in particular relates to a photovoltaic model parameter identification method based on eagle strategy and self-adaptive NM simplex. Background technique [0002] Accurate modeling of photovoltaic modules and arrays plays an important role in optimizing the power generation efficiency of photovoltaic power plants. However, due to the installation and operation of photovoltaic modules and arrays in a complex outdoor environment, they are also affected by various environmental factors such as thermal cycle, humidity, ultraviolet rays, and wind excitation, which are prone to local material aging, performance degradation, cracks, etc. problem, causing the model parameters to change over time. Photovoltaic modules and arrays mainly use single / double diode models, and their model parameters have an important impact on the accuracy of the model. The...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10
CPCG16Z99/00
Inventor 陈志聪吴丽君吴振辉林培杰程树英
Owner FUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com