Multi-peak photovoltaic array maximum power point tracking algorithm based on jump strategy

A technology of maximum power point and photovoltaic array, applied in photovoltaic power generation, instruments, regulating electrical variables, etc., can solve the problems of inability to track the global maximum power point, the system is trapped in local peaks, etc., to achieve safe and reliable implementation, and simple implementation. Effect

Active Publication Date: 2016-01-20
HOHAI UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a method for tracking the maximum power point of a multi-peak photovoltaic array based on a jumpi...

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
  • Multi-peak photovoltaic array maximum power point tracking algorithm based on jump strategy
  • Multi-peak photovoltaic array maximum power point tracking algorithm based on jump strategy
  • Multi-peak photovoltaic array maximum power point tracking algorithm based on jump strategy

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0031] Flowchart such as figure 1 shown.

[0032] image 3 Schematic diagram of the processing process for the double peak load line function. At the initial moment, there is no shading on the photovoltaic cell, the maximum power point of the photovoltaic array is at point A, and the corresponding voltage value at this time is V A , the power value is P A ; When a photovoltaic cell unit is blocked, the voltage value V at point A is first maintained A remains unchanged, at this time it falls to point B, and its output current value is I B ;Build load line function: V C = I B ×V OC / I SC , point B can jump to point C after being processed by the load line function, the voltage value V at this point C ; Carry out conductance incremental method tracking to C point area then, can finally obtain maximum power point D, and the electric current value of its output is I D , the power value is P D ;Finally, the maximum power tracking is carried out on the area of ​​point B, a...

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 discloses a multi-peak photovoltaic array maximum power point tracking algorithm based on a jump strategy. When a photovoltaic array is evenly illuminated, a conductance increment method is adopted for maximum power tracking; when the photovoltaic array which is originally illuminated is partially shielded, maximum partial power points can be rapidly positioned through a constructed load line function on the basis of the conductance increment method, and therefore global maximum power point tracking is achieved. The tracking method is high in practicability, and is more obvious in superiority when the photovoltaic array is partially shielded. On the basis of the constructed load line function, the problem that traditional maximum power point tracking easily runs into local optimum is effectively solved, maximum power output is accurately achieved, and a new method is provided for multi-peak photovoltaic array maximum power point tracking.

Description

technical field [0001] The invention relates to a multi-peak photovoltaic array maximum power point tracking algorithm based on a jump strategy, and belongs to the technical field of photovoltaic array applications. Background technique [0002] Facing the increasingly serious energy crisis, solar energy is playing an increasingly important role as a renewable energy source. Photovoltaic power generation is one of the main ways to utilize solar energy at present, and its development and utilization have been continuously developed. In order to improve the photoelectric conversion efficiency of the photovoltaic power generation system, the photovoltaic module should be dynamically operated near the maximum power point, and a suitable MPPT algorithm (such as the conductance incremental method) should be matched to find the maximum power point. Ideally, it can be considered that each photovoltaic cell inside the photovoltaic module works in the same environment, and its output...

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
IPC IPC(8): G05F1/67
CPCY02E10/56
Inventor 王冰胡庆燚田敏陈俊马
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap