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A method for design of photoelectric micro power system based on model analysis

A technology of system design and model analysis, applied in the field of optoelectronics

Inactive Publication Date: 2009-10-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

At present, there is no relevant literature, research report or patent concerning the method of designing a photovoltaic micro-energy system by establishing a photovoltaic micro-energy design model.

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  • A method for design of photoelectric micro power system based on model analysis
  • A method for design of photoelectric micro power system based on model analysis
  • A method for design of photoelectric micro power system based on model analysis

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Embodiment

[0145] For example, it is required to design an integrated photoelectric micro-energy system for the sensor node Ginze4. The working voltage of the sensor node Ginze4 is 3.3V, and the working current is as follows: image 3 shown.

[0146] First, analyze the climatic conditions of the region where the node is used.

[0147] There are relatively more sunny days in Beijing. There are about 163 sunny days a year on average (not counting cloudy days), and some years can exceed 220 sunny days. The annual average solar radiation in Beijing is 135-140 kcal / cm2, and the annual sunshine hours in Beijing are the most in spring. The average monthly sunshine is 230-290 hours. Winter is the least, with less than 200 hours of sunshine per month. The annual average solar irradiance on sunny days is about 60mW / cm2. The rainy days are mainly concentrated in July-September. In order to ensure the stability of the sensor nodes, it is determined that the sensor nodes work in continuous rainy...

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Abstract

The present invention discloses a method for design of photoelectric micro power system based on model analysis and pertains to the technical field of photoelectricity. According to the node composition and functional requirements of the integrated photoelectric micro power sensor, the present invention divides the sensor into four parts: energy conversion subsystem, energy storage subsystem, energy management subsystem and sensor nodes. The energy parameters of these four parts are analyzed. According to the power supply method to sensor nodes from the photoelectric micro power system, a design model for the relations between different energy parameters of the photoelectric micro power system is established. According to the functional requirements of the photoelectric micro power and the environmental features of the areas where micro power is used, system design parameters are determined. From system design parameters and micro power design model, the area of photovoltaic cell and the cell circuit of micro power system are determined, thus completing the design of integrated sensor photoelectric micro power system. The present invention uses a design model to greatly simplify system design process and establish a universal design method for the design of photoelectric micro power system.

Description

technical field [0001] The invention relates to a design method of a photoelectric micro-energy system, belonging to the field of photoelectric technology. Background technique [0002] In recent years, integrated wireless sensor network technology has been widely used in industrial control, environmental monitoring, agricultural management and military and other fields. Among them, the output efficiency and stability of the photoelectric micro-energy system are directly related to the working status of sensor nodes and networks. The output characteristics of photovoltaic micro-energy are related to energy conversion efficiency, energy storage and management schemes, etc. The design of photovoltaic micro-energy involves many factors such as solar radiation, conversion characteristics of photovoltaic cells, storage characteristics of energy storage, energy management schemes, and power consumption of sensor nodes. [0003] The design and optimization of photovoltaic micro-e...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02J15/00H02N6/00H02S10/00
CPCY02E10/566Y02E70/30Y02E10/56
Inventor 李艳秋何永泰刘丽辉王磊
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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