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Photovoltaic cooling-heating electric co-production system modeling method

A technology of cogeneration of cooling, heating and power, system modeling, applied in the direction of electric digital data processing, special data processing applications, instruments, etc., can solve the problems of reduced power generation efficiency, high simulation cost, and shortened life of battery components

Inactive Publication Date: 2017-09-29
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the power generation efficiency of solar photovoltaic cells is about 15%, and the remaining more than 80% of the solar radiation is absorbed by the panels and converted into heat energy. The temperature of the solar cell rises and the power generation efficiency decreases
In addition, solar cells work under high temperature conditions for a long time, and the life of battery components will be greatly shortened.
Objectively speaking, the simple use of solar energy for power generation does not have a high utilization rate of solar energy. Using actual devices for power supply network model and heating model simulation, the simulation cost is high, the simulation is prone to accidents, and the safety is poor

Method used

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  • Photovoltaic cooling-heating electric co-production system modeling method
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  • Photovoltaic cooling-heating electric co-production system modeling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Example 1: Analysis of Combined Cooling, Heating and Power System

[0118] 1.1 Concentrating PV / T solar energy comprehensive utilization system

[0119] Based on the composite parabolic concentrator (CPC) type solar energy comprehensive utilization system, the CPC type solar energy comprehensive utilization system focuses the sunlight on the solar panel through the concentrator, which improves the light intensity per unit area of ​​the solar panel without Excessive heat is generated on the panels, which improves the efficiency of photovoltaic power generation. On the other hand, the cooling medium of the CPC type solar energy comprehensive utilization system will also take away excess heat and use it as a path, which plays a positive role in the utilization of solar light and heat.

[0120] The CPC type solar energy comprehensive utilization system is composed of CPC concentrator, photoelectric system, heat exchange system and other auxiliary equipment. The structure ...

Embodiment 2

[0226] Embodiment 2: as Figure 1-Figure 18 As shown, a photovoltaic cogeneration system modeling and simulation device includes a host computer and a general real-time simulation platform. The general real-time simulation platform includes a 1# target machine for simulating the power supply network model and a 1# target machine for simulating the heating network model The 2# target machine, the host computer is connected to the 1# target machine and 2# target machine respectively through the switch.

[0227] Preferably, the above-mentioned universal real-time simulation platform is installed in the chassis 1, and the chassis 1 is provided with a multi-layer detachable partition 2, and the bosses at both ends of the partition 2 are limited to the symmetrical limit grooves provided on the two inner walls of the chassis 1, And it is fixed with a limit clip 3, and the partition plate 2 is provided with a T-shaped hole 4 for installing the target machine.

[0228] Preferably, the...

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Abstract

The invention discloses a photovoltaic cooling-heating electric co-production system modeling method. According to the technical scheme, a photovoltaic cooling-heating electric mathematic model is constructed, and the photovoltaic cooling-heating electric mathematic model is simulated through MATLAB / Simulink. An electric co-production system model is constructed and subjected to digital simulation, in the simulation process, the temperature-rise problem of a photovoltaic component brought in an electricity generation process is considered, cooling modeling is conducted on a solar battery during simulation, the energy in a solar cell panel is collected and utilized, the simulation of the energy utilized rate is achieved, so that the simulation has high reliability, the purpose that the temperature of the photovoltaic component is effectively lowered can be achieved, the temperature range fit for work is controlled, the waste heat of the photovoltaic component is effectively utilized, the recycle of the energy is achieved, the occurrence of energy waste is reduced, the simulation effect is good, the simulation cost is low, the solar photovoltaic efficiency and photothermal efficiency when perturbation occurs in the illumination intensity are observed in real time, and the simulation safety is sharply improved.

Description

technical field [0001] The invention relates to a modeling method for a photovoltaic cooling, heating and power cogeneration system, and belongs to the technical field of power cogeneration simulation. Background technique [0002] With the continuous exploration of new energy sources, solar energy utilization technology has developed very rapidly in recent years. However, in order to achieve more efficient and reasonable utilization of solar energy, more in-depth research on solar energy conversion technology is still required. Generally, the power generation efficiency of solar photovoltaic cells is about 15%, and the remaining 80% or more of the solar radiation is absorbed and converted into heat energy by the solar panel. As the temperature of the solar cell increases, the power generation efficiency decreases. In addition, the long-term operation of solar cells under high temperature conditions will greatly shorten the life of battery components. From an objective po...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20Y02E60/00
Inventor 彭雨郝正航谭兴
Owner GUIZHOU UNIV
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