Solar photovoltaic air conditioning system and power supply method thereof

A solar photovoltaic and air conditioning system technology, applied in air conditioning systems, space heating and ventilation, information technology support systems, etc.

Inactive Publication Date: 2015-04-29
SHANDONG LUCY NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Under the current technical level, the solar photovoltaic air-conditioning system and its power supply have the following problems: access to the battery, large investment, not environmentally friendly; Seamless switching, poor system reliability; excess power cannot be connected to the Internet, resulting in energy waste
[0006] Aiming at the problems of large investment, poor reliability, and low utilization rate of solar cells in solar photovoltaic air conditioners in the prior art, no effective solution has been proposed yet

Method used

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  • Solar photovoltaic air conditioning system and power supply method thereof
  • Solar photovoltaic air conditioning system and power supply method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0063] Implementation mode 1: 100% use of photovoltaic power.

[0064] It adopts the method of power supply completely by the photovoltaic cell array, neither connected to the mains nor a storage battery. Based on the power generation capacity of the photovoltaic cell basically matching the cooling load required by the building, the solar photovoltaic air conditioner is driven by the present invention, and the clean and renewable energy such as solar energy is used to effectively power the air conditioner host. The driver of the solar air conditioner operates at the rated frequency of the air conditioner, which is generally 50Hz in our country, and 60Hz in some countries. The power output by the photovoltaic cell array is completely used for the air conditioner. When the output power of the photovoltaic cell array drops, the air conditioner intelligently reduces the operating frequency to match the output power of the photovoltaic array, so that the air conditioner can complet...

Embodiment approach 2

[0065] Implementation Mode 2: Prioritize the use of solar energy, and the insufficient part is supplemented by commercial power.

[0066] When there is not enough sunlight such as rain, snow, cloudy days or at night, the DC power provided by the photovoltaic cell array cannot meet the load demand. Sometimes an auxiliary power supply is needed to provide part of the power beyond the power supply capacity of the photovoltaic cell array. At this time, the DC power provided by the photovoltaic cell array is preferentially used, and the insufficient part is provided by the mains.

[0067] The operating frequency signal of the air conditioner is sent to the MCU control module. When the output of the photovoltaic cell array is less than the operating power required by the air conditioner, the DC power provided by the solar photovoltaic cell array is used first, and the insufficient part is provided by the city power.

[0068] The specific implementation method is that the mains contr...

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Abstract

The invention discloses a solar photovoltaic air conditioning system and a power supply method thereof. The solar photovoltaic air conditioning system structurally comprises a power supply module, air conditioning module and a solar photovoltaic air conditioning actuator. The power supply module comprises a photovoltaic cell array providing direct current output and a mains supply. The air conditioning module is internally provided with a compressor and a motor to achieve refrigeration or heating. The solar photovoltaic air conditioning actuator is connected to the power supply module and the air conditioning module, is connected to the mains module of the power supply module through a connection line and structurally comprises a compressor actuating module, an MCU (Microprogrammed Control Unit) control module, a mains control module and a human-computer interaction module. Compared with the prior art, the solar photovoltaic air conditioning system and the power supply method of the solar photovoltaic air conditioning system can achieve accurate control of air conditioning indoor temperature, improve the utilization rate of solar cells, solve the problem of the low utilization rate of photovoltaic cells of solar photovoltaic air conditioners in the prior art to achieve energy saving effects and are low in investment costs.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a solar photovoltaic air conditioning system with strong practicability, energy saving and environmental protection, and maximum utilization of photovoltaic power. Background technique [0002] The solar photovoltaic phenomenon was first discovered by the French in 1839, but the selenium solar cells developed 38 years later were not widely used because the conversion efficiency was too low (1%). With the continuous development of science and technology and the emergence of energy crisis, renewable energy represented by solar energy has been highly valued by the world, and the production process of solar cell materials has been greatly developed. In addition to monocrystalline silicon batteries, polycrystalline casting batteries have been developed rapidly. In addition, thin-film solar cells represented by amorphous silicon, cadmium telluride and copper indium selenide have also e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/02H02J9/04
CPCF24F5/0046F24F11/89F24F2005/0067H02J9/04Y02B10/70Y02B70/30Y04S20/20
Inventor 金德禄王红斌徐攀陈宪林
Owner SHANDONG LUCY NEW ENERGY TECH
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