Solar air-conditioning system and control method thereof

An air-conditioning system, solar energy technology, applied in control/regulation systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problems of excess energy not being able to feed back to the grid, low air conditioning power level, and limited use occasions, etc. Achieve the effect of expanding the power level and use occasions of air conditioners, alleviating the tension of electric energy, and creating economic benefits

Active Publication Date: 2015-06-24
GREE ELECTRIC APPLIANCES INC
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  • Description
  • Claims
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Problems solved by technology

[0016] Aiming at the problems in related technologies that the excess energy output by solar cell arrays cannot be fed back to the grid, the cost of using batteries is too high, and the power level of air conditioners is small, the use of occasions is limited, and th

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  • Solar air-conditioning system and control method thereof
  • Solar air-conditioning system and control method thereof

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Embodiment Construction

[0043] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0044] image 3 It is a structural schematic diagram of a solar air conditioning system according to an embodiment of the present invention. Such as image 3 As shown, the system may include: a solar cell array 100; a photovoltaic converter 200 connected between the solar cell array 100 and the utility grid 400; an air conditioning unit 300 connected to the photovoltaic converter 200; wherein, The photovoltaic converter includes: a boost circuit 210, a rectification inverter grid-connected circuit 230 and a control circuit ( image 3 not shown), the control circuit is connected between the booster circuit 210 and the solar cell array 100, and the control circuit is used to send a maximum pow...

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Abstract

The invention discloses a solar air-conditioning system and a control method thereof. The solar air-conditioning system comprises a solar cell array, a photovoltaic converter and an air-conditioning unit. The photovoltaic converter comprises a booster circuit, a rectification and inversion grid-connected circuit and a control circuit, wherein the booster circuit is used for controlling the solar cell array to output the maximum power through maximum power output control signals, and the rectification and inversion grid-connected circuit is used for switching rectification and inversion grid-connected working states through state switching control signals, so that energy of a public electric network and energy of the solar cell array are used for supplying power to the air-conditioning unit, and the energy of the solar cell array is controlled to be fed back to the public electric network. By the adoption of the solar air-conditioning system and the control method of the solar air-conditioning system, the problems that excessive energy output by a solar cell array in the prior art can not be fed back the power grid and high costs are caused by the adoption of a storage battery are solved, and the effects that the excessive energy of solar power generation is fed back to the power grid, meanwhile, the power grades of an air conditioner are expanded, and the cost is reduced are achieved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a solar air conditioning system and a control method thereof. Background technique [0002] Such as figure 1 The shown multi-connected air conditioning system mainly includes solar battery array 100', DC / DC converter, AC / DC converter, air conditioning unit 300', storage battery 700' and single-phase power grid 400' and other parts. [0003] The DC / DC converter 301' is a DC-DC converter, a voltage converter that converts an input voltage and outputs a fixed voltage. The AC / DC converter 303' is an AC-DC converter for converting AC input into DC output. [0004] exist figure 1 In the multi-connected air-conditioning system shown, the solar cell array converts sunlight into direct current. After the direct current is converted by the DC / DC converter, the DC voltage is output to the air-conditioning unit. At the same time, the DC / DC converter can realize the solar cell panel. Maxim...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J9/00H02M3/155H02M7/797G05F1/67F24F11/00
CPCY02E10/56
Inventor 陈洪涛孙丰涛李辉程良意陈兴
Owner GREE ELECTRIC APPLIANCES INC
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