Off-network photovoltaic air-conditioning system and power supply control method thereof

A photovoltaic air conditioner and power supply control technology, which is applied in the field of electrical appliances, can solve the problems of low operating power level of air conditioners, low battery capacity, and reduced utilization of photovoltaic arrays, so as to achieve maximum, increase operating time, and improve utilization rate effect

Active Publication Date: 2015-04-08
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology

[0003] However, in practical applications, due to cost constraints, the capacity of the battery is generally not too large, or even basically less than the power capacity required for the normal operation of the air conditioner
Therefore, when battery power is used alone, the air conditioner can only run at a lower power level.
Moreover, in related schemes, once the output power of the photovoltaic array becomes too small to support the operation requirements of the air conditioner, the output of the photovoltaic

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  • Off-network photovoltaic air-conditioning system and power supply control method thereof
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[0036] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and are not intended to limit the invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplificat...

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Abstract

The invention provides a power supply control method for an off-network photovoltaic air-conditioning system. The off-network photovoltaic air-conditioning system comprises a photovoltaic array, a storage battery group and an air conditioner. The power supply control method comprises the following steps: judging working statuses of the photovoltaic array and the air conditioner; when the photovoltaic array is at a power supply state and the air conditioner is started, acquiring the output power of the photovoltaic array; judging whether the output power is matched with a required power for normal operation of the air conditioner; if the output power is not matched with the required power, controlling the photovoltaic array and the storage battery group to supply power to the air conditioner in parallel. According to the power supply control method for the off-network photovoltaic air-conditioning system, the utilization rate of the photovoltaic array can be increased; enough power can be supplied to the air conditioner under the condition of non-ideal illumination, further, the power level of the air conditioner cannot be reduced, and the air conditioner can be maintained to normally operate. The invention also provides the off-network photovoltaic air-conditioning system.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to an off-grid photovoltaic air-conditioning system and a power supply control method for the off-grid photovoltaic air-conditioning system. Background technique [0002] In remote areas without power grids or isolated islands far from the coast, if household appliances such as air conditioners are used, photovoltaic air conditioning systems with batteries are often used. During the day, the photovoltaic array generates power to supply the household air conditioner. When the air conditioner is not working, the electric energy generated by the photovoltaic array is stored in the battery for use at night or in rainy days. [0003] However, in practical applications, due to cost constraints, the capacity of the storage battery is generally not too large, or even basically less than the power capacity required by the air conditioner for normal operation. Therefore, when t...

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Application Information

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IPC IPC(8): F24F5/00F24F11/02H02J7/35
CPCF24F5/0046F24F11/30F24F2005/0064F24F2110/00H02J7/35Y02E10/56
Inventor 吴志鹏
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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