CN-121993890-A - Temperature and humidity control method and device of air conditioner and air conditioner

CN121993890ACN 121993890 ACN121993890 ACN 121993890ACN-121993890-A

Abstract

The invention provides a temperature and humidity control method of an air conditioner, a temperature and humidity control device and the air conditioner, wherein the temperature and humidity control method of the air conditioner comprises the steps of controlling the power supply mode of the air conditioner according to the power state of a photovoltaic power supply system of the air conditioner under the condition that the temperature and humidity control requirement is determined to comprise a dehumidification requirement, and controlling the operation frequency of the compressor of the air conditioner to be increased on the basis of the current operation frequency, wherein the power supply mode of the air conditioner comprises a pure photovoltaic power supply mode in which the photovoltaic power supply system is used for independently supplying power to the air conditioner and a photovoltaic hybrid power supply mode in which one of the energy storage power supply system and the power grid power supply system is matched with the photovoltaic power supply system to supply power to the air conditioner. Thus, when the dehumidification requirement is met, the photovoltaic power is utilized, that is, the air conditioner can realize the dehumidification function when utilizing the photovoltaic power, and the problem that the air conditioner in the related art cannot dehumidify the indoor environment when utilizing the electric energy of the photovoltaic power supply system is solved.

Inventors

Lv Kelei
XIN TAO
Niu Zhaoxue
SUN ZHIGUO
ZHAO YAN

Assignees

青岛海尔空调器有限总公司

Dates

Publication Date: 20260508
Application Date: 20260211

Claims (10)

1. The temperature and humidity control method of the air conditioner is characterized by comprising the following steps: Acquiring a temperature and humidity regulation requirement; Under the condition that the temperature and humidity regulation requirement comprises a dehumidification requirement, controlling a power supply mode of an air conditioner according to the power state of a photovoltaic power supply system of the air conditioner, and controlling the operation frequency of a compressor of the air conditioner to be increased on the basis of the current operation frequency, wherein the power supply mode of the air conditioner comprises a pure photovoltaic power supply mode and a photovoltaic hybrid power supply mode, the photovoltaic power supply mode is used for independently supplying power to the air conditioner by the photovoltaic power supply system, and the photovoltaic hybrid power supply mode is used for supplying power to the air conditioner by matching one of an energy storage power supply system and a power grid power supply system with the photovoltaic power supply system.
2. The method according to claim 1, wherein, in the case where it is determined that the temperature and humidity adjustment requirement is only dehumidification, the controlling the power supply mode of the air conditioner according to the power state of the photovoltaic power supply system of the air conditioner and controlling the operation frequency of the compressor of the air conditioner to increase on the basis of the current operation frequency includes: Controlling the power supply mode of the air conditioner to be kept to be the pure photovoltaic power supply mode; acquiring real-time power generation power of the photovoltaic power supply system; Determining a first operating frequency according to the real-time power generation, wherein the first operating frequency is the maximum operating frequency of the compressor allowed by the real-time power generation; controlling the operating frequency of the compressor to increase to the first operating frequency.
3. The method for controlling the temperature and humidity of an air conditioner according to claim 2, further comprising: and controlling the rotating speed of the indoor fan of the air conditioner to be reduced on the basis of the current rotating speed.
4. The method for controlling temperature and humidity of an air conditioner according to claim 1, wherein, in the case of determining that the temperature and humidity adjustment requirement is to be dehumidified and cooled, the controlling the power supply mode of the air conditioner according to the power state of the photovoltaic power supply system of the air conditioner and controlling the operation frequency of the compressor of the air conditioner to be increased based on the current operation frequency comprises: acquiring a second operating frequency, wherein the second operating frequency is the maximum operating frequency of the compressor allowed by the current ring temperature; determining the feasibility of increasing the operating frequency of the compressor to the second operating frequency in the pure photovoltaic power supply mode according to the power state of the photovoltaic power supply system and the second operating frequency; In the case that it is determined that the power state of the photovoltaic power supply system allows the operation frequency of the compressor to be increased to the second operation frequency, controlling the power supply mode of the air conditioner to be maintained as the pure photovoltaic power supply mode, and controlling the operation frequency of the compressor to be increased to the second operation frequency.
5. The method for controlling temperature and humidity of an air conditioner according to claim 4, wherein the controlling the power supply mode of the air conditioner according to the power state of the photovoltaic power supply system of the air conditioner and controlling the operation frequency of the compressor of the air conditioner to be increased based on the current operation frequency further comprises: And under the condition that the power state of the photovoltaic power supply system does not allow the operation frequency of the compressor to be increased to the second operation frequency, controlling the power supply mode of the air conditioner to be switched to the photovoltaic hybrid power supply mode, and controlling the operation frequency of the compressor to be increased to the second operation frequency.
6. The method of controlling temperature and humidity of an air conditioner according to claim 5, wherein after the controlling the operation frequency of the compressor to be increased to the second operation frequency, further comprising: Acquiring the indoor environment temperature corresponding to the air conditioner; And controlling the power supply mode of the air conditioner to be switched to the pure photovoltaic power supply mode under the condition that the indoor environment temperature is determined to be reduced to be lower than the target temperature and the difference value between the target temperature and the indoor environment temperature is larger than or equal to a preset difference value.
7. The method according to claim 1, wherein, when it is determined that the temperature and humidity adjustment requirement is that only cooling is required, the rotational speed of the indoor fan of the air conditioner is controlled to be increased based on the current rotational speed, and the compressor is controlled to maintain the current operating frequency.
8. The method for controlling temperature and humidity of an air conditioner according to claim 7, wherein the controlling the rotational speed of the indoor fan of the air conditioner to be increased based on the current rotational speed comprises: Acquiring the indoor environment temperature corresponding to the air conditioner; determining a difference value between the indoor environment temperature and the target temperature according to the indoor environment temperature and the target temperature; Determining a rotation speed increasing value of the indoor fan according to the difference value between the indoor environment temperature and the target temperature; And controlling the rotating speed of the indoor fan to increase the rotating speed increasing value on the basis of the current rotating speed according to the rotating speed increasing value.
9. A temperature and humidity control device of an air conditioner, comprising: the acquisition module is used for acquiring the temperature and humidity regulation requirement; The control module is used for switching the power supply mode of the air conditioner according to the power state of a photovoltaic power supply system of the air conditioner under the condition that the temperature and humidity regulation requirement is determined to comprise a dehumidification requirement, and controlling the operation frequency of a compressor of the air conditioner to be increased on the basis of the current operation frequency.
10. An air conditioner capable of performing the temperature and humidity control method of an air conditioner according to any one of claims 1 to 8 or comprising the temperature and humidity control apparatus of an air conditioner according to claim 9.

Description

Temperature and humidity control method and device of air conditioner and air conditioner Technical Field The present invention relates to the field of air conditioners, and in particular, to a temperature and humidity control method and device for an air conditioner. Background With the increasing global awareness of energy conservation, emission reduction and environmental protection, the utilization of clean energy such as solar energy has become an important trend in technical development. In the air conditioning field, the solar air conditioner is taken as an innovative product combining the photovoltaic power generation technology and the traditional air conditioning technology, and the solar energy is utilized to drive the air conditioner compressor and other electric components to operate, so that the dependence on the commercial power can be effectively reduced, the consumption of fossil energy is reduced, and the solar air conditioner has remarkable economic benefit and environmental protection value. However, the solar air conditioner in the prior art has a certain limitation in design, and when the solar air conditioner utilizes the electric energy of the photovoltaic power supply system, the control system of the solar air conditioner can only realize single regulation and control of the temperature of the indoor environment, and cannot dehumidify the indoor environment. When the system receives a dehumidification instruction or a cooling and dehumidification dual instruction, the air conditioner automatically determines that the photovoltaic power cannot meet the complex requirement, automatically cuts off the power supply of the photovoltaic power supply system and switches to the power supply by the mains supply system. Therefore, the air conditioner can clearly utilize clean and free solar energy, but has to consume commercial power to meet the dehumidification control requirement of users. Not only the original design purpose of photovoltaic power supply is violated, the overall energy-saving benefit and economy of the product are reduced, but also the advantages of solar energy serving as a core energy source are not fully exerted, and the green energy-saving experience of a user is influenced. Therefore, how to solve the problem that the air conditioner in the related art cannot dehumidify the indoor environment when using the electric energy of the photovoltaic power supply system is an important technical problem to be solved by those skilled in the art. Disclosure of Invention The invention provides a temperature and humidity control method and device of an air conditioner and the air conditioner, which are used for solving the defect that the air conditioner in the related art cannot dehumidify an indoor environment when utilizing electric energy of a photovoltaic power supply system. The invention provides a temperature and humidity control method of an air conditioner, comprising the following steps: Acquiring a temperature and humidity regulation requirement; Under the condition that the temperature and humidity regulation requirement comprises a dehumidification requirement, controlling a power supply mode of an air conditioner according to the power state of a photovoltaic power supply system of the air conditioner, and controlling the operation frequency of a compressor of the air conditioner to be increased on the basis of the current operation frequency, wherein the power supply mode of the air conditioner comprises a pure photovoltaic power supply mode and a photovoltaic hybrid power supply mode, the photovoltaic power supply mode is used for independently supplying power to the air conditioner by the photovoltaic power supply system, and the photovoltaic hybrid power supply mode is used for supplying power to the air conditioner by matching one of an energy storage power supply system and a power grid power supply system with the photovoltaic power supply system. By the arrangement, whether the power of the photovoltaic power supply system is completely sufficient or not, the photovoltaic power can be ensured to be utilized preferentially and maximally when the dehumidification function is executed, that is, the air conditioner can realize the dehumidification function when the photovoltaic power is utilized, and the problem that the air conditioner in the related art cannot dehumidify the indoor environment when the electric energy of the photovoltaic power supply system is utilized is solved. According to the temperature and humidity control method of the air conditioner provided by the invention, under the condition that the temperature and humidity control requirement is determined to be only required to be dehumidified, the power supply mode of the air conditioner is controlled according to the power state of the photovoltaic power supply system of the air conditioner, and the operation frequency of the compressor of the air conditioner is controlled to be increased on