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Method and device for controlling direct current air conditioner and air conditioner

An air conditioner and electric heating device technology, applied in the field of air conditioners, a method and device for controlling DC air conditioners, can solve the problems of field weakening control, unstable bus voltage, and waste of electric energy, and achieve accurate start and stop, saving The effect of electricity

Pending Publication Date: 2022-07-05
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2
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  • Abstract
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Problems solved by technology

[0005] When the air conditioner is in the heating operation process, due to the instability of the green power supply, there will be cases where the household voltage is lower than the typical value of 375V, resulting in insufficient stability of the bus voltage, so that the DC air conditioner frequently reaches the frequency increase limit, Thus entering the situation of field weakening control, especially when the DC air conditioner is heating and running, the field weakening function and the electric heating device are started at the same time, which greatly wastes electric energy and has poor applicability

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  • Method and device for controlling direct current air conditioner and air conditioner
  • Method and device for controlling direct current air conditioner and air conditioner
  • Method and device for controlling direct current air conditioner and air conditioner

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Embodiment Construction

[0021] In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0022] The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or s...

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Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a method for controlling a direct-current air conditioner, which comprises the following steps: under the condition of heating operation, judging whether a preset closing condition of an electric heating device is met or not; under the condition that the preset closing condition is met, the electric heating device is closed; wherein the preset closing condition comprises that the instruction voltage and the bus voltage of the compressor motor meet the frequency increasing limiting condition. In the heating operation process, the electric heating device is started and stopped by monitoring the conditions of the instruction voltage and the bus voltage of the compressor motor, and it is avoided that the electric heating device and field weakening control are carried out at the same time so as to adapt to the direct-current power generation trend. When the direct-current air conditioner operates in a heating mode, the power heating device is accurately started and stopped, and electric energy is greatly saved. The invention further discloses a device for controlling the direct-current air conditioner and the air conditioner.

Description

technical field [0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for controlling a DC air conditioner, and an air conditioner. Background technique [0002] At present, with the implementation of the goals of "carbon peaking" and "carbon neutrality", the development of new energy has entered a period of rapid development. The greening of energy and the development of DC power grids have given birth to the research and development of DC technology for household electricity. Home appliances are increasingly becoming the trend of development. However, due to the instability of green power, how to adapt DC appliances to green power and distributed DC power grids with DC characteristics has become an urgent problem to be solved. [0003] In order to satisfy the user's comfort, the air conditioner in the related art adds an electric heating device to perform automatic and flexible control in the heating mo...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/70F24F11/86F24F11/46
CPCF24F11/64F24F11/70F24F11/86F24F11/46F24F2221/34Y02B30/70
Inventor 曹壬艳高保华许国景刘聚科赵晓明徐贝贝牛绪雷
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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