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Air conditioner control method and device and air conditioner

A control method and technology of a control device, which are applied to control input involving air characteristics, space heating and ventilation control input, heating and ventilation control system, etc. Abnormal and other problems, to avoid triggering overcurrent protection, avoid impact, and improve the effect of tolerance

Active Publication Date: 2019-03-08
AUX AIR CONDITIONING LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of electricity users in the region, the voltage and frequency of the power grid in some areas fluctuate. When the voltage and frequency fluctuate suddenly, the current will be abnormal, which will cause the real-time power-off protection of the air-conditioning controller and affect the user experience.

Method used

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  • Air conditioner control method and device and air conditioner
  • Air conditioner control method and device and air conditioner
  • Air conditioner control method and device and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] The embodiment of the present invention provides an air conditioner 1, which is used to adjust the indoor temperature and at the same time ensure that the user has a comfortable use experience at any time. see figure 1 , is a functional block diagram of the air conditioner 1 provided by the embodiment of the present invention. The air conditioner 1 includes: a memory 3 , a controller 2 , a compressor 5 , a PFC control circuit 4 and an air conditioner control device 6 . Wherein, the controller 2 is electrically connected to the memory 3 , the PFC control circuit 4 and the compressor 5 . The air conditioner control device 6 includes at least one device that can be stored in the memory 3 in the form of software or firmware.

[0039] Wherein, the memory 3 can be used to store software programs and units, such as program instructions / units corresponding to the air-conditioning control device 6 and the method in the embodiment of the present invention, and the controller 2 ...

no. 2 example

[0044] With the increase of household appliances, the load on the power grid increases, and there will be different voltage or current fluctuations when the electrical appliances start and stop, as well as the power grid itself. When the voltage or current of the power grid fluctuates, it is easy to cause the air conditioner 1 to trigger overvoltage or overcurrent Protect, stop working.

[0045] This embodiment provides an air conditioner control method, which is applied to the air conditioner 1 and used to reduce the impact of power grid fluctuations on the operation of the air conditioner 1 . The air conditioner 1 includes a PFC control circuit 4 for adjusting the power factor of the air conditioner 1 . see figure 2 The air conditioner control method provided in this embodiment includes step S10 to step S30.

[0046] Step S10: Increase the gain of the DC voltage integral controller of the PFC control circuit 4 to adjust the response speed of the bus voltage.

[0047] The...

no. 3 example

[0066] see Figure 4 , Figure 4 An air conditioner control device 6 provided in a preferred embodiment of the present invention. It should be noted that the basic principles and technical effects of the air-conditioning control device 6 provided in this embodiment are the same as those of the above-mentioned embodiments. corresponding content.

[0067] This embodiment provides an air conditioner control device 6, the air conditioner control device 6 is applied to the air conditioner 1, and is used to prevent power failure protection of the air conditioner 1 caused by power grid fluctuations, the air conditioner 1 includes a PFC control circuit 4, and the air conditioner Control device 6 comprises:

[0068] The first adjustment unit 7 is used to increase the gain of the DC voltage integral controller of the PFC control circuit 4 to adjust the response speed of the bus voltage.

[0069] The gain of the DC voltage integral controller is positively correlated with the respons...

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Abstract

The invention provides an air conditioner control method and device and an air conditioner. The air conditioner control method is characterized in that on one hand, the gain of a direct-current voltage integral controller of a PFC control circuit is adjusted, thus the response speed of the bus voltage is adjusted, and overvoltage protection triggered by slow response speed is avoided; and on the other hand, the current limit value and the overcurrent protection value are increased, the voltage fluctuation range which can be borne by the air conditioner can be enlarged, and thus over-current protection can be avoided. In addition, when the air conditioner triggers the protection for multiple times, the running frequency of the air conditioner is reduced, so that the air conditioner can be matched with the load of a power grid, and the influence of the fluctuation of the power grid on the work of the air conditioner is avoided so as to improve the bearing capacity of the air conditioneron the fluctuation of the power grid.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device and an air conditioner. Background technique [0002] With the gradual development of air-conditioning technology, the use of air-conditioning has gradually become popular, and different users will have different special problems. The existing frequency conversion air-conditioning technology has certain requirements for the voltage and frequency of the power grid. At present, the frequency conversion air conditioner can meet the normal working requirements, the voltage is between 165V and 230V, and the frequency is stable at 50Hz and 60Hz. With the increase of electricity users in the region, the voltage and frequency of the power grid in some areas fluctuate. When the voltage and frequency fluctuate suddenly, the current will be abnormal, which will cause the real-time power-off protection of the air-conditioning controller a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F11/89F24F110/00
CPCF24F11/00F24F11/89F24F2110/00
Inventor 孙海波薄传海赵新荣黄宁熊刚
Owner AUX AIR CONDITIONING LTD BY SHARE LTD
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