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External fan rotating speed control method and device and computer storage medium

A speed control and external fan technology, which is applied in the field of external fan speed control and computer storage media, can solve the problem of inconsistent speed of the external fan and achieve the effect of precise speed control

Active Publication Date: 2019-01-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a method, device and computer storage medium for controlling the speed of an outdoor fan, so as to solve the problem that the speed of the outdoor fan required by the indoor unit is different from the actual speed when the outdoor fan works at a fixed speed during the energy efficiency test. The problem that the speed of the external fan does not match

Method used

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  • External fan rotating speed control method and device and computer storage medium
  • External fan rotating speed control method and device and computer storage medium
  • External fan rotating speed control method and device and computer storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0025] According to Embodiment 1 of the present invention, a method for controlling the rotational speed of an external fan is provided.

[0026] Such as figure 1 Shown is a flow chart of the method for controlling the outdoor fan according to the first embodiment of the present invention.

[0027] Step S110, after it is determined that the system enters a stable state, adjust the rotation speed of the external fan of the system several times to change the energy efficiency ratio of the system.

[0028] In this embodiment, the stable state means that the parameters of the system are stable.

[0029] In this embodiment, after the system enters a steady state, the rotation speed of the external fan is adjusted at regular intervals until the energy efficiency ratio of the system reaches the optimum.

[0030] Specifically, after the system is powered on, the system enters an initial state first, and enters a stable state after running stably for a first period of time in the ini...

Embodiment 2

[0053] This embodiment further describes the steps of determining that the system enters a stable state.

[0054] figure 2 It is a flow chart of steps for determining that the system enters a steady state according to the second embodiment of the present invention.

[0055] Step S210, power on and run the system.

[0056] Step S220, when the speed of the outdoor fan is adjusted to the first speed, monitor whether the temperature difference between the outdoor condensation temperature and the outdoor ambient temperature reaches a preset temperature difference value; if yes, execute step S230; if no, continue Monitor whether the temperature difference between the outdoor condensing temperature and the outdoor ambient temperature reaches the preset temperature difference value.

[0057] The first rotational speed is an empirical value or a value obtained through experiments. The full speed of the external fan is a known value, and 60% of the full speed can be set as the first...

Embodiment 3

[0065] This embodiment will further describe the steps of adjusting the speed of the external fan.

[0066] image 3 It is a flow chart of the steps of adjusting the rotation speed of the external fan according to the third embodiment of the present invention.

[0067] Step S310, after it is determined that the system enters a stable state, monitor whether the variation in power consumption of the outdoor fan at each adjustment interval is greater than or equal to the variation in power consumption of the compressor; if yes, execute step S320; if not, execute step S330.

[0068] The power consumption variation of the external fan is equal to the power consumption of the external fan at the end time of the adjustment interval minus the power consumption of the external fan at the start time.

[0069] The amount of change in power consumption of the compressor is equal to the power consumption of the compressor at the end time of the adjustment interval minus the power consumpt...

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Abstract

The invention discloses an external fan rotating speed control method and device and a computer storage medium. The method comprises the steps that after it is determined that the system enters a stable state, and the rotating speed of an external fan of the system is adjusted repeatedly, so that the energy efficiency ratio of the system is changed; according to the change of the energy efficiencyratio of the system, the energy efficiency ratio variable quantity of each adjusting interval is monitored; when it is monitored that the variable quantities of the energy efficiency ratios of everytwo adjacent adjusting intervals are in positive and negative change, the rotating speed of the external fan is stabilized at a rotating speed corresponding to the previous adjusting interval. The energy efficiency ratio of the system can be changed by adjusting the rotating speed of the external fan, and the energy efficiency change of the system can be monitored; the optimal rotating speed of the external fan is determined according to the energy efficiency change of the system, so that the rotating speed of the external fan is controlled more accurately, more rigorously and more scientific.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a method, device and computer storage medium for controlling the rotational speed of an outdoor fan. Background technique [0002] At present, when performing an energy efficiency test on an air conditioner, it is necessary to adjust the rotational speed of the external fan corresponding to the indoor unit so that the rotational speed of the external fan reaches the optimum test rotational speed of the indoor unit. [0003] The traditional way to adjust the speed of the outdoor fan is to control the speed of the outdoor fan through the wire controller or remote control, but the gear position of the outdoor fan set by the wire controller or remote control is fixed, and the speed of the outdoor fan will not be changed due to the needs of the indoor unit. , In this way, during the energy efficiency test, the external fan works at a fixed speed, and it often happens ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/871F24F11/64
CPCF24F11/64F24F11/871
Inventor 张瀛龙赵鹏刘警生汪建苏培焕赖桃辉黎汝令
Owner GREE ELECTRIC APPLIANCES INC
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