CN111780375A - Energy-saving control method and system of air conditioner, storage medium and air conditioner - Google Patents

Energy-saving control method and system of air conditioner, storage medium and air conditioner Download PDF

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Publication number
CN111780375A
CN111780375A CN202010695871.5A CN202010695871A CN111780375A CN 111780375 A CN111780375 A CN 111780375A CN 202010695871 A CN202010695871 A CN 202010695871A CN 111780375 A CN111780375 A CN 111780375A
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China
Prior art keywords
frequency
rotating speed
air conditioner
compressor
current
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Granted
Application number
CN202010695871.5A
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Chinese (zh)
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CN111780375B (en
Inventor
殷辉
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Hisense Shandong Air Conditioning Co Ltd
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Hisense Shandong Air Conditioning Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air

Abstract

The invention discloses an energy-saving control method and system of an air conditioner, a storage medium and the air conditioner, comprising: acquiring the current outdoor environment temperature through a temperature sensor; comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold; controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds a refrigerant pipe according to the comparison result; the invention can control the compressor, the outdoor fan and the water pipe switch of the outdoor condenser according to the outdoor environment temperature, reduce the running frequency of the compressor and the rotating speed of the outdoor fan, thereby reducing the power consumption of the air conditioner.

Description

Energy-saving control method and system of air conditioner, storage medium and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an energy-saving control method and system of an air conditioner, a computer readable storage medium and the air conditioner.
Background
In the prior art, an energy-saving control method of an air conditioner controls a compressor and an outdoor fan of the air conditioner according to indoor and outdoor ambient temperatures to achieve the purpose of energy saving, but the existing energy-saving control method has poor energy-saving effect and is not beneficial to further reducing the power consumption of the air conditioner.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide an energy saving control method and system for an air conditioner, a computer readable storage medium, and an air conditioner, which can control the on/off of a compressor, an outdoor fan, and a water pipe in an outdoor condenser according to an outdoor environment temperature, reduce the operating frequency of the compressor, and reduce the rotation speed of the outdoor fan, thereby reducing the power consumption of the air conditioner.
In order to solve the above technical problem, an embodiment of the present invention provides an energy saving control method for an air conditioner, including:
acquiring the current outdoor environment temperature through a temperature sensor;
comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
Further, the controlling the operation frequency of the compressor of the air conditioner, the rotating speed of the outdoor fan and the on-off state of the water valve of the water pipe surrounding the refrigerant pipe in parallel according to the comparison result specifically includes:
if T is more than T1 and less than or equal to T2, the water valve is controlled to be opened, and the running frequency of the compressor is controlled to be a preset initial frequency F0Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is t, the first chamberAn external ambient temperature threshold of T1, the second outdoor ambient temperature threshold of T2;
if T2 is less than T, the water valve is controlled to be opened, and the operation frequency of the compressor is detected to be a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
Further, the controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result specifically includes:
when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
when X2 is not more than △ t, detecting that the running frequency of the compressor is the initial frequency F0And the rotating speed of the outdoor fan is a preset second rotating speed r2A third current required by the air conditioner; detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
Further, the controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current specifically includes:
if Ia<IbControlling the operation frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be the second rotating speed r2
If Ia>IbControlling the operation frequency of the air conditioner to be the third frequency F3Controlling the rotating speed of the outdoor fan to be the third rotating speed r3(ii) a Wherein the third current is IaThe fourth current is Ib
Further, the controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current specifically includes:
if Ic<IdThen controlling the operation frequency of the compressor to be the first frequency F1Controlling the rotating speed of the outdoor fan to be the initial rotating speed r0
If Ic>IdThen controlling the operation frequency of the compressor to be the second frequency F2Controlling the rotating speed of the outdoor fan to be the first rotating speed r1(ii) a Wherein the first current is IcThe second current is Id
In order to solve the above technical problem, an embodiment of the present invention further provides an energy saving control system for an air conditioner, including:
the outdoor environment temperature acquisition device is used for acquiring the current outdoor environment temperature through the temperature sensor;
the comparison device is used for comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and the energy-saving control device is used for controlling the running frequency of a compressor of the air conditioner, the rotating speed of the outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
Further, the energy-saving control device includes:
a comparison module for comparing the current outdoor ambient temperature T with the first outdoor ambient temperature threshold T1 and the second outdoor ambient temperature threshold T2;
the first energy-saving control module is used for controlling the water valve to be opened and controlling the running frequency of the compressor to be a preset initial frequency F if T is more than T1 and is less than or equal to T20Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is T, the first outdoor ambient temperature threshold is T1, and the second outdoor ambient temperature threshold is T2;
a second energy-saving control module, configured to control the water valve to open if T2 is less than T, and detect that the operating frequency of the compressor is a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
Further, the first energy saving control module comprises:
a first energy-saving control unit for controlling the energy-saving control unit when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
a second energy-saving control unit for detecting when the operation frequency of the compressor is the initial frequency F when X2 is not more than △ t0And the rotating speed of the outdoor fan is a preset second rotating speed r2A third current required by the air conditioner;detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls the device where the computer readable storage medium is located to execute any one of the above energy saving control methods of the air conditioner.
An embodiment of the present invention further provides an air conditioner, including an air conditioner body, a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the energy saving control method of the air conditioner described above when executing the computer program.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides an energy-saving control method and system of an air conditioner, a computer readable storage medium and the air conditioner, wherein the method comprises the following steps: acquiring the current outdoor environment temperature through a temperature sensor; comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold; controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds a refrigerant pipe according to the comparison result; the control device can control the water pipe switches in the compressor, the outdoor fan and the outdoor condenser according to the outdoor environment temperature, reduces the running frequency of the compressor and the rotating speed of the outdoor fan, and therefore reduces the power consumption of the air conditioner.
Drawings
Fig. 1 is a flowchart of a preferred embodiment of an energy saving control method of an air conditioner according to the present invention;
FIG. 2 is a block diagram of an energy saving control system for an air conditioner according to a preferred embodiment of the present invention;
FIG. 3 is a block diagram of a preferred embodiment of an air conditioner provided by the present invention;
fig. 4 is a block diagram of an air conditioner according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
An embodiment of the present invention provides an energy saving control method for an air conditioner, which is a flowchart of a preferred embodiment of the energy saving control method for the air conditioner provided by the present invention, as shown in fig. 1, and the method includes steps S11 to S13:
step S11, acquiring the current outdoor environment temperature through a temperature sensor;
step S12, comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and step S13, controlling the running frequency of the compressor of the air conditioner, the rotating speed of the outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
Specifically, the outdoor environment temperature is obtained through an outdoor environment temperature sensor, the outdoor environment temperature is compared with a first outdoor environment temperature threshold and a second outdoor environment temperature threshold, and the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe surrounding the refrigerant pipe in parallel are controlled according to a comparison result; the value range of the first outdoor environment temperature threshold value can be, but is not limited to, 25-30 ℃, and the value range of the second outdoor environment temperature threshold value can be, but is not limited to, not less than 35 ℃.
In another preferred embodiment, the controlling the operation frequency of the compressor of the air conditioner, the rotation speed of the outdoor fan, and the on/off state of the water valve of the water pipe surrounding the refrigerant pipe in parallel according to the comparison result specifically includes:
if T is more than T1 and less than or equal to T2, the water valve is controlled to be opened, and the running frequency of the compressor is controlled to be a preset initial frequency F0Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is T, the first outdoor ambient temperature threshold is T1, and the second outdoor ambient temperature threshold is T2;
if T2 is less than T, the water valve is controlled to be opened, and the operation frequency of the compressor is detected to be a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
Specifically, when T1 is more than T and less than or equal to T2, the water valve is controlled to be opened, and the running frequency of the compressor is controlled to be the initial frequency F0Comparing the temperature difference of the indoor and outdoor coil pipes obtained after M minutes with a first temperature difference threshold value and a second temperature difference threshold value, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; the flow direction of water in the water valve is opposite to the flow direction of a refrigerant in the refrigerant pipe, so that the heat exchange is increased; when T2 < T, the outdoor working condition is considered to be higher, and the air conditioner is providedThe outdoor fan, the compressor and the water valve are simultaneously opened to ensure the user experience in a high-temperature environment, after the system is stable, the water cooling system participates in heat exchange, the refrigeration effect is increased greatly, the water valve is controlled to be opened, and the operation frequency of the compressor is detected to be the first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0(ii) a Initial frequency F0The water valve of the water pipe surrounding the refrigerant pipe in parallel is switched off, and the air conditioner maintains the running state under the condition that the switch of the water valve is in the closed state, wherein the running frequency required by the compressor can be in a value range of 0-200 HZ; initial rotational speed r0The water-indicating valve switch is the operation rotating speed required by the outdoor fan when the air conditioner maintains the operation state under the closed state, and the value range can be but is not limited to 0-2000 revolutions; the value of the first temperature difference threshold value X1 is selected from but not limited to 0; the value range of the second temperature difference threshold value X2 can be selected from but is not limited to 1-2 ℃.
In the present embodiment, the first frequency F1The acquisition steps are as follows: first of all the compressor is set to an initial frequency F0Operation, lowering the operating frequency of the compressor to F in △ F stepsxObtaining the temperature difference of the indoor and outdoor coils after running for M minutes when △ t<At 0, continue to △ F to FyUntil △ t is more than or equal to 0 and less than X2, and taking the running frequency of the compressor when △ t is more than or equal to 0 and less than X2 as F1Wherein the value range of △ F can be but is not limited to 0-30 HZ, the value range of X2 can be but is not limited to 1-2 ℃, and the value range of M can be but is not limited to 0-20.
In the present embodiment, the first rotation speed r1The acquisition steps are as follows: when the compressor is at the first frequency F1Operation chamberRotating speed of outer fan is r0After running for N minutes, the rotating speed of the outdoor fan is reduced by △ r, and the rotating speed r is ensured at the momentxBecause the rotating speed is reduced, the outdoor heat exchange is reduced, △ t is not less than X2, when △ t is not less than X2, the outdoor wind speed is reduced too much, the compressor is required to be used for raising the frequency to make up for insufficient heat exchange, at the moment, the frequency is raised by △ F, after M minutes of operation, △ t is detected again until the rotating speed is not less than 0 and not more than △ t and less than X2, at the moment, the rotating speed of the outdoor fan is taken as the first rotating speed r1The operating frequency of the compressor being the second frequency F2Wherein, the value range of △ r can be but is not limited to 0-100 turns, and the value range of N can be but is not limited to 0-60.
It should be noted that the air conditioner is externally provided with a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe, the flow direction of water in the water valve is opposite to that of the refrigerant, the temperature of the water is far lower than that of the refrigerant at high temperature, and the flow directions are opposite, so that the temperature of the outer disc and the temperature of the inner disc can be well reduced, at the moment, the compressor can achieve better refrigeration output capacity without operating higher frequency, and the power saving effect is achieved. When the existing air conditioner has no water valve of water pipe surrounding the refrigerant pipe in parallel, the running frequency of the compressor is the initial frequency F0The rotating speed of the outdoor fan is the initial rotating speed r0It can be seen that the operating frequency of the compressor and the rotational speed of the outdoor fan of the present application are lower than the initial frequency F0And r0And the power consumption of the air conditioner is reduced.
In another preferred embodiment, the controlling the operating frequency of the compressor and the rotational speed of the outdoor fan according to the comparison result specifically includes:
when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
when X2 is not more than △ t, detecting that the running frequency of the compressor is the initial frequency F0And the rotating speed of the outdoor fan is a preset second rotating speed r2When the third electricity is needed by the air conditionerA stream; detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
Specifically, when Δ t is larger than or equal to X1 and smaller than X2, it is considered that indoor heat can be taken away by water in the water valve, and at this time, an outdoor fan does not need to be started, and only a refrigeration effect is realized by water cooling, and at this time, compared with an air conditioner without a water valve of a water pipe surrounding the refrigerant pipe in parallel, the outdoor fan does not need to be started, so that the operation power of the air conditioner is saved, and an energy-saving effect is achieved; when delta t is larger than or equal to X2, the refrigeration effect cannot be met only by water cooling, and the fan needs to be started at the moment.
In the present embodiment, the second rotation speed r2The operation frequency of the outdoor fan is increased from 0, the rotating speed of the outdoor fan is increased by △ r each time, and the wind speed is recorded as rxDetecting △ t after M minutes of operation, when △ t is more than or equal to X2, continuously increasing the rotating speed of the outdoor fan, increasing the rotating speed of the outdoor fan by △ r, wherein the rotating speed of the fan is ryAnd after M time of operation, detecting △ t until △ t is more than or equal to 0 and less than X2, and taking the operating speed of the fan as r2,0<r2<r0,r2Lower than r0And is beneficial to energy conservation.
In this embodiment, the third frequency F3The acquisition steps are as follows: the outdoor fan rotates at a second speed r2Running and the compressor at an initial frequency F0After N minutes of operation, the compressor frequency was reduced at △ F, which is FxThe frequency is reduced and will affect the output capacity, so the outdoor fan speed is increased at the same time to △ r, at this moment, the fan speed r is increasedzFrequency of compressor FxAfter M minutes of operation, △ t is detected until △ t is more than or equal to 0 and less than X2, and the operation speed of the fan is taken as r3The operating frequency of the compressor asF3Then, the state at this time is considered as the best capability state.
In another preferred embodiment, the controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current specifically includes:
if Ia<IbControlling the operation frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be the second rotating speed r2
If Ia>IbControlling the operation frequency of the air conditioner to be the third frequency F3Controlling the rotating speed of the outdoor fan to be the third rotating speed r3(ii) a Wherein the third current is IaThe fourth current is Ib
In this embodiment, the operating frequency of the compressor and the rotation speed of the outdoor fan are controlled according to the current, which is beneficial to further reducing the power consumption of the air conditioner.
In another preferred embodiment, the controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current specifically includes:
if Ic<IdThen controlling the operation frequency of the compressor to be the first frequency F1Controlling the rotating speed of the outdoor fan to be the initial rotating speed r0
If Ic>IdThen controlling the operation frequency of the compressor to be the second frequency F2Controlling the rotating speed of the outdoor fan to be the first rotating speed r1(ii) a Wherein the first current is IcThe second current is Id
The embodiment of the present invention further provides an energy saving control system for an air conditioner, which can implement all the processes of the energy saving control method for an air conditioner described in any one of the above embodiments, and the functions and technical effects of each device and module in the system are respectively the same as those of the energy saving control method for an air conditioner described in the above embodiment, and are not described herein again.
Referring to fig. 2, it is a block diagram of a preferred embodiment of an energy saving control system of an air conditioner according to the present invention, and the system includes:
an outdoor ambient temperature obtaining device 11, configured to obtain a current outdoor ambient temperature through a temperature sensor;
a comparing device 12, configured to compare the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and the energy-saving control device 13 is used for controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
Preferably, the energy saving control device 13 includes:
the first energy-saving control module is used for controlling the water valve to be opened and controlling the running frequency of the compressor to be a preset initial frequency F if T is more than T1 and is less than or equal to T20Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is T, the first outdoor ambient temperature threshold is T1, and the second outdoor ambient temperature threshold is T2;
a second energy-saving control module, configured to control the water valve to open if T2 is less than T, and detect that the operating frequency of the compressor is a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
Preferably, the first energy saving control module includes:
a first energy-saving control unit for controlling the energy-saving control unit when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
a second energy-saving control unit for detecting when the operation frequency of the compressor is the initial frequency F when X2 is not more than △ t0And the rotating speed of the outdoor fan is a preset second rotating speed r2A third current required by the air conditioner; detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
Preferably, the second energy-saving control unit is specifically configured to:
if Ia<IbControlling the operation frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be the second rotating speed r2
If Ia>IbControlling the operation frequency of the air conditioner to be the third frequency F3Controlling the rotating speed of the outdoor fan to be the third rotating speed r3(ii) a Wherein the third current is IaThe fourth current is Ib
Preferably, the second energy-saving control module is specifically configured to:
if Ic<IdThen controlling the operation frequency of the compressor to be the first frequency F1Controlling the rotating speed of the outdoor fan to be the initial rotating speed r0
If Ic>IdThen controlling the operation frequency of the compressor to be the second frequency F2Controlling the rotating speed of the outdoor fan to be the first rotating speed r1(ii) a Wherein the first current is IcThe second current is Id
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls the device where the computer readable storage medium is located to execute the energy saving control method of the air conditioner according to any of the above embodiments.
An embodiment of the present invention further provides an air conditioner, which is shown in fig. 3 and is a structural diagram of the air conditioner provided by the present invention, and the air conditioner includes a compressor 1, a water channel 2, a refrigerant channel 3, an air conditioner outdoor unit 4, a water control valve 5, a water receiving port 6, an intelligent control system 7, an outdoor ambient temperature sensor 8, an outdoor coil sensor 9, a throttling component 10, an air conditioner indoor unit 11, an indoor coil sensor 12, an indoor ambient temperature sensor 13, and a water storage tank 14.
Wherein, the water channel 2 is a water circulation system and is used for exchanging heat with the refrigerant; the refrigerant channel 3 is a refrigerant circulating system; the water control valve 5 is an intelligent control valve, has an opening or closing function, and blocks water or drains water from entering the water circulation system; a water receiving port 6, which is used for connecting with a port of tap water or other water source systems; the intelligent control system 7 is a control system and is used for realizing the function of processing and analyzing various parameters; the water storage tank 14 is a container for storing water after heat exchange with a refrigerant; the outdoor ambient temperature sensor 8 is a sensor for detecting the outdoor ambient temperature; the outdoor coil sensor 9 is a sensor for detecting the condensing temperature of the outdoor condenser; the indoor ambient temperature sensor 13 is a sensor that detects the indoor ambient temperature; the indoor coil sensor 12 is a sensor that detects the evaporation temperature of the indoor evaporator.
An embodiment of the present invention further provides an air conditioner, which is shown in fig. 4 and is a block diagram of a preferred embodiment of the air conditioner provided by the present invention, the air conditioner includes an air conditioner body 00, a processor 10, a memory 20, and a computer program stored in the memory 20 and configured to be executed by the processor 10, and the processor 10 implements the energy saving control method of the air conditioner according to any of the embodiments when executing the computer program.
Preferably, the computer program can be divided into one or more devices/modules (e.g., computer program, procedure 1, computer program 2,) which are stored in the memory 20 and executed by the processor 10 to accomplish the present invention. The one or more devices/modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program in the air conditioner.
The Processor 10 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor 10 may be any conventional Processor, the Processor 10 is a control center of the air conditioner, and various interfaces and lines are used to connect various parts of the air conditioner.
The memory 20 mainly includes a program storage area that may store an operating system, an application program required for at least one function, and the like, and a data storage area that may store related data and the like. In addition, the memory 20 may be a high speed random access memory, may also be a non-volatile memory, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, or the memory 20 may also be other volatile solid state memory devices.
It should be noted that the air conditioner may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the structural block diagram of fig. 4 is only an example of the air conditioner, and does not constitute a limitation of the air conditioner, and may include more or less components than those shown, or combine some components, or different components.
To sum up, the energy-saving control method and system for the air conditioner, the computer readable storage medium and the air conditioner provided by the embodiment of the invention acquire the current outdoor environment temperature through the temperature sensor; comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold; controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds a refrigerant pipe according to the comparison result; the control device can control the water pipe switches in the compressor, the outdoor fan and the outdoor condenser according to the outdoor environment temperature, reduces the running frequency of the compressor and the rotating speed of the outdoor fan, and therefore reduces the power consumption of the air conditioner.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. An energy-saving control method of an air conditioner is characterized by comprising the following steps:
acquiring the current outdoor environment temperature through a temperature sensor;
comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and controlling the running frequency of a compressor of the air conditioner, the rotating speed of an outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
2. The energy-saving control method of an air conditioner according to claim 1, wherein the controlling of the operating frequency of a compressor of the air conditioner, the rotational speed of an outdoor fan, and the on-off state of a water valve of a water pipe surrounding in parallel with a refrigerant pipe according to the comparison result specifically comprises:
if T is more than T1 and less than or equal to T2, the water valve is controlled to be opened, and the running frequency of the compressor is controlled to be a preset initial frequency F0Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is T, the first outdoor ambient temperature threshold is T1, and the second outdoor ambient temperature threshold is T2;
if T2 is less than T, the water valve is controlled to be opened, and the operation frequency of the compressor is detected to be a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when the operating frequency of the compressor is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
3. The energy-saving control method of an air conditioner according to claim 2, wherein the controlling the operation frequency of the compressor and the rotation speed of the outdoor fan according to the comparison result specifically comprises:
when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
when X2 is not more than △ t, detecting that the running frequency of the compressor is the initial frequency F0And the rotating speed of the outdoor fan is a preset second rotating speed r2A third current required by the air conditioner; detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
4. The energy-saving control method of an air conditioner according to claim 3, wherein the controlling the operation frequency of the compressor and the rotation speed of the outdoor fan according to the third current and the fourth current specifically comprises:
if Ia<IbControlling the operation frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be the second rotating speed r2
If Ia>IbControlling the operation frequency of the air conditioner to be the third frequency F3Controlling the rotating speed of the outdoor fan to be the third rotating speed r3(ii) a Wherein the third current is IaThe fourth current is Ib
5. The energy-saving control method of an air conditioner according to claim 2, wherein the controlling the operation frequency of the compressor and the rotation speed of the outdoor fan according to the first current and the second current specifically comprises:
if Ic<IdThen controlling the operation frequency of the compressor to be the first frequency F1Controlling the rotating speed of the outdoor fan to be the initial rotating speed r0
If Ic>IdThen controlling the operation frequency of the compressor to be the second frequency F2Controlling the rotation speed of the outdoor fan to be the first rotation speedr1(ii) a Wherein the first current is IcThe second current is Id
6. An energy-saving control system of an air conditioner, comprising:
the outdoor environment temperature acquisition device is used for acquiring the current outdoor environment temperature through the temperature sensor;
the comparison device is used for comparing the current outdoor environment temperature with a preset first outdoor environment temperature threshold and a preset second outdoor environment temperature threshold;
and the energy-saving control device is used for controlling the running frequency of a compressor of the air conditioner, the rotating speed of the outdoor fan and the on-off state of a water valve of a water pipe which is parallel to and surrounds the refrigerant pipe according to the comparison result.
7. The energy saving control method of an air conditioner according to claim 6, wherein the energy saving control means comprises:
a comparison module for comparing the current outdoor ambient temperature T with the first outdoor ambient temperature threshold T1 and the second outdoor ambient temperature threshold T2;
the first energy-saving control module is used for controlling the water valve to be opened and controlling the running frequency of the compressor to be a preset initial frequency F if T is more than T1 and is less than or equal to T20Comparing the temperature difference of the indoor and outdoor coil pipes obtained after a preset time period with a preset first temperature difference threshold value and a preset second temperature difference threshold value respectively, and controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the comparison result; wherein the current outdoor ambient temperature is T, the first outdoor ambient temperature threshold is T1, and the second outdoor ambient temperature threshold is T2;
a second energy-saving control module, configured to control the water valve to open if T2 is less than T, and detect that the operating frequency of the compressor is a preset first frequency F1And the rotating speed of the outdoor fan is a preset initial rotating speed r0A first current required by the air conditioner; detecting when said compression is occurringThe operating frequency of the machine is a preset second frequency F2And the rotating speed of the outdoor fan is a preset first rotating speed r1A second current required by the air conditioner; controlling the operating frequency of the compressor and the rotating speed of the outdoor fan according to the first current and the second current; wherein, 0<F1<F2<F0,0<r1<r0
8. The energy saving control method of an air conditioner according to claim 7, wherein the first energy saving control module comprises:
a first energy-saving control unit for controlling the energy-saving control unit when X1 is not more than △ t<X2, controlling the running frequency of the compressor to be the initial frequency F0Controlling the rotating speed of the outdoor fan to be 0, wherein the temperature difference of the indoor and outdoor coil pipes is △ t, the first temperature difference threshold value is X1, and the second temperature difference threshold value is X2;
a second energy-saving control unit for detecting when the operation frequency of the compressor is the initial frequency F when X2 is not more than △ t0And the rotating speed of the outdoor fan is a preset second rotating speed r2A third current required by the air conditioner; detecting when the operating frequency of the compressor is a preset third frequency F3And the rotating speed of the outdoor fan is a preset third rotating speed r3A fourth current required by the air conditioner; controlling the running frequency of the compressor and the rotating speed of the outdoor fan according to the third current and the fourth current; wherein, 0<F3<F0,0<r2<r3<r0
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program; wherein the computer program controls, when running, an apparatus in which the computer-readable storage medium is located to perform the energy saving control method of the air conditioner according to any one of claims 1 to 5.
10. An air conditioner, characterized by comprising an air conditioner body, a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the energy saving control method of the air conditioner according to any one of claims 1 to 5 when executing the computer program.
CN202010695871.5A 2020-07-17 2020-07-17 Energy-saving control method and system of air conditioner, storage medium and air conditioner Active CN111780375B (en)

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