CN112762642B - Speed driver, electric appliance, speed driver control method, and storage medium - Google Patents
Speed driver, electric appliance, speed driver control method, and storage medium Download PDFInfo
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- CN112762642B CN112762642B CN201911000164.3A CN201911000164A CN112762642B CN 112762642 B CN112762642 B CN 112762642B CN 201911000164 A CN201911000164 A CN 201911000164A CN 112762642 B CN112762642 B CN 112762642B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a speed driver, an electric appliance, a control method of the speed driver and a computer readable storage medium. The speed driver is used for selecting the first rotating speed or the second rotating speed according to the requirement information and outputting the power supply signal corresponding to the first rotating speed or the second rotating speed, and the speed driver can only output the power supply signal corresponding to the first rotating speed or the second rotating speed, so that the condition that the fixed-frequency compressor is frequently started and stopped under different refrigeration requirements is improved by using the variable-frequency compressor, the service life of the compressor is prolonged, meanwhile, the speed driver is only used for selecting the first rotating speed or the second rotating speed, compared with the existing variable-frequency drive control method, the algorithm is relatively simple, the requirement on hardware is low, and the cost of the controller is convenient to control.
Description
Technical Field
The present invention relates to the field of variable speed control technologies, and in particular, to a speed driver, an electrical appliance, a method for controlling a speed driver, and a computer-readable storage medium.
Background
Refrigeration equipment such as refrigerator when the first circular telegram, the refrigeration demand of initial start is great, after operation a period, is used for maintaining the refrigeration demand of setting for the temperature and descends, for the constant frequency compressor that the refrigerator used, the constant frequency compressor can start the operation under the great condition of refrigeration demand, and when the refrigeration demand descends, control constant frequency compressor stops, and above-mentioned control has following drawback, and the number of times is stopped to opening of constant frequency compressor is more, causes the life decline of constant frequency compressor.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.
To this end, a first aspect of the invention provides a speed drive.
In a second aspect of the invention, an appliance is provided.
A third aspect of the present invention is to provide a control method of a velocity driver.
A fourth aspect of the present invention is to provide a computer-readable storage medium.
In view of the above, according to a first aspect of the present invention, there is provided a speed driver for selecting a first rotation speed or a second rotation speed according to demand information and outputting a power supply signal corresponding to the first rotation speed or the second rotation speed.
The speed driver selects the first rotating speed or the second rotating speed according to the demand information after receiving the demand information, and outputs the power supply signal corresponding to the first rotating speed or the second rotating speed to supply the power to the motor to run.
In addition, the speed driver in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the speed driver is specifically configured to: determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotation speed; determining that the demand information is smaller than a demand threshold value, and outputting a power supply signal corresponding to the second rotating speed; wherein the first rotational speed is greater than the second rotational speed.
In the technical scheme, a power supply signal corresponding to a rotating speed is output according to a comparison result of received demand information and a demand threshold value, so that a motor runs according to the corresponding rotating speed, specifically, it is determined that the demand information is greater than or equal to the demand threshold value, that is, a current received demand is large, the power supply signal corresponding to a first rotating speed is output, so that the motor outputs according to the first rotating speed to meet the demand information, and similarly, when the demand information is determined to be smaller than the demand threshold value, a power supply signal corresponding to a second rotating speed is output, wherein the second rotating speed is smaller than the first rotating speed, so that the power consumption of the motor is reduced while the demand information is maintained.
In any of the above solutions, the speed driver comprises: the first input end of the inverter device is configured to receive a direct current signal, and the first output end of the inverter device is configured to be connected with the motor; the first input end of the control device is configured to receive the demand information, the first output end of the control device is connected with the inverter device, and the control device is configured to output a control signal corresponding to the first rotating speed and/or the second rotating speed to the inverter device so that the inverter device outputs an alternating current signal of power supply frequency corresponding to the first rotating speed and/or the second rotating speed.
In this technical scheme, speed driver includes inverter and the controlling means who is connected with inverter, and wherein, controlling means receives demand information control inverter output and first rotational speed and/or the second rotational speed corresponds the alternating current signal of power supply frequency, and speed driver has integrateed promptly and has got the electricity, control, three parts of power supply for speed driver height is integrated, is convenient for miniaturize.
In any of the above solutions, the speed driver further includes: and the input end of the rectifying device is configured to be connected with an alternating current power supply, and the output end of the rectifying device is connected with the first input end of the inverter device and used for outputting a direct current signal to the inverter device.
In this technical scheme, speed driver still includes fairing, and wherein, fairing's input is configured to connect alternating current power supply, and fairing's output is connected with inverter's first input, and it can be understood that speed driver can direct connection to alternating current power supply to output DC signal to inverter, supply power to the motor, speed driver integrated speed driver promptly, realized getting high integrations of devices such as electricity, rectification, control, power supply, be convenient for the miniaturization.
In a second aspect of the invention, an electrical appliance is presented, comprising: a motor; a velocity driver as claimed in any one of the preceding claims.
In the technical scheme, the electric appliance provided by the invention comprises a motor and any one of the speed drivers, wherein the speed driver supplies power to the motor, so that the motor can operate at a first rotating speed or a second rotating speed to meet different requirements of a demand signal, and the speed driver can only output a power supply signal corresponding to the first rotating speed or the second rotating speed, so that the condition that a fixed-frequency compressor is frequently started and stopped under different refrigeration requirements is improved by using a variable-frequency compressor, the service life of the compressor is prolonged, meanwhile, the speed driver is only used for selectively outputting the first rotating speed or the second rotating speed, and compared with the existing variable-frequency drive control method, the method has the advantages that the algorithm is relatively simple, the requirement on hardware is low, and the cost of a controller is conveniently controlled.
In the above technical solution, the electric appliance is an air conditioning device, and the speed driver is further configured to: receiving volume information and heat dissipation parameters of a space where air conditioning equipment is located and displacement information of a motor; and determining the first rotating speed and the second rotating speed according to the volume information of the space where the air conditioning equipment is located, the heat dissipation parameter, the displacement information of the motor and a demand threshold.
In the technical scheme, the electric appliance is air conditioning equipment, the speed driver determines a first rotating speed and a second rotating speed according to the volume information, the heat dissipation parameter, the displacement information of the motor and a requirement threshold of the space where the air conditioning equipment is located after receiving the volume information and the heat dissipation parameter of the space where the air conditioning equipment is located and the displacement information of the motor so as to realize setting of the first rotating speed and the second rotating speed, and meanwhile, the first rotating speed and the second rotating speed determined according to the parameters are related to the requirement threshold, so that the motor can realize regulation of one or more of temperature, humidity and pollutant particle concentration according to the fastest speed at the first rotating speed, and when the second rotating speed is adopted, one or more of the temperature, the humidity and the pollutant particle concentration of the space where the air conditioning equipment is located can be maintained within a certain range.
The air conditioning equipment comprises an air conditioner, a humidifier, a fresh air machine and the like.
In the above technical scheme, the electrical apparatus is temperature regulation case, and the speed driver still is used for: receiving volume information and heat dissipation parameters of a temperature adjusting box and displacement information of a motor; and determining a first rotating speed and a second rotating speed according to the volume information, the heat dissipation parameter, the displacement information and the demand threshold of the temperature adjusting box.
In the technical scheme, the electric appliance is a temperature adjusting box, the speed driver determines a first rotating speed and a second rotating speed according to the volume information, the heat dissipation parameter, the displacement information of the motor and a requirement threshold value of the space where the air conditioning equipment is located after receiving the volume information and the heat dissipation parameter of the space where the air conditioning equipment is located and the displacement information of the motor so as to realize setting of the first rotating speed and the second rotating speed, meanwhile, the first rotating speed and the second rotating speed determined according to the parameters are related to the requirement threshold value, so that the motor can realize adjustment of one or more of temperature, humidity and pollutant particle concentration at the fastest speed at the first rotating speed, and when the second rotating speed is adopted, one or more of the temperature, the humidity and the pollutant particle concentration in the space in the temperature adjusting box can be maintained within a certain range.
In the above technical scheme, the temperature adjusting box is a refrigerator.
In any of the above technical solutions, the first rotation speed is greater than or equal to 3500 revolutions/minute and less than or equal to 4500 revolutions/minute; the second speed is greater than or equal to 1200 revolutions per minute and less than or equal to 1800 revolutions per minute.
In any of the above technical solutions, the demand information includes a cooling demand or a heating demand.
In a third aspect of the present invention, a method for controlling a speed driver is provided, comprising: receiving demand information; and selecting the first rotating speed or the second rotating speed according to the requirement information, and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed to the motor.
The control method of the speed driver provided by the invention selects the first rotating speed or the second rotating speed according to the demand information after receiving the demand information, and outputs the power supply signal corresponding to the first rotating speed or the second rotating speed to supply power to the motor to run.
In addition, the control method of the speed driver in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the step of selecting the first rotation speed or the second rotation speed according to the demand information, and outputting the power supply signal corresponding to the first rotation speed or the second rotation speed to the motor specifically includes: determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotating speed to the motor; determining that the demand information is smaller than a demand threshold value, and outputting a power supply signal corresponding to the second rotating speed to the motor; wherein the first rotational speed is greater than the second rotational speed.
In the technical scheme, a power supply signal corresponding to a rotating speed is output according to a comparison result of received demand information and a demand threshold value, so that a motor runs according to the corresponding rotating speed, specifically, it is determined that the demand information is greater than or equal to the demand threshold value, that is, a current received demand is large, the power supply signal corresponding to a first rotating speed is output, so that the motor outputs according to the first rotating speed to meet the demand information, and similarly, when the demand information is determined to be smaller than the demand threshold value, a power supply signal corresponding to a second rotating speed is output, wherein the second rotating speed is smaller than the first rotating speed, so that the power consumption of the motor is reduced while the demand information is maintained.
In any of the above technical solutions, the method further comprises: determining that the motor runs at a first rotating speed, and acquiring current demand information; and outputting a power supply signal corresponding to the first rotating speed to the motor or outputting a power supply signal corresponding to the second rotating speed to the motor according to the comparison result of the current demand information and the demand threshold.
In the technical scheme, after the motor is determined to operate at the first rotating speed, the requirement information received by the speed driver changes after the motor operates, so that the current requirement information is obtained, and according to the comparison result of the current requirement information and the requirement threshold, a power supply signal corresponding to the first rotating speed is output to the motor or a power supply signal corresponding to the second rotating speed is output to the motor, so that the dynamic control of the rotating speed of the motor is realized according to the requirement information, the motor is ensured to output as required, and the energy consumption is reduced.
In a fourth aspect of the invention, a computer-readable storage medium is proposed, in which a computer program is stored, which computer program, when executed, realizes the steps of the control method of a velocity driver as defined in any one of the above.
The present invention provides a computer-readable storage medium, wherein a computer program stored in the computer-readable storage medium implements the steps of the method for controlling any one of the speed drivers when running, so that the method has all the beneficial technical effects of the method for controlling any one of the speed drivers, and is not described herein again.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic diagram of the connection of a speed drive according to one embodiment of the invention;
FIG. 2 shows a schematic block diagram of an appliance according to one embodiment of the present invention;
FIG. 3 shows a flow diagram of a method of controlling a velocity driver according to one embodiment of the invention;
fig. 4 shows a flow diagram of a control method of a velocity driver according to another embodiment of the invention.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
In one embodiment of the present invention, as shown in fig. 1, a speed driver 100 is provided, wherein the speed driver 100 is configured to select a first rotation speed or a second rotation speed according to the requirement information, and output a power supply signal corresponding to the first rotation speed or the second rotation speed.
After receiving the demand information, the speed driver 100 provided by the invention selects the first rotating speed or the second rotating speed according to the demand information, and outputs the power supply signal corresponding to the first rotating speed or the second rotating speed to operate the power supply machine, because the speed driver 100 can only output the power supply signal corresponding to the first rotating speed or the second rotating speed, the condition that the fixed-frequency compressor is frequently started and stopped under different refrigeration demands is improved by using the variable-frequency compressor, so that the service life of the compressor is prolonged, meanwhile, the speed driver 100 is only used for selecting to output the first rotating speed or the second rotating speed, compared with the existing variable-frequency drive control method, the algorithm is relatively simple, the requirement on hardware is low, and the cost of the controller is convenient to control.
Further, since the speed driver 100 does not need to perform data processing as in the case of variable frequency drive control, the time for selecting the first rotational speed or the second rotational speed for output under different requirements is short, and instantaneous control of the motor is realized.
In one embodiment thereof, the velocity driver 100 is specifically configured to: determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotation speed; determining that the demand information is smaller than a demand threshold value, and outputting a power supply signal corresponding to the second rotating speed; wherein the first rotational speed is greater than the second rotational speed.
In this embodiment, a power supply signal corresponding to a rotation speed is output according to a comparison result of the received demand information and the demand threshold value, so that the motor operates at the corresponding rotation speed, specifically, it is determined that the demand information is greater than or equal to the demand threshold value, that is, the currently received demand is greater, and a power supply signal corresponding to a first rotation speed is output so that the motor outputs at the first rotation speed to satisfy the demand information.
In one embodiment thereof, the velocity driver 100 includes: the inverter device 102, a first input end of the inverter device 102 is configured to receive a direct current signal, and a first output end of the inverter device 102 is configured to be connected with a motor; the first input end of the control device 104 is configured to receive the demand information, the first output end of the control device 104 is connected with the inverter device 102, and the control device 104 is configured to output a control signal corresponding to the first rotating speed and/or the second rotating speed to the inverter device 102, so that the inverter device 102 outputs an alternating current signal of a power supply frequency corresponding to the first rotating speed and/or the second rotating speed.
The first output end of the inverter 102 has ports with the same number of phases as the connected motor, and if the motor is a three-phase motor, the first output end has three ports.
In this embodiment, the speed driver 100 includes an inverter device 102 and a control device 104 connected to the inverter device 102, wherein the control device 104 receives the requirement information to control the inverter device 102 to output an ac electrical signal with a power supply frequency corresponding to the first rotational speed and/or the second rotational speed, that is, the speed driver 100 integrates three parts of power taking, control and power supply, so that the speed driver 100 is highly integrated and is convenient for miniaturization.
In one embodiment thereof, the velocity driver 100 further comprises: a rectifying device 106, an input terminal of the rectifying device 106 is configured to be connected to an ac power source (L and N, where L is a live line and N is a neutral line), and an output terminal of the rectifying device 106 is connected to a first input terminal of the inverter device 102 for outputting a dc electrical signal to the inverter device 102.
In this embodiment, the speed driver 100 further includes a rectifying device 106, wherein an input end of the rectifying device 106 is configured to be connected to an ac power source, and an output end of the rectifying device 106 is connected to a first input end of the inverter device 102, it can be understood that the speed driver 100 may be directly connected to the ac power source, and output a dc electrical signal to the inverter device 102 to supply power to the motor, that is, the speed driver 100 integrates the speed driver 100, so that high integration of power taking, rectifying, controlling, power supplying and other devices is achieved, and miniaturization is facilitated.
Example two
In an embodiment proposed by the present invention, as shown in fig. 2, there is proposed an electrical appliance 200 comprising: a motor 202; a velocity driver 100 as in any above.
The motor 202 receives a power supply signal corresponding to the first rotation speed or the second rotation speed output by the speed driver 100, so as to operate according to the first rotation speed or the second rotation speed.
In this embodiment, the electric appliance 200 according to the present invention includes the motor 202 and any one of the speed drivers 100, wherein the speed driver 100 supplies power to the motor 202, so that the motor 202 operates at the first rotation speed or the second rotation speed to meet different requirements of the demand signal, and since the speed driver 100 can only output the power supply signal corresponding to the first rotation speed or the second rotation speed, the variable frequency compressor is used to improve the condition that the fixed frequency compressor is frequently started and stopped at different refrigeration requirements, thereby improving the service life of the compressor, and meanwhile, the speed driver 100 is only used to selectively output the first rotation speed or the second rotation speed.
In one embodiment, the motor 202 is a three-phase permanent magnet synchronous motor compressor.
In one embodiment, the appliance 200 is an air conditioning device, and the speed driver 100 is further configured to: receiving volume information and heat dissipation parameters of a space where the air conditioning equipment is located, and displacement information of the motor 202; the first rotation speed and the second rotation speed are determined according to the volume information of the space where the air conditioning device is located, the heat dissipation parameter, the displacement information of the motor 202, and the demand threshold.
In this embodiment, the electrical appliance 200 is an air conditioning device, and after receiving the volume information and the heat dissipation parameter of the space where the air conditioning device is located and the displacement information of the motor 202, the speed driver 100 determines the first rotation speed and the second rotation speed according to the volume information, the heat dissipation parameter of the space where the air conditioning device is located, the displacement information of the motor 202 and the demand threshold, so as to implement setting of the first rotation speed and the second rotation speed, and meanwhile, the first rotation speed and the second rotation speed determined according to the above parameters are related to the demand threshold, so that it is ensured that the motor 202 can implement adjustment of one or more of temperature, humidity and pollutant particle concentration at the fastest speed at the first rotation speed, and at the second rotation speed, one or more of temperature, humidity and pollutant particle concentration at the space where the air conditioning device is located can be maintained within a certain range.
The air conditioning equipment comprises an air conditioner, a humidifier, a fresh air machine and the like.
In one embodiment, taking the temperature as an example to determine the demand information, when an absolute difference between the ambient temperature of the space where the air conditioning equipment is located and the set temperature of the air conditioning equipment is greater than a temperature threshold, the motor 202 is controlled to operate at a first rotation speed, and when the absolute difference between the ambient temperature of the space where the air conditioning equipment is located and the set temperature of the air conditioning equipment is less than or equal to the temperature threshold, the motor 202 is controlled to operate at a second rotation speed.
In an embodiment of the method, for example, the humidity is used to determine the demand information, when an absolute difference between an ambient humidity of a space where the air conditioning equipment is located and a set humidity of the air conditioning equipment is greater than a humidity threshold, the motor 202 is controlled to operate at a first rotation speed, and when the absolute difference between the ambient humidity of the space where the air conditioning equipment is located and the set humidity of the air conditioning equipment is less than or equal to the humidity threshold, the motor 202 is controlled to operate at a second rotation speed, so as to control the ambient humidity to be below the humidity threshold.
In one embodiment, taking the air particulate matter concentration as an example to determine the demand information, when the absolute difference between the ambient air particulate matter concentration in the space where the air conditioning equipment is located and the set air particulate matter concentration of the air conditioning equipment is greater than the air particulate matter concentration threshold, the motor 202 is controlled to operate at a first rotation speed, the absolute difference between the ambient air particulate matter concentration in the space where the air conditioning equipment is located and the set air particulate matter concentration of the air conditioning equipment is less than or equal to the air particulate matter concentration threshold, and the motor 202 is controlled to operate at a second rotation speed to control the air particulate matter concentration to be below the air particulate matter concentration threshold.
In one embodiment, the demand information may also be determined according to the content of a certain gas component in the air.
In one embodiment, the appliance 200 is a thermostat, and the speed driver 100 is further configured to: receiving volume information and heat dissipation parameters of the temperature adjusting box and displacement information of the motor 202; the first rotating speed and the second rotating speed are determined according to the volume information of the temperature adjusting box, the heat dissipation parameter, the displacement information of the motor 202 and the demand threshold.
In this embodiment, the electrical appliance 200 is a temperature adjustment box, and after receiving the volume information and the heat dissipation parameter of the space where the air conditioning equipment is located and the displacement information of the motor 202, the speed driver 100 determines the first rotation speed and the second rotation speed according to the volume information, the heat dissipation parameter of the space where the air conditioning equipment is located, the displacement information of the motor 202 and the requirement threshold, so as to implement setting of the first rotation speed and the second rotation speed, and meanwhile, the first rotation speed and the second rotation speed determined according to the above parameters are related to the requirement threshold, so that it is ensured that the motor 202 can implement adjustment of one or more of temperature, humidity and pollutant particle concentration at the fastest speed at the first rotation speed, and at the second rotation speed, one or more of temperature, humidity and pollutant particle concentration in the space in the temperature adjustment box can be maintained within a certain range.
In an embodiment of the method, for example, the temperature is used to determine the requirement information, when an absolute difference between a room temperature of the temperature adjustment box and a set temperature of the temperature adjustment box is greater than a temperature threshold, the motor 202 is controlled to operate at a first rotation speed, and when the absolute difference between the room temperature of the temperature adjustment box and the set temperature of the temperature adjustment box is less than or equal to the temperature threshold, the motor 202 is controlled to operate at a second rotation speed.
In an embodiment of the method, for example, the humidity is used to determine the demand information, when an absolute difference between the chamber humidity of the temperature regulation box and the set humidity of the temperature regulation box is greater than a humidity threshold, the motor 202 is controlled to operate at a first rotation speed, and when the absolute difference between the chamber humidity of the temperature regulation box and the set humidity of the temperature regulation box is less than or equal to the humidity threshold, the motor 202 is controlled to operate at a second rotation speed, so as to control the chamber humidity to be below the humidity threshold.
In one embodiment, taking the air particulate matter concentration as an example to determine the demand information, when the absolute difference between the indoor air particulate matter concentration of the temperature regulation box and the set air particulate matter concentration of the temperature regulation box is greater than the air particulate matter concentration threshold, the motor 202 is controlled to operate at a first rotational speed, and the absolute difference between the indoor air particulate matter concentration of the temperature regulation box and the set air particulate matter concentration of the temperature regulation box is less than or equal to the air particulate matter concentration threshold, the motor 202 is controlled to operate at a second rotational speed to control the air particulate matter concentration to be below the air particulate matter concentration threshold.
In one embodiment, the demand information may also be determined according to the content of a certain gas component in the air.
In an embodiment thereof, the first rotational speed is greater than or equal to 3500 revolutions per minute and less than or equal to 4500 revolutions per minute; the second rotational speed is greater than or equal to 1200 revolutions per minute and less than or equal to 1800 revolutions per minute.
In any of the above embodiments, the demand information includes a cooling demand or a heating demand.
In this embodiment, when the electric appliance 200 is an air conditioner, the demand information includes at least one of a cooling demand and a heating demand.
In one embodiment, when the appliance 200 is a refrigerator, the demand information includes a cooling demand.
In one embodiment thereof, the temperature regulation box is a refrigerator.
In this embodiment, the velocity driver 100 includes: comprises a control device, an inverter device and a rectifying device. The rectifying device rectifies 220V alternating current commercial power into a direct current power supply through rectification, filtering and voltage stabilization. The inverter inverts the DC power output by the rectifier into AC power with a set frequency to drive the compressor to operate, and the frequency of the AC power output by the inverter corresponds to the operating speed of the driven compressor. The control device receives an external speed change signal (demand information) and controls the compressor to operate at two rotating speeds, namely a high rotating speed NH and a low rotating speed NL through the inverter device. When the refrigerator has a quick refrigerating requirement, the variable speed driver selects to execute high rotation speed NH. After the temperature of the refrigerator compartment reaches the set temperature, the variable speed driver selects and executes the low rotating speed NL, and the compartment temperature is maintained by using a smaller refrigerating capacity.
The refrigerator has different box volumes and different heat dissipation degrees, and the refrigerating capacity of the compressor is related to the discharge capacity and the rotating speed. Therefore, the high rotation speed NH required by the compressor for quick refrigeration and the low rotation speed NL required by temperature maintenance need to be calibrated according to the refrigeration capacities of the refrigerator body and the compressor. Specifically, 3500 rpm. ltoreq. NH. ltoreq.4500 rpm, 1200 rpm. ltoreq. NL. ltoreq.1800 rpm.
Through the embodiment, the requirement for quick refrigeration of the refrigerator and the temperature maintenance of the compartment can be met, the starting and stopping times of the compressor are effectively reduced, the operating efficiency of the variable speed driver and the compressor is improved, the performance requirement of components can be simplified, and the cost of the variable speed driver is reduced.
EXAMPLE III
In one embodiment of the present invention, as shown in fig. 3, a control method of a velocity driver includes:
s302, receiving demand information;
s304, selecting the first rotating speed or the second rotating speed according to the requirement information, and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed to the motor.
The control method of the speed driver provided by the invention selects the first rotating speed or the second rotating speed according to the demand information after receiving the demand information, and outputs the power supply signal corresponding to the first rotating speed or the second rotating speed to supply power to the motor to run.
In an embodiment of the present invention, the step of selecting the first rotation speed or the second rotation speed according to the demand information, and outputting the power supply signal corresponding to the first rotation speed or the second rotation speed to the motor specifically includes: determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotating speed to the motor; determining that the demand information is smaller than a demand threshold value, and outputting a power supply signal corresponding to the second rotating speed to the motor; wherein the first rotational speed is greater than the second rotational speed.
In this embodiment, a power supply signal corresponding to a rotation speed is output according to a comparison result of the received demand information and the demand threshold value, so that the motor operates at the corresponding rotation speed, specifically, it is determined that the demand information is greater than or equal to the demand threshold value, that is, the currently received demand is greater, and a power supply signal corresponding to a first rotation speed is output so that the motor outputs at the first rotation speed to satisfy the demand information.
In one embodiment, as shown in fig. 4, the method for controlling a speed driver includes:
s402, receiving demand information;
s404, selecting a first rotating speed or a second rotating speed according to the requirement information, and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed to the motor;
s406, determining that the motor runs at the first rotating speed, and acquiring current demand information;
and S408, outputting a power supply signal corresponding to the first rotating speed to the motor or outputting a power supply signal corresponding to the second rotating speed to the motor according to the comparison result of the current demand information and the demand threshold.
In this embodiment, after it is determined that the motor operates at the first rotation speed, since the demand information received by the speed driver changes after the motor operates, the current demand information is obtained, and according to a comparison result between the current demand information and the demand threshold, a power supply signal corresponding to the first rotation speed is output to the motor or a power supply signal corresponding to the second rotation speed is output to the motor, so that dynamic control over the rotation speed of the motor according to the demand information is realized, the motor is ensured to output as required, and energy consumption is reduced.
Example four
In an embodiment of the invention, a computer-readable storage medium is proposed, in which a computer program is stored, which computer program, when executed, realizes the steps of the control method of a velocity driver as defined in any one of the above.
The present invention provides a computer-readable storage medium, wherein a computer program stored in the computer-readable storage medium implements the steps of the method for controlling any one of the speed drivers when running, so that the method has all the beneficial technical effects of the method for controlling any one of the speed drivers, and is not described herein again.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplification of the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A speed driver, characterized in that,
the speed driver is used for selecting a first rotating speed or a second rotating speed according to the requirement information and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed;
the speed driver can only output a power supply signal corresponding to the first rotating speed or the second rotating speed;
the velocity driver is specifically configured to:
determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotation speed; and
determining that the demand information is smaller than the demand threshold, and outputting a power supply signal corresponding to the second rotating speed;
wherein the first rotational speed is greater than the second rotational speed.
2. The velocity driver of claim 1, wherein the velocity driver comprises:
the first input end of the inverter device is configured to receive a direct current signal, and the first output end of the inverter device is configured to be connected with a motor;
the first input end of the control device is configured to receive the demand information, the first output end of the control device is connected with the inverter device, and the control device is configured to output a control signal corresponding to the first rotating speed and/or the second rotating speed to the inverter device so that the inverter device outputs an alternating current signal of a power supply frequency corresponding to the first rotating speed and/or the second rotating speed.
3. The velocity driver of claim 2, further comprising:
the input end of the rectifying device is configured to be connected with an alternating current power supply, and the output end of the rectifying device is connected with the first input end of the inverter device and used for outputting the direct current signal to the inverter device.
4. An electrical appliance, comprising:
a motor;
a speed drive as claimed in any one of claims 1 to 3.
5. The appliance of claim 4, wherein the appliance is an air conditioning device, and the speed driver is further configured to:
receiving volume information and heat dissipation parameters of a space where the air conditioning equipment is located, and displacement information of the motor;
and determining the first rotating speed and the second rotating speed according to the volume information of the space where the air conditioning equipment is located, the heat dissipation parameter, the displacement information of the motor and the demand threshold.
6. The appliance of claim 4, wherein the appliance is a thermostat, and wherein the speed driver is further configured to:
receiving volume information and heat dissipation parameters of the temperature adjusting box and displacement information of the motor;
and determining the first rotating speed and the second rotating speed according to the volume information of the temperature adjusting box, the heat dissipation parameter, the displacement information of the motor and the requirement threshold.
7. The appliance according to claim 6, characterised in that the temperature regulation cabinet is a refrigerator.
8. The electric appliance according to claim 7,
the first speed is greater than or equal to 3500 revolutions per minute and less than or equal to 4500 revolutions per minute;
the second rotational speed is greater than or equal to 1200 revolutions per minute and less than or equal to 1800 revolutions per minute.
9. The electric appliance according to claim 5 or 6, wherein the demand information includes a cooling demand or a heating demand.
10. A method of controlling a speed driver, comprising:
receiving demand information;
selecting a first rotating speed or a second rotating speed according to the requirement information, and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed to the motor;
the speed driver can only output a power supply signal corresponding to the first rotating speed or the second rotating speed; the step of selecting a first rotating speed or a second rotating speed according to the demand information and outputting a power supply signal corresponding to the first rotating speed or the second rotating speed to the motor specifically includes:
determining that the demand information is greater than or equal to a demand threshold value, and outputting a power supply signal corresponding to the first rotating speed to the motor; and
determining that the demand information is smaller than the demand threshold, and outputting a power supply signal corresponding to the second rotating speed to the motor;
wherein the first rotational speed is greater than the second rotational speed.
11. The control method of the velocity driver according to claim 10, further comprising:
determining that the motor operates at the first rotating speed, and acquiring current demand information;
and outputting a power supply signal corresponding to the first rotating speed to the motor or outputting a power supply signal corresponding to the second rotating speed to the motor according to the comparison result of the current demand information and a demand threshold.
12. A computer-readable storage medium, comprising:
the computer-readable storage medium has stored therein a computer program which, when executed, carries out the steps of the control method of a speed drive according to claim 10 or 11.
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| CN201911000164.3A CN112762642B (en) | 2019-10-21 | 2019-10-21 | Speed driver, electric appliance, speed driver control method, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911000164.3A CN112762642B (en) | 2019-10-21 | 2019-10-21 | Speed driver, electric appliance, speed driver control method, and storage medium |
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| CN112762642B true CN112762642B (en) | 2022-07-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895660A (en) * | 2017-02-06 | 2017-06-27 | 安徽美芝制冷设备有限公司 | Frequency conversion refrigerator and its control system and control method |
| CN107606871A (en) * | 2017-10-12 | 2018-01-19 | 南京创维电器研究院有限公司 | A kind of control method of frequency conversion refrigerator, device and frequency conversion refrigerator |
| KR101866424B1 (en) * | 2018-04-09 | 2018-07-05 | 주식회사 세일공조 | Energy Saving Constant Temperature and Humidity System using BLDC Motor for Computer Room |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7080521B2 (en) * | 2004-08-31 | 2006-07-25 | Thermo King Corporation | Mobile refrigeration system and control |
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2019
- 2019-10-21 CN CN201911000164.3A patent/CN112762642B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895660A (en) * | 2017-02-06 | 2017-06-27 | 安徽美芝制冷设备有限公司 | Frequency conversion refrigerator and its control system and control method |
| CN107606871A (en) * | 2017-10-12 | 2018-01-19 | 南京创维电器研究院有限公司 | A kind of control method of frequency conversion refrigerator, device and frequency conversion refrigerator |
| KR101866424B1 (en) * | 2018-04-09 | 2018-07-05 | 주식회사 세일공조 | Energy Saving Constant Temperature and Humidity System using BLDC Motor for Computer Room |
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