CN108931042B - Control method and device for heating compressor winding - Google Patents

Control method and device for heating compressor winding Download PDF

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Publication number
CN108931042B
CN108931042B CN201810635697.8A CN201810635697A CN108931042B CN 108931042 B CN108931042 B CN 108931042B CN 201810635697 A CN201810635697 A CN 201810635697A CN 108931042 B CN108931042 B CN 108931042B
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temperature
compressor
heating
current
frequency
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CN108931042A (en
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黄招彬
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/34—Heater, e.g. gas burner, electric air heater

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method and a device for heating a compressor winding, wherein the method comprises the following steps: acquiring outdoor ambient temperature and indoor temperature; the heating current of the compressor winding is regulated according to the outdoor ambient temperature and the indoor temperature. The invention can heat through the compressor winding, so that the refrigerant absorbs and transfers heat to the indoor unit evaporator through the winding, thereby improving the low-temperature heating capacity.

Description

Control method and device for heating compressor winding
Technical Field
The invention relates to the technical field of compressors, in particular to a control method and device for heating a compressor winding.
Background
The low-temperature heating is always a technical difficulty of an inverter air conditioning system, and the technologies including a spray painting enthalpy increasing variable-frequency compressor technology, a two-stage compression inverter compressor technology and the like are all used for solving the problem of low-temperature heating.
At present, under the condition of not adopting a specially designed compressor, the low-temperature heating capacity is generally improved only by increasing the rotating speed of the compressor. However, there is an upper limit to the operating speed of the compressor, and excessive speeds can cause mechanical wear and failure of the compressor.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art described above.
Therefore, an object of the present invention is to provide a method for controlling heating of a compressor winding, which can improve low-temperature heating capability by allowing a refrigerant to absorb and transfer heat to an indoor unit evaporator through the winding by heating the compressor winding.
Another object of the present invention is to propose a control device for the heating of the compressor windings.
A third object of the invention is to propose an electronic device.
A fourth object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a control method for heating a compressor winding, including the following steps: acquiring outdoor ambient temperature and indoor temperature; and adjusting the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature.
According to the control method for heating the compressor winding, disclosed by the embodiment of the invention, the heating current of the compressor winding is adjusted according to the outdoor environment temperature and the indoor temperature by acquiring the outdoor environment temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers the heat to the evaporator of the indoor unit through the winding, and the low-temperature heating capacity is improved.
In addition, the control method for heating the compressor winding according to the above embodiment of the present invention may further have the following additional technical features:
in some examples, the obtaining the outdoor ambient temperature and the indoor temperature includes: acquiring an outdoor actual environment temperature, an indoor set temperature and an indoor actual temperature; the adjusting of the heating current of the compressor winding according to the outdoor ambient temperature and the indoor temperature includes: and adjusting the heating current in a closed loop according to the indoor set temperature, the indoor actual temperature and the outdoor actual environment temperature.
In some examples, the closed-loop adjusting the heating current according to the indoor set temperature, the indoor actual temperature, and the outdoor actual ambient temperature includes: calculating the difference value between the indoor set temperature and the indoor actual temperature to obtain difference value temperature; carrying out integral adjustment, proportional integral adjustment or variable gain integral adjustment on the difference temperature to obtain an adjusted heating current; and carrying out first amplitude limiting control on the adjusted heating current to obtain the heating current, wherein the upper limit of the first amplitude limiting control is equal to zero, the lower limit of the first amplitude limiting control is determined according to the outdoor actual environment temperature, and the lower the outdoor actual environment temperature is, the lower the first amplitude limiting control is.
In some examples, further comprising: adding the heating current and the weak magnetic control current to obtain a first weak magnetic current; and carrying out second amplitude limiting control on the first weak magnetic current to obtain a second weak magnetic current, wherein the upper limit of the second amplitude limiting control is equal to zero, and the lower limit of the second amplitude limiting control is equal to the minimum value of the direct-axis current of the compressor.
In some examples, further comprising: calculating the difference value of the voltage amplitude limiting threshold and the output voltage amplitude to obtain a weak magnetic voltage difference value; and adjusting the flux weakening voltage difference value to obtain the flux weakening control current.
In some examples, further comprising: if the air conditioner is in a heating mode, the temperature of the weak magnetic control module is smaller than an overheating frequency limiting threshold, the temperature of the evaporator is smaller than a temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than an exhaust frequency limiting threshold, the outdoor environment temperature is equal to or smaller than a first temperature threshold, and the operation frequency of the compressor is equal to or larger than the highest operation frequency of the corresponding working condition, the heating function of a winding of the compressor is started, the outdoor environment temperature and the indoor temperature are obtained, and the heating current is adjusted according to the outdoor environment temperature and the indoor temperature.
In some examples, further comprising: if the air conditioner is in the heating mode, the temperature of the weak magnetic control module is equal to or greater than the overheating frequency limiting threshold, or the temperature of the evaporator is equal to or greater than the temperature frequency limiting threshold, or the input current of the compressor is equal to or greater than the overcurrent frequency limiting threshold, or the exhaust temperature is equal to or greater than the exhaust frequency limiting threshold, judging whether the heating function of the compressor winding is started; if the compressor is started, gradually reducing the heating current, and quitting the heating function of the compressor winding when the heating current is equal to zero; if not, the running frequency of the compressor is gradually reduced.
In some examples, further comprising: if the air conditioner is in the heating mode, the temperature of the weak magnetic control module is smaller than the overheating frequency limiting threshold, the temperature of the evaporator is smaller than the temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than the exhaust frequency limiting threshold, the outdoor environment temperature is larger than the first temperature threshold, or the outdoor environment temperature is equal to or smaller than the first temperature threshold, and the compressor operation frequency is smaller than the highest operation frequency of the corresponding working condition, judging whether the heating function of the compressor winding is started; and if the compressor is started, gradually reducing the heating current, and exiting the heating function of the compressor winding when the heating current is equal to zero.
Embodiments of the second aspect of the present invention further provide a control device for heating a compressor winding, including: the acquisition module is used for acquiring the outdoor environment temperature and the indoor temperature; and the adjusting module is used for adjusting the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature.
According to the control device for heating the compressor winding, disclosed by the embodiment of the invention, the heating current of the compressor winding is adjusted according to the outdoor environment temperature and the indoor temperature by acquiring the outdoor environment temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers the heat to the evaporator of the indoor unit through the winding, and the low-temperature heating capacity is improved.
In addition, the control device for heating the compressor winding according to the above embodiment of the present invention may further have the following additional technical features:
in some examples, the obtaining module is configured to obtain an outdoor actual ambient temperature, an indoor set temperature, and an indoor actual temperature; the adjusting module is used for adjusting the heating current in a closed loop mode according to the indoor set temperature, the indoor actual temperature and the outdoor actual environment temperature.
In some examples, the adjusting module is configured to calculate a difference between the indoor set temperature and the indoor actual temperature to obtain a difference temperature, perform integral adjustment, proportional-integral adjustment, or variable-gain integral adjustment on the difference temperature to obtain an adjusted heating current, and perform first amplitude limiting control on the adjusted heating current to obtain the heating current, where an upper limit of the first amplitude limiting control is equal to zero, a lower limit of the first amplitude limiting control is determined according to the outdoor actual environment temperature, and the lower the outdoor actual environment temperature, the lower the first amplitude limiting control.
In some examples, the adjusting module is further configured to add the heating current and the flux weakening control current to obtain a first flux weakening current, and perform a second amplitude limiting control on the first flux weakening current to obtain a second flux weakening current, where an upper limit of the second amplitude limiting control is equal to zero, and a lower limit of the second amplitude limiting control is equal to a minimum value of a direct-axis current of the compressor.
In some examples, the adjusting module is configured to calculate a difference between a voltage amplitude limiting threshold and an output voltage amplitude to obtain a flux weakening voltage difference, and adjust the flux weakening voltage difference to obtain the flux weakening control current.
In some examples, the adjusting module is further configured to, when the air conditioner is in a heating mode, the temperature of the field weakening control module is less than an overheating frequency limiting threshold, the temperature of the evaporator is less than a temperature frequency limiting threshold, the input current of the compressor is less than an overcurrent frequency limiting threshold, the exhaust temperature is less than an exhaust frequency limiting threshold, the outdoor environment temperature is equal to or less than a first temperature threshold, and the compressor operating frequency is equal to or greater than a maximum operating frequency of a corresponding operating condition, turn on a compressor winding heating function, obtain the outdoor environment temperature and the indoor temperature, and adjust the heating current according to the outdoor environment temperature and the indoor temperature.
In some examples, the adjusting module is further configured to determine whether the compressor winding heating function is turned on when the air conditioner is in the heating mode and the temperature of the weak magnetic control module is equal to or greater than the overheat frequency limiting threshold, or the evaporator temperature is equal to or greater than the temperature frequency limiting threshold, or the compressor input current is equal to or greater than the overheat frequency limiting threshold, or the exhaust temperature is equal to or greater than the exhaust frequency limiting threshold; when the heating function of the compressor winding is started, gradually reducing the heating current, and when the heating current is equal to zero, quitting the heating function of the compressor winding; and when the heating function of the compressor winding is not started, gradually reducing the running frequency of the compressor.
In some examples, the adjusting module is further configured to determine whether the compressor winding heating function is turned on when the air conditioner is in the heating mode, the temperature of the weak magnetic control module is less than the overheat frequency limiting threshold, the evaporator temperature is less than the temperature frequency limiting threshold, the compressor input current is less than the overheat frequency limiting threshold, the exhaust temperature is less than the exhaust frequency limiting threshold, the outdoor environment temperature is greater than the first temperature threshold, or the outdoor environment temperature is equal to or less than the first temperature threshold and the compressor operating frequency is less than a highest operating frequency of a corresponding operating condition; when the compressor winding heating function is started, the heating current is gradually reduced, and when the heating current is equal to zero, the compressor winding heating function is quitted.
An embodiment of the third aspect of the present invention further provides an electronic device, including: the control method for heating the compressor winding comprises the following steps of storing a control program, executing the control program by the processor, and controlling the heating of the compressor winding according to the above embodiment of the invention.
According to the electronic equipment provided by the embodiment of the invention, the outdoor environment temperature and the indoor temperature are obtained, the heating current of the compressor winding is regulated according to the outdoor environment temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers the heat to the indoor unit evaporator through the winding, and the low-temperature heating capacity is improved.
Embodiments of the fourth aspect of the present invention also propose a non-transitory computer readable storage medium having stored thereon a computer program, which is executed by a processor, for implementing the control method of compressor winding heating according to the above-mentioned embodiments of the present invention.
According to the non-transitory computer readable storage medium provided by the embodiment of the invention, the outdoor environment temperature and the indoor temperature are obtained, the heating current of the compressor winding is adjusted according to the outdoor environment temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers the heat to the indoor unit evaporator through the winding, and the low-temperature heating capacity is improved.
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 is a flow chart of a method of controlling heating of compressor windings according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a control circuit topology for a compressor according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a compressor coordinate transformation relationship according to one embodiment of the present invention;
FIG. 4 is a block diagram of a vector control of a compressor according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of a control method of a classic weak magnetic control module;
FIG. 6 is a schematic diagram of a control method of a magnetic control module according to one embodiment of the invention;
FIG. 7 is a schematic flow diagram illustrating a compressor winding heating function control according to one embodiment of the present invention;
FIG. 8 is a schematic diagram of a compressor winding heating current regulation mode according to one embodiment of the present invention; and
fig. 9 is a block diagram of a control apparatus for heating of compressor windings according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes a control method and device for heating a compressor winding according to an embodiment of the invention with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method of controlling heating of compressor windings according to one embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:
step S1: and acquiring the outdoor ambient temperature and the indoor temperature.
Step S2: the heating current of the compressor winding is regulated according to the outdoor ambient temperature and the indoor temperature.
Referring to fig. 2, a control circuit topology of the lower compressor (i.e., an inverter compressor) is first introduced, where the control circuit topology of the compressor includes a three-phase bridge driving circuit composed of a control chip and a power switch tube, and the inverter compressor. The driving circuit may be composed of 6 IGBTs (Insulated Gate Bipolar transistors), or 6 MOSFETs (metal Oxide Semiconductor Field effect transistors), or an Intelligent Power Module (IPM) with anti-parallel diodes. The control chip outputs a compressor driving signal, the compressor driving signal controls the operation of the variable frequency compressor through the driving circuit, and the phase current detection of the compressor is carried out through the current sensors (three or two or one). The inverter compressor is, for example, a compressor driven by an embedded permanent magnet synchronous motor.
Further, fig. 3 is a coordinate relation diagram of vector control of the inverter compressor, and fig. 4 is a sensorless vector control block diagram of the inverter compressor. In the vector control, the rotation speed is given in conjunction with fig. 3 and 4
Figure BDA0001701477190000051
And estimating the rotational speed
Figure BDA0001701477190000052
Output torque setting via PI (proportional integral) controller
Figure BDA0001701477190000053
According to torque given
Figure BDA0001701477190000054
And the torque current coefficient KtAnd a weak magnetic current ifwcThe given quadrature axis current (q-axis current) is calculated by a Maximum Torque current controller (Maximum Torque Per Ampere, MTPA)
Figure BDA0001701477190000055
And direct axis current (d-axis current) is given
Figure BDA0001701477190000056
According to d-axis current setting, q-axis current setting and feedback current id/iqOutput voltage u via vector controld/uqThen obtaining a control output voltage u through PARK inverse transformationα/uβAnd then outputs a PWM (Pulse Width Modulation) waveform through Space Vector Modulation (SVM), and drives the variable frequency compressor through a power module. The three-phase current of the compressor is detected through a current sensor, and the feedback current i is obtained through CLARKE conversionα/iβThen obtaining a feedback current i through PARK changed/iq. According to the output voltage uα/uβAnd a feedback current iα/iβAnd the motor parameter (motor resistance R) in the compressorsStraight axis inductor LdAnd quadrature axis inductance Lq) The estimated rotating speed can be obtained by a sensorless estimation algorithm
Figure BDA0001701477190000061
And estimating the electrical angle
Figure BDA0001701477190000062
In an embodiment of the present invention, the acquiring the outdoor ambient temperature and the indoor temperature in step S1 specifically includes: obtaining the actual outdoor ambient temperature (i.e. T)4) Indoor set temperature (i.e. T)s *) And the actual temperature (i.e. T) in the room1). On the basis of this, the method is suitable for the production,adjusting the heating current of the compressor winding, i.e. i, according to the outdoor ambient temperature and the indoor temperature in step S2heatThe method specifically comprises the following steps: according to the indoor set temperature Ts *Indoor actual temperature T1And the actual outdoor ambient temperature T4Closed loop regulation of heating current iheat。
Wherein, the temperature T is set according to the indoors *Indoor actual temperature T1And the actual outdoor ambient temperature T4Closed loop regulation of heating current iheatThe method specifically comprises the following steps: calculating indoor set temperature Ts *And the actual indoor temperature T1Obtaining a difference temperature; integral adjustment, proportional integral adjustment or variable gain integral adjustment are carried out on the difference temperature to obtain adjusted heating current; carrying out first amplitude limiting control on the regulated heating current to obtain a heating current iheatThe upper limit of the first amplitude limiting control is equal to zero, and the lower limit of the first amplitude limiting control is based on the actual outdoor environment temperature T4Determining, the actual outdoor ambient temperature T4The lower limit of the first clipping control.
In other words, as shown in FIG. 8, i.e. according to the actual outdoor ambient temperature T4Indoor set temperature Ts *And the actual indoor temperature T1Is subjected to closed-loop regulation of the heating current iheatSpecific adjustment methods include, for example, pure integral control, proportional integral control, and variable gain integral control. In the example shown in fig. 8, a variable gain integral control method is selected. According to the actual outdoor environment temperature T4Limiting the heating current iheatUpper limit of (absolute value), outdoor actual ambient temperature T4The lower the allowable heating current iheatThe larger the upper limit (absolute value) is. Wherein the variable gain integral control is based on the indoor set temperature Ts *And the actual indoor temperature T1The larger the temperature difference value is, the larger the integral gain is, and the integral gain is zero when the temperature difference value is zero, so as to accelerate the winding heating current iheatAnd to avoid overshoot.
In one embodiment of the invention, the pressing is performed by a pressThe control method for heating the compressor winding further comprises the following steps: will heat current iheatAnd field weakening control current idpreAdding to obtain a first weak magnetic current; performing second amplitude limiting control on the first weak magnetic current to obtain a second weak magnetic current ifwcThe upper limit of the second clipping control is equal to zero and the lower limit of the second clipping control is equal to the minimum value of the compressor direct-axis current. Wherein, as mentioned above, the second weak magnetic current ifwcInput to a maximum torque current controller (MTPA) to calculate a quadrature current (q-axis current) setpoint
Figure BDA0001701477190000071
And direct axis current (d-axis current) is given
Figure BDA0001701477190000072
In one embodiment of the present invention, the control method for heating of the compressor winding further comprises: calculating a voltage clipping threshold umaxAnd the output voltage amplitude usObtaining a weak magnetic voltage difference value; adjusting the flux weakening voltage difference value to obtain flux weakening control current idpre。
Specifically, referring to fig. 5, a schematic diagram of a classic flux weakening control method is shown, wherein an output voltage u is obtained according to a rotating coordinate systemd/uqOr the output voltage u in a stationary coordinate systemα/uβCalculating the output voltage amplitude usThe method specifically comprises the following steps:
Figure BDA0001701477190000073
further, the voltage slice threshold u is set according to the maximum voltage amplitude that the driver can outputmaxMaximum voltage that can be output when space vector pulse width modulation algorithm is used and the drive is only operating in the linear modulation region and no over-modulation occurs
The amplitude is DC bus voltage udc0.577 times of, then, umax＝0.577udc，
Wherein the content of the first and second substances,
Figure BDA0001701477190000074
further, the voltage is clipped to a threshold umaxMinus the output voltage amplitude usObtaining the weak magnetic voltage difference value delta u, namely delta u-umax-us. Carrying out proportional-integral adjustment on the weak magnetic voltage difference value delta u, and obtaining weak magnetic current i through an amplitude limiting link (namely second amplitude limiting control) on the obtained output quantityfwcWherein the upper limit of the amplitude limiting link is zero, and the lower limit is d-axis current minimum value id_min(i.e., the minimum value of the compressor direct shaft current).
FIG. 6 shows a schematic diagram of a compressor winding heating control method according to an outdoor actual environment temperature T4Indoor set temperature
Figure BDA0001701477190000075
And the actual indoor temperature T1Is controlled to obtain a heating current iheatWill heat up the current iheatWith flux weakening controlling current idpreAdding the current values and obtaining the weak magnetic current i through an amplitude limiting link (namely, second amplitude limiting control)fwcWherein the upper limit of the amplitude limiting link is zero, and the lower limit is d-axis current minimum value id_min。
Further, in an embodiment of the present invention, as shown in fig. 7, the method for controlling heating of the compressor winding further includes: if the air conditioner is in a heating mode, the temperature of the weak magnetic control module is smaller than an overheating frequency limiting threshold, the temperature of the evaporator is smaller than a temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than an exhaust frequency limiting threshold, the outdoor environment temperature is equal to or smaller than a first temperature threshold, and the operation frequency of the compressor is equal to or larger than the highest operation frequency of the corresponding working condition, the heating function of a winding of the compressor is started, the outdoor environment temperature and the indoor temperature are obtained, and the heating current is adjusted according to the outdoor environment temperature and the indoor temperature.
Further, in an embodiment of the present invention, as shown in fig. 7, the method for controlling heating of the compressor winding further includes: if the air conditioner is in a heating mode, the temperature of the weak magnetic control module is equal to or greater than an overheating frequency limiting threshold, or the temperature of the evaporator is equal to or greater than a temperature frequency limiting threshold, or the input current of the compressor is equal to or greater than an overheating frequency limiting threshold, or the exhaust temperature is equal to or greater than an exhaust frequency limiting threshold, judging whether the heating function of the compressor winding is started; if the compressor is started, gradually reducing the heating current, and quitting the heating function of the compressor winding when the heating current is equal to zero; if not, the running frequency of the compressor is gradually reduced.
In an embodiment of the present invention, as shown in fig. 7, the method for controlling heating of the compressor winding further includes: if the air conditioner is in a heating mode, the temperature of the weak magnetic control module is smaller than an overheating frequency limiting threshold, the temperature of the evaporator is smaller than a temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than an exhaust frequency limiting threshold, the outdoor environment temperature is larger than a first temperature threshold, or the outdoor environment temperature is equal to or smaller than the first temperature threshold, and the operation frequency of the compressor is smaller than the highest operation frequency of the corresponding working condition, judging whether the heating function of a compressor winding is started; if the compressor is started, the heating current is gradually reduced, and the heating function of the compressor winding is quitted when the heating current is equal to zero.
In other words, under the heating module, when the temperature of the flux-weakening control module reaches an overheat frequency limiting threshold, or the temperature of the evaporator reaches an overheat frequency limiting threshold, or the input current of the compressor reaches an overcurrent frequency limiting threshold, or the exhaust temperature reaches an exhaust high-temperature frequency limiting threshold, if the current is in the winding heating function, the heating current of the compressor is gradually reduced, and the winding heating function is quitted when the heating current is reduced to zero; if not in the winding heating function, the compressor operating frequency is gradually decreased. Further, when the outdoor environment temperature does not exceed the first temperature threshold and the compressor operating frequency
Figure BDA0001701477190000081
When the highest compressor running frequency corresponding to the working condition running condition is reached, the heating function of the compressor winding is enteredAnd the heating current is adjusted in a closed loop mode according to the outdoor environment temperature, the indoor actual temperature and the indoor set temperature. When the outdoor ambient temperature exceeds a first temperature threshold, or the compressor operating frequency
Figure BDA0001701477190000082
When the maximum operation frequency is lower than the maximum operation frequency corresponding to the working condition operation condition, the heating current is gradually reduced to zero, the heating function of the compressor winding is quitted, and a linear reduction mode is preferred.
The preferred setting range of the overheating frequency limiting threshold of the weak magnetic control module is 75-95 ℃, the preferred setting range of the evaporator temperature frequency limiting threshold is 50-70 ℃, and the preferred setting range of the exhaust temperature frequency limiting threshold is 95-115 ℃. The first temperature threshold is preferably set in the range of-10 to 10 ℃, for example, 8 ℃. The maximum compressor operation frequency corresponding to the operating condition refers to the maximum compressor operation frequency allowed under the operating conditions corresponding to the indoor temperature, the outdoor environment temperature and the set temperature.
In summary, according to the control method for heating the compressor winding in the embodiment of the invention, the outdoor ambient temperature and the indoor temperature are obtained, the heating current of the compressor winding is adjusted according to the outdoor ambient temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers heat to the indoor unit evaporator through the winding, thereby improving the low-temperature heating capacity. The method can be applied to a conventional compressor, and can also be applied to an inverter compressor (such as an enhanced vapor injection compressor) with a special low-temperature heating design to further improve the heating capacity, and the applicability is high.
The invention further provides a control device for heating the compressor winding.
Fig. 9 is a block diagram of a control apparatus for heating of compressor windings according to an embodiment of the present invention. As shown in fig. 9, the control device 100 for heating the compressor winding includes: an acquisition module 110 and an adjustment module 120.
The obtaining module 110 is configured to obtain an outdoor ambient temperature and an indoor temperature.
The adjusting module 120 is used for adjusting the heating current of the compressor winding according to the outdoor ambient temperature and the indoor temperature.
Specifically, in an embodiment of the present invention, the acquiring module 110 acquires the outdoor ambient temperature and the indoor temperature, which specifically includes: and acquiring the actual outdoor environment temperature, the set indoor temperature and the actual indoor temperature. Based on this, the adjusting module 120 adjusts the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature, and specifically includes: and adjusting the heating current in a closed loop according to the indoor set temperature, the indoor actual temperature and the outdoor actual environment temperature.
Wherein, adjusting module 120 adjusts heating current according to indoor settlement temperature, indoor actual temperature and outdoor actual ambient temperature, closed loop, specifically includes: calculating a difference value between the indoor set temperature and the indoor actual temperature to obtain a difference value temperature, performing integral adjustment, proportional integral adjustment or variable gain integral adjustment on the difference value temperature to obtain an adjusted heating current, and performing first amplitude limiting control on the adjusted heating current to obtain a heating current, wherein the upper limit of the first amplitude limiting control is equal to zero, the lower limit of the first amplitude limiting control is determined according to the outdoor actual environment temperature, and the lower the outdoor actual environment temperature is, the lower the first amplitude limiting control is.
In an embodiment of the present invention, the adjusting module 120 is further configured to add the heating current and the flux weakening control current to obtain a first flux weakening current, and perform a second amplitude limiting control on the first flux weakening current to obtain a second flux weakening current, where an upper limit of the second amplitude limiting control is equal to zero, and a lower limit of the second amplitude limiting control is equal to a minimum value of the direct-axis current of the compressor.
In an embodiment of the present invention, the adjusting module 120 is configured to calculate a difference between a voltage amplitude limiting threshold and an output voltage amplitude to obtain a weak magnetic voltage difference, and adjust the weak magnetic voltage difference to obtain a weak magnetic control current.
Further, in an embodiment of the present invention, the adjusting module 120 is configured to, when the air conditioner is in a heating mode, the temperature of the weak magnetic control module is less than the over-heating frequency-limiting threshold, the temperature of the evaporator is less than the temperature frequency-limiting threshold, the input current of the compressor is less than the over-current frequency-limiting threshold, the exhaust temperature is less than the exhaust frequency-limiting threshold, the outdoor environment temperature is equal to or less than the first temperature threshold, and the operating frequency of the compressor is equal to or greater than the highest operating frequency of the corresponding operating condition, turn on the heating function of the compressor winding to obtain the outdoor environment temperature and the indoor temperature, and adjust the heating current according to the outdoor environment temperature and the indoor temperature.
In an embodiment of the present invention, the adjusting module 120 is further configured to determine whether the compressor winding heating function is turned on when the air conditioner is in the heating mode and the temperature of the flux weakening control module is equal to or greater than the overheat frequency limiting threshold, or the evaporator temperature is equal to or greater than the temperature frequency limiting threshold, or the compressor input current is equal to or greater than the overheat frequency limiting threshold, or the exhaust temperature is equal to or greater than the exhaust frequency limiting threshold; when the heating function of the compressor winding is started, gradually reducing the heating current, and when the heating current is equal to zero, quitting the heating function of the compressor winding; when the heating function of the compressor winding is not started, the running frequency of the compressor is gradually reduced
In an embodiment of the present invention, the adjusting module 120 is further configured to determine whether the compressor winding heating function is turned on when the air conditioner is in the heating mode, the temperature of the weak magnetic control module is less than the over-heating frequency-limiting threshold, the temperature of the evaporator is less than the temperature frequency-limiting threshold, the input current of the compressor is less than the over-current frequency-limiting threshold, the exhaust temperature is less than the exhaust frequency-limiting threshold, the outdoor environment temperature is greater than the first temperature threshold, or the outdoor environment temperature is equal to or less than the first temperature threshold and the compressor operating frequency is less than the highest operating frequency of the corresponding operating condition; and when the heating function of the compressor winding is started, gradually reducing the heating current, and when the heating current is equal to zero, quitting the heating function of the compressor winding.
It should be noted that, a specific implementation manner of the control device for heating a compressor winding according to the embodiment of the present invention is similar to a specific implementation manner of the control method for heating a compressor winding according to the embodiment of the present invention, and please refer to the description of the method part specifically, and no further description is given for reducing redundancy.
In summary, according to the control device for heating the compressor winding in the embodiment of the invention, the outdoor environment temperature and the indoor temperature are obtained, and the heating current of the compressor winding is adjusted according to the outdoor environment temperature and the indoor temperature, so that the compressor winding generates heat, and the refrigerant absorbs and transfers heat to the indoor unit evaporator through the winding, thereby improving the low-temperature heating capacity. The control device can be applied to a conventional compressor, can also be applied to a variable frequency compressor (such as an enhanced vapor injection compressor) with a special low-temperature heating design to further improve the heating capacity, and has high applicability.
A further embodiment of the present invention also provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of controlling heating of a compressor winding as described in any of the above embodiments of the invention.
According to the electronic equipment provided by the embodiment of the invention, the outdoor environment temperature and the indoor temperature are obtained, the heating current of the compressor winding is regulated according to the outdoor environment temperature and the indoor temperature, and then the compressor winding generates heat, so that the refrigerant absorbs and transfers the heat to the indoor unit evaporator through the winding, and the low-temperature heating capacity is improved. The electronic equipment can be applied to a conventional compressor, can also be applied to a variable frequency compressor (such as an enhanced vapor injection compressor) with a special low-temperature heating design to further improve the heating capacity, and has high applicability.
A further embodiment of the invention also proposes a non-transitory computer-readable storage medium having stored thereon a computer program for execution by a processor for implementing the method of controlling heating of a compressor winding as described in any one of the above embodiments of the invention.
According to the non-transitory computer readable storage medium provided by the embodiment of the invention, the low-temperature heating capacity is improved by acquiring the outdoor environment temperature and the indoor temperature, adjusting the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature, and further heating through the compressor winding, so that the refrigerant absorbs and transfers heat to the indoor unit evaporator through the winding.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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 present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (14)

1. A control method for heating a compressor winding is characterized by comprising the following steps:
acquiring outdoor ambient temperature and indoor temperature;
adjusting the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature;
the acquiring outdoor ambient temperature and indoor temperature includes: acquiring an outdoor actual environment temperature, an indoor set temperature and an indoor actual temperature;
the adjusting of the heating current of the compressor winding according to the outdoor ambient temperature and the indoor temperature includes:
adjusting the heating current in a closed loop according to the indoor set temperature, the indoor actual temperature and the outdoor actual environment temperature;
according to indoor set temperature, indoor actual temperature and outdoor actual ambient temperature, closed-loop control heating current includes:
calculating the difference value between the indoor set temperature and the indoor actual temperature to obtain difference value temperature;
carrying out integral adjustment, proportional integral adjustment or variable gain integral adjustment on the difference temperature to obtain an adjusted heating current;
and carrying out first amplitude limiting control on the adjusted heating current to obtain the heating current, wherein the upper limit of the first amplitude limiting control is equal to zero, the lower limit of the first amplitude limiting control is determined according to the outdoor actual environment temperature, and the lower the outdoor actual environment temperature is, the lower the first amplitude limiting control is.
2. The control method according to claim 1, characterized by further comprising:
adding the heating current and the weak magnetic control current to obtain a first weak magnetic current;
and carrying out second amplitude limiting control on the first weak magnetic current to obtain a second weak magnetic current, wherein the upper limit of the second amplitude limiting control is equal to zero, and the lower limit of the second amplitude limiting control is equal to the minimum value of the direct-axis current of the compressor.
3. The control method according to claim 2, characterized by further comprising:
calculating the difference value of the voltage amplitude limiting threshold and the output voltage amplitude to obtain a weak magnetic voltage difference value;
and adjusting the flux weakening voltage difference value to obtain the flux weakening control current.
4. The control method according to claim 1, characterized by further comprising:
if the air conditioner is in a heating mode, the temperature of the weak magnetic control module is smaller than an overheating frequency limiting threshold, the temperature of the evaporator is smaller than a temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than an exhaust frequency limiting threshold, the outdoor environment temperature is equal to or smaller than a first temperature threshold, and the operation frequency of the compressor is equal to or larger than the highest operation frequency of the corresponding working condition, the heating function of a winding of the compressor is started, the outdoor environment temperature and the indoor temperature are obtained, and the heating current is adjusted according to the outdoor environment temperature and the indoor temperature.
5. The control method according to claim 4, characterized by further comprising:
if the air conditioner is in the heating mode, and
the temperature of the weak magnetic control module is equal to or greater than the overheating frequency limiting threshold, or the temperature of the evaporator is equal to or greater than the temperature frequency limiting threshold, or the input current of the compressor is equal to or greater than the overcurrent frequency limiting threshold, or the exhaust temperature is equal to or greater than the exhaust frequency limiting threshold, and then whether the heating function of the compressor winding is started or not is judged;
if the compressor is started, gradually reducing the heating current, and quitting the heating function of the compressor winding when the heating current is equal to zero;
if not, the running frequency of the compressor is gradually reduced.
6. The control method according to claim 5, characterized by further comprising:
if the air conditioner is in the heating mode, the temperature of the weak magnetic control module is smaller than the overheating frequency limiting threshold, the temperature of the evaporator is smaller than the temperature frequency limiting threshold, the input current of the compressor is smaller than the overheating frequency limiting threshold, the exhaust temperature is smaller than the exhaust frequency limiting threshold, and
if the outdoor environment temperature is greater than the first temperature threshold value, or the outdoor environment temperature is equal to or less than the first temperature threshold value and the compressor operating frequency is less than the highest operating frequency of the corresponding working condition, judging whether the compressor winding heating function is started;
and if the compressor is started, gradually reducing the heating current, and exiting the heating function of the compressor winding when the heating current is equal to zero.
7. A control device for heating of a compressor winding, comprising:
the acquisition module is used for acquiring the outdoor environment temperature and the indoor temperature;
the adjusting module is used for adjusting the heating current of the compressor winding according to the outdoor environment temperature and the indoor temperature;
the acquisition module is used for acquiring the actual outdoor environment temperature, the set indoor temperature and the actual indoor temperature;
the adjusting module is used for adjusting the heating current in a closed loop mode according to the indoor set temperature, the indoor actual temperature and the outdoor actual environment temperature;
the adjusting module is used for calculating a difference value between the indoor set temperature and the indoor actual temperature to obtain a difference value temperature, carrying out integral adjustment, proportional integral adjustment or variable gain integral adjustment on the difference value temperature to obtain an adjusted heating current, and carrying out first amplitude limiting control on the adjusted heating current to obtain the heating current, wherein the upper limit of the first amplitude limiting control is equal to zero, the lower limit of the first amplitude limiting control is determined according to the outdoor actual environment temperature, and the lower the outdoor actual environment temperature is, the lower limit of the first amplitude limiting control is.
8. The control device according to claim 7, wherein the adjusting module is further configured to add the heating current and the flux weakening control current to obtain a first flux weakening current, and perform a second amplitude limiting control on the first flux weakening current to obtain a second flux weakening current, an upper limit of the second amplitude limiting control being equal to zero, and a lower limit of the second amplitude limiting control being equal to a minimum value of a direct-axis current of the compressor.
9. The control device according to claim 8, wherein the adjusting module is configured to calculate a difference between a voltage slice threshold and an output voltage amplitude to obtain a flux weakening voltage difference, and adjust the flux weakening voltage difference to obtain the flux weakening control current.
10. The control device of claim 7, wherein the adjusting module is further configured to, when the air conditioner is in a heating mode, the temperature of the field weakening control module is less than an overheat frequency limiting threshold, the evaporator temperature is less than a temperature frequency limiting threshold, the compressor input current is less than the overheat frequency limiting threshold, the exhaust temperature is less than an exhaust frequency limiting threshold, the outdoor environment temperature is equal to or less than a first temperature threshold, and the compressor operating frequency is equal to or greater than a maximum operating frequency of a corresponding operating condition, turn on a compressor winding heating function to obtain the outdoor environment temperature and the indoor temperature, and adjust the heating current according to the outdoor environment temperature and the indoor temperature.
11. The control apparatus of claim 10, wherein the adjustment module is further configured to adjust the air conditioning system when the air conditioning system is in the heating mode, and
when the temperature of the weak magnetic control module is equal to or greater than the overheating frequency limiting threshold, or the temperature of the evaporator is equal to or greater than the temperature frequency limiting threshold, or the input current of the compressor is equal to or greater than the overcurrent frequency limiting threshold, or the exhaust temperature is equal to or greater than the exhaust frequency limiting threshold, whether the heating function of the compressor winding is started or not is judged;
when the heating function of the compressor winding is started, gradually reducing the heating current, and when the heating current is equal to zero, quitting the heating function of the compressor winding;
and when the heating function of the compressor winding is not started, gradually reducing the running frequency of the compressor.
12. The control apparatus of claim 11, wherein the adjustment module is further configured to adjust the compressor input current to a temperature less than the over-temperature frequency-limiting threshold, the evaporator temperature to a temperature less than the temperature frequency-limiting threshold, the compressor input current to a temperature less than the over-current frequency-limiting threshold, and the discharge temperature to a discharge frequency less than the discharge frequency-limiting threshold when the air conditioner is in the heating mode, and the temperature of the low-magnetic control module is less than the over-temperature frequency-limiting threshold, and the discharge temperature is less than the discharge frequency-limiting threshold, and
when the outdoor environment temperature is greater than the first temperature threshold value, or the outdoor environment temperature is equal to or less than the first temperature threshold value and the compressor operating frequency is less than the highest operating frequency of the corresponding working condition, judging whether the compressor winding heating function is started;
when the compressor winding heating function is started, the heating current is gradually reduced, and when the heating current is equal to zero, the compressor winding heating function is quitted.
13. An electronic device, comprising: memory, processor and computer program stored on said memory and executable on said processor, said processor executing said program to implement a method of controlling heating of a compressor winding according to any one of claims 1 to 6.
14. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program is executed by a processor for implementing the control method of compressor winding heating according to any one of claims 1-6.
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CN110336509A (en) * 2019-07-08 2019-10-15 浙江台运汽车科技有限公司 One kind is based on SVPWM control stator winding heating means and device
CN113834205B (en) * 2020-06-24 2022-09-27 广东美的制冷设备有限公司 Control method for heating of compressor winding, air conditioner and storage medium
CN113834206B (en) * 2020-06-24 2023-04-28 广东美的制冷设备有限公司 Control method for heating of compressor winding, air conditioner and storage medium
CN112197408B (en) * 2020-10-13 2022-04-01 广东美的制冷设备有限公司 Heating control method of compressor winding, air conditioner control method, system and equipment
US20230296277A1 (en) * 2022-03-21 2023-09-21 Lennox Industries Inc. Hvac system with improved operation of a variable speed compressor during a peak demand response

Family Cites Families (10)

* Cited by examiner, † Cited by third party
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CN2369006Y (en) * 1999-02-24 2000-03-15 青岛市家用电器研究所 Heating belt for compressor
CN102661267A (en) * 2012-05-02 2012-09-12 青岛海尔空调电子有限公司 Control method and system of compressor electric heating band in air conditioner
CN104596171B (en) * 2014-12-22 2018-03-09 广东美的制冷设备有限公司 The control method and control device of compressor electric motor in air conditioner and air conditioner
CA2929709C (en) * 2015-05-15 2023-09-26 Watsco Ventures Llc Method and system for proactively and remotely diagnosing an hvac system
KR101794449B1 (en) * 2016-06-13 2017-12-01 엘지전자 주식회사 Air conditioner
CN106091501A (en) * 2016-06-21 2016-11-09 珠海格力电器股份有限公司 A kind of air-conditioner that can improve low-temperature heating capacity and control method thereof
CN106247714A (en) * 2016-08-11 2016-12-21 广东美的制冷设备有限公司 Control method, control device, compressor and air-conditioner
CN106712631B (en) * 2016-12-26 2019-09-27 广东美的制冷设备有限公司 Permanent magnet synchronous motor system and its method and a device for controlling weak magnetism
CN108005880B (en) * 2017-10-31 2020-04-14 华为技术有限公司 Compressor heating system and method
CN107869456B (en) * 2017-11-16 2020-01-03 广东美的制冷设备有限公司 Operation control method, operation control device and compressor

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