CN111648946A - Universal compressor starting method and device and electrical equipment - Google Patents
Universal compressor starting method and device and electrical equipment Download PDFInfo
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- CN111648946A CN111648946A CN202010437939.XA CN202010437939A CN111648946A CN 111648946 A CN111648946 A CN 111648946A CN 202010437939 A CN202010437939 A CN 202010437939A CN 111648946 A CN111648946 A CN 111648946A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000008569 process Effects 0.000 claims abstract description 27
- 230000006870 function Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
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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
- F04B49/02—Stopping, starting, unloading or idling control
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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
- F04B49/065—Control using electricity and making use of computers
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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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Abstract
The invention provides a universal compressor starting method, a universal compressor starting device and electrical equipment, wherein a pipeline and a valve are arranged between an air inlet pipe and an air outlet pipe of a compressor, when a motor is stopped, the valve is controlled to be opened, the air inlet pipe and the air outlet pipe of the compressor are communicated through the pipeline, so that the pressure in the compressor is released to be zero, in the starting process of the motor, the pressure in the compressor is zero, the load is small, the motor can obtain a first control parameter corresponding to a current ring and a second control parameter corresponding to a preset speed ring according to a universal mode, the motor can be started quickly, after the motor drives the compressor to run stably, the valve is controlled to be closed, and when the load changes, the speed ring parameters are controlled in a fuzzy control mode. Therefore, different control parameters do not need to be configured for compressors of different models, the compressors can be started successfully and quickly by the universal mode, and the management difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of motor driving, in particular to a universal compressor starting method, a universal compressor starting device and electrical equipment.
Background
For household appliances with motor devices such as refrigerators and air conditioners, the core of the control system is a compressor. The compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas, is the heart of a refrigeration system, sucks low-temperature low-pressure refrigerant gas from an air suction pipe, drives a piston to compress the refrigerant gas through the operation of a motor, and discharges the high-temperature high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle.
When the compressor is started, because the internal pressure of the compressor is very large, the load is heavy, the starting failure is easily caused, the control parameters for driving the motor under the condition are important, and different control parameters are required to drive the corresponding motor when the models of the compressor are different, so that the starting of the compressor is realized. At present, control parameters corresponding to compressors of different models are stored in a storage medium eeprom, and after the model of the compressor is manually determined, the control parameters corresponding to the model of the compressor are matched in the storage medium, so that the motor is driven by the corresponding control parameters to start the compressor when the compressor is started.
However, in the prior art, in order to match the models of the compressors, the control parameters of various models need to be maintained, and the drive plates required for production and after-sales maintenance need to be matched with the models of the compressors, which causes great difficulty in management.
Disclosure of Invention
The embodiment of the invention provides a method and a device for starting a universal compressor and electrical equipment, which are used for starting compressors of different models by a universal method.
In a first aspect, an embodiment of the present invention provides an electrical apparatus, including at least a motor and a compressor; wherein,
a pipeline is arranged between the air inlet pipe and the air outlet pipe of the compressor, and a valve is arranged on the pipeline; when the valve is in an open state, the air inlet pipe and the air outlet pipe are in a communicated state through a pipeline, and the pressure in the compressor is zero; when the valve is in a closed state, the air inlet pipe and the air outlet pipe are communicated through the interior of the compressor;
and the motor is used for driving the compressor to realize a compression function through the piston in a starting state.
Preferably, the method further comprises the following steps: a condenser, a dry filter, a capillary tube and an evaporator; the compressor, the condenser and the drying filter are sequentially communicated end to end, the communicated part of the air inlet pipe of the compressor and the outlet of the drying filter is simultaneously communicated with one end of the capillary pipe, and the other end of the capillary pipe is communicated with the evaporator;
refrigerant gas is input from an air inlet pipe of the compressor, compressed into high-temperature high-pressure hot vapor by the compressor and output into the condenser from an air outlet pipe of the compressor, the condenser condenses the high-temperature high-pressure hot vapor into high-temperature medium-pressure liquid, flows into the drying filter, is filtered by the drying filter, then enters the capillary tube, is throttled and depressurized by the capillary tube and then is changed into low-temperature low-pressure liquid, the low-temperature low-pressure liquid absorbs heat in the evaporator and is vaporized into saturated vapor, so that refrigeration is realized, and the saturated vapor is output to an air inlet pipe of the compressor through the capillary tube and is absorbed by the compressor for the next cycle.
In a second aspect, an embodiment of the present invention further provides a universal compressor starting method based on the electrical equipment, including:
when the motor is in a stop state, controlling the valve to be opened so as to release the pressure in the compressor to be zero and keep the opening state of the valve;
when the motor is started, identifying motor parameters;
determining a first control parameter corresponding to the current loop according to the recognized motor parameter, and controlling the current loop by using the first control parameter;
controlling the speed ring by using a preset second control parameter;
after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed; and in the process of controlling the valve to be closed and the process of keeping the valve in a closed state, adjusting the control parameters of the speed ring in a fuzzy control mode, and controlling the speed ring by adopting the adjusted third control parameters.
Preferably, said controlling said valve to close comprises:
simulating a load value corresponding to the compressor in the process of controlling the valve to be closed;
and controlling the closing speed of the valve so that the increase rate of the load value is smaller than a set value.
Preferably, the second control parameter is an empirical value.
In a third aspect, an embodiment of the present invention further provides a generalized compressor starting apparatus based on the electrical device, including:
the valve control module is used for controlling the valve to be opened when the motor is in a stop state so as to release the pressure in the compressor to be zero and keep the opening state of the valve; after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed;
the parameter identification module is used for identifying motor parameters when the motor is started;
the parameter determining module is used for determining a first control parameter corresponding to the current loop according to the recognized motor parameter;
the motor control module is used for controlling the current loop by utilizing the first control parameter and controlling the speed loop by utilizing a preset second control parameter;
and the parameter adjusting module is used for adjusting the control parameters of the speed ring in a fuzzy control mode in the process of controlling the valve to be closed by the valve control module and in the process of keeping the valve in a closed state, and sending the adjusted third control parameters to the motor control module so as to enable the motor control module to control the speed ring by adopting the adjusted third control parameters.
Preferably, when the valve control module controls the valve to close, the method specifically includes: simulating a load value corresponding to the compressor in the process of controlling the valve to be closed; and controlling the closing speed of the valve so that the increase rate of the load value is smaller than a set value.
Preferably, the second control parameter is an empirical value.
In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of any one of the generalized compressor starting methods described above when executing the computer program.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the generalized compressor starting methods described above.
The embodiment of the invention provides a universal compressor starting method, a universal compressor starting device and electrical equipment, wherein a pipeline is arranged between an air inlet pipe and an air outlet pipe of a compressor, a valve is arranged on the pipeline, when a motor stops, the control valve is opened, the air inlet pipe and the air outlet pipe of the compressor are communicated through the pipeline, so that the pressure in the compressor is released to be zero, in the starting process of the motor, the pressure in the compressor is zero, so that the load is small, the motor can obtain a first control parameter corresponding to a current ring and a second control parameter corresponding to a preset speed ring in a universal mode, the motor can be quickly started, after the motor drives the compressor to stably run, the compressor is indicated to be successfully started, the control valve is closed, the load is gradually increased in the closing process of the valve, the speed ring control parameter can be adjusted in a fuzzy control mode, the speed ring is controlled by using the adjusted control parameters, so that the compressors of different models do not need to be configured with different control parameters, the compressors can be started successfully and quickly by using the universal mode, and the management difficulty is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electrical apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another electrical apparatus according to an embodiment of the present invention;
FIG. 3 is a flow chart of a generalized compressor starting method according to an embodiment of the present invention;
fig. 4 is a block diagram of motor parameter identification according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a generalized starting apparatus for a compressor according to an embodiment of the present invention;
fig. 6 is a hardware architecture diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
For electrical equipment comprising a motor and a compressor, such as a refrigerator, an air conditioner and the like, when the electrical equipment is started, the motor needs to be controlled to start and operate, so that the motor drives the compressor to operate through a piston, and when the compressor operates, refrigeration can be realized through a compression function. Because the pressure is great in the compressor to load when leading to the start is very big, when starting, causes the start failure easily, therefore need dispose different control parameters for the compressor of different models among the prior art, start and then the drive compressor of realization motor starts, when managing these control parameters, the management degree of difficulty is great. However, once the compressor is started successfully, the load of the compressor is reduced under the action of inertia, and the compressor is not stopped normally after the compressor is started successfully, so that the invention aims to start the motor and the compressor by using a universal method without configuring control parameters according to the model of the compressor, and has very high starting success rate.
Referring to fig. 1, an embodiment of the present invention provides an electrical apparatus, which includes at least a motor 101 and a compressor 102; wherein,
a pipeline is arranged between an air inlet pipe and an air outlet pipe of the compressor 102, and a valve 103 is arranged on the pipeline; when the valve 103 is in an open state, the air inlet pipe and the air outlet pipe are in a communication state through a pipeline, and the pressure in the compressor 102 is zero; when the valve 103 is in a closed state, the air inlet pipe and the air outlet pipe are communicated through the interior of the compressor 102;
the motor 101 is used for driving the compressor 102 to realize a compression function through a piston in a starting state.
Because the compressor is when realizing the refrigeration function, need will follow the inspiratory refrigerant gas of intake pipe and compress and discharge through the blast pipe, compressor internal pressure is great, especially when starting, the load that pressure corresponds can be bigger, cause the start failure easily, in this embodiment, through setting up the pipeline between the intake pipe of compressor and blast pipe, and set up the valve on the pipeline, after the valve is opened, pass through the pipeline intercommunication between intake pipe and the blast pipe, so can be zero the pressure release in the compressor, pressure is zero in the compressor, no matter what the compressor model is, when the starter motor, the load all can be very little, so can be fast and high success rate start the compressor.
In order to implement the cooling function of the electrical equipment, in an embodiment of the present invention, referring to fig. 2 (the motor is not shown in the figure), the electrical equipment may further include: a condenser 104, a dry filter 105, a capillary tube 106, and an evaporator 107; the compressor 102, the condenser 104 and the dry filter 105 are sequentially communicated end to end, a communication position of an air inlet pipe of the compressor 102 and an outlet of the dry filter 105 is simultaneously communicated with one end of the capillary tube 106, and the other end of the capillary tube 106 is communicated with the evaporator 107;
after the compressor is started and the valve is in a closed state, the refrigeration function is realized through the following processes: refrigerant gas is input from an air inlet pipe of the compressor 102, compressed into high-temperature high-pressure hot vapor by the compressor 102, and output from an air outlet pipe of the compressor 102 to the condenser 104, the condenser 104 condenses the high-temperature high-pressure hot vapor into high-temperature medium-pressure liquid, flows into the dry filter 105, enters the capillary tube 106 after being filtered by the dry filter 105, is throttled and depressurized by the capillary tube 106 to become low-temperature low-pressure liquid, the low-temperature low-pressure liquid absorbs heat in the evaporator 107 and is vaporized into saturated vapor to realize refrigeration, and the saturated vapor is output to the air inlet pipe of the compressor 102 through the capillary tube 106 and is absorbed by the compressor 102 to perform the next cycle.
Referring to fig. 3, based on the electrical equipment, the present invention provides a generalized compressor starting method, which may include the following steps:
step 301: and when the motor is in a stop state, controlling the valve to be opened so as to release the pressure in the compressor to be zero and maintain the opening state of the valve.
After the motor was converted into the shut down state by the starting state, very big pressure had in the compressor this moment, and for next starting process can be fast and high success rate, the control flap opened, through the pipeline intercommunication between the intake pipe of compressor and the blast pipe this moment, the pressure in the compressor is released, and final pressure is zero, keeps the open mode of valve.
Because the pressure in the compressor is zero, the model of the compressor does not need to be considered when the compressor is started, and the motor is started only according to a universal mode.
Step 302: and when the motor is started, identifying the motor parameters.
The motor parameters comprise quadrature axis inductance parameters Lq, direct axis inductance parameters Ld, phase resistance R and back electromotive force coefficients KE.
The motor parameter can be identified by any identification method at present, and in one embodiment of the present invention, the following identification method can be adopted:
fig. 4 is a block diagram of motor parameter identification according to an embodiment of the invention. The current of the motor A, B is subjected to Clarke conversion and Park conversion to obtain direct-axis current id and quadrature-axis current iq; obtaining quadrature axis voltage ud and direct axis voltage uq by a direct axis current id, a quadrature axis current iq, a direct axis current reference value id 'and a quadrature axis current reference value iq' through a current loop controller; and building a parameter identification model based on a least square method by using id, iq, ud, uq and the motor rotating speed omega re. In order to realize the online identification of PMSM parameters based on the least square method in a digital mode, firstly, a PMSM mathematical model needs to be processed in a digital mode. Assuming that the system sampling time Δ T is small enough, the current sampling period current change rate can be considered equal to the next sampling period, where id, iq, ud, uq, and ω re are known quantities. Deriving a current model (formula 4) by deriving formula 1, thereby obtaining an output matrix, a parameter matrix and an input matrix (formula 5) applied to a least square method; the method comprises the following specific steps:
equation 1 is a discretized voltage equation; p is a differential operator, and equation 1 is multiplied by Δ T to yield equation 2:
the two rows of equation 2 are divided by Ld, Lq, respectively, to yield equation 3:
rearranging equation 3 to obtain the current model of idn +1, iqn +1, equation 4:
in the formula, the subscript n represents the current sampling time, and n +1 represents the next sampling time.
In the formula, vd is a stator voltage direct-axis component, and vq is a stator voltage quadrature-axis component; id is stator direct axis current, iq is quadrature axis current; ld is a direct-axis inductor, and Lq is a quadrature-axis inductor; omega re is the electrical angular velocity of the motor; obtaining the result through a sensor; r is a stator phase resistor; KE is the back emf coefficient.
Based on the analysis, y is used as an output matrix, theta is used as a parameter matrix and is used as an input matrix, the motor parameter online identification is realized by using a least square method, and the y, theta and theta are substituted into an expression of the least square method, so that:
wherein,
and combining the least square method identification result (firstly identifying a11, a22, b11, b22 and c2 by using the least square method, and then calculating motor parameters Ld, Lq, R and KE by using a formula 9), and obtaining the online identification result of the motor quadrature axis inductance, the motor direct axis inductance, the motor phase resistance and the back electromotive force coefficient by using the formula (9).
Substituting a11, a22, b11, b22 and c2 into formula 9, and calculating motor parameters Ld, Lq, R and KE.
Step 303: and determining a first control parameter corresponding to the current loop according to the recognized motor parameter, and controlling the current loop by using the first control parameter.
After the motor parameters are determined, the first control parameters corresponding to the current loop can be calculated through the existing formula, where the first control parameters Kp and Ki can be calculated by using the following formula 10 and formula 11:
Kp＝0.5Lq/Ts-0.25R (10)
Ki＝0.5R (11)
where Ts is a time constant.
Step 304: and controlling the speed ring by using a preset second control parameter.
In one embodiment of the present invention, the second control parameter of the speed loop may be selected from a set of general empirical values, which is used to control the speed loop.
Step 305: after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed; and in the process of controlling the valve to be closed and the process of keeping the valve in a closed state, adjusting the control parameters of the speed ring in a fuzzy control mode, and controlling the speed ring by adopting the adjusted third control parameters.
After the compressor operates stably, because the valve is in an open state, the compressor can not compress refrigerant gas, the valve needs to be closed in order to realize the refrigeration function of electrical equipment, and after the compressor operates stably, the compressor can not be stopped under the general condition, and the compressor can realize the compression function only by controlling the valve to be closed.
In one embodiment of the present invention, since when the valve is closed quickly, the load may increase suddenly, and the motor operation may cause jitter, in order to reduce the jitter of the motor, the valve needs to be closed slowly, and specifically, the valve may be controlled to be closed in one of the following ways: and simulating a load value corresponding to the compressor in the process of controlling the valve to be closed, and controlling the closing speed of the valve so as to enable the increase rate of the load value to be smaller than a set value. The set value can be set according to actual conditions, for example, the set value is 1, and then the increase rate of the load value needs to be less than 1, so as to ensure the normal operation of the motor.
Preferably, the period of time for which the valve is closed can also be controlled to prevent a rapid increase in the load value, for example, at a set fixed rate, with the period of time from the beginning of valve closure to full closure being the target period of time, for example, 3 s.
In order to ensure the normal operation of the motor, the control parameters of the speed ring can be adjusted in a fuzzy control mode, the speed ring is controlled by the adjusted third control parameter, and after the valve is completely closed, the control parameters of the speed ring are continuously adjusted in the fuzzy control mode until the motor drives the compressor to stably operate.
In the above embodiment of the present invention, a pipeline is arranged between an air inlet pipe and an air outlet pipe of a compressor, a valve is arranged on the pipeline, when a motor is stopped, the control valve is opened, the air inlet pipe and the air outlet pipe of the compressor are communicated through the pipeline, so that the pressure in the compressor is released to zero, during the starting process of the motor, because the pressure in the compressor is zero, the load is small, the motor can obtain a first control parameter corresponding to a current loop and a second control parameter corresponding to a preset speed loop in a general way, so as to realize the rapid starting of the motor, after the motor drives the compressor to stably operate, the compressor is successfully started, the control valve is closed, because the load is gradually increased during the closing process of the valve, the speed loop control parameter can be adjusted in a fuzzy control way, so as to control the speed loop by using the adjusted control parameter, therefore, different control parameters do not need to be configured for compressors of different models, the compressors can be started successfully and quickly by the universal mode, and the management difficulty is reduced.
Referring to fig. 5, an embodiment of the present invention further provides a generalized compressor starting apparatus based on the electrical equipment, including:
a valve control module 501, configured to control the valve to open when the motor is in a shutdown state, so as to release pressure in the compressor to zero, and maintain an open state of the valve; after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed;
a parameter identification module 502, configured to identify a motor parameter when the motor is started;
a parameter determining module 503, configured to determine a first control parameter corresponding to the current loop according to the identified motor parameter;
a motor control module 504, configured to control the current loop by using the first control parameter, and control the speed loop by using a preset second control parameter;
and a parameter adjusting module 505, configured to adjust a control parameter of the speed loop in a fuzzy control manner in a process of controlling the valve to close by the valve control module and in a process of maintaining the valve in a closed state, and send an adjusted third control parameter to the motor control module, so that the motor control module controls the speed loop by using the adjusted third control parameter.
In an embodiment of the present invention, when the valve control module 501 controls the valve to close, the method specifically includes: simulating a load value corresponding to the compressor in the process of controlling the valve to be closed; and controlling the closing speed of the valve so that the increase rate of the load value is smaller than a set value.
In one embodiment of the invention, the second control parameter is an empirical value.
It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the generalized compressor starting apparatus. In other embodiments of the invention, the generalized compressor starting apparatus may include more or fewer components than illustrated, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Because the information interaction, execution process, and other contents between the units in the device are based on the same concept as the method embodiment of the present invention, specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
The embodiment also provides a computer device, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server or a rack server (including an independent server or a server cluster composed of a plurality of servers) capable of executing programs, and the like. The computer device 20 of the present embodiment includes at least, but is not limited to: a memory 21, a processor 22, which may be communicatively coupled to each other via a system bus, as shown in FIG. 6. It is noted that fig. 6 only shows a computer device 20 with components 21-22, but it is to be understood that not all shown components are required to be implemented, and that more or fewer components may be implemented instead.
In the present embodiment, the memory 21 (i.e., a readable storage medium) includes a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. In some embodiments, the storage 21 may be an internal storage unit of the computer device 20, such as a hard disk or a memory of the computer device 20. In other embodiments, the memory 21 may also be an external storage device of the computer device 20, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the computer device 20. Of course, the memory 21 may also include both internal and external storage devices of the computer device 20. In this embodiment, the memory 21 is generally used for storing an operating system and various application software installed in the computer device 20, such as the program codes of the generalized compressor starting apparatus in the above embodiments. Further, the memory 21 may also be used to temporarily store various types of data that have been output or are to be output.
Processor 22 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 22 is typically used to control the overall operation of the computer device 20. In this embodiment, the processor 22 is configured to run the program codes stored in the memory 21 or process data, for example, run a generalized compressor starting apparatus, so as to implement the generalized compressor starting method of the above embodiment.
The present embodiment also provides a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., on which a computer program is stored, which when executed by a processor implements corresponding functions. The computer readable storage medium of this embodiment is used for storing a generalized compressor starting apparatus, and when being executed by a processor, the generalized compressor starting method of the above embodiment is implemented.
While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.
Claims (10)
1. An electrical apparatus, characterized by comprising at least a motor and a compressor; wherein,
a pipeline is arranged between the air inlet pipe and the air outlet pipe of the compressor, and a valve is arranged on the pipeline; when the valve is in an open state, the air inlet pipe and the air outlet pipe are in a communicated state through a pipeline, and the pressure in the compressor is zero; when the valve is in a closed state, the air inlet pipe and the air outlet pipe are communicated through the interior of the compressor;
and the motor is used for driving the compressor to realize a compression function through the piston in a starting state.
2. The electrical device of claim 1, further comprising: a condenser, a dry filter, a capillary tube and an evaporator; the compressor, the condenser and the drying filter are sequentially communicated end to end, the communicated part of the air inlet pipe of the compressor and the outlet of the drying filter is simultaneously communicated with one end of the capillary pipe, and the other end of the capillary pipe is communicated with the evaporator;
refrigerant gas is input from an air inlet pipe of the compressor, compressed into high-temperature high-pressure hot vapor by the compressor and output into the condenser from an air outlet pipe of the compressor, the condenser condenses the high-temperature high-pressure hot vapor into high-temperature medium-pressure liquid, flows into the drying filter, is filtered by the drying filter, then enters the capillary tube, is throttled and depressurized by the capillary tube and then is changed into low-temperature low-pressure liquid, the low-temperature low-pressure liquid absorbs heat in the evaporator and is vaporized into saturated vapor, so that refrigeration is realized, and the saturated vapor is output to an air inlet pipe of the compressor through the capillary tube and is absorbed by the compressor for the next cycle.
3. A universal compressor starting method for an electric appliance according to claim 1 or 2, comprising:
when the motor is in a stop state, controlling the valve to be opened so as to release the pressure in the compressor to be zero and keep the opening state of the valve;
when the motor is started, identifying motor parameters;
determining a first control parameter corresponding to the current loop according to the recognized motor parameter, and controlling the current loop by using the first control parameter;
controlling the speed ring by using a preset second control parameter;
after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed; and in the process of controlling the valve to be closed and the process of keeping the valve in a closed state, adjusting the control parameters of the speed ring in a fuzzy control mode, and controlling the speed ring by adopting the adjusted third control parameters.
4. The generalized compressor starting method according to claim 3, wherein said controlling said valve to close comprises:
simulating a load value corresponding to the compressor in the process of controlling the valve to be closed;
and controlling the closing speed of the valve so that the increase rate of the load value is smaller than a set value.
5. The generalized compressor starting method according to claim 3, wherein said second control parameter is an empirical value.
6. A universal compressor starting device for an electrical apparatus according to claim 1 or 2, comprising:
the valve control module is used for controlling the valve to be opened when the motor is in a stop state so as to release the pressure in the compressor to be zero and keep the opening state of the valve; after the motor drives the compressor to stably operate through the piston, the valve is controlled to be closed;
the parameter identification module is used for identifying motor parameters when the motor is started;
the parameter determining module is used for determining a first control parameter corresponding to the current loop according to the recognized motor parameter;
the motor control module is used for controlling the current loop by utilizing the first control parameter and controlling the speed loop by utilizing a preset second control parameter;
and the parameter adjusting module is used for adjusting the control parameters of the speed ring in a fuzzy control mode in the process of controlling the valve to be closed by the valve control module and in the process of keeping the valve in a closed state, and sending the adjusted third control parameters to the motor control module so as to enable the motor control module to control the speed ring by adopting the adjusted third control parameters.
7. The starting device for the generalized compressor according to claim 6, wherein the valve control module, when controlling the valve to be closed, specifically comprises: simulating a load value corresponding to the compressor in the process of controlling the valve to be closed; and controlling the closing speed of the valve so that the increase rate of the load value is smaller than a set value.
8. The generalized compressor starting device according to claim 6, wherein the second control parameter is an empirical value.
9. Computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the generalized compressor starting method according to any one of claims 3 to 5 when executing the computer program.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when being executed by a processor, carries out the steps of the generalized compressor starting method according to any one of claims 3 to 5.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650287A (en) * | 1979-10-01 | 1981-05-07 | Sanyo Electric Co Ltd | Pump device |
| CN201269659Y (en) * | 2008-09-09 | 2009-07-08 | 海信（北京）电器有限公司 | Refrigerating circuit of refrigerator |
| CN103307819A (en) * | 2013-05-21 | 2013-09-18 | 澳柯玛股份有限公司 | Refrigerating system and method capable of regulating and controlling cold outputting capacity of compressor |
| CN104539211A (en) * | 2014-12-18 | 2015-04-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor parameter identification method and device |
| CN104613685A (en) * | 2014-12-26 | 2015-05-13 | 上海理工大学 | Refrigeration device capable of being rapidly started after being stopped with reduced starting torque |
| CN105703683A (en) * | 2016-03-09 | 2016-06-22 | 广东美的制冷设备有限公司 | Air conditioner, method and device for controlling starting of compressor of air conditioner |
| CN108649847A (en) * | 2018-05-23 | 2018-10-12 | 华南理工大学 | Motor PI attitude conirol methods based on frequency method and fuzzy control |
| CN108696210A (en) * | 2018-05-21 | 2018-10-23 | 东南大学 | Direct current generator current loop controller methods of self-tuning based on parameter identification |
| CN110323986A (en) * | 2019-06-04 | 2019-10-11 | 广东工业大学 | A kind of permanent-magnet synchronous motor rotor position angle evaluation method |
-
2020
- 2020-05-21 CN CN202010437939.XA patent/CN111648946A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5650287A (en) * | 1979-10-01 | 1981-05-07 | Sanyo Electric Co Ltd | Pump device |
| CN201269659Y (en) * | 2008-09-09 | 2009-07-08 | 海信（北京）电器有限公司 | Refrigerating circuit of refrigerator |
| CN103307819A (en) * | 2013-05-21 | 2013-09-18 | 澳柯玛股份有限公司 | Refrigerating system and method capable of regulating and controlling cold outputting capacity of compressor |
| CN104539211A (en) * | 2014-12-18 | 2015-04-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor parameter identification method and device |
| CN104613685A (en) * | 2014-12-26 | 2015-05-13 | 上海理工大学 | Refrigeration device capable of being rapidly started after being stopped with reduced starting torque |
| CN105703683A (en) * | 2016-03-09 | 2016-06-22 | 广东美的制冷设备有限公司 | Air conditioner, method and device for controlling starting of compressor of air conditioner |
| CN108696210A (en) * | 2018-05-21 | 2018-10-23 | 东南大学 | Direct current generator current loop controller methods of self-tuning based on parameter identification |
| CN108649847A (en) * | 2018-05-23 | 2018-10-12 | 华南理工大学 | Motor PI attitude conirol methods based on frequency method and fuzzy control |
| CN110323986A (en) * | 2019-06-04 | 2019-10-11 | 广东工业大学 | A kind of permanent-magnet synchronous motor rotor position angle evaluation method |
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