CN114353403B - Variable frequency condensing unit frequency control method, electronic equipment and storage medium - Google Patents
Variable frequency condensing unit frequency control method, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention provides a variable frequency condensing unit frequency control method, electronic equipment and a storage medium, wherein the method comprises the following steps: starting a variable-frequency condensing unit, and running until the load temperature is within a preset temperature range or the current defrosting period is finished by pulling Wen Pinlv; if the current defrosting cycle is finished, the load temperature is still higher than the upper limit value of the preset temperature range, the pull Wen Pinlv is raised, and the pull Wen Pinlv is used as a pull Wen Pinlv of the next defrosting cycle; if the load temperature is within the preset temperature range, using the pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, and running the condensing unit with a dimension Wen Pinlv until the current defrosting cycle is finished; judging whether the lowest temperature of the load is in the preset temperature range or not; if yes, taking the dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle; if not, the dimension Wen Pinlv is adjusted and the adjusted dimension Wen Pinlv is taken as dimension Wen Pinlv of the next defrosting cycle. The electronic device and the storage medium are for implementing the method.
Description
Technical Field
The invention relates to the technical field of variable frequency condensing units, in particular to a variable frequency condensing unit frequency control method, electronic equipment and a storage medium.
Background
For the direct-current variable-frequency compressor, the current common practice is to slowly raise the frequency at the starting time, and compared with the fixed-frequency compressor, the variable-frequency condensing unit has longer time to reach the steady state. Therefore, the frequency of the variable frequency compressor needs to be controlled to ensure that the condensing unit can reach stability as soon as possible after being started.
At present, when the variable frequency condensing unit is matched with loads such as a refrigerator and a freezer of different customers, the frequencies of pulling Wen Pinlv and maintaining temperature required to be set by the variable frequency condensing unit are different when the variable frequency condensing unit is aimed at different customers due to different loads required to be matched by different customers. It is common practice in the industry to have to do one-to-one matching debugging for each end product to determine the control frequency setting.
However, if frequency adjustment is performed once for each customer's terminal product, a large amount of workload is increased, and when the environment is greatly changed, the working efficiency of the variable frequency condensing unit is not optimal. When different customers are dealt with, the problem that the variable frequency condensing unit has poor refrigerating effect or cannot achieve the optimal energy-saving effect can be caused by setting a common frequency.
Therefore, it is necessary to invent a frequency control method of a variable frequency condensing unit to solve the above problems in the prior art.
Disclosure of Invention
The invention aims to provide a frequency control method, electronic equipment and a storage medium of a variable frequency condensing unit, which are used for solving the problems that in the prior art, frequency debugging is required for different loads to generate a large amount of workload, the variable frequency condensing unit is difficult to adapt to the environment to generate large change, the working efficiency cannot reach the optimum, the energy utilization rate is low, the refrigerating effect is poor and the like.
In order to solve the technical problems, the invention provides a frequency control method of a variable frequency condensing unit, which comprises the following steps:
step S1, starting the variable-frequency condensing unit, entering a temperature pulling stage, running the condensing unit by pulling Wen Pinlv until the temperature of a load is within a preset temperature range or the current defrosting period is finished, executing step S3 if the temperature of the load is within the preset temperature range, and executing step S2 if the temperature of the load is still higher than the upper limit value of the preset temperature range until the current defrosting period is finished;
step S2, lifting the pull Wen Pinlv, taking the lifted pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, and returning to the step S1;
step S3, taking the pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, entering a temperature maintaining stage, and operating the condensing unit in a mode of maintaining Wen Pinlv until the current defrosting cycle is finished;
step S4, judging whether the lowest temperature reached by the load is within the preset temperature range in the temperature maintaining stage, if so, executing step S5, and if not, executing step S6;
step S5, taking the dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle;
step S6, adjusting the dimension Wen Pinlv, and taking the adjusted dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle, and returning to execute step S1.
Optionally, in step S6, if the lowest temperature reached by the load is higher than the upper limit value of the preset temperature range in the current defrosting cycle, the dimension Wen Pinlv is increased; if the lowest temperature reached by the load is below the lower limit of the preset temperature range, the dimension Wen Pinlv is reduced.
Optionally, in step S2, the pull Wen Pinlv is raised to the average of the current pull Wen Pinlv and the highest limiting frequency.
Optionally, the temperature maintenance frequency is raised to an average value of the current temperature maintenance frequency and the final pull Wen Pinlv.
Optionally, the temperature maintenance frequency is reduced to an average value of the current temperature maintenance frequency and the lowest limiting frequency.
Optionally, an initial value of the pull Wen Pinlv is greater than or equal to an initial value of the dimension Wen Pinlv.
Optionally, if the lowest temperature reached by the load is lower than the lower limit value of the preset temperature range in the current defrosting cycle, the variable frequency condensing unit stops running, and after the temperature of the load rises, the step S1 is executed again.
Optionally, the start-stop time interval of the variable frequency condensing unit is more than 3 minutes.
The invention also provides an electronic device comprising a processor and a memory, the memory having stored thereon a computer program which, when executed by the processor, implements a method as described above.
The invention also provides a readable storage medium having stored therein a computer program which, when executed by a processor, implements a method as described above.
Compared with the prior art, the frequency control method, the electronic equipment and the storage medium of the variable frequency condensing unit have the following advantages:
(1) The frequency control method of the variable frequency condensing unit is completed by dividing the frequency control process of the variable frequency condensing unit into two stages, wherein: the step S1 and the step S2 are temperature pulling stages, and the temperature maintaining stages comprise a step S3, a step S4, a step S5 and a step S6. The temperature pulling stage can pull the load temperature to the preset temperature as soon as possible by continuously increasing the temperature of the load Wen Pinlv, the system can realize a self-adjusting function according to different loads, the frequency of frequency rising is automatically adjusted, the time for pulling the load temperature to the preset temperature is greatly shortened, and the operation efficiency and the refrigerating effect of the variable frequency condensing unit are improved. The temperature maintaining stage can adapt to the change of the operation environment of the variable frequency condensing unit by continuously adjusting the temperature maintaining Wen Pinlv, and finally the stability of maintaining the load temperature at the lowest frequency is achieved by the self-adaptive adjustment frequency of the system, so that the energy can be effectively saved by operating at the lowest frequency, the stability of the load temperature is maintained, and the refrigerating effect is effectively improved. The temperature pulling stage and the temperature maintaining stage are completed by automatic system adjustment, so that the workload of frequency debugging is reduced.
(2) The invention increases the average of the pull Wen Pinlv to the current pull Wen Pinlv and the highest limiting frequency in step S2. Therefore, the pull Wen Pinlv is ensured not to exceed the highest limiting frequency all the time, and the temperature reached by the load can be pulled to the preset temperature as soon as possible.
(3) In step S6, when the lowest temperature reached by the load during the current defrosting cycle is higher than the upper limit value of the preset temperature range, the dimension Wen Pinlv is raised; when the lowest temperature reached by the load is below the lower limit of the preset temperature range, the dimension Wen Pinlv is reduced. Thus, the process of adaptively adjusting the frequency of the system is realized, so that the system finally reaches a proper dimension Wen Pinlv to maintain the stability of the load temperature. In addition, dimension Wen Pinlv is adaptively adjusted by increasing the temperature frequency to the average of the current temperature frequency and the final pull Wen Pinlv, wherein: the final pull Wen Pinlv is a pull Wen Pinlv when the lowest temperature of the load is pulled within a preset temperature range, and the final pull temperature frequency is lower than the highest limit frequency. Therefore, the dimension Wen Pinlv can be effectively raised, and the situation that the dimension Wen Pinlv is suddenly raised too high to cause frequent start and stop of the variable frequency condenser unit to damage or influence the performance can be avoided. And the dimension Wen Pinlv is adaptively adjusted by reducing the dimension temperature frequency to the average value of the current dimension temperature frequency and the lowest limit frequency, so that the dimension Wen Pinlv is ensured not to be lower than the lowest limit frequency all the time, the dimension Wen Pinlv can be reduced to the greatest extent, and finally, the purpose of maintaining the stability of the load temperature at the lowest frequency is achieved, and the energy is effectively saved.
(4) According to the invention, by setting the initial value of the pull Wen Pinlv to be larger than or equal to the initial value of the dimension Wen Pinlv, the variable frequency condenser unit is ensured to be started by a higher pull Wen Pinlv, so that the temperature reached by a load is pulled to a preset temperature as soon as possible, the variable frequency condenser unit is ensured to maintain the load temperature by a lower dimension Wen Pinlv, and the energy conservation is facilitated.
(5) In step S6, if the lowest temperature reached by the load is lower than the lower limit value of the preset temperature range in the current defrosting cycle, the operation of the variable frequency condensing unit is stopped, and after the load temperature is raised, the operation returns to step S1, so that the load temperature is quickly raised to the preset temperature range by stopping the variable frequency condensing unit, and the temperature can be quickly maintained after restarting the operation. By setting the start-stop time interval of the variable frequency condensing unit to be more than 3 minutes, the load temperature can be guaranteed to rise back to the preset temperature range, and the damage or the performance influence caused by frequent start-stop of the variable frequency condensing unit is avoided.
(6) Since the electronic device provided by the invention comprises a processor and a memory, the memory stores a computer program, and the computer program realizes the method when being executed by the processor. Therefore, the electronic equipment provided by the invention can realize the self-adjusting function of the variable frequency condensing unit according to different loads, can pull the temperature reached by the load to the preset temperature as soon as possible, is beneficial to the system to adaptively adjust the frequency to maintain the stability of the load temperature at the lowest frequency, greatly reduces the workload of frequency debugging, is beneficial to the system to adapt to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
(7) Since the readable storage medium provided by the present invention stores a computer program, the computer program, when executed by a processor, implements the method described above. Therefore, the storage medium provided by the invention can realize the self-adjusting function of the variable frequency condensing unit according to different loads, can pull the temperature reached by the load to the preset temperature as soon as possible, is beneficial to the system to self-adaptively adjust the frequency to maintain the stability of the load temperature at the lowest frequency, greatly reduces the workload of frequency debugging, is beneficial to the system to adapt to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
Drawings
FIG. 1 is a schematic flow chart of a method for controlling the frequency of a variable frequency condensing unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the invention.
Detailed Description
To make the objects, advantages and features of the present invention more apparent, the frequency control method, electronic device and storage medium of the variable frequency condenser unit according to the present invention will be described in further detail with reference to fig. 1 and 2. It should be noted that, the drawings are in very simplified form and all use non-precise proportions, which are only used for the purpose of conveniently and clearly assisting in explaining the embodiments of the present invention, and are not intended to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any modification of the structure, change of the proportional relation or adjustment of the size, without affecting the efficacy and achievement of the present invention, should still fall within the scope covered by the technical content disclosed by the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The invention provides a frequency control method, electronic equipment and a storage medium of a variable frequency condensing unit, which can realize a self-regulating function according to different loads, so that the temperature of the load is pulled to a preset temperature as soon as possible, and meanwhile, the variable frequency condensing unit can maintain the stability of the load temperature at the lowest frequency by self-adaptively regulating the frequency, thereby reducing the workload of frequency debugging, adapting to the change of an operating environment, effectively saving energy and improving the refrigerating effect.
It should be noted that, the pull Wen Pinlv refers to an operation frequency of the variable frequency condensing unit that can effectively and quickly pull the load temperature to the preset temperature range. The dimension Wen Pinlv is the operation frequency of the variable frequency condensing unit capable of effectively maintaining the load temperature within the preset temperature range, and the variable frequency condensing unit is ensured not to be started and stopped frequently. The defrosting cycle can be freely changed by the user within the set limits. The preset temperature refers to a temperature reached by a user needing a load, and can be freely changed by the user within a set limit range. The lower limit value of the preset temperature range, which is lower than the preset temperature, can be freely set by a user; the upper limit value of the preset temperature range, which is higher than the preset temperature, can be freely set by a user.
In order to realize the above-mentioned idea, the present invention provides a method for controlling the frequency of a variable frequency condensing unit, please refer to fig. 1, which schematically shows a flow chart of the method for controlling the frequency of the variable frequency condensing unit according to an embodiment of the present invention. As shown in fig. 1, the frequency control method of the variable frequency condensing unit comprises the following steps:
step S1, starting the variable-frequency condensing unit, entering a temperature pulling stage, running the condensing unit by pulling Wen Pinlv until the temperature of a load is within a preset temperature range or the current defrosting period is finished, executing step S3 if the temperature of the load is within the preset temperature range, and executing step S2 if the temperature of the load is still higher than the upper limit value of the preset temperature range until the current defrosting period is finished;
step S2, lifting the pull Wen Pinlv, taking the lifted pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, and returning to the step S1;
therefore, the step S1 and the step S2 can be regarded as a temperature raising stage, the load temperature can be raised to the preset temperature as soon as possible by continuously raising the temperature of the load Wen Pinlv, the system can realize a self-adjusting function according to different loads, the frequency of raising the frequency is automatically adjusted, the time for raising the load temperature to the preset temperature is greatly shortened, and the operation efficiency and the refrigerating effect of the variable frequency condensing unit are improved.
It should be noted that, the defrosting duration, the defrosting cycle duration, the preset temperature and the preset temperature range may be freely changed by the user within a set limit range according to actual situations, and the invention is not limited in particular; the method for obtaining the lowest temperature reached by the load is not particularly limited in the invention, and any method capable of obtaining the lowest temperature reached by the load is within the scope of the invention.
Preferably, in step S2, "raise the pull Wen Pinlv", specifically, raise the pull Wen Pinlv to the average of the current pull Wen Pinlv and the highest limiting frequency, that is:
f n+1 ＝1/2(C-f n )+f n ；
wherein: n= (0, 1,2,3,) is the current number of defrosting cycles, f n For pull Wen Pinlv, f in the current defrost cycle n+1 For pull Wen Pinlv in the next defrost cycle, C is the highest limiting frequency of the variable frequency condensing unit.
Therefore, by increasing the average value of the current pull Wen Pinlv and the highest limit frequency to the pull Wen Pinlv, the pull Wen Pinlv is ensured not to exceed the highest limit frequency all the time, and the temperature reached by the load can be pulled to the preset temperature as soon as possible. It should be noted that, the highest limiting frequency is set according to a specific variable frequency condensing unit, and the present invention is not limited specifically.
Step S3, taking the pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, entering a temperature maintaining stage, and operating the condensing unit in a mode of maintaining Wen Pinlv until the current defrosting cycle is finished;
step S4, judging whether the lowest temperature reached by the load is within the preset temperature range in the temperature maintaining stage, if so, executing step S5, and if not, executing step S6;
step S5, taking the dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle;
step S6, adjusting the dimension Wen Pinlv, and taking the adjusted dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle, and returning to execute step S1.
Thus, the steps S3, S4, S5 and S6 are regarded as the maintenance phase, and the maintenance Wen Pinlv is continuously adjusted, so that the operation environment of the variable frequency condenser unit can be adapted to the change. The system self-adaptive frequency adjustment finally achieves the aim of maintaining the stability of the load temperature at the lowest frequency, so that the energy can be effectively saved when the system self-adaptive frequency adjustment system runs at the lowest frequency, and the refrigeration effect can be effectively improved when the stability of the load temperature is maintained. The frequency control method of the variable frequency condensing unit automatically adjusts the frequency through the system, so that the workload of frequency debugging is reduced. It should be noted that, the lower limit value of the preset temperature range and the upper limit value of the preset temperature range may be freely changed by the user within the set limit range, and the present invention is not limited in particular.
Preferably, in step S6, the adjusting the dimension Wen Pinlv of the variable frequency condensing unit specifically includes: if the lowest temperature reached by the load is higher than the upper limit value of the preset temperature range in the current defrosting period, the dimension Wen Pinlv is increased; if the lowest temperature reached by the load is below the lower limit of the preset temperature range, the dimension Wen Pinlv is reduced.
Preferably, if the lowest temperature reached by the load is lower than the lower limit value of the preset temperature range in the current defrosting cycle, the variable frequency condensing unit stops running, and after the temperature of the load rises, the step S1 is executed again. Therefore, the load temperature is beneficial to quickly rising to the preset temperature range through the stop operation of the variable frequency condensing unit, and the temperature can be quickly maintained after the operation is restarted.
Preferably, the defrosting period is an interval between two defrosting processes of the load, and after each period is finished, the variable frequency condensing unit is required to be stopped for defrosting for a period of time, and is restarted after defrosting is finished. It should be noted that, the defrosting duration, that is, the interval between two defrosting cycles, may be freely changed by the user within the set limit range according to the actual situation, and the present invention is not limited specifically.
Preferably, the start-stop time interval of the variable frequency condensing unit is more than 3 minutes. Therefore, the load temperature can be guaranteed to rise back to the preset temperature range, and the damage or the influence on the performance caused by frequent start-stop of the variable frequency condensing unit is avoided. It should be noted that, when the start-stop time interval of the variable frequency condensing unit is within 3 minutes, the variable frequency condensing unit is also within the protection scope of the present invention.
Preferably, the "raise the dimension Wen Pinlv", specifically, raise the temperature frequency to the average of the current temperature frequency and the final pull Wen Pinlv. Namely:
f′ n+1 ＝1/2(f n -f′ n )+f′ n 。
wherein: n= (0, 1,2,3,) is the current number of defrosting cycles, f '' n For dimension Wen Pinlv, f 'in the current defrosting cycle' n+1 Dimension Wen Pinlv, f for the next defrost cycle n For the final pull Wen Pinlv.
Because the final pull temperature frequency is lower than the highest limit frequency, the final pull Wen Pinlv is selected to adjust the dimension Wen Pinlv, so that the dimension Wen Pinlv can be effectively increased, and the situation that the dimension Wen Pinlv is suddenly increased too high and the temperature is reduced too quickly to cause frequent shutdown of the variable frequency condensing unit to damage or influence the performance can be avoided. It should be noted that the final pull Wen Pinlv refers to a pull Wen Pinlv when the lowest temperature reached by the load is within a preset temperature range.
Preferably, the "reducing the dimension Wen Pinlv" specifically reduces the temperature frequency to an average value of the current temperature frequency and the lowest limit frequency, that is:
f′ n+1 ＝-1/2(f′ n -B)+f′ n ；
wherein: n= (0, 1,2,3,) is the current number of defrosting cycles, f '' n For dimension Wen Pinlv, f 'in the current defrosting cycle' n+1 For dimension Wen Pinlv in the next defrost cycle, B is the lowest limit frequency of the variable frequency condensing unit.
By reducing the temperature maintenance frequency to the average value of the current temperature maintenance frequency and the lowest limit frequency, the temperature maintenance frequency not only ensures that the temperature maintenance Wen Pinlv is not lower than the lowest limit frequency all the time, but also reduces the temperature maintenance Wen Pinlv to the greatest extent, and finally, the stability of maintaining the load temperature at the lowest frequency is achieved, and the energy is effectively saved. It should be noted that, the minimum limiting frequency is set according to a specific variable frequency condenser unit machine, and the invention is not limited in particular.
Preferably, the initial value of the pull Wen Pinlv is greater than or equal to the initial value of the dimension Wen Pinlv, i.e., f 0 ≥f′ 0 Wherein: f (f) 0 For the initial value of pull Wen Pinlv, f' 0 Is the initial value of the dimension Wen Pinlv. Therefore, the variable frequency condensing unit is started by the higher pull Wen Pinlv, the temperature reached by the load is pulled to the preset temperature as soon as possible, the load temperature is maintained by the variable frequency condensing unit by the lower dimension Wen Pinlv, and the energy conservation is facilitated.
Note that, the initial value of the pull Wen Pinlv is high frequency, the initial value of the dimension Wen Pinlv is low frequency, and the initial values of the pull Wen Pinlv and the dimension Wen Pinlv are not particularly limited, and may be freely changed by the user within the set limit range. Furthermore, it is also within the scope of the present invention that the initial value of pull Wen Pinlv is less than the initial value of dimension Wen Pinlv.
Based on the same inventive concept, the present invention further provides an electronic device, please refer to fig. 2, which schematically shows a block structure schematic diagram of the electronic device according to an embodiment of the present invention. As shown in fig. 2, the electronic device comprises a processor 301 and a memory 303, the memory 303 having stored thereon a computer program which, when executed by the processor 301, implements the method as described above. The electronic equipment provided by the invention is beneficial to realizing the self-regulation function of the variable frequency condensing unit according to different loads, can pull the temperature reached by the load to the preset temperature as soon as possible, is beneficial to maintaining the stability of the load temperature at the lowest frequency by the self-adaptive regulation frequency of the system, greatly reduces the workload of frequency debugging, is beneficial to adapting the system to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
As shown in fig. 2, the electronic device further comprises a communication interface 302 and a communication bus 304, wherein the processor 301, the communication interface 302, and the memory 303 perform communication with each other via the communication bus 304. The communication bus 304 may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The communication bus 304 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus. The communication interface 302 is used for communication between the electronic device and other devices.
The processor 301 referred to in the present invention may be a central processing unit (Central Processing Unit, CPU), or other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor 301 or the like, the processor 301 being the control center of the electronic device, with various interfaces and lines connecting the various parts of the overall electronic device.
The memory 303 may be used to store the computer program, and the processor 301 may implement various functions of the electronic device by running or executing the computer program stored in the memory 303 and invoking data stored in the memory 303.
The memory 303 may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The invention also provides a readable storage medium having stored therein a computer program which, when executed by a processor, implements a method as described above. The readable storage medium provided by the invention is beneficial to realizing a self-regulating function according to different loads, can pull the temperature reached by the load to a preset temperature as soon as possible, is beneficial to maintaining the stability of the load temperature at the lowest frequency by the self-adaptive regulating frequency of the system, greatly reduces the workload of frequency debugging, is beneficial to adapting the system to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
The readable storage media of embodiments of the present invention may take the form of any combination of one or more computer-readable media. The readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer hard disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
It should be noted that the apparatus and methods disclosed in the embodiments herein may be implemented in other ways. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments herein. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments herein may be integrated together to form a single part, or the modules may exist alone, or two or more modules may be integrated to form a single part.
In summary, compared with the prior art, the liquid storage device and the compressor provided by the invention have the following advantages:
(1) The frequency control method of the variable frequency condensing unit is completed by dividing the frequency control process of the variable frequency condensing unit into two stages, wherein: the step S1 and the step S2 are temperature pulling stages, and the temperature maintaining stages comprise a step S3, a step S4, a step S5 and a step S6. The temperature pulling stage can pull the load temperature to the preset temperature as soon as possible by continuously increasing the temperature of the load Wen Pinlv, the system can realize a self-adjusting function according to different loads, the frequency of frequency rising is automatically adjusted, the time for pulling the load temperature to the preset temperature is greatly shortened, and the operation efficiency and the refrigerating effect of the variable frequency condensing unit are improved. The temperature maintaining stage can adapt to the change of the operation environment of the variable frequency condensing unit by continuously adjusting the temperature maintaining Wen Pinlv, and finally the stability of maintaining the load temperature at the lowest frequency is achieved by the self-adaptive adjustment frequency of the system, so that the energy can be effectively saved by operating at the lowest frequency, the stability of the load temperature is maintained, and the refrigerating effect is effectively improved. The temperature pulling stage and the temperature maintaining stage are completed by automatic system adjustment, so that the workload of frequency debugging is reduced.
(2) The invention increases the average of the pull Wen Pinlv to the current pull Wen Pinlv and the highest limiting frequency in step S2. Therefore, the pull Wen Pinlv is ensured not to exceed the highest limiting frequency all the time, and the temperature reached by the load can be pulled to the preset temperature as soon as possible.
(3) In step S6, when the lowest temperature reached by the load during the current defrosting cycle is higher than the upper limit value of the preset temperature range, the dimension Wen Pinlv is raised; when the lowest temperature reached by the load is below the lower limit of the preset temperature range, the dimension Wen Pinlv is reduced. Thus, the process of adaptively adjusting the frequency of the system is realized, so that the system finally reaches a proper dimension Wen Pinlv to maintain the stability of the load temperature. In addition, dimension Wen Pinlv is adaptively adjusted by increasing the temperature frequency to the average of the current temperature frequency and the final pull Wen Pinlv, wherein: the final pull Wen Pinlv is a pull Wen Pinlv when the lowest temperature of the load is pulled within a preset temperature range, and the final pull temperature frequency is lower than the highest limit frequency. Therefore, the dimension Wen Pinlv can be effectively raised, and the situation that the dimension Wen Pinlv is suddenly raised too high to cause frequent start and stop of the variable frequency condenser unit to damage or influence the performance can be avoided. And the dimension Wen Pinlv is adaptively adjusted by reducing the dimension temperature frequency to the average value of the current dimension temperature frequency and the lowest limit frequency, so that the dimension Wen Pinlv is ensured not to be lower than the lowest limit frequency all the time, the dimension Wen Pinlv can be reduced to the greatest extent, and finally, the purpose of maintaining the stability of the load temperature at the lowest frequency is achieved, and the energy is effectively saved.
(4) According to the invention, by setting the initial value of the pull Wen Pinlv to be larger than or equal to the initial value of the dimension Wen Pinlv, the variable frequency condenser unit is ensured to be started by a higher pull Wen Pinlv, so that the temperature reached by a load is pulled to a preset temperature as soon as possible, the variable frequency condenser unit is ensured to maintain the load temperature by a lower dimension Wen Pinlv, and the energy conservation is facilitated.
(5) In step S6, if the lowest temperature reached by the load is lower than the lower limit value of the preset temperature range in the current defrosting cycle, the operation of the variable frequency condensing unit is stopped, and after the load temperature is raised, the operation returns to step S1, so that the load temperature is quickly raised to the preset temperature range by stopping the variable frequency condensing unit, and the temperature can be quickly maintained after restarting the operation. By setting the start-stop time interval of the variable frequency condensing unit to be more than 3 minutes, the load temperature can be guaranteed to rise back to the preset temperature range, and the damage or the performance influence caused by frequent start-stop of the variable frequency condensing unit is avoided.
(6) Since the electronic device provided by the invention comprises a processor and a memory, the memory stores a computer program, and the computer program realizes the method when being executed by the processor. Therefore, the electronic equipment provided by the invention can realize the self-adjusting function of the variable frequency condensing unit according to different loads, can pull the temperature reached by the load to the preset temperature as soon as possible, is beneficial to the system to adaptively adjust the frequency to maintain the stability of the load temperature at the lowest frequency, greatly reduces the workload of frequency debugging, is beneficial to the system to adapt to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
(7) Since the readable storage medium provided by the present invention stores a computer program, the computer program, when executed by a processor, implements the method described above. Therefore, the storage medium provided by the invention can realize the self-adjusting function of the variable frequency condensing unit according to different loads, can pull the temperature reached by the load to the preset temperature as soon as possible, is beneficial to the system to self-adaptively adjust the frequency to maintain the stability of the load temperature at the lowest frequency, greatly reduces the workload of frequency debugging, is beneficial to the system to adapt to the change of the running environment, saves more energy sources and effectively improves the refrigerating effect.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The frequency control method of the variable frequency condensing unit is characterized by comprising the following steps of:
step S1, starting the variable-frequency condensing unit, entering a temperature pulling stage, running the condensing unit by pulling Wen Pinlv until the temperature of a load is within a preset temperature range or the current defrosting period is finished, executing step S3 if the temperature of the load is within the preset temperature range, and executing step S2 if the temperature of the load is still higher than the upper limit value of the preset temperature range until the current defrosting period is finished;
step S2, lifting the pull Wen Pinlv, taking the lifted pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, and returning to the step S1;
step S3, taking the pull Wen Pinlv as a pull Wen Pinlv of the next defrosting cycle, entering a temperature maintaining stage, and operating the condensing unit in a mode of maintaining Wen Pinlv until the current defrosting cycle is finished;
step S4, judging whether the lowest temperature reached by the load is within the preset temperature range in the temperature maintaining stage, if so, executing step S5, and if not, executing step S6;
step S5, taking the dimension Wen Pinlv as a dimension Wen Pinlv of the next defrosting cycle;
step S6, the dimension Wen Pinlv is adjusted, the adjusted dimension Wen Pinlv is used as a dimension Wen Pinlv of the next defrosting cycle, and the step S1 is executed.
2. The method according to claim 1, wherein in step S6, if the lowest temperature reached by the load is higher than the upper limit value of the preset temperature range in the current defrosting cycle, the dimension Wen Pinlv is increased; if the lowest temperature reached by the load is below the lower limit of the preset temperature range, the dimension Wen Pinlv is reduced.
3. The variable frequency condensing unit frequency control method according to claim 1, characterized by raising said pull Wen Pinlv to the average of the current pull Wen Pinlv and the highest limiting frequency in step S2.
4. The variable frequency condensing unit frequency control method of claim 2, wherein the temperature maintenance frequency is raised to an average of a current temperature maintenance frequency and a final pull Wen Pinlv.
5. The variable frequency condensing unit frequency control method of claim 2, wherein the temperature maintenance frequency is reduced to an average of a current temperature maintenance frequency and a lowest limit frequency.
6. The variable frequency condensing unit frequency control method of claim 1, wherein an initial value of the pull Wen Pinlv is greater than or equal to an initial value of the dimension Wen Pinlv.
7. The method according to claim 2, wherein if the lowest temperature reached by the load is lower than the lower limit value of the preset temperature range in the current defrosting cycle, the variable frequency condenser unit stops operating, and returns to step S1 after the load temperature rises.
8. The method of claim 7, wherein the start-stop time interval of the variable frequency condenser unit is 3 minutes or more.
9. An electronic device comprising a processor and a memory, the memory having stored thereon a computer program which, when executed by the processor, implements the method of any of claims 1 to 8.
10. A readable storage medium, characterized in that the readable storage medium has stored therein a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 8.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040098391A (en) * | 2003-05-14 | 2004-11-20 | 엘지전자 주식회사 | A compressor driving control method of air conditioner |
| KR20050111283A (en) * | 2004-05-21 | 2005-11-24 | 엘지전자 주식회사 | Control apparatus and method for multi air condintioner in bulding |
| CN105276914A (en) * | 2015-04-24 | 2016-01-27 | Tcl智能科技（合肥）有限公司 | Control method for frequency conversion compressor and refrigerator |
| CN105928316A (en) * | 2016-04-29 | 2016-09-07 | 合肥华凌股份有限公司 | Control method and system of inverter compressor, and refrigerator |
| CN106596154A (en) * | 2016-11-18 | 2017-04-26 | 浙江工业大学 | Variable frequency refrigerating compressor load starting and operation performance test system |
| CN111342733A (en) * | 2018-12-18 | 2020-06-26 | 青岛海尔智能技术研发有限公司 | Method and device for starting control of variable frequency compressor and computer storage medium |
-
2020
- 2020-10-13 CN CN202011090790.9A patent/CN114353403B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040098391A (en) * | 2003-05-14 | 2004-11-20 | 엘지전자 주식회사 | A compressor driving control method of air conditioner |
| KR20050111283A (en) * | 2004-05-21 | 2005-11-24 | 엘지전자 주식회사 | Control apparatus and method for multi air condintioner in bulding |
| CN105276914A (en) * | 2015-04-24 | 2016-01-27 | Tcl智能科技（合肥）有限公司 | Control method for frequency conversion compressor and refrigerator |
| CN105928316A (en) * | 2016-04-29 | 2016-09-07 | 合肥华凌股份有限公司 | Control method and system of inverter compressor, and refrigerator |
| CN106596154A (en) * | 2016-11-18 | 2017-04-26 | 浙江工业大学 | Variable frequency refrigerating compressor load starting and operation performance test system |
| CN111342733A (en) * | 2018-12-18 | 2020-06-26 | 青岛海尔智能技术研发有限公司 | Method and device for starting control of variable frequency compressor and computer storage medium |
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