CN115127270A - Method and device for determining current loop bandwidth of compressor and electronic equipment - Google Patents
Method and device for determining current loop bandwidth of compressor and electronic equipment Download PDFInfo
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- CN115127270A CN115127270A CN202210731515.3A CN202210731515A CN115127270A CN 115127270 A CN115127270 A CN 115127270A CN 202210731515 A CN202210731515 A CN 202210731515A CN 115127270 A CN115127270 A CN 115127270A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The disclosure relates to a method and a device for determining a bandwidth of a current loop of a compressor and electronic equipment, and relates to the technical field of bandwidth control. The method specifically comprises the following steps: acquiring the outer ring temperature of the compressor; obtaining the running current of the compressor; determining the current load state of the compressor according to the outer ring temperature; and determining the current loop bandwidth of the compressor according to the current load state and the running current, dividing the load state of the compressor through different outer ring temperatures, and determining the bandwidth correction value of the current loop in real time according to the load state and the current change rate of different compressors, so that the accuracy and the reliability of determining the current loop bandwidth of the compressor are improved.
Description
Technical Field
The present disclosure relates to the field of bandwidth control technologies, and in particular, to a method and an apparatus for determining a bandwidth of a current loop of a compressor, and an electronic device.
Background
In the operation process of the air conditioner compressor, under different load states, the current loop bandwidth of the compressor may have different optimal parameters, so that in the control process, the appropriate current loop parameters need to be accurately calculated, and more accurate driving control can be realized.
Disclosure of Invention
The invention provides a method and a device for determining the bandwidth of a current loop of a compressor and electronic equipment.
The technical scheme of the disclosure is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a method for determining a bandwidth of a compressor current loop, the method comprising: acquiring the outer ring temperature of the compressor; obtaining the running current of the compressor; determining the current load state of the compressor according to the outer ring temperature; and determining the current loop bandwidth of the compressor according to the current load state and the running current.
According to an embodiment of the present disclosure, the determining a current loop bandwidth of the compressor according to the current load state and the operation current includes: acquiring the current loop bandwidth of the compressor; determining a bandwidth correction value of the current loop according to the running current and the current load state; and determining the current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value.
According to an embodiment of the present disclosure, the determining a current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value includes: and correcting the current loop bandwidth according to the bandwidth correction value to obtain the current loop target bandwidth.
According to an embodiment of the present disclosure, the determining a bandwidth correction value of the current loop according to the operating current and the current load state includes: determining the current change rate of the compressor within a set time according to the running current; acquiring a current change rate threshold of the compressor; the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
According to an embodiment of the present disclosure, the determining a bandwidth correction value of the current loop according to the operating current and the current load state includes: and if the current load state is a second load state, determining that the bandwidth correction value of the current loop is a third correction value if the current change rate of the compressor is greater than the current change rate threshold, and otherwise, determining that the bandwidth correction value of the current loop is zero.
According to an embodiment of the present disclosure, the determining the current load state of the compressor according to the outer ring temperature comprises: acquiring an outer ring temperature threshold of the compressor; in response to the outer ring temperature of the compressor being greater than the outer ring temperature threshold, determining that the current load state of the compressor is a first load state; and in response to the outer ring temperature of the compressor being less than or equal to the outer ring temperature threshold, determining that the current load state of the compressor is a second load state.
According to a second aspect of embodiments of the present disclosure, there is provided an apparatus for determining a compressor current loop bandwidth, the apparatus comprising: the first acquisition module is used for acquiring the outer ring temperature of the compressor; the second acquisition module is used for acquiring the running current of the compressor; the first determining module is used for determining the current load state of the compressor according to the outer ring temperature; and the second determining module is used for determining the current loop bandwidth of the compressor according to the current load state and the running current.
According to an embodiment of the disclosure, the second determining module is further configured to: acquiring the current loop bandwidth of the compressor; determining a bandwidth correction value of the current loop according to the running current and the current load state; and determining the current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value.
According to an embodiment of the disclosure, the second determining module is further configured to: and correcting the current loop bandwidth according to the bandwidth correction value to obtain the current loop target bandwidth.
According to an embodiment of the disclosure, the second determining module is further configured to: determining the current change rate of the compressor within a set time length according to the running current; acquiring a current change rate threshold of the compressor; the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
According to an embodiment of the disclosure, the second determining module is further configured to: and if the current load state is a second load state, determining that the bandwidth correction value of the current loop is a third correction value if the current change rate of the compressor is greater than the current change rate threshold, and otherwise, determining that the bandwidth correction value of the current loop is zero.
According to an embodiment of the disclosure, the first determining module is further configured to: acquiring an outer ring temperature threshold of the compressor; in response to the outer ring temperature of the compressor being greater than the outer ring temperature threshold, determining that the current load state of the compressor is a first load state; and in response to the outer ring temperature of the compressor being less than or equal to the outer ring temperature threshold, determining that the current load state of the compressor is a second load state.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including: a processor; a memory for storing the processor-executable instructions; wherein the processor is configured to execute the instructions to implement the method for determining the bandwidth of the compressor current loop as provided in the embodiment of the first aspect of the present disclosure.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium, wherein instructions, when executed by a processor of an electronic device, enable the electronic device to perform the method for determining a compressor current loop bandwidth as provided in embodiments of the first aspect of the present disclosure.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the method for determining a compressor current loop bandwidth as provided in the first aspect of the present disclosure.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
according to the method for determining the current loop bandwidth of the compressor, the outer ring temperature of the compressor is obtained, the running current of the compressor is obtained, the current load state of the compressor is determined according to the outer ring temperature, and the current loop bandwidth of the compressor is determined according to the current load state and the running current. Therefore, the load state of the compressor is divided through different outer ring temperatures, and the bandwidth correction value of the current loop is determined in real time according to the load state and the current change rate of different compressors, so that the accuracy and the reliability of determining the current loop bandwidth of the compressor are improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.
FIG. 1 is a flow chart diagram illustrating a method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 2 is a flow chart diagram illustrating another method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 3 is a flow chart diagram illustrating another method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 4 is a flow chart diagram illustrating another method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 5 is a flow chart diagram illustrating another method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 6 is a schematic diagram illustrating a method for determining compressor current loop bandwidth in accordance with an exemplary embodiment.
FIG. 7 is a block diagram illustrating a compressor current loop bandwidth determination arrangement in accordance with an exemplary embodiment.
FIG. 8 is a block diagram of an electronic device shown in accordance with an example embodiment.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in other sequences than those illustrated or described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic flow chart of a method for determining a bandwidth of a current loop of a compressor according to an embodiment of the present disclosure.
As shown in fig. 1, the method for determining the bandwidth of the current loop of the compressor includes the following steps:
and S101, acquiring the outer ring temperature of the compressor.
Wherein, the outer ring temperature refers to the outdoor environment temperature.
In the present disclosure, the specific manner of obtaining the temperature of the outer ring of the compressor is not limited, and the temperature may be obtained according to actual conditions.
OptionallyAlternatively, the temperature sensor may be used for sampling to obtain the outer ring temperature T of the compressor Outer ring 。
And S102, acquiring the running current of the compressor.
The operating current refers to a current of the compressor in an operating state.
Since the load power of the compressor is constantly changed, the operation current of the compressor is also constantly changed.
In the present application, the specific manner of obtaining the operating current of the compressor is not limited, and the operating current may be obtained according to actual situations.
Alternatively, the operation current of the compressor may be acquired using an ammeter.
And S103, determining the current load state of the compressor according to the outer ring temperature.
In the embodiment of the present disclosure, after the outer ring temperature is obtained, the current load state of the compressor may be determined according to the outer ring temperature.
It should be noted that, the present disclosure does not limit the specific manner of determining the current load state of the compressor according to the outer ring temperature, and the determination may be performed according to actual situations.
Alternatively, an outer ring temperature threshold may be preset, and the current load state of the compressor may be further determined according to the outer ring temperature and the outer ring temperature threshold.
And S104, determining the current loop bandwidth of the compressor according to the current load state and the running current.
In the embodiment of the present disclosure, after the current load state and the operating current of the compressor are obtained, the bandwidth correction value of the current loop may be determined according to the current load state and the operating current of the compressor, and then the current loop bandwidth of the compressor may be determined according to the bandwidth correction value of the current loop.
According to the method for determining the current loop bandwidth of the compressor, the current load state of the compressor is determined according to the outer ring temperature by acquiring the outer ring temperature of the compressor and the running current of the compressor, and the current loop bandwidth of the compressor is determined according to the current load state and the running current. According to the method and the device, the load states of the compressors are divided through different outer ring temperatures, the bandwidth correction value of the current ring is determined in real time according to the load states and the current change rates of the different compressors, and the accuracy and the reliability of determining the current ring bandwidth of the compressors are improved.
Fig. 2 is a schematic flow chart of a method for determining a current loop bandwidth of a compressor according to an embodiment of the present disclosure, and a specific process for determining a current loop bandwidth of a compressor according to a current load state and an operating current is explained with reference to fig. 2, based on the above embodiment, including the following steps:
s201, acquiring the current loop bandwidth of the compressor.
The current loop refers to a current feedback system, generally refers to a mode of connecting an output current to a processing link in a positive feedback or negative feedback mode, and improves the performance of the system by improving the stability of the current.
Optionally, the current loop bandwidth of the compressor may be obtained according to the current loop bandwidth parameter of the compressor.
And S202, determining a bandwidth correction value of the current loop according to the running current and the current load state.
In the embodiment of the present disclosure, after the operating current is obtained, the current change rate within the set time may be obtained, and then the current loop bandwidth correction value may be determined according to the current load state and the current change rate.
And S203, determining the current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value.
In the embodiment of the present disclosure, after the current loop bandwidth and the bandwidth correction value are obtained, the current loop bandwidth of the compressor may be determined according to the current loop bandwidth and the bandwidth correction value.
Furthermore, the current loop bandwidth can be corrected according to the bandwidth correction value, so that the current loop target bandwidth is obtained.
Alternatively, the sum of the current loop bandwidth and the bandwidth correction value may be used as the current loop bandwidth of the compressor.
Fig. 3 is a schematic flow chart of a method for determining a bandwidth of a current loop of a compressor according to an embodiment of the present disclosure, and a process for determining a bandwidth correction value of the current loop according to an operating current and a current load state is explained with reference to fig. 3, based on the above embodiment, including the following steps:
and S301, determining the current change rate of the compressor in a set time length according to the running current.
It should be noted that, in the present disclosure, the setting of the set time length is not limited, and the setting may be performed according to actual situations.
Alternatively, the set time period t may be set to 40 s.
Further, the current compressor currents a1 and a2 can be recorded every set time length of 40s after the compressor is started.
Alternatively, after obtaining the compressor currents A1, A2 and the set time period t, the rate of change of current to the compressor over the set time period may be determined.
For example, the rate of change of current V x ＝(A1﹣A2)/t。
And S302, acquiring a current change rate threshold of the compressor.
It should be noted that, in the present disclosure, the setting of the current change rate threshold is not limited, and may be set according to actual situations.
Alternatively, the current change rate threshold V may be set to 0.05A/s.
S303, the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
The first load state refers to a state in which the load on the compressor is high.
In the disclosed embodiment, if the current change rate of the compressor is a first load state when the current load state of the compressor is the first load stateGreater than a current rate of change threshold, i.e. V x And if the voltage is more than V, determining the bandwidth correction value of the current loop as a first correction value.
In the present disclosure, the setting of the first correction value is not limited, and may be set according to actual conditions.
Alternatively, the first correction value may be set to 180 rad/s.
Further, when the first correction value is 180rad/s and the current loop bandwidth is a rad/s, the current loop target bandwidth is determined to be (180+ a) rad/s.
In the disclosed embodiment, when the current load state of the compressor is the first load state, if the current change rate of the compressor is less than or equal to the current change rate threshold, i.e., V x And determining the bandwidth correction value of the current loop as a second correction value if the bandwidth correction value is less than or equal to V.
In the present disclosure, the setting of the second correction value is not limited, and may be set according to actual conditions.
Alternatively, the second correction value may be set to 130 rad/s.
Further, when the second correction value is 130rad/s and the current loop bandwidth is a rad/s, it is determined that the current loop target bandwidth is (130+ a) rad/s.
And if the current load state is a second load state, determining that the bandwidth correction value of the current loop is a third correction value if the current change rate of the compressor is greater than the current change rate threshold, and otherwise, determining that the bandwidth correction value of the current loop is zero.
The second load state refers to a state in which the load on the compressor is low.
In the embodiment of the present disclosure, when the current load state of the compressor is the second load state, if the current change rate of the compressor is greater than the current change rate threshold, that is, Vx > V, the bandwidth correction value of the current loop is determined to be a third correction value.
In the present disclosure, the setting of the third correction value is not limited, and may be set according to actual conditions.
Alternatively, the third correction value may be set to 80 rad/s.
Further, when the third correction value is 80rad/s and the current loop bandwidth is a rad/s, the current loop target bandwidth is determined to be (80+ a) rad/s.
In the disclosed embodiment, when the current load state of the compressor is the second load state, if the current change rate of the compressor is less than or equal to the current change rate threshold, i.e., V x And if the voltage is less than or equal to V, determining the bandwidth correction value of the current loop to be zero.
Further, when the bandwidth correction value is zero and the current loop bandwidth is a rad/s, the current loop target bandwidth is determined to be a rad/s, namely the current loop bandwidth.
Therefore, the method for determining the current loop bandwidth of the compressor is provided by the disclosure, the current load state of the compressor is determined according to the outer ring temperature by acquiring the outer ring temperature of the compressor and the running current of the compressor, and the current loop bandwidth of the compressor is determined according to the current load state and the running current. According to the method and the device, the load states of the compressors are divided through different outer ring temperatures, the bandwidth correction value of the current ring is determined in real time according to the load states and the current change rates of the different compressors, and the accuracy and the reliability of determining the current ring bandwidth of the compressors are improved.
Fig. 4 is a schematic flow chart of a method for determining a current loop bandwidth of a compressor according to an embodiment of the present disclosure, and a process for determining a current load state of the compressor according to an outer loop temperature is explained with reference to fig. 4 on the basis of the above embodiment, including the following steps:
s401, acquiring an outer ring temperature threshold of the compressor.
It should be noted that, in the present disclosure, the setting of the outer ring temperature threshold of the compressor is not limited, and may be set according to actual situations.
Alternatively, the outer ring temperature threshold T of the compressor may be set to 40 ℃.
S402, in response to the fact that the outer ring temperature of the compressor is larger than the outer ring temperature threshold value, determining that the current load state of the compressor is a first load state.
In the embodiment of the present disclosure, after the outer ring temperature threshold of the compressor is obtained, the current load state of the compressor may be determined according to the outer ring temperature of the compressor and the outer ring temperature threshold.
Alternatively, when the outer ring temperature of the compressor is greater than the outer ring temperature threshold, T Outer ring And > T, the current load state of the compressor is determined to be the first load state, namely the state with higher load of the compressor.
And S403, in response to that the outer ring temperature of the compressor is less than or equal to the outer ring temperature threshold value, determining that the current load state of the compressor is a second load state.
Alternatively, when the outer ring temperature of the compressor is less than or equal to the outer ring temperature threshold, i.e., T Outer ring And when the load is less than or equal to T, determining that the current load state of the compressor is a second load state, namely a state with higher load of the compressor.
Therefore, the method for determining the current loop bandwidth of the compressor can accurately obtain the current load state of the compressor through the outer loop temperature threshold value, and lays a foundation for accurately obtaining the target bandwidth of the current loop.
Fig. 5 is a flow chart of a method for determining a compressor current loop bandwidth according to an embodiment of the present disclosure, including the steps of:
s501, obtaining the outer ring temperature of the compressor.
And S502, acquiring an outer ring temperature threshold of the compressor.
And S503, in response to the fact that the outer ring temperature of the compressor is greater than the outer ring temperature threshold value, determining that the current load state of the compressor is a first load state.
And S504, in response to the fact that the outer ring temperature of the compressor is smaller than or equal to the outer ring temperature threshold value, determining that the current load state of the compressor is a second load state.
And S505, acquiring the running current of the compressor.
And S506, acquiring a current change rate threshold of the compressor.
S507, the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
And S508, the current load state is a second load state, if the current change rate of the compressor is greater than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a third correction value, and if not, the bandwidth correction value of the current loop is determined to be zero.
And S509, acquiring the current loop bandwidth of the compressor.
And S5010, correcting the current loop bandwidth according to the bandwidth correction value to obtain the current loop target bandwidth.
In summary, as shown in fig. 6, the outer ring temperature of the compressor may be sampled to obtain the outer ring temperature T of the compressor Outer ring Optionally, the sampled outer ring temperature may be subjected to filtering processing through program processing, and a more accurate outer ring block temperature is obtained through analog-to-digital (AD) conversion, further, a load state of the compressor may be determined according to the outer ring temperature and the outer ring temperature of the current ring partition, that is, an outer ring temperature threshold, optionally, when the outer ring temperature of the compressor is greater than the outer ring temperature threshold, the current load state of the compressor is determined to be a first load state, the current compressor current may be recorded once every current change time threshold, that is, a set duration, after the compressor is started, and then the current change rate V is a difference current/set duration, when the current change rate is greater than the current change threshold, the current ring bandwidth is a current bandwidth + a current ring bandwidth high load correction threshold 1 (a first correction value), and when the current change rate is less than or equal to the current change threshold, the current loop bandwidth is equal to the current bandwidth + the current loop bandwidth high load correction threshold 2 (the second correction value), and optionally, when the outer ring temperature of the compressor is less than or equal to the outer ring temperature threshold, it is determined that the compressor is operatedThe current load state of the compressor is a second load state, the current of the compressor can be recorded once through a current change time threshold value, namely a set time length, after the compressor is started, the current change rate is equal to the difference current/the set time length, when the current change rate is larger than the current change threshold value, the current loop bandwidth is equal to the current bandwidth + the current loop bandwidth low-load correction threshold value 3 (a first correction value), and when the current change rate is smaller than or equal to the current change threshold value, the current loop bandwidth is kept unchanged, namely the correction value is zero.
Further, the present disclosure may preset a correction period, and when the correction period is reached, the current loop bandwidth may be corrected in real time according to the bandwidth correction value according to the above method, so that a suitable current loop parameter may be accurately determined to implement more accurate driving control.
To sum up, in the method for determining the current loop bandwidth of the compressor according to the embodiment of the present disclosure, the current loop bandwidth of the compressor is determined according to the current load state and the operating current of the compressor by obtaining the outer ring temperature of the compressor and obtaining the operating current of the compressor. According to the method and the device, the load state of the compressor is divided through different outer ring temperatures, the bandwidth correction value of the current ring is determined in real time according to the load state and the current change rate of different compressors, and the accuracy and the reliability of determining the current ring bandwidth of the compressor are improved.
Further, the present disclosure may preset a correction period, and when the correction period is reached, the present current loop bandwidth may be corrected in real time according to the bandwidth correction value according to the above method,
FIG. 7 is a block diagram illustrating a compressor current loop bandwidth determination apparatus in accordance with an exemplary embodiment.
As shown in fig. 7, the apparatus 1000 for determining the bandwidth of the current loop of the compressor includes: a first acquisition module 110, a second acquisition module 120, a first determination module 130, and a second determination module 140.
A first obtaining module 110, configured to obtain an outer ring temperature of the compressor;
a second obtaining module 120, configured to obtain an operating current of the compressor;
a first determining module 130, configured to determine a current load state of the compressor according to the outer ring temperature;
a second determining module 140, configured to determine a current loop bandwidth of the compressor according to the current load state and the operating current.
Further, the second determining module 140 is further configured to: acquiring the current loop bandwidth of the compressor; determining a bandwidth correction value of the current loop according to the running current and the current load state; and determining the current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value.
Further, the second determining module 140 is further configured to: and correcting the current loop bandwidth according to the bandwidth correction value to obtain a current loop target bandwidth.
Further, the second determining module 140 is further configured to: determining the current change rate of the compressor within a set time length according to the running current; acquiring a current change rate threshold of the compressor; the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
Further, the second determining module 140 is further configured to: and if the current load state is a second load state, determining that the bandwidth correction value of the current loop is a third correction value if the current change rate of the compressor is greater than the current change rate threshold, and otherwise, determining that the bandwidth correction value of the current loop is zero.
Further, the first determining module 120 is further configured to: acquiring an outer ring temperature threshold of the compressor; in response to the outer ring temperature of the compressor being greater than the outer ring temperature threshold, determining that the current load state of the compressor is a first load state; and in response to the outer ring temperature of the compressor being less than or equal to the outer ring temperature threshold, determining that the current load state of the compressor is a second load state.
According to the determining device for the current loop bandwidth of the compressor, the current load state of the compressor is determined according to the outer ring temperature by acquiring the outer ring temperature of the compressor and the running current of the compressor, and the current loop bandwidth of the compressor is determined according to the current load state and the running current. According to the method and the device, the load state of the compressor is divided through different outer ring temperatures, the bandwidth correction value of the current ring is determined in real time according to the load state and the current change rate of different compressors, and the accuracy and the reliability of determining the current ring bandwidth of the compressor are improved.
In order to implement the above embodiments, the present disclosure further provides an electronic device, as shown in fig. 8, where the electronic device 2000 includes: a processor 201; one or more memories 202 for storing instructions executable by the processor 201; wherein the processor 201 is configured to execute the method for determining the bandwidth of the compressor current loop according to the above embodiment. The processor 201 and the memory 202 are connected by a communication bus.
To implement the above embodiments, the present disclosure also provides a computer-readable storage medium comprising instructions, such as the memory 202 comprising instructions, executable by the processor 201 of the device 1000 to perform the above method. Alternatively, the computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In order to implement the above embodiments, the present disclosure also provides a computer program product, including a computer program, wherein the computer program is executed by a processor to implement the method for determining a compressor current loop bandwidth according to the above embodiments.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A method for determining a bandwidth of a compressor current loop, comprising:
acquiring the outer ring temperature of the compressor;
obtaining the running current of the compressor;
determining the current load state of the compressor according to the outer ring temperature;
and determining the current loop bandwidth of the compressor according to the current load state and the running current.
2. The method of claim 1, wherein said determining a current loop bandwidth of said compressor based on said present load condition and said operating current comprises:
acquiring the current loop bandwidth of the compressor;
determining a bandwidth correction value of the current loop according to the running current and the current load state;
and determining the current loop bandwidth of the compressor according to the current loop bandwidth and the bandwidth correction value.
3. The method of claim 2, wherein said determining a current loop bandwidth of said compressor based on said current loop bandwidth and said bandwidth correction comprises:
and correcting the current loop bandwidth according to the bandwidth correction value to obtain the current loop target bandwidth.
4. The method of claim 2, wherein determining the bandwidth correction for the current loop based on the operating current and the current load condition comprises:
determining the current change rate of the compressor within a set time length according to the running current;
acquiring a current change rate threshold of the compressor;
the current load state of the compressor is a first load state, if the current change rate of the compressor is larger than the current change rate threshold value, the bandwidth correction value of the current loop is determined to be a first correction value, and if not, the bandwidth correction value of the current loop is determined to be a second correction value.
5. The method of claim 4, wherein determining the bandwidth correction for the current loop based on the operating current and the current load condition comprises:
and if the current load state is a second load state, determining that the bandwidth correction value of the current loop is a third correction value if the current change rate of the compressor is greater than the current change rate threshold, and otherwise, determining that the bandwidth correction value of the current loop is zero.
6. The method of any one of claims 1-5, wherein said determining a current load state of said compressor based on said outer ring temperature comprises:
acquiring an outer ring temperature threshold of the compressor;
in response to the outer ring temperature of the compressor being greater than the outer ring temperature threshold, determining that the current load state of the compressor is a first load state;
and in response to the outer ring temperature of the compressor being less than or equal to the outer ring temperature threshold, determining that the current load state of the compressor is a second load state.
7. A device for determining the bandwidth of a compressor current loop, characterized in that it performs the determination method according to any one of claims 1 to 6, said device comprising:
the first acquisition module is used for acquiring the outer ring temperature of the compressor;
the second acquisition module is used for acquiring the running current of the compressor;
the first determining module is used for determining the current load state of the compressor according to the outer ring temperature;
and the second determining module is used for determining the current loop bandwidth of the compressor according to the current load state and the running current.
8. An electronic device, comprising: memory, processor and computer program stored on said memory and executable on said processor, said processor when executing said program implementing a method for determining a compressor current loop bandwidth as claimed in any one of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method for determining a compressor current loop bandwidth according to any one of claims 1 to 6.
10. A computer program product, characterized in that it comprises a computer program which, when being executed by a processor, implements the method for determining the compressor current loop bandwidth according to any one of claims 1-6.
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