CN114498507A - Conductive bar cooling system, control method and control device thereof, and electronic equipment - Google Patents
Conductive bar cooling system, control method and control device thereof, and electronic equipment Download PDFInfo
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- CN114498507A CN114498507A CN202210138824.XA CN202210138824A CN114498507A CN 114498507 A CN114498507 A CN 114498507A CN 202210138824 A CN202210138824 A CN 202210138824A CN 114498507 A CN114498507 A CN 114498507A
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- 238000001816 cooling Methods 0.000 title claims abstract description 137
- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000001105 regulatory effect Effects 0.000 claims abstract description 111
- 230000001276 controlling effect Effects 0.000 claims abstract description 78
- 239000002826 coolant Substances 0.000 claims abstract description 72
- 238000012545 processing Methods 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 description 14
- 239000003507 refrigerant Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/10—Cooling
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Abstract
The invention provides a conductive bar cooling system, a control method and a control device thereof, and electronic equipment. The conductive bar cooling system comprises a coolant pump, a cooler, a flow regulating valve and a cooling pipeline, wherein the cooling pipeline is connected with the conductive bar, and coolant circulates in the conductive bar cooling system and the conductive bar to dissipate heat of the conductive bar; the control method comprises the following steps: acquiring the temperature of the conductive bar; if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened; after the flow regulating valve is opened, if the duration that the temperature of the conducting bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase. The invention can reduce the temperature rise rate of the conductive bar under the condition of larger load and improve the power transmission and distribution capacity of the conductive bar.
Description
Technical Field
The invention relates to the technical field of electric power safety, in particular to a conductive bar cooling system, a control method and a control device thereof, and electronic equipment.
Background
Large-size buses such as a conducting bar and the like are widely applied to various large-current industrial scenes and large-size power transmission equipment. When the conductive bar is used, along with the increase of load, the resistance of the conductive bar rises, the corresponding heat productivity rises, the temperature rise of the conductive bar is too high, and the power transmission and distribution capacity of the conductive bar is limited.
At present, the heat dissipation of most of the conductive bars is mainly natural cooling and air cooling, and the heat regulation capacity is limited. In order to ensure the power transmission and distribution capacity of the conductive bar, selection needs to be performed based on the highest temperature rise under the rated power transmission and distribution capacity, so that the conductive bar is generally selected to be large, and the power transmission and distribution capacity of the conductive bar is relatively low.
Disclosure of Invention
The embodiment of the invention provides a conductive bar cooling system, a control method, a control device and electronic equipment thereof, which can reduce the temperature rise rate of a conductive bar under a larger load and improve the power transmission and distribution capacity of the conductive bar.
In a first aspect, an embodiment of the present invention provides a method for controlling a cooling system of a conducting bar, where the cooling system of the conducting bar includes a coolant pump, a cooler, a flow rate adjusting valve, and a cooling pipeline, the cooling pipeline is connected to the conducting bar, and coolant circulates in the cooling system of the conducting bar and the conducting bar to dissipate heat of the conducting bar; the control method comprises the following steps: acquiring the temperature of the conductive bar; if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened; and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
On one hand, compared with natural cooling and air cooling, the method provided by the embodiment of the invention has the advantages that the secondary refrigerant circulates in the conductive bar to radiate heat for the conductive bar, so that the heat radiation speed of the conductive bar is higher, the regulation capacity of the heat radiation of the conductive bar is improved, the temperature rise rate of the conductive bar under a larger load is reduced, and the power transmission and distribution capacity of the conductive bar is improved. On the other hand, when the temperature of the conductive bar is higher than the first set temperature, the control flow regulating valve is controlled to open, the initial opening of the flow regulating valve is not the maximum opening when the flow regulating valve is opened, and when the duration of the temperature of the conductive bar higher than the first set temperature is longer than the first set time, the control flow regulating valve is controlled to increase the opening, so that the flow velocity of the secondary refrigerant in the conductive bar is improved, the heat dissipation capacity of a cooling system on the conductive bar is improved, the temperature rise rate of the conductive bar is reduced, and the power transmission and distribution capacity of the conductive bar is further improved.
In one possible implementation manner, after the controlling the opening degree of the flow regulating valve is increased, the method further includes: and if the opening degree of the flow regulating valve is increased to the maximum opening degree and the duration of the maximum opening degree is longer than a second set duration, controlling the cooling fan of the cooler to be opened.
In one possible implementation, controlling the increase in the opening degree of the flow rate adjustment valve includes: calculating the temperature rise rate of the conductive bar; if the temperature rise rate of the conducting bar is less than or equal to the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a first step speed; and if the temperature rise rate of the conducting bar is greater than the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a second stepping speed, wherein the first stepping speed is less than the second stepping speed.
In one possible implementation manner, after controlling the cooling fan of the cooler to be turned on, the method further includes: if the temperature of the conductive bar is lower than a second set temperature, controlling a cooling fan of the cooler to be turned off, wherein the second set temperature is lower than the first set temperature; and after the cooling fan of the cooler is controlled to be closed, if the duration of the closed state of the cooling fan is longer than a third set duration, controlling the flow regulating valve to be closed.
In one possible implementation manner, the control method further includes: and when the temperature of the conductive bar is not more than the first set temperature and not less than the second set temperature, controlling the opening of the flow regulating valve to be reduced.
In one possible implementation manner, the control method further includes: when the temperature is higher than a first set temperature, controlling the coolant pump to operate at a first frequency; when the temperature is not higher than the first set temperature, controlling the coolant pump to operate at a second frequency; the first frequency is greater than the second frequency.
In a second aspect, an embodiment of the present invention provides a control device for a cooling system of a conducting bar, where the cooling system of the conducting bar includes a coolant pump, a cooler, a flow regulating valve, and a cooling pipeline, the cooling pipeline is connected to the conducting bar, and coolant circulates in the cooling system of the conducting bar and the conducting bar to dissipate heat of the conducting bar; the control device includes: a communication module and a processing module; the communication module is used for acquiring the temperature of the conductive bar; the processing module is used for controlling the opening of the flow regulating valve if the temperature of the conducting bar is greater than a first set temperature, and the initial opening of the flow regulating valve is not the maximum opening when the flow regulating valve is opened; and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
In a possible implementation manner, the processing module is further configured to control the cooling fan of the cooler to be turned on if the opening degree of the flow regulating valve is increased to the maximum opening degree, and the duration of the maximum opening degree is longer than a second set duration.
In a possible implementation manner, the processing module is specifically configured to calculate a temperature rise rate of the conductive bar; if the temperature rise rate of the conducting bar is less than or equal to the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a first stepping speed; and if the temperature rise rate of the conducting bar is greater than the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a second stepping speed, wherein the first stepping speed is less than the second stepping speed.
In a possible implementation manner, the processing module is further configured to control a cooling fan of the cooler to be turned off if the temperature of the conductive bar is less than a second set temperature, where the second set temperature is less than the first set temperature; and after the cooling fan of the cooler is controlled to be closed, if the duration of the closed state of the cooling fan is longer than a third set duration, controlling the flow regulating valve to be closed.
In a possible implementation manner, the processing module is further configured to control the opening degree of the flow regulating valve to decrease when the temperature of the conductive bar is not greater than the first set temperature and not less than the second set temperature.
In one possible implementation manner, the processing module is further configured to control the coolant pump to operate at a first frequency when the temperature is greater than a first set temperature; when the temperature is not higher than the first set temperature, controlling the coolant pump to operate at a second frequency; the first frequency is greater than the second frequency.
In a third aspect, an embodiment of the present invention provides a cooling system for a conductive bar, where the cooling system for a conductive bar includes a coolant pump, a cooler, a cooling pipeline, a flow regulating valve, a temperature sensor, and a control device; the first end of the coolant pump is connected with the second end of the cooler through a cooling pipeline, the first end of the cooler is connected with the second end of the flow regulating valve through the cooling pipeline, the first end of the flow regulating valve is connected with the second end of the coolant pipeline in the conducting bar through the cooling pipeline, and the first end of the coolant pipeline in the conducting bar is connected with the second end of the coolant pump through the cooling pipeline; the temperature sensor is arranged on the conductive bar and used for detecting the temperature of the conductive bar; the control device is respectively connected with the temperature sensor, the flow regulating valve and the coolant pump; a control device configured to acquire a temperature of the conductive bar; if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened; and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
In a fourth aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes a memory and a processor, where the memory stores a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method according to the first aspect or any possible implementation manner of the first aspect.
In a fifth aspect, the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the method according to the first aspect or any one of the possible implementation manners of the first aspect.
For technical effects brought by any one implementation manner of the second aspect to the fifth aspect, reference may be made to the technical effects brought by the first aspect or the corresponding implementation manner of the first aspect, and details are not described here again.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of an embodiment of a cooling system for a busbar;
FIG. 2 is a flow chart illustrating a method for controlling a cooling system of a power strip according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating another method for controlling a cooling system of a conductor bar according to an embodiment of the present invention;
FIG. 4 is a flow chart illustrating another exemplary method for controlling a cooling system for a conductor bar according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating another exemplary method for controlling a cooling system for a conductor bar according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a method for controlling an alternative coolant system according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating another method for controlling a cooling system of a conductor bar according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a control device of a cooling system for a power strip according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
To make the objects, technical solutions and advantages of the present invention more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an architecture of a cooling system for a busbar according to an embodiment of the present invention. As shown in fig. 1, the conductor bar cooling system includes a coolant pump 2, a cooler 3, a cooling line 5, a flow regulating valve 4, a temperature sensor 6, and a control device 7.
In the embodiment of the present application, the first end of the coolant pump 2 is connected to the second end of the cooler 3 through the cooling pipeline 5, the first end of the cooler 3 is connected to the second end of the flow control valve 4 through the cooling pipeline 5, the first end of the flow control valve 4 is connected to the second end of the internal coolant pipeline of the conductive bar 1 through the cooling pipeline 5, and the first end of the internal coolant pipeline 5 of the conductive bar 1 is connected to the second end of the coolant pump 2 through the cooling pipeline 5.
In some embodiments, a temperature sensor 6 may be provided to the conductive bar 1 for detecting the temperature of the conductive bar.
For example, the number of the conductive bars 1 may be plural, and the temperature sensor 6 may be disposed on a surface of each conductive bar for measuring a surface temperature of the conductive bar when the conductive bar is operated. Alternatively, a temperature sensor 6 may be disposed in the coolant line inside each of the busbars to measure the coolant temperature inside the busbars when they are in operation.
In other embodiments, a temperature sensor 6 may also be disposed in the cooling line 5 of each outlet for measuring the coolant temperature in the cooling line 5 of each outlet.
In other embodiments, a temperature sensor 6 may be disposed on the cooling line 5 at the outlet of the cooler 3 for measuring the temperature of the coolant in the cooling line 5 at the outlet of the cooler 3. Alternatively, the temperature sensor 6 may be provided on the cooling line 5 at the inlet of the cooler 3 for measuring the temperature of the coolant in the cooling line 5 at the inlet of the cooler 3.
In the embodiment of the present application, the control device 7 is connected to the temperature sensor 6, the flow rate control valve 4, and the coolant pump 2, respectively.
In some embodiments, the control device 7 is configured to control the flow control valve 4 and the coolant pump 2 to circulate coolant through the contact bank cooling system and the contact bank to dissipate heat from the contact bank 1 based on the measurement data of the temperature sensor 6.
In some embodiments, the conductor bar cooling system further comprises a manual regulating valve 7. For example, a manual regulating valve 7 may be provided on the cooling line of each conductive outlet. Alternatively, the manual regulating valve 7 may be provided on the cooling line of each of the conductive row inlets.
In some embodiments, the coolant pump 2 in the conductor bar cooling system may be a fixed frequency pump, or alternatively, may be a variable frequency pump. The present application is not limited.
In some embodiments, a flow control valve 4 in the contact bar cooling system is disposed on the inlet cooling line of each contact bar for controlling the flow of coolant.
It can be understood that the flow control valve 4 is arranged on the inlet cooling pipeline of each conducting bar, so that when the conducting bar fails, secondary refrigerant is prevented from continuously flowing into the conducting bar, and the influence of the secondary refrigerant on the conducting bar is effectively reduced.
In the embodiment of the application, the secondary refrigerant is high-temperature insulating secondary refrigerant. Under the working temperature of the conducting bar, the secondary refrigerant is in an insulating state, so that electric shock accidents and electric leakage accidents are avoided.
In some embodiments, an insulating rubber tube is arranged between the flow control valve 4 and the conductive bar 1, so that the conductive bar 1 is insulated from a conductive bar cooling system, and the occurrence probability of electric shock accidents and electric leakage accidents is reduced.
Based on the conductive bar cooling system shown in fig. 1, referring to fig. 2, a flowchart of a control method of the conductive bar cooling system according to an embodiment of the present invention is shown. The control method of the conductor bar cooling system includes steps S201-S204.
S201, acquiring the temperature of the conductive bar.
As a possible implementation, the control device may directly determine the real-time temperature of each of the plurality of conductive bars as the temperature of the conductive bar.
As a possible implementation, the control device may calculate a maximum value, or a minimum value, of the real-time temperatures of the plurality of conductive bars; the maximum, or minimum, is determined as the temperature of the conductive bar.
S202, if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening of the flow regulating valve is not the maximum opening when the flow regulating valve is opened.
It should be noted that, the temperature of the conductive bar is higher than the first set temperature, which indicates that the load of the conductive bar is large, the temperature rise is high, and heat dissipation is required.
In some embodiments, the control device can control the flow regulator valve to open and the coolant pump to circulate coolant through the cooling system and the conductive row to dissipate heat from the conductive row.
For example, the control means may control the initial opening degree of the flow rate adjustment valve not to be the maximum opening degree when controlling the opening degree of the flow rate adjustment valve to be opened. For example, the starting opening degree of the flow rate adjustment valve may be a minimum opening degree, or the flow rate adjustment valve may be any opening degree between the minimum opening degree and the maximum opening degree.
And S203, after the flow regulating valve is opened, if the duration that the temperature of the conducting bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
It should be noted that the duration is longer than the first set duration, which indicates that the duration of the conductive bar with a larger load is longer, the time of the conductive bar in the high temperature rise state is longer, and the heat dissipation speed of the conductive bar needs to be increased.
In some embodiments, if the temperature of the conductive bar is greater than the first set temperature for a duration greater than the first set duration, the control device can increase the opening of the flow control valve to increase the flow rate of the coolant in the cooling system and the conductive bar, thereby increasing the heat dissipation rate of the conductive bar.
On one hand, compared with natural cooling and air cooling, the method provided by the embodiment of the invention has the advantages that the secondary refrigerant circulates in the conductive bar to radiate heat for the conductive bar, so that the heat radiation speed of the conductive bar is higher, the regulation capacity of the heat radiation of the conductive bar is improved, the temperature rise rate of the conductive bar under a larger load is reduced, and the power transmission and distribution capacity of the conductive bar is improved. On the other hand, when the temperature of the conductive bar is higher than the first set temperature, the control flow regulating valve is controlled to open, the initial opening of the flow regulating valve is not the maximum opening when the flow regulating valve is opened, and when the duration of the temperature of the conductive bar higher than the first set temperature is longer than the first set time, the control flow regulating valve is controlled to increase the opening, so that the flow velocity of the secondary refrigerant in the conductive bar is improved, the heat dissipation capacity of a cooling system on the conductive bar is improved, the temperature rise rate of the conductive bar is reduced, and the power transmission and distribution capacity of the conductive bar is further improved.
Alternatively, as shown in fig. 3, step S203 may be embodied as steps S2031 to S2033.
S2031, calculating the temperature rise rate of the conductive bar.
As a possible implementation manner, the control device may calculate the temperature rise rate of the conductive bar based on the temperature at the start time and the temperature at the end time within the first set time period, and the first set time period.
As another possible implementation, the control device may calculate the rate of temperature rise of the conductive bar based on the temperature at the first time and the temperature at the second time within a first set time period, and a time period between the first time and the second time.
S2032, if the temperature rise rate of the conducting bar is less than or equal to the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a first step speed.
S2033, if the temperature rise rate of the conducting bar is larger than the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a second stepping speed.
Wherein the first stepping speed is less than the second stepping speed.
It can be understood that, if the temperature rise rate of the conductive bar is less than or equal to the set temperature rise rate, it means that the temperature rise of the conductive bar is relatively slow, and the opening degree of the flow regulating valve can be increased at a small step speed. If the temperature rise rate of the conductive bar is greater than the set temperature rise rate, the temperature rise of the conductive bar is relatively high, and the opening of the flow regulating valve can be increased at a large stepping speed.
Optionally, as shown in fig. 4, after step S203, the method for controlling the cooling system of the conductive bar further includes S301.
S301, if the opening degree of the flow regulating valve is increased to the maximum opening degree, and the duration of the maximum opening degree is longer than a second set duration, controlling a cooling fan of the cooler to be opened.
It can be understood that the duration of the maximum opening of the flow regulating valve is longer than the second set duration, which indicates that the heat dissipation requirement of the conductive bar cannot be met when the coolant pump is opened and the flow regulating valve is opened to the maximum opening, and the heat dissipation speed of the conductive bar needs to be further increased.
In some embodiments, the control device can control the cooling fan of the cooler to turn on to increase the heat released by the coolant at the cooler, thereby increasing the heat absorbed by the coolant at the conductive bars to further increase the heat dissipation rate of the conductive bars.
Optionally, as shown in fig. 5, after step S301, the method for controlling the cooling system of the conductive bar further includes steps S401 to S402.
S401, if the temperature of the conductive bar is lower than a second set temperature, controlling a cooling fan of the cooler to be closed.
Wherein the second set temperature is less than the first set temperature.
It should be noted that the temperature of the conductive bar is lower than the second set temperature, which indicates that the temperature of the conductive bar is reduced to a safe level, the load is small, the temperature rise is small, and the cooling system can be adaptively turned off to save energy.
In some embodiments, if the temperature of the conductive bar is lower than the second set temperature, the control device may control the cooling fan of the cooler to be turned off, so as to slow down the heat dissipation speed of the conductive bar, and achieve energy saving of the cooling system.
S402, after the cooling fan of the cooler is controlled to be closed, if the duration of the closed state of the cooling fan is longer than a third set duration, the flow regulating valve is controlled to be closed.
It will be appreciated that after controlling the cooling fan of the chiller to turn off, the cooling system may be turned off if the cooling fan is off for a time period greater than a third set time period, indicating that the bank is not required to dissipate heat from the cooling system.
In some embodiments, the control device may control the flow regulating valve to close the conduction line cooling system.
Optionally, the method for controlling the conductive bar cooling system further includes step S501.
S501, when the temperature of the conducting bar is not more than the first set temperature and not less than the second set temperature, controlling the opening degree of the flow regulating valve to be reduced.
Therefore, the control device can reduce the opening degree of the flow regulating valve and slow down the heat dissipation speed of the cold area system to the conductive bar when the temperature of the conductive bar is stabilized between the second set temperature and the first set temperature.
Optionally, as shown in fig. 6, the method for controlling the cooling system of the conducting bar further includes steps S601-S602.
S601, when the temperature is higher than a first set temperature, controlling a coolant pump to operate at a first frequency;
and S602, controlling the coolant pump to operate at a second frequency when the temperature is not greater than the first set temperature.
Wherein the first frequency is greater than the second frequency.
In some embodiments, the coolant pump may be a variable frequency pump. The control device can control the frequency of the coolant pump to operate the coolant at different frequencies.
Therefore, when the temperature of the conductive bar is higher than the first set temperature, the temperature rise of the conductive bar is higher, and the control device can control the coolant pump to operate at a higher first frequency, so that the heat dissipation speed of the conductive bar is relatively higher. When the temperature of the conductive bar is not higher than the first set temperature, the temperature rise of the conductive bar is lower, and the control device can control the coolant pump to operate at a lower second frequency, so that the heat dissipation speed of the conductive bar is relatively lower. Therefore, the control device can control the frequency of the coolant pump so as to meet the heat dissipation requirements of the conductive bar at different temperatures.
As shown in fig. 7, an embodiment of the present invention further provides a control method of a cooling system of a conductive bar. The control method includes steps S700-S719.
And S700, starting.
S701, acquiring the temperature Tp of the conductive bar.
In some embodiments, the control device can also obtain the working state of the coolant pump and the working state of the flow regulating valve.
S702, judging whether the temperature Tp of the conductive bar is larger than a first set temperature T1. If Tp > T1, go to step S703; otherwise, step S711 is executed.
And S703, judging whether the coolant pump is started or not. If the coolant pump is in the off state, go to step S704; if the coolant pump is in the on state, step S705 is executed.
And S704, controlling the flow regulating valve to be opened and controlling the refrigerant pump to be opened.
S705, it is obtained whether the temperature Tp of the conductive line is greater than the duration of the first set temperature T1.
S706, judging whether the duration is longer than a first set duration. If yes, go to step S707.
And S707, acquiring the real-time opening of the flow regulating valve.
And S708, judging whether the real-time opening degree is the maximum opening degree. If yes, go to step S709; otherwise, step S710 is performed.
And S709, controlling the opening of the flow regulating valve to increase.
And S710, controlling the cooling fan to be started.
As a possible implementation manner, the control device may control the cooling fan of the cooler to be opened when the opening degree of the flow rate adjustment valve is increased to the maximum opening degree and the duration of the maximum opening degree is longer than a second set duration.
S711, whether the temperature Tp of the conductive bar is less than a second set temperature T2 is judged. If Tp < T2, go to step S714; otherwise, step S712 is executed.
And S712, judging whether the coolant pump is started or not. If the coolant pump is in the on state, step S713 is executed.
And S713, controlling the opening degree of the flow regulating valve to be reduced.
S714, judging whether the cooling fan is started or not, if so, executing a step S715; otherwise, step S716 is performed.
And S715, controlling the cooling fan to be closed.
And S716, acquiring the duration of the cooling fan in the closed state.
And S717, judging whether the duration is greater than a third set duration. If yes, go to step S718.
And S718, judging whether the coolant pump is started or not. If the coolant pump is in the on state, step S719 is performed.
And S719, controlling the flow regulating valve and the coolant pump to be closed.
Based on the embodiment shown in fig. 7, the invention can control the cooling system of the conductive bar based on the temperature of the conductive bar and the working states of the coolant pump and the flow regulating valve, realize the control of the temperature of the conductive bar, ensure that the temperature of the conductive bar is within a safe range, reduce the temperature rise rate of the conductive bar under a larger load, and improve the power transmission and distribution capacity of the conductive bar.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by functions and internal logic of the process, and should not limit the implementation process of the embodiments of the present invention in any way.
The following are embodiments of the apparatus of the invention, reference being made to the corresponding method embodiments described above for details which are not described in detail therein.
Fig. 8 is a schematic structural diagram of a control device of a cooling system of a conductive bar according to an embodiment of the present invention, which only shows parts related to the embodiment of the present invention for convenience of description, and the details are as follows:
as shown in fig. 4, the control apparatus 800 of the conductor bar cooling system includes: a communication module 801 and a processing module 802. The conductive bar cooling system comprises a coolant pump, a cooler, a flow regulating valve and a cooling pipeline, wherein the cooling pipeline is connected with the conductive bar, and coolant circulates in the conductive bar cooling system and the conductive bar to dissipate heat of the conductive bar.
A communication module 801 for acquiring the temperature of the conductive bar.
A processing module 802, configured to control a flow regulating valve to open if the temperature of the conducting bar is greater than a first set temperature, where an initial opening degree of the flow regulating valve is not a maximum opening degree when the flow regulating valve is opened; after the flow regulating valve is opened, if the duration that the temperature of the conducting bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
In a possible implementation manner, the processing module 802 is further configured to control the cooling fan of the cooler to be turned on if the opening degree of the flow regulating valve is increased to the maximum opening degree, and the duration of the maximum opening degree is greater than a second set duration.
In a possible implementation manner, the processing module 802 is specifically configured to calculate a temperature rise rate of the conductive bar; if the temperature rise rate of the conducting bar is less than or equal to the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a first stepping speed; and if the temperature rise rate of the conducting bar is greater than the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a second stepping speed, wherein the first stepping speed is less than the second stepping speed.
In a possible implementation manner, the processing module 802 is further configured to control a cooling fan of the cooler to be turned off if the temperature of the conductive bar is less than a second set temperature, where the second set temperature is less than the first set temperature; and after the cooling fan of the cooler is controlled to be closed, if the duration of the closed state of the cooling fan is longer than a third set duration, controlling the flow regulating valve to be closed.
In a possible implementation manner, the processing module 802 is further configured to control the opening degree of the flow regulating valve to decrease when the temperature of the conductive bar is not greater than the first set temperature and not less than the second set temperature.
In one possible implementation, the processing module 802 is further configured to control the coolant pump to operate at a first frequency when the temperature is greater than a first set temperature; when the temperature is not higher than the first set temperature, controlling the coolant pump to operate at a second frequency; the first frequency is greater than the second frequency.
Fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in fig. 9, the electronic apparatus 900 of this embodiment includes: a processor 901, a memory 902 and a computer program 903 stored in said memory 902 and operable on said processor 901. The processor 901 implements the steps in the above embodiments, such as the steps 201 to 203 shown in fig. 2, when executing the computer program 903. Alternatively, the processor 901 implements the functions of each module/unit in each device embodiment described above when executing the computer program 903, such as the communication module 801 and the processing module 802 shown in fig. 8.
Illustratively, the computer program 903 may be partitioned into one or more modules/units that are stored in the memory 902 and executed by the processor 901 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing certain functions, which are used to describe the execution of the computer program 903 in the electronic device 900. For example, the computer program 903 may be divided into a communication module 801 and a processing module 802 shown in fig. 8.
The electronic device 900 may be a desktop computer, a notebook, a palm top computer, a cloud server, or other computing devices. The electronic device 900 may include, but is not limited to, a processor 901, a memory 902. Those skilled in the art will appreciate that fig. 9 is merely an example of an electronic device 900 and does not constitute a limitation of the electronic device 900 and may include more or fewer components than illustrated or some of the components may be combined or different components, e.g., the terminal may also include input-output devices, network access devices, buses, etc.
The Processor 901 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 902 may be an internal storage unit of the electronic device 900, such as a hard disk or a memory of the electronic device 900. The memory 902 may also be an external storage device of the electronic device 900, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the electronic device 900. Further, the memory 902 may also include both internal storage units and external storage devices of the electronic device 900. The memory 902 is used for storing the computer programs and other programs and data required by the terminal. The memory 902 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal and method may be implemented in other ways. For example, the above-described apparatus/terminal embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium and used by a processor to implement the steps of the above embodiments. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. The control method of the conducting bar cooling system is characterized in that the conducting bar cooling system comprises a coolant pump, a cooler, a flow regulating valve and a cooling pipeline, wherein the cooling pipeline is connected with a conducting bar, and coolant circulates in the conducting bar cooling system and the conducting bar to dissipate heat of the conducting bar; the control method comprises the following steps:
acquiring the temperature of the conductive bar;
if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened;
and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
2. The method of controlling a cooling system of a conductor bar according to claim 1,
after the opening of the control flow regulating valve is increased, the method further comprises the following steps:
and if the opening degree of the flow regulating valve is increased to the maximum opening degree and the duration of the maximum opening degree is longer than a second set duration, controlling the cooling fan of the cooler to be opened.
3. The method of controlling a conductor bar cooling system as recited in claim 2, wherein the controlling the increase in the opening of the flow regulating valve comprises:
calculating the temperature rise rate of the conductive bar;
if the temperature rise rate of the conducting bar is less than or equal to the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a first step speed;
and if the temperature rise rate of the conducting bar is greater than the set temperature rise rate, controlling the opening of the flow regulating valve to increase at a second stepping speed, wherein the first stepping speed is less than the second stepping speed.
4. The method of controlling a cooling system of a conductor bar of claim 2, further comprising, after the controlling the cooling fan of the cooler is turned on:
if the temperature of the conductive bar is lower than a second set temperature, controlling a cooling fan of the cooler to be turned off, wherein the second set temperature is lower than the first set temperature;
and after the cooling fan of the cooler is controlled to be closed, if the duration of the closed state of the cooling fan is longer than a third set duration, controlling the flow regulating valve to be closed.
5. The method of controlling a cooling system of a conductor bar of claim 4, further comprising:
and when the temperature of the conducting bar is not more than the first set temperature and not less than the second set temperature, controlling the opening degree of the flow regulating valve to be reduced.
6. The control method of a conductor bar cooling system according to any one of claims 1 to 5, further comprising:
when the temperature is higher than the first set temperature, controlling the coolant pump to operate at a first frequency;
when the temperature is not higher than the first set temperature, controlling the coolant pump to operate at a second frequency; the first frequency is greater than the second frequency.
7. The control device of the conducting bar cooling system is characterized in that the conducting bar cooling system comprises a coolant pump, a cooler, a flow regulating valve and a cooling pipeline, wherein the cooling pipeline is connected with a conducting bar, and coolant circulates in the conducting bar cooling system and the conducting bar to dissipate heat of the conducting bar; the control device includes: a communication module and a processing module;
the communication module is used for acquiring the temperature of the conductive bar;
the processing module is used for controlling the flow regulating valve to be opened if the temperature of the conducting bar is greater than a first set temperature, and the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened; and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
8. The conductive bar cooling system is characterized by comprising a coolant carrying pump, a cooler, a cooling pipeline, a flow regulating valve, a temperature sensor and a control device;
the first end of the coolant pump is connected with the second end of the cooler through a cooling pipeline, the first end of the cooler is connected with the second end of the flow regulating valve through a cooling pipeline, the first end of the flow regulating valve is connected with the second end of the coolant pipeline in the conductive bar through a cooling pipeline, and the first end of the coolant pipeline in the conductive bar is connected with the second end of the coolant pump through a cooling pipeline;
the temperature sensor is arranged on the conductive bar and used for detecting the temperature of the conductive bar;
the control device is respectively connected with the temperature sensor, the flow regulating valve and the coolant carrying pump;
the control device is configured to acquire the temperature of the conductive bar; if the temperature of the conducting bar is higher than the first set temperature, controlling the flow regulating valve to open, wherein the initial opening degree of the flow regulating valve is not the maximum opening degree when the flow regulating valve is opened; and after the flow regulating valve is opened, if the duration that the temperature of the conductive bar is greater than the first set temperature is greater than the first set duration, controlling the opening of the flow regulating valve to increase.
9. An electronic device, comprising a memory storing a computer program and a processor for invoking and executing the computer program stored in the memory to perform the method of any of claims 1-5.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5 above.
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| CN103095098A (en) * | 2011-10-27 | 2013-05-08 | 珠海格力电器股份有限公司 | Frequency converter heat dissipation cooling system and control method and device thereof |
| CN104735954A (en) * | 2013-12-20 | 2015-06-24 | 珠海格力电器股份有限公司 | Control method of liquid-cooled cooler, cooling device and air conditioning system |
| CN112382804A (en) * | 2020-11-12 | 2021-02-19 | 重庆水利电力职业技术学院 | Power battery cooling structure and power battery thermal management system |
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