CN114034896A - Current multiplication device, control method and control device - Google Patents
Current multiplication device, control method and control device Download PDFInfo
- Publication number
- CN114034896A CN114034896A CN202111350524.XA CN202111350524A CN114034896A CN 114034896 A CN114034896 A CN 114034896A CN 202111350524 A CN202111350524 A CN 202111350524A CN 114034896 A CN114034896 A CN 114034896A
- Authority
- CN
- China
- Prior art keywords
- current
- accommodating part
- coil
- circuit
- current value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 39
- 238000004590 computer program Methods 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The present application relates to a current multiplying device, a control method, and a control apparatus. The current multiplication device comprises a first accommodating part with a first accommodating space, a second accommodating part with a second accommodating space, a multi-way coil and a control device. The first end part of any coil is arranged in the first accommodating space, and the second end part of any coil is arranged in the second accommodating space; the first end of the first accommodating part is communicated with the first end of the second accommodating part; when the second end of the first accommodating part is connected with the second end of the second accommodating part, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage; the control equipment sends a closing or opening instruction according to the current value of the annular winding passage and preset time; the driving device drives the second accommodating part to move according to the closing or opening instruction so as to connect or disconnect the second end of the first accommodating part and the second end of the second accommodating part. The current multiplication equipment is small in size and can detect a mutual inductor at a high position in a through-flow experiment.
Description
Technical Field
The present application relates to the field of power grid equipment technologies, and in particular, to a current multiplication device, a control method, and a control apparatus.
Background
With the rapid development of an electric power system, the number of power consumers and the complexity of power utilization lead to more and more complex power transmission branches, a large number of transformers and protection switches of all branches are also incorporated into the system, and when some electric power equipment is displaced and overhauled, although all interfaces are marked correspondingly, necessary circuit verification is required when the equipment is incorporated into the system for operation, and a power frequency current is output through an experimental instrument at a line port of a required through-flow experiment. Therefore, whether the through-flow experiment can be effectively and quickly implemented is a precondition for quick operation in the working process. The existing tester is large in size, not beneficial to carrying and incapable of detecting a voltage transformer or a current transformer at a high position.
Disclosure of Invention
In view of the above, it is desirable to provide a current multiplying device, a control method, and a control apparatus capable of detecting a transformer at a high position in order to solve the above-described problems.
A current multiplying device comprising:
the first accommodating part is provided with a first accommodating space;
the second accommodating part is provided with a second accommodating space;
the first end part of any coil is arranged in the first accommodating space, and the second end part of any coil is arranged in the second accommodating space; the first end of the first accommodating part is communicated with the first end of the second accommodating part; when the second end of the first accommodating part is connected with the second end of the second accommodating part, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage;
the driving device is used for driving the second accommodating part to move according to a closing instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be connected, and is also used for driving the second accommodating part to move according to a disconnecting instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be disconnected;
and the control equipment is used for acquiring the current value of the annular winding passage and sending a closing instruction and an opening instruction according to the current value and preset time.
In one embodiment, the device further comprises a connecting piece; the connecting piece comprises a contact pin and a socket; the contact pins are arranged at the second end of the first accommodating part and are connected with the first end parts of the coils in a one-to-one corresponding mode; the socket is arranged at the second end of the second accommodating part and is connected with the second end part of the coil in a one-to-one correspondence manner; when the pin is connected with the socket, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage.
In one embodiment, the electric vehicle further comprises a circuit cabin; one end of the circuit cabin body is connected with the first accommodating part; an inverter circuit, a filter circuit and a constant current circuit are arranged in the circuit cabin; the input end of the filter circuit is connected with the output end of the inverter circuit, and the output end of the filter circuit is connected with the input end of the constant current circuit; the output end of the constant current circuit is connected with the second end part of any coil.
In one embodiment, the device further comprises an insulating support rod; the supporting rod is connected with the other end of the circuit cabin body.
In one embodiment, the electric vehicle further comprises power supply equipment arranged inside the circuit cabin; and the power supply equipment is connected with the input end of the inverter circuit and is used for generating preset current on the section of the winding passage.
In one embodiment, the system further comprises a display device; the display equipment is connected with the control equipment and used for receiving an operation instruction input by a user; the operation instruction is used for indicating the control equipment to complete corresponding operation.
A current multiplication control method applied to the current multiplication apparatus according to any one of claims 1 to 6, comprising the steps of:
acquiring a current value of the annular winding path;
and sending a closing instruction and an opening instruction according to the current value and the preset time.
In one embodiment, the step of issuing a close command and an open command according to the current value and the preset time includes:
if the current value is equal to zero, a closing instruction is sent out after a preset time interval;
and if the current value is larger than zero, a disconnection instruction is sent out after the interval of preset time.
A current multiplication control device applied to the above current multiplication apparatus, comprising:
the current acquisition device is used for acquiring the current value of the annular winding passage;
and the control module is used for sending a closing instruction and an opening instruction according to the current value and the preset time.
A computer-readable storage medium, a computer program implementing the steps of the above method when executed by a processor.
The current multiplication device comprises a first accommodating part with a first accommodating space, a second accommodating part with a second accommodating space, a multi-way coil, a driving device and a control device, wherein the driving device is used for driving the second accommodating part to move. The first end part of any coil is arranged in the first accommodating space, and the second end part of any coil is arranged in the second accommodating space; the first end of the first accommodating part is communicated with the first end of the second accommodating part; when the second end of the first accommodating part is connected with the second end of the second accommodating part, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage; the driving device drives the second accommodating part to move according to the closing instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be connected, and is further used for driving the second accommodating part to move according to the opening instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be disconnected; the control equipment is used for acquiring the current value of the annular winding passage and sending a closing instruction and an opening instruction according to the current value and preset time. The current multiplication equipment is small in size and can detect a mutual inductor at a high position in a through-flow experiment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic structural view of a current multiplying apparatus in one embodiment;
FIG. 2 is a second schematic structural view of a current multiplying apparatus in one embodiment;
FIG. 3 is a schematic diagram of the structure of a connector in one embodiment;
FIG. 4 is a third schematic structural view of a current multiplying apparatus according to an embodiment;
FIG. 5 is a first schematic structural diagram of the interior of the circuit compartment according to one embodiment;
FIG. 6 is a second schematic structural view of the interior of the circuit compartment according to one embodiment;
FIG. 7 is a third schematic structural view of the interior of the circuit compartment according to one embodiment;
FIG. 8 is a fourth schematic structural view of a current multiplying apparatus according to an embodiment;
FIG. 9 is a schematic flow chart diagram of a current multiplication control method in one embodiment;
FIG. 10 is a flowchart illustrating steps of issuing a close command and an open command according to a current value and a preset time in one embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.
Spatial relational terms, such as "under," "below," "under," "over," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. Further, "connection" in the following embodiments is understood to mean "electrical connection", "communication connection", or the like, if there is a transfer of electrical signals or data between the connected objects.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
As mentioned in the background, with the rapid development of power systems, the number of power consumers and the complexity of power utilization lead to more and more complex power transmission branches, and a large number of transformers and protection switches of each branch are also incorporated into the system. In the case of replacement and maintenance of some power equipment, although each interface is marked correspondingly, when the power equipment is incorporated into a system for operation, necessary circuit verification is required, namely, a power frequency current is output through an experimental instrument at a line port of a required through-flow experiment, and on the basis, whether the transformation ratio, the polarity and the phase of each transformer are normal or not is verified. Meanwhile, as the input current becomes larger, a protection mechanism for protecting the line, such as differential protection, performs corresponding actions. Therefore, whether the through-current experiment can be effectively and quickly implemented is the premise of quick operation in the working process, namely, a proper power frequency large-current power supply device is the basis of the through-current experiment. Some large-current power supplies are also available in the market, the principle is the same as or different from that of the large-current power supplies, but problems exist more or less in the application process, or the frequency is not right, the current is too small, or the equipment is large and not beneficial to portability, and the like, so that much inconvenience is brought in the application process, and the existing technical means cannot detect the voltage/current transformer at a high place and cannot completely meet the requirements of the current environment.
For the above reasons, the present application provides a current multiplying device, a control method, and a control apparatus; the current multiplication equipment is small in size and convenient to carry, and can detect a mutual inductor at a high position.
In one embodiment, as shown in fig. 1, there is provided a current multiplying device comprising:
a first accommodating part 10 provided with a first accommodating space;
a second accommodating portion 20 having a second accommodating space;
multiple coils (not shown in fig. 1), wherein a first end part of any coil is arranged in the first accommodating space, and a second end part of any coil is arranged in the second accommodating space; the first end of the first container portion 10 communicates with the first end of the second container portion 20; when the second end of the first receiving portion 10 and the second end of the second receiving portion 20 are connected, the first end of any coil and the second end of the next coil are connected to form a loop winding path;
a driving device for driving the second container 20 to move, for driving the second container 20 to move according to a closing command so as to connect the second end of the first container 10 with the second end of the second container 20, and for driving the second container to move according to an opening command so as to disconnect the second end of the first container 10 from the second end of the second container 20;
and the control device (not shown in figure 1) is used for acquiring the current value of the annular winding passage and sending out a closing command and an opening command according to the current value and preset time.
Specifically, the number of the multi-path coils may be set according to a device to be detected on site, optionally, the number of the multi-path coils is 25, and when a current of 5A is connected to one end of the coil, a current of 125A may be induced in a cross section of the coil, where the current is used to test a current transformer or a voltage transformer to be detected. The first container 10 is located in a plane with the second container 20, and a first end of the first container 10 is movably connected to a first end of the second container 20, and specifically, the first end of the second container 20 can rotate around the connection in the plane. The driving device may be any one in the art as long as the driving device can drive the second accommodating portion to move, and optionally, the driving device is a steering engine.
The control device includes a current detection device and a controller. The current detection device is used for detecting the current value of the annular winding passage and transmitting the current value to the controller, and the controller acquires the current value of the annular winding passage and sends out a closing instruction and a breaking instruction according to the current value and preset time. The type of the controller is not limited, and the controller may be set according to an actual application, for example, the controller may be a general Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the current value of the annular winding path can be acquired, and a closing instruction and a opening instruction can be sent according to the current value and preset time.
Specifically, before the overhead transformer is put into use, a through-flow experiment needs to be performed, that is, after standard voltage is applied to the transformer, whether the performance of the transformer meets the standard or not is detected. The current multiplication equipment in this application can realize automatic test to the voltage transformer of high latitude, and specific process is: before measurement is not started, the second end of the second coil accommodating part 20 is disconnected with the second end of the first coil accommodating part 10, the current of the annular winding path is zero, the current multiplication device is sleeved on the mutual inductor to be detected, the control device sends a closing instruction to the driving device after a preset time interval, the driving device drives the second coil accommodating part 20 to rotate after receiving the closing instruction, the second end of the second coil accommodating part 20 is connected with the second end of the first coil accommodating part 10, and the coil starts to be electrified and detected; the control device sends a disconnection instruction to the driving device after detecting that the current value of the annular winding passage is larger than zero and after a preset time interval, the driving device drives the second coil accommodating part 20 to rotate in the opposite direction after receiving the disconnection instruction, so that the second end of the second coil accommodating part 20 is disconnected with the second end of the first coil accommodating part 10, the detection is finished, and the current multiplication device is taken down.
It is emphasized that the preset time is a time period from the starting time of the current multiplying device to the power-on and a detection time period from the power-on to the power-off, and the time periods can be set to be the same or different; the time length from the starting time of the current multiplication device to the electrifying is set according to the height of the transformer to be detected, for example, when the height of the transformer to be detected is higher, the preset time can be set to 30 seconds; when the height of the mutual inductor to be detected is low, the preset time can be set to 10 seconds. The detection time from power-on to power-off is set according to the mutual inductor to be detected, for example, when the service life of the mutual inductor to be detected is too long, the detection time can be increased, and when the service time of the mutual inductor to be detected is too short, the detection time can be properly shortened as long as the purpose of performance detection can be achieved.
The current multiplication device comprises a first accommodating part with a first accommodating space, a second accommodating part with a second accommodating space, a multi-way coil, a driving device and a control device, wherein the driving device is used for driving the second accommodating part to move. The first end part of any coil is arranged in the first accommodating space, and the second end part of any coil is arranged in the second accommodating space; the first end of the first accommodating part is communicated with the first end of the second accommodating part; when the second end of the first accommodating part is connected with the second end of the second accommodating part, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage; the driving device drives the second accommodating part to move according to the closing instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be connected, and is further used for driving the second accommodating part to move according to the opening instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be disconnected; the control equipment is used for acquiring the current value of the annular winding passage and sending a closing instruction and an opening instruction according to the current value and preset time. The current multiplication equipment is small in size and can detect a mutual inductor at a high position in a through-flow experiment.
In one embodiment, as shown in fig. 2, further comprises a connector 30; the connector 30 includes a pin and a socket; the contact pins are arranged at the second end of the first accommodating part 10 and are connected with the first end parts of the coils in a one-to-one correspondence manner; the socket is arranged at the second end of the second accommodating part 20 and is connected with the second end of the coil in a one-to-one correspondence manner; when the pin is connected with the socket, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage.
Specifically, as shown in fig. 3, the connector 30 includes a pin and a socket. The contact pin 301 is correspondingly connected with a first end part of the first loop coil 40; the socket 302 is correspondingly connected with the second end part of the first path of coil 40; the contact pin 303 is correspondingly connected with the first end part of the second loop coil; the socket 304 is correspondingly connected with the second end part of the second loop coil; by analogy, the pin 309 is correspondingly connected to the first end of the last coil, and the socket 310 is correspondingly connected to the second end of the last coil. When the pins and the sockets are connected, the connection of the first end of any coil with the second end of the next coil means that the pin 301 is connected with the socket 304, and so on, and finally the socket 302 is connected with the pin 309 to form a circular winding path. In one embodiment, the receptacle 302 is connected to the positive output of an AC power source and the pin 309 is connected to the negative output of the AC power source to form a looped winding path.
In one embodiment, as shown in fig. 4, further comprises a circuit compartment 50; one end of the circuit compartment 50 is connected to the first accommodation portion 10; as shown in fig. 5, an inverter circuit 501, a filter circuit 502 and a constant current circuit 503 are arranged in the circuit cabin 50; the input end of the filter circuit 502 is connected with the output end of the inverter circuit 501, and the output end is connected with the input end of the constant current circuit 503; the output terminal of the constant current circuit 503 is connected to any coil. For example, the positive output terminal of the constant current circuit is connected to the second end portion 302 of the first winding, and the negative output terminal is connected to the first end portion 309 of the last winding, thereby forming a loop winding path.
In one embodiment, as shown in fig. 5, a driving circuit 504 is further disposed in the circuit cabin 50, an input end of the driving circuit 504 is connected to the control device, and an output end of the driving circuit 504 is connected to an input end of the inverter circuit 501.
In one embodiment, the electric vehicle further comprises power supply equipment arranged inside the circuit cabin; and the power supply equipment is connected with the input end of the inverter circuit and is used for generating preset current on the section of the winding passage.
Specifically, as shown in fig. 6, the power supply device includes a lithium battery 505 and a charge and discharge management device 506; the charge and discharge management device 506 is used for controlling the charge and discharge actions of the lithium battery 505 according to the command sent by the control device; the lithium battery 505 is respectively connected with the output end of the charging and discharging management equipment 506 and the input end of the inverter circuit 501; the input end of the charging and discharging management equipment is connected with the control equipment. The preset current is the working current of the mutual inductor to be detected.
In one embodiment, a display device is also included; the display equipment is connected with the control equipment and used for receiving an operation instruction input by a user; the operation instruction is used for indicating the control equipment to complete corresponding operation.
Specifically, the display device is a touchable display screen and is used for receiving an operation instruction input by a user; the operation instruction is used for indicating the control equipment to complete corresponding operation. The operation instruction is any operation implemented on the current multiplication device. For example, the operator selects the button to initiate the test, and the current multiplication device then begins to enter the test mode. The display device is also used for displaying the electric quantity of the battery, the function selection of the current multiplication device, parameter setting, startup and shutdown interfaces and the like, and man-machine interaction is realized.
In a specific embodiment, as shown in FIG. 7, the display device is an OLED screen; the control device includes an ammeter (not shown in fig. 7) and a DSP controller. The debugging process of the current multiplication device is as follows: after the modules are connected, the debugged SPWM program is downloaded to the DSP controller, the waveform of the SPWM wave is displayed by an oscilloscope (not shown in fig. 7), and whether the waveform is normal or not is observed. Under the condition that the waveform is normal, the SPWM wave is transmitted to the driving circuit, whether the amplitude and the frequency of the driving signal and the dead zone of the driving signal are normal or not is checked, and under the normal condition, the charging and discharging management circuit is controlled to start the 12V lithium battery to discharge. When the input voltage is 12V, the maximum power of the power supply is 400W, the maximum current can be increased to 33A, the power frequency alternating voltage with the voltage of 10V at the output end is transposed, when the load changes, the current correspondingly changes, and when the load is connected with a resistor with 1 ohm, the power frequency heavy current of 10A is pre-generated.
When a power switch of the current multiplication equipment is turned on, monitoring the circuit state in a circuit through an OLED display, wherein the input voltage of an input end is 12V, the voltage of an output end is 10V, and the output current is 1A, which indicates that the current multiplication equipment can work normally; meanwhile, the OLED is used for monitoring the electric quantity of the power supply and outputting signals such as the working frequency of current. When the OLED displays low or insufficient electric quantity, the lithium battery needs to be charged; when the input voltage is 12V but the difference between the output voltage and 10V is large or the frequency is different from 50Hz, the power supply is required to be powered off and detected, whether the inductor and the capacitor for filtering are damaged or not is observed, and when the detection is normal, the current multiplication equipment is powered on to operate. The power frequency heavy current that current multiplication equipment normally produced is used for the through-flow experiment, and the power of equipment is closed after the experiment is accomplished.
Optionally, the inverter circuit adopts 4 paths of power MOSFETs with model IRF640 as switching devices to form a full-bridge circuit; the controller uses a DSP signal generator model F28335 from TI corporation, the maximum processor speed can reach 165MHz, and the DSP signal generator is used for generating SPWM signals and controlling OLED display.
In one embodiment, as shown in fig. 8, further includes an insulating support rod 60; the support bar 60 is connected to the other end of the circuit compartment 50.
Particularly, when carrying out through-flow detection to the mutual-inductor of high altitude, need lift current multiplication equipment at the overhead, or support this current multiplication equipment with other instruments, consequently, set up insulating support rod 60, guarantee staff's personal safety when the mutual-inductor of department of high altitude goes on, improve detection efficiency.
In one embodiment, as shown in fig. 9, there is provided a current multiplication control method applied to the above current multiplication apparatus, including the steps of:
s110, acquiring a current value of the annular winding path;
specifically, the current value of the annular winding path may be obtained by any method in the art, which is not limited herein.
And S120, sending a closing instruction and an opening instruction according to the current value and the preset time.
In one embodiment, as shown in fig. 10, the step of issuing a closing command and an opening command according to the current value and the preset time includes:
s130: if the current value is equal to zero, a closing instruction is sent out after a preset time interval;
s140: and if the current value is larger than zero, a disconnection instruction is sent out after the interval of preset time.
Specifically, before the overhead transformer is put into use, a through-flow experiment needs to be performed, that is, after standard voltage is applied to the transformer, whether the performance of the transformer meets the standard or not is detected. Before measurement is started, a second end of the second coil accommodating part is disconnected with a second end of the first coil accommodating part, the current of the annular winding path is zero, the current multiplication device is sleeved on the mutual inductor to be detected, the control device sends a closing instruction to the driving device after a preset time interval, and the driving device drives the second coil accommodating part to rotate after receiving the closing instruction, so that the second end of the second coil accommodating part is connected with the second end of the first coil accommodating part, and the coil starts to be electrified for detection; and after detecting that the current value of the annular winding passage is greater than zero, the control equipment sends a disconnection instruction to the driving equipment at intervals of preset time, the driving equipment drives the second coil accommodating part to rotate in the opposite direction after receiving the disconnection instruction, so that the second end of the second coil accommodating part is disconnected with the second end of the first coil accommodating part, the detection is finished, and the current multiplication equipment is taken down.
It is emphasized that the preset time is a time period from the starting time of the current multiplying device to the power-on and a detection time period from the power-on to the power-off, and the time periods can be set to be the same or different; the time length from the starting time of the current multiplication device to the electrifying is set according to the height of the transformer to be detected, for example, when the height of the transformer to be detected is higher, the preset time can be set to 30 seconds; when the height of the mutual inductor to be detected is low, the preset time can be set to 10 seconds. The detection time from power-on to power-off is set according to the mutual inductor to be detected, for example, when the service life of the mutual inductor to be detected is too long, the detection time can be increased, and when the service time of the mutual inductor to be detected is too short, the detection time can be properly shortened as long as the purpose of performance detection can be achieved.
According to the current multiplication control method, the current value of the annular winding path is obtained; according to the current value and the preset time, a closing instruction and an opening instruction are sent, and the mutual inductor at the high position can be detected in the through-flow experiment.
It should be understood that, although the various steps in the flowcharts of fig. 9-10 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 9-10 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps or stages.
In one embodiment, there is provided a current multiplication control apparatus applied to the above current multiplication device, including:
the current acquisition device is used for acquiring the current value of the annular winding passage;
and the control module is used for sending a closing instruction and an opening instruction according to the current value and the preset time.
In one embodiment, the control module includes:
the closing module is used for sending a closing instruction after a preset time interval if the current value is equal to zero;
and the disconnection module is used for sending a disconnection instruction after a preset time interval if the current value is greater than zero.
For specific limitations of the current multiplication control device, reference may be made to the above limitations of the current multiplication control method, which are not described herein again. All or part of the modules in the current multiplying control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a current value of the annular winding path;
and sending a closing instruction and an opening instruction according to the current value and the preset time.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if the current value is equal to zero, a closing instruction is sent out after a preset time interval;
and if the current value is larger than zero, a disconnection instruction is sent out after the interval of preset time.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A current multiplying apparatus, comprising:
the first accommodating part is provided with a first accommodating space;
the second accommodating part is provided with a second accommodating space;
the first end part of any one coil is arranged in the first accommodating space, and the second end part of the coil is arranged in the second accommodating space; the first end of the first accommodating part is communicated with the first end of the second accommodating part; when the second end of the first accommodating part is connected with the second end of the second accommodating part, the first end of any coil is connected with the second end of the next coil to form a ring-shaped winding passage;
the driving device is used for driving the second accommodating part to move according to a closing instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be connected, and is also used for driving the second accommodating part to move according to an opening instruction so as to enable the second end of the first accommodating part and the second end of the second accommodating part to be disconnected;
and the control equipment is used for acquiring the current value of the annular winding passage and sending the closing instruction and the opening instruction according to the current value and preset time.
2. The current multiplication device of claim 1, further comprising a connector; the connecting piece comprises a contact pin and a socket; the contact pins are arranged at the second end of the first accommodating part and are connected with the first end parts of the coils in a one-to-one corresponding mode; the socket is arranged at the second end of the second accommodating part and is connected with the second end part of the coil in a one-to-one correspondence manner; when the contact pin is connected with the socket, the first end of any coil is connected with the second end of the next coil to form the annular winding passage.
3. The current multiplying apparatus of claim 1, further comprising a circuit compartment; one end of the circuit cabin body is connected with the first accommodating part; an inverter circuit, a filter circuit and a constant current circuit are arranged in the circuit cabin; the input end of the filter circuit is connected with the output end of the inverter circuit, and the output end of the filter circuit is connected with the input end of the constant current circuit; and the output end of the constant current circuit is connected with the second end part of any coil.
4. The current multiplying apparatus of claim 3, further comprising an insulating support rod; the supporting rod is connected with the other end of the circuit cabin body.
5. The current multiplying apparatus of claim 3, further comprising a power supply apparatus disposed inside the circuit compartment; and the power supply equipment is connected with the input end of the inverter circuit and is used for generating preset current on the section of the winding passage.
6. The current multiplying device of claim 5, further comprising a display device; the display equipment is connected with the control equipment and is used for receiving an operation instruction input by a user; the operation instruction is used for indicating the control equipment to complete corresponding operation.
7. A current multiplication control method applied to the current multiplication apparatus according to any one of claims 1 to 6, comprising the steps of:
acquiring a current value of the annular winding path;
and sending a closing instruction and an opening instruction according to the current value and the preset time.
8. The current multiplication control method according to claim 7, wherein the step of issuing a closing command and an opening command according to the current value and the preset time includes:
if the current value is equal to zero, a closing instruction is sent out after a preset time interval;
and if the current value is larger than zero, sending a disconnection instruction after the preset time interval.
9. A current multiplication control apparatus applied to a current multiplication device according to any one of claims 1 to 6, comprising:
the current acquisition device is used for acquiring the current value of the annular winding passage;
and the control module is used for sending a closing instruction and an opening instruction according to the current value and the preset time.
10. A computer-readable storage medium, characterized in that the computer program realizes the steps of the method of any one of claims 7 to 8 when executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111350524.XA CN114034896B (en) | 2021-11-15 | 2021-11-15 | Current multiplying device, control method and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111350524.XA CN114034896B (en) | 2021-11-15 | 2021-11-15 | Current multiplying device, control method and control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114034896A true CN114034896A (en) | 2022-02-11 |
| CN114034896B CN114034896B (en) | 2024-05-24 |
Family
ID=80137701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111350524.XA Active CN114034896B (en) | 2021-11-15 | 2021-11-15 | Current multiplying device, control method and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114034896B (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551800A (en) * | 1968-06-06 | 1970-12-29 | Ibm | Test apparatus for analyzing the performance characteristics of internal combustion engine ignition systems |
| US3760150A (en) * | 1972-06-09 | 1973-09-18 | L Fenn | Electric cigar lighter with thermostatic bimetallic current control |
| US3943413A (en) * | 1974-07-03 | 1976-03-09 | Westinghouse Electric Corporation | Tamperproof external test contact arrangement for watthour meters |
| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN202994957U (en) * | 2012-12-17 | 2013-06-12 | 珠海优特电力科技股份有限公司 | Line fault indication device |
| CN103852619A (en) * | 2012-12-05 | 2014-06-11 | 北京柏艾斯科技有限公司 | Open type current sensor based on closed loop fluxgate technology |
| JP2014197943A (en) * | 2013-03-29 | 2014-10-16 | 新電元工業株式会社 | Switching power supply device and method of controlling the same |
| KR101468887B1 (en) * | 2013-09-13 | 2014-12-05 | 오찬배 | Probe for measuring electric power load |
| US20150198667A1 (en) * | 2014-01-16 | 2015-07-16 | Vanguard Instruments Company, Inc. | Dual ground breaker testing system |
| CN205333776U (en) * | 2016-02-16 | 2016-06-22 | 国网安徽省电力公司检修公司 | Combined current and potential transformer's secondary winding point polarity detection device |
| CN207036947U (en) * | 2017-07-10 | 2018-02-23 | 上海出入境检验检疫局机电产品检测技术中心 | A kind of test current based on PLC controls instantaneously switches and supervising device |
| CN109633254A (en) * | 2019-01-15 | 2019-04-16 | 广东电网有限责任公司 | A kind of clamp on amperemeter for a flow-through test |
| CN109690902A (en) * | 2016-08-05 | 2019-04-26 | 阿莫善斯有限公司 | Current transformer module and power supply including the current transformer module |
| CN110274630A (en) * | 2019-07-02 | 2019-09-24 | 凯铭诺(深圳)科技有限公司 | A kind of low-voltage distributing line branch monitoring device and its monitoring method |
| CN209593297U (en) * | 2018-03-29 | 2019-11-05 | 半导体元件工业有限责任公司 | Current multiplication DC-DC converter |
| CN111044966A (en) * | 2019-12-23 | 2020-04-21 | 中国电力科学研究院有限公司 | Electronic current transformer live detection system and method |
| CN211088066U (en) * | 2020-01-18 | 2020-07-24 | 山东元星电子有限公司 | Split type puncture current transformer |
| CN111616656A (en) * | 2020-05-29 | 2020-09-04 | 上海明略人工智能(集团)有限公司 | Method and device for generating fault prompt information and storage medium |
| CN111796182A (en) * | 2020-08-03 | 2020-10-20 | 浙江省机电产品质量检测所有限公司 | AC contactor electric service life test method and device based on large-capacity electronic accompanying test article |
| CN212412773U (en) * | 2020-07-10 | 2021-01-26 | 南方电网数字电网研究院有限公司 | Electric energy storage control device, electric energy storage device and distribution system |
| CN213933997U (en) * | 2020-11-03 | 2021-08-10 | 南方电网数字电网研究院有限公司 | Current measuring device |
-
2021
- 2021-11-15 CN CN202111350524.XA patent/CN114034896B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551800A (en) * | 1968-06-06 | 1970-12-29 | Ibm | Test apparatus for analyzing the performance characteristics of internal combustion engine ignition systems |
| US3760150A (en) * | 1972-06-09 | 1973-09-18 | L Fenn | Electric cigar lighter with thermostatic bimetallic current control |
| US3943413A (en) * | 1974-07-03 | 1976-03-09 | Westinghouse Electric Corporation | Tamperproof external test contact arrangement for watthour meters |
| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN103852619A (en) * | 2012-12-05 | 2014-06-11 | 北京柏艾斯科技有限公司 | Open type current sensor based on closed loop fluxgate technology |
| CN202994957U (en) * | 2012-12-17 | 2013-06-12 | 珠海优特电力科技股份有限公司 | Line fault indication device |
| JP2014197943A (en) * | 2013-03-29 | 2014-10-16 | 新電元工業株式会社 | Switching power supply device and method of controlling the same |
| KR101468887B1 (en) * | 2013-09-13 | 2014-12-05 | 오찬배 | Probe for measuring electric power load |
| US20150198667A1 (en) * | 2014-01-16 | 2015-07-16 | Vanguard Instruments Company, Inc. | Dual ground breaker testing system |
| CN205333776U (en) * | 2016-02-16 | 2016-06-22 | 国网安徽省电力公司检修公司 | Combined current and potential transformer's secondary winding point polarity detection device |
| CN109690902A (en) * | 2016-08-05 | 2019-04-26 | 阿莫善斯有限公司 | Current transformer module and power supply including the current transformer module |
| CN207036947U (en) * | 2017-07-10 | 2018-02-23 | 上海出入境检验检疫局机电产品检测技术中心 | A kind of test current based on PLC controls instantaneously switches and supervising device |
| CN209593297U (en) * | 2018-03-29 | 2019-11-05 | 半导体元件工业有限责任公司 | Current multiplication DC-DC converter |
| CN109633254A (en) * | 2019-01-15 | 2019-04-16 | 广东电网有限责任公司 | A kind of clamp on amperemeter for a flow-through test |
| CN110274630A (en) * | 2019-07-02 | 2019-09-24 | 凯铭诺(深圳)科技有限公司 | A kind of low-voltage distributing line branch monitoring device and its monitoring method |
| CN111044966A (en) * | 2019-12-23 | 2020-04-21 | 中国电力科学研究院有限公司 | Electronic current transformer live detection system and method |
| CN211088066U (en) * | 2020-01-18 | 2020-07-24 | 山东元星电子有限公司 | Split type puncture current transformer |
| CN111616656A (en) * | 2020-05-29 | 2020-09-04 | 上海明略人工智能(集团)有限公司 | Method and device for generating fault prompt information and storage medium |
| CN212412773U (en) * | 2020-07-10 | 2021-01-26 | 南方电网数字电网研究院有限公司 | Electric energy storage control device, electric energy storage device and distribution system |
| CN111796182A (en) * | 2020-08-03 | 2020-10-20 | 浙江省机电产品质量检测所有限公司 | AC contactor electric service life test method and device based on large-capacity electronic accompanying test article |
| CN213933997U (en) * | 2020-11-03 | 2021-08-10 | 南方电网数字电网研究院有限公司 | Current measuring device |
Non-Patent Citations (3)
| Title |
|---|
| 李春旭;张鹏;王新;王珊;: "基于DSP的IGBT逆变TIG焊电源研究", 电力电子技术, no. 04, 20 April 2007 (2007-04-20) * |
| 李海涛;王豫;陈维荣;严仲明;吴锐;: "基于meat-grinder脉冲电源的感应线圈炮发射性能仿真分析", 高电压技术, no. 04, 30 April 2013 (2013-04-30) * |
| 李环宇;卢奔;周学;翟国富;: "直流电器 讲座 第三讲 直流接触器节电驱动电路设计", 电器与能效管理技术, no. 17, 15 September 2017 (2017-09-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114034896B (en) | 2024-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106019002A (en) | Verification testing platform for battery management system and testing method thereof | |
| CN104793058B (en) | High-voltage insulating resistance monitoring alarm instrument and its method of work | |
| CN105974243B (en) | Detection system and method applied to on-site power supply and charging equipment | |
| CN207263852U (en) | A kind of test system of electric automobile direct-current charging post | |
| US11745610B2 (en) | Power conversion device and power transfer system | |
| CN109073712A (en) | Battery status detection system and method | |
| CN106066435A (en) | Photovoltaic DC-to-AC converter aging testing system | |
| CN106965701A (en) | Emergency starting system and electric automobile emergency starting device | |
| CN110224469A (en) | The control method and device and charging system of charging system | |
| CN105515106A (en) | Intelligent charging device used for portable devices | |
| CN107450019A (en) | Handcart type breaker low-voltage motion test instrument | |
| CN208636408U (en) | Test circuit and test macro | |
| CN210941367U (en) | Charging prompting device, charging gun and charging equipment | |
| CN211061617U (en) | High-voltage safety detection device for electric automobile | |
| CN114034896A (en) | Current multiplication device, control method and control device | |
| CN107528449A (en) | Portable multi-function is adjustable alternating current-direct current power box for high tension testing | |
| CN206797152U (en) | emergency starting system and electric automobile emergency starting device | |
| CN217332735U (en) | Relay detection circuit and device | |
| CN210954270U (en) | Fuel cell test bench | |
| CN205388634U (en) | Testing arrangement of automobile staring line | |
| CN216028720U (en) | Portable spot welder control panel | |
| CN211182996U (en) | High-voltage distribution control box for IPU | |
| CN209786841U (en) | Charging and discharging circuit and practical training platform | |
| CN220040732U (en) | Portable electroscope verifying attachment of two voltage grades | |
| CN216449692U (en) | Contactor testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |