A power electronic three-phase unbalanced intelligent regulating device

Abstract

The present invention relates to the field of electronic equipment, specifically a power electronic type three-phase unbalanced intelligent regulating device, including a chassis, an SPC module, a controller, a first current transformer and a second current transformer, wherein the SPC module is fixedly mounted on the inner bottom wall of the chassis, a replacement component is symmetrically fixedly mounted on the top of the bearing plate, and a linkage component is symmetrically fixedly mounted on the side wall of the bearing plate. In the present invention, by changing the magnitude and direction of the current passing through the first electromagnet, the magnetic poles of the adjacent ends of the first electromagnet and the first permanent magnet are changed to achieve mutual repulsion or mutual attraction, thereby causing the first rack plate to change its position accordingly, and cooperate with the cylindrical gear to drive the second rack plate to move in the corresponding direction, thereby driving the second ring to move synchronously on the first coil, changing the number of turns of the first coil, and realizing the detection of currents in different circuits using one current transformer, thereby improving the practicality of the device.

Description

Technical Field

[0001] The invention relates to the field of electronic technology, in particular to a power electronic type three-phase unbalanced intelligent regulating device. Background Art

[0002] The three-phase unbalanced regulation device is a power electronic device, which is mainly used for dynamically managing the three-phase imbalance of the distribution network, compensating for reactive power and harmonic control. This device is realized through a three-phase unbalanced intelligent regulator. It can separate the positive and negative zero-sequence and reactive and harmonic currents of the unbalanced current according to the unbalanced current caused by the distribution network users in different time periods or different loads by using the control algorithm, and trigger the power device IGBT to make the inverter emit an opposite offset current, thereby achieving the purpose of eliminating imbalance and compensating for reactive power and harmonic control.

[0003] For example, a low-voltage three-phase unbalanced regulating device proposed in the announcement number CN219739968U includes a cabinet, an expansion component and a sealing component, and the expansion component includes side panels movably installed on both sides of the cabinet. The low-voltage three-phase unbalanced regulating device described in this device, the side panels on both sides of the front end of the cabinet of the low-voltage three-phase unbalanced regulating device can be expanded on both sides when the internal components are installed and repaired, so as to improve the convenience of the installation and maintenance of the internal components, and the locking blocks installed in the installation cavity at the bottom of the cabinet can also be locked and fixed after the side panels on both sides of the cabinet are closed, so as to maintain the tightness of the side panels after closing. At the same time, the expansion component with a simple structure makes the expansion and closing of the side panels on both sides easy to operate. The sealing bars, sealing pads, drainage channels and drainage holes respectively arranged between the two sides and the side panels of the cabinet and the bottom can realize the sealing between the cabinet and the side panels on both sides, and can also drain and evacuate the water flow infiltrated from the bottom of the side panels.

[0004] When detecting the current in different circuits, the current transformer needs to use current transformers with different coils for detection. When detecting the current in different circuits, the number of coils of the current transformer is large, the detection result is inaccurate, or the number of coils is small, and the larger circuit cannot be detected. It is impossible to use one current transformer to detect the current in different circuits, which has limitations. In addition, due to the long-term use of the current transformer, the coil may be damaged, poorly contacted or aged, causing the coil to be open or short-circuited, which will lead to the problem that the output current value cannot be detected normally or the output value is inaccurate. After the current transformer has a problem, most of them are manually replaced and repaired, which is time-consuming and affects the normal operation of the device. In addition, during the placement of the spare current transformer, dust will be attached to the terminal of the spare current transformer due to its non-use. If the spare current transformer with dust on the terminal is directly connected to the load circuit, the dust will cause poor circuit contact, and in severe cases, it will cause a short circuit in the circuit, and an arc will be generated in the circuit where the spare current transformer is connected, and the arc will affect other electronic equipment, which has limitations.

[0005] In view of the above problems, a power electronic three-phase unbalanced intelligent regulation device is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a power electronic three-phase unbalanced intelligent regulating device, which is used to work, thereby solving the problem that it is impossible to use one current transformer to detect the current in different circuits in the above background; in addition, after long-term use, the coil will be damaged, resulting in the inability to detect the output current value normally or the output value is inaccurate; and dust adheres to the terminal of the standby current transformer. If the standby current transformer with dust on the terminal is directly connected to the load circuit, the dust will cause poor circuit contact.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a power electronic three-phase unbalanced intelligent regulating device, comprising a chassis, an SPC module, a controller, a first current transformer and a second current transformer, the SPC module being fixedly installed on the inner bottom wall of the chassis, the controller being fixedly installed on the inner side wall of the chassis, a bearing plate being fixedly connected inside the SPC module, a slide groove being provided on the top of the bearing plate, a placement plate being slidably connected on the inner wall of the slide groove, the first current transformer and the second current transformer being fixedly installed vertically side by side on the top of the placement plate, an annular iron core being fixedly installed inside the first current transformer and the second current transformer, the iron core being an annular structure, a first coil and a second coil being symmetrically fixedly installed on the side walls of the iron core, an adjustment component being slidably installed on the side walls of the first coil and the second coil, a replacement component being symmetrically fixedly installed on the top of the bearing plate, and a linkage component being symmetrically fixedly installed on the side walls of the bearing plate.

[0008] Further, the adjustment component includes two first rings, and the two first rings are symmetrically fixedly connected to the inside of the first current transformer. The side wall of the first current transformer is rotatably connected to a cylindrical gear. The side wall of the first current transformer is symmetrically slidably connected to a first rack plate and a second rack plate along a diagonal line. The first rack plate and the second rack plate are both meshed with the cylindrical gear. The side wall of the first rack plate is fixedly connected to a first permanent magnet, and the side wall of the first current transformer is fixedly connected to a first electromagnet. Each of the first electromagnets is electrically connected to the controller. The first electromagnet and the first permanent magnet are located at the same horizontal position. The side wall of the first current transformer is symmetrically opened with rectangular holes. The side wall of the first current transformer is symmetrically fixedly connected to a support tube. One end of the first coil passes through the side wall of the first current transformer and is located inside an adjacent support tube.

[0009] Furthermore, each of the first rings is sleeved on the outer wall of the iron core, a second ring is sleeved on the outside of the first coil and the second coil, each of the side walls of the second rack plate is fixedly connected to a connecting plate, one end of the connecting plate passes through the rectangular hole and is fixedly connected to the side wall of the second ring, a graphene magnetic isolation sleeve is fixedly connected between the first ring and the second ring, a conductive paddle is fixedly connected to the inner wall of each of the second rings, one of the conductive paddles is in abutment contact with the outer wall of the first coil, and the other conductive paddle is in abutment contact with the outer wall of the second coil, each of the side walls of the conductive paddles is fixedly connected to a wire, one end of one of the wires passes through the adjacent second ring and then passes through the outer wall of the first current transformer, and is located inside the adjacent supporting tube, and one end of the first coil and the wire are fixedly connected to a connecting wire.

[0010] Furthermore, the replacement component includes two guide seats, which are symmetrically fixedly connected to the top of the supporting plate, each of which is an inverted U-shaped structure, a card slot is provided on the inner wall of the slide slot, an electric push rod is fixedly connected to the inner wall of the SPC module, a push plate is fixedly connected to the movable end of the electric push rod, the push plate is slidably connected to the inside of the card slot, and an installation groove is provided on the inner wall of the supporting plate.

[0011] Furthermore, a groove body is provided on the inner side wall of the guide seat, and a first spring is symmetrically fixedly connected to the inner wall of the groove body, and two of the first springs are commonly fixedly connected to a limit plate, and the limit plate is an inverted U-shaped structure. The push plate is fixedly connected to the side wall of the placement plate, and a sliding hole is provided on the inner bottom wall of the slide groove, and a connecting block is symmetrically fixedly connected to the bottom wall of the placement plate.

[0012] Furthermore, each of the connecting blocks passes through the adjacent sliding holes and extends into the interior of the mounting groove, the two connecting blocks are commonly fixedly connected to the pressure plate, one end of the limit plate is a wedge-shaped structure, and the other end is fixedly connected to a second permanent magnet, the inner bottom wall of the guide seat is fixedly connected to a second electromagnet, the second electromagnet is electrically connected to the controller, the inner top wall of the guide seat is fixedly connected to a top plate, the inner bottom wall of the guide seat is symmetrically fixedly connected to a second spring, and the two second springs are commonly fixedly connected to a conductive plate.

[0013] Furthermore, the linkage assembly includes an airbag, one side of which is fixedly connected to the inner wall of the mounting groove, the top of the bearing plate is symmetrically fixedly connected to an adsorption plate, the side wall of the guide seat is rotatably connected to a reciprocating screw, the side wall of the guide seat is fixedly connected to a cylinder, and the top of the bearing plate is symmetrically fixedly connected to a support plate.

[0014] Furthermore, one end of the reciprocating screw is rotatably connected to the adjacent side wall of the support plate, the reciprocating screw is threadedly connected to a sleeve, the bottom end of the sleeve is fixedly connected to a friction block, the friction block is in contact with the adsorption plate, the other end of the reciprocating screw is rotatably connected to the cylinder, and a plurality of groups of first metal blades are fixedly connected to the side wall at equal angles, an opening is provided at the top of the cylinder, and a plurality of groups of second metal blades are fixedly connected to the inner wall at equal angles, and the first metal blades and the second metal blades are staggered.

[0015] Furthermore, the side walls of the airbag are symmetrically fixedly connected with air guide tubes, and one end of each of the air guide tubes penetrates through the top wall of the installation groove and then extends to the guide seat.

[0016] Furthermore, a shunt pipe is fixedly connected to the port of the air guide pipe, and a pressure relief valve is installed inside each of the air guide pipes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By setting an adjustment component and changing the current size and current direction passing through the first electromagnet, the magnetic poles of the adjacent ends of the first electromagnet and the first permanent magnet are changed to achieve mutual repulsion or mutual attraction, so that the first rack plate changes its position accordingly, and cooperates with the cylindrical gear to drive the second rack plate to move toward each other accordingly. The second rack plate moves, and the second ring is driven to move synchronously on the first coil, changing the number of turns of the first coil, and using a conductive pick to guide the current to the wire to form a complete loop, and realize the use of a current transformer to detect the current in different circuits, thereby improving the practicality of the device; by setting a replacement component, when the first current transformer is damaged or short-circuited and cannot be used, the second electromagnet is energized, The two ends of the second electromagnet generate magnetic poles. Under the action of the same magnetic poles of the third electromagnet and the adjacent ends of the third permanent magnet, the third permanent magnet drives the conductive plate away from the terminal of the first current transformer, so that the first current transformer is disconnected from the load circuit in time. Then, the placement plate is pushed to move by the electric push rod, so that the first current transformer leaves the conduction seat, and the second current transformer is moved into the conduction seat. Subsequently, the second electromagnet is energized, and the second electromagnet and the adjacent ends of the second permanent magnet are used to repel each other with the same magnetism, so that the limit plate moves into the conduction seat, releases the limit on the conductive plate, and resets under the elastic action of the second spring, so that the conductive plate contacts the terminal of the second current transformer, thereby continuing the current detection, which is more convenient and avoids affecting the normal operation of the device.

[0019] By setting a linkage component and utilizing a compressed air bag, the air flow inside the compressed air bag is blown out through an air duct to blow away dust attached to the terminal of the moving second current transformer, so that the terminal is kept clean and poor circuit contact caused by dust is avoided. The air flow blown out of the air duct causes the vortex blades to rotate, driving the reciprocating screw to rotate, thereby causing the sliding sleeve to drive the friction block to reciprocate along the adsorption plate, and the continuous friction generates static electricity to adsorb the dust to prevent it from floating everywhere. The arc at the connection is blown toward the cylinder through a shunt pipe, and the long arc is cut off by a plurality of rotating first metal blades, and is brought into the cylinder by rotation and stirring, and the cut long arc is cut again by a plurality of sets of second metal blades in the cylinder to make it shorter, thereby preventing the long arc from affecting other electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the chassis in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the chassis, controller and SPC module in the present invention;

[0023] Figure 4 It is a structural schematic diagram of a load-bearing plate, a first current transformer, a second current transformer, a replacement component and a linkage component in the present invention;

[0024] Figure 5 It is a cross-sectional view of the current transformer and a schematic diagram of the structure of the adjustment component in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the current transformer in the present invention in the rearward direction;

[0026] Figure 7 It is a schematic diagram of the structure of adjusting the rearward direction of the assembly in the present invention;

[0027] Figure 8 It is a structural schematic diagram of adjusting the main viewing direction of the component in the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the replacement component in the present invention;

[0029] Fig.10 It is a structural schematic diagram of the rear view direction of the replacement component in the present invention;

[0030] Fig.11 is a cross-sectional view of the load-bearing plate in the present invention;

[0031] Fig.12 is a cross-sectional view of the guide seat in the present invention;

[0032] Fig.13 It is a structural schematic diagram of the linkage component in the present invention;

[0033] Fig.14 It is a schematic diagram of the structure of the linkage assembly in the present invention in the rearward direction;

[0034] Fig.15 It is a schematic diagram of the main structure of the linkage component in the present invention.

[0035] In the figure: 1, chassis; 2, SPC module; 3, controller; 4, first current transformer; 41, second current transformer; 43, first coil; 44, second coil; 45, iron core; 5, bearing plate; 51, mounting slot; 52, slide hole; 53, card slot; 54, slide slot; 55, placement plate; 6, adjustment component; 61, first ring; 62, second ring; 63, graphene magnetic isolation sleeve; 64, conductive pick; 65, wire; 66, first rack plate; 67, cylindrical gear; 68, second rack plate; 69, connecting plate; 610, first permanent magnet; 611, first electromagnet; 612, rectangular hole; 613, support cylinder; 614, connecting wire; 7, Replacement components; 71, guide seat; 72, top plate; 73, slot body; 74, first spring; 75, limit plate; 76, second permanent magnet; 77, second electromagnet; 78, second spring; 79, conductive plate; 710, third electromagnet; 711, third permanent magnet; 712, electric push rod; 713, push plate; 714, pressure plate; 715, connecting block; 8, linkage component; 81, airbag; 82, air guide tube; 83, pressure relief valve; 84, shunt pipe; 85, support plate; 86, reciprocating screw; 87, vortex blade; 88, sleeve; 89, friction block; 810, adsorption plate; 811, cylinder; 812, first metal blade; 813, second metal blade. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In order to solve the problem that when a current transformer detects the current in different circuits, it is necessary to use current transformers with different coils for detection. When detecting the current in different circuits, the number of coils of the current transformer is large, the detection result is inaccurate, or the number of coils is small, and a larger circuit cannot be detected. It is impossible to use one current transformer to detect the current in different circuits, which has limited technical problems, such as Figure 1 - Fig.10 As shown, the following preferred technical solutions are provided:

[0038] A power electronic three-phase unbalanced intelligent regulating device comprises a chassis 1, an SPC module 2, a controller 3, a first current transformer 4 and a second current transformer 41. The SPC module 2 is fixedly installed on the inner bottom wall of the chassis 1, and the controller 3 is fixedly installed on the inner side wall of the chassis 1. A bearing plate 5 is fixedly connected inside the SPC module 2. The SPC module 2 is the core part of the three-phase unbalanced intelligent regulating device. The SPC module 2 detects the current of the system in real time through an external current transformer, and uses a control algorithm to analyze the positive and negative zero sequence and reactive power of the unbalanced current. By triggering the power device IGBT, the inverter emits an opposite offset current to eliminate the imbalance and compensate for the reactive power, and sends the system current information to the internal controller 3 for processing and analysis. This real-time monitoring and intelligent regulation function enables the SPC module 2 to effectively solve the three-phase imbalance problem and improve the stability and efficiency of the power system. A slide groove 54 is provided at the top of the bearing plate 5, and a placement plate 55 is slidably connected to the inner wall of the slide groove 54. The current transformer 4 and the second current transformer 41 are fixedly installed vertically side by side on the top of the placement plate 55. During normal operation, the first current transformer 4 performs system current detection, but due to long-term use, the coil may be damaged, have poor contact or age, causing the coil to be open or short-circuited, which will lead to the problem that the output current value cannot be detected normally or the output value is inaccurate. Therefore, by setting a replacement component 7, the second current transformer 41 used as a spare is replaced in time to avoid affecting normal operation. The first current transformer 4 and the second current transformer 41 are both fixedly installed with an annular iron core 45. The iron core 45 is an annular structure. The side walls of the iron core 45 are symmetrically fixedly installed with the first coil 43 and the second coil 44. According to the principle of the current transformer, the first coil 43 is electrically connected to the load circuit through a conductive wire, and the second coil 44 is electrically connected to the ammeter through a conductive wire, so as to detect the current in the load circuit. The side walls of the first coil 43 and the second coil 44 are both slidably installed with an adjustment component 6.

[0039] By setting up the adjustment component 6, using an external sliding rheostat and a current diverter, the current passing through the first electromagnet 611 is adjusted, so that the electromagnetic force of the first electromagnet 611 changes accordingly, and in conjunction with the use of the current diverter, the magnetic poles of the adjacent ends of the first electromagnet 611 and the first permanent magnet 610 are changed to achieve repulsion or attraction, so that the first rack plate 66 changes its position accordingly, and cooperates with the cylindrical gear 67 to drive the second rack plate 68 to move toward each other accordingly. The second rack plate 68 moves, and the second ring 62 is driven to move synchronously on the first coil 43, changing the number of turns of the first coil 43, and using the conductive paddle 64 to guide the current to the wire 65 to form a complete loop. The adjustment method of the second coil 44 is the same. By changing the number of turns of the coil, the accuracy of current detection in the circuit is improved, and the use of a current transformer is realized to detect the current in different circuits, thereby improving the practicality of the device.

[0040] The top of the carrier plate 5 is symmetrically fixed with a replacement component 7. By setting the replacement component 7, when the first current transformer 4 is damaged or short-circuited and cannot be used, the second electromagnet 77 is energized to generate magnetic poles at both ends of the second electromagnet 77. Under the action of the same magnetic poles of the adjacent ends of the third electromagnet 710 and the third permanent magnet 711, the third permanent magnet 711 drives the conductive plate 79 away from the wiring terminal of the first current transformer 4 until it moves to the bottom of the limit plate 75. The third electromagnet 710 is powered off, so that the first current transformer 4 is disconnected from the load circuit in time, and then the placement plate 55 is pushed to move by the electric push rod 712. The first current transformer 4 leaves the conducting seat 71, and the second current transformer 41 is moved into the conducting seat 71. Subsequently, the second electromagnet 77 is energized, and the adjacent ends of the second electromagnet 77 and the second permanent magnet 76 are magnetically repelled, so that the limit plate 75 moves into the conducting seat 71, the limit on the conductive plate 79 is released, and the conductive plate 79 is reset under the elastic action of the second spring 78, so that the conductive plate 79 is in contact with the terminal of the second current transformer 41, so as to continue the current detection. By replacing the current transformer in time, it is more convenient than manual replacement after a problem occurs, and it avoids affecting the normal operation of the device.

[0041] The side wall of the carrier plate 5 is symmetrically fixed with a linkage component 8. By setting the linkage component 8, the airbag 81 is compressed during the process of replacing the current transformer. After the airbag 81 is compressed, the pressure relief valve 83 is opened to blow the air inside it through the air guide pipe 82, thereby generating an airflow with a faster flow rate, blowing away the dust attached to the terminal of the second current transformer 41 that is moving, so that the terminal is kept clean, avoiding the poor contact of the circuit due to dust, and the blown dust will float in the air and will float to other electronic equipment, causing an impact. The airflow blown out of the air guide pipe 82 is used to blow, and the vortex blade 87 rotates to drive the reciprocating wire The lever 86 rotates, so that the sleeve 88 drives the friction block 89 to reciprocate along the adsorption plate 810, and the continuous friction generates static electricity to adsorb the dust to prevent it from floating everywhere, and the arc at the connection point is blown to the cylinder 811 through the shunt pipe 84, and the long arc is cut off by the rotating multiple first metal blades 812, and is brought into the cylinder 811 by rotation and stirring, and the cut long arc is cut again by the multiple groups of second metal blades 813 in the cylinder 811 to make it shorter. As the first metal blade 812 rotates to the exit, the long arc completes the arc extinguishing operation, thereby preventing the long arc from affecting other electronic equipment.

[0042] The adjustment component 6 includes two first rings 61, which are symmetrically fixedly connected to the inside of the first current transformer 4. The side wall of the first current transformer 4 is rotatably connected to a cylindrical gear 67. The side wall of the first current transformer 4 is symmetrically slidably connected to a first rack plate 66 and a second rack plate 68 along a diagonal line. The first rack plate 66 and the second rack plate 68 are both meshed with the cylindrical gear 67, wherein the tooth spacing of the first rack plate 66 and the second rack plate 68 is the same as the pitch of the first coil 43 and the second coil 44, so that each time the second ring 62 moves, it is clamped above the coil, and the side wall of the first rack plate 66 is fixedly connected to The first permanent magnet 610, the first current transformer 4 side wall is fixedly connected with the first electromagnet 611, each first electromagnet 611 is electrically connected to the controller 3, the first electromagnet 611 and the first permanent magnet 610 are located at the same horizontal position, the first current transformer 4 side wall is symmetrically provided with rectangular holes 612, the first current transformer 4 side wall is symmetrically fixedly connected with the support tube 613, one end of the first coil 43 passes through the side wall of the first current transformer 4, and is located inside the adjacent support tube 613, the outer shell of the current transformer is made of magnetic isolation material, and the adjustment component 6 inside the first current transformer 4 and the second current transformer 41 is consistent.

[0043] Each first ring 61 is sleeved on the outer wall of the iron core 45, sleeved but not in contact, and the diameters of the first ring 61 and the second ring 62 are slightly larger than the diameters of the first coil 43 and the second coil 44, and the first ring 61 and the second ring 62 are non-conductive, and the second ring 62 is sleeved on the outside of the first coil 43 and the second coil 44, and each second rack plate 68 side wall is fixedly connected to a connecting plate 69, one end of the connecting plate 69 passes through the rectangular hole 612 and is fixedly connected to the side wall of the second ring 62, a graphene magnetic isolation sleeve 63 is fixedly connected between the first ring 61 and the second ring 62, and a conductive paddle 64 is fixedly connected to the inner wall of each second ring 62, and one of the conductive paddles 64 is connected to the outer wall of the first coil 43. The second coil 43 and the second end of the conductive sheet 65 are connected to each other, and the other conductive sheet 64 is in contact with the outer wall of the second coil 44. The side wall of each conductive sheet 64 is fixedly connected with a wire 65. The middle section of the wire 65 is spirally wound, so that during the movement of the second ring 62, the wire 65 will not cause limitation. One end of one of the wires 65 passes through the adjacent second ring 62 and then passes through the outer wall of the first current transformer 4, and is located inside the adjacent support tube 613 to prevent the connecting wire 614 from being in a loose state, thereby pulling up the terminal to facilitate subsequent line connection. The other wire 65 passes through the adjacent second ring 62 and then is connected to the ammeter. The first coil 43 and one end of the wire 65 are fixedly connected with the connecting wire 614.

[0044] In this solution: SPC module 2 is the core part of the three-phase unbalanced intelligent regulating device. SPC module 2 detects the current of the system in real time through an external current transformer, analyzes the positive and negative zero sequence and reactive power of the unbalanced current by using a control algorithm, triggers the power device IGBT, causes the inverter to emit an opposite offset current, thereby eliminating the imbalance and compensating for reactive power, and sends the system current information to the internal controller 3 for processing and analysis. This real-time monitoring and intelligent regulation function enables SPC module 2 to effectively solve the three-phase unbalance problem and improve the stability and efficiency of the power system; according to the principle of the current transformer, the first coil 43 is electrically connected to the load circuit through a conductive wire, and the second coil 44 is electrically connected to the ammeter through a conductive wire, thereby detecting the current in the load circuit;

[0045] Through an external sliding rheostat and a current redirector, the controller 3 is used to adjust the current size through the first electromagnet 611 by using the external sliding rheostat, so that the electromagnetic force of the first electromagnet 611 changes accordingly, and in conjunction with the use of the current redirector, the magnetic poles of the adjacent ends of the first electromagnet 611 and the first permanent magnet 610 change to achieve mutual repulsion or attraction, so that the first rack plate 66 changes its position accordingly, and cooperates with the cylindrical gear 67 to drive the second rack plate 68 to move toward each other accordingly. The second rack plate 68 moves, and the second ring 62 is driven to move synchronously on the first coil 43, changing the number of turns of the first coil 43, and using the conductive paddle 64, the current is directed to the wire 65 to form a complete loop. The adjustment method of the second coil 44 is the same. By changing the number of turns of the coil, the accuracy of current detection in the circuit is improved, and the use of a current transformer is realized to detect the current in different circuits, thereby improving the practicality of the device.

[0046] In order to solve the problem that the coil may be damaged, have poor contact or age due to long-term use of the current transformer, causing the coil to be broken or short-circuited, which will lead to the problem that the output current value cannot be detected normally or the output value is inaccurate, and when the current transformer has problems, most of them are manually replaced and repaired, which is time-consuming and affects the normal operation of the device. Fig. 9 - Fig.12 As shown, the following preferred technical solutions are provided:

[0047] The replacement component 7 includes two guide seats 71, which are symmetrically fixedly connected to the top of the supporting plate 5, each of which is an inverted U-shaped structure, and a card slot 53 is provided on the inner wall of the slide groove 54. An electric push rod 712 is fixedly connected to the inner wall of the SPC module 2, and a push plate 713 is fixedly connected to the movable end of the electric push rod 712. The push plate 713 is slidably connected to the inside of the card slot 53, and an installation groove 51 is provided on the inner wall of the supporting plate 5.

[0048] A groove body 73 is formed on the inner side wall of the guide seat 71, and a first spring 74 is symmetrically fixedly connected to the inner wall of the groove body 73. The two first springs 74 are jointly fixedly connected to a limit plate 75. The limit plate 75 is an inverted U-shaped structure. The push plate 713 is fixedly connected to the side wall of the placement plate 55. A sliding hole 52 is formed on the inner bottom wall of the slide groove 54, and a connecting block 715 is symmetrically fixedly connected to the bottom wall of the placement plate 55.

[0049] Each connecting block 715 passes through the adjacent sliding hole 52 and extends to the inside of the mounting groove 51. The two connecting blocks 715 are commonly fixedly connected to the pressure plate 714. One end of the limiting plate 75 is a wedge-shaped structure, and the other end is fixedly connected to the second permanent magnet 76. The inner bottom wall of the guide seat 71 is fixedly connected to the second electromagnet 77, and the second electromagnet 77 is electrically connected to the controller 3. The inner top wall of the guide seat 71 is fixedly connected to the top plate 72. The inner bottom wall of the guide seat 71 is symmetrically fixedly connected to the second springs 78. The two second springs 78 are commonly fixedly connected to a conductive plate 79, and the conductive plate 79 is electrically connected to the load circuit.

[0050] In this scheme: in the initial state, the conductive plate 79 is located above the limit plate 75, and under the elastic action of the second spring 78, the conductive plate 79 is in contact with the top plate 72 and the connecting wire 614. When the first current transformer 4 is damaged or short-circuited and cannot be used, the second electromagnet 77 is energized to generate magnetic poles at both ends of the second electromagnet 77. Under the action of the same magnetic poles of the adjacent ends of the third electromagnet 710 and the third permanent magnet 711, the third permanent magnet 711 drives the conductive plate 79 away from the wiring terminal of the first current transformer 4 until it moves to the bottom of the limit plate 75. The third electromagnet 710 is de-energized, and the magnetic force between the third electromagnet 710 and the third permanent magnet 711 is greater than the elastic force of the second spring 78, so that the first current transformer 4 is disconnected from the load circuit in time. , and then the placement plate 55 is pushed to move by the electric push rod 712, so that the first current transformer 4 leaves the conductive seat 71, and the second current transformer 41 is moved into the conductive seat 71, and then the second electromagnet 77 is energized, and the adjacent ends of the second electromagnet 77 and the second permanent magnet 76 are magnetically repelled, so that the limit plate 75 moves into the conductive seat 71, and the limit on the conductive plate 79 is released, wherein the magnetic force of the second electromagnet 77 and the second permanent magnet 76 is greater than the elastic force of the first spring 74, and reset under the elastic action of the second spring 78, so that the conductive plate 79 is in contact with the terminal of the second current transformer 41, so as to continue the current detection. By replacing the current transformer in time, it is more convenient than manual replacement after a problem occurs, and it avoids affecting the normal operation of the device.

[0051] In order to solve the problem that during the placement of the standby current transformer, dust will be attached to the terminal of the standby current transformer due to its non-use. If the standby current transformer with dust on the terminal is directly connected to the load circuit, the dust will cause poor circuit contact, and in severe cases, a short circuit will be caused. In addition, an arc will be generated in the circuit where the standby current transformer is connected, and the arc will affect other electronic equipment. There are technical problems with limitations, such as Figure 4 and Fig.13 - Fig.15 As shown, the following preferred technical solutions are provided:

[0052] The linkage assembly 8 includes an airbag 81, one side of the airbag 81 is fixedly connected to the inner wall of the mounting groove 51, the top of the supporting plate 5 is symmetrically fixedly connected to an adsorption plate 810, the side wall of the guide seat 71 is rotatably connected to a reciprocating screw 86, the side wall of the guide seat 71 is fixedly connected to a cylinder 811, and the top of the supporting plate 5 is symmetrically fixedly connected to a support plate 85.

[0053] One end of the reciprocating screw 86 is rotatably connected to the side wall of the adjacent support plate 85, and the reciprocating screw 86 is threadedly connected to a sleeve 88, and a friction block 89 is fixedly connected to the bottom end of the sleeve 88, and the friction block 89 is in contact with the adsorption plate 810. The other end of the reciprocating screw 86 is rotatably connected to the cylinder 811, and a plurality of groups of first metal blades 812 are fixedly connected to the side wall at equal angles. An opening is provided at the top of the cylinder 811, and a plurality of groups of second metal blades 813 are fixedly connected to the inner wall at equal angles, and the first metal blades 812 and the second metal blades 813 are alternately arranged.

[0054] The side walls of the airbag 81 are symmetrically fixedly connected with air guide tubes 82. One end of each air guide tube 82 passes through the top wall of the installation groove 51 and extends to the guide seat 71. The end of the air guide tube 82 is fixedly connected with a shunt tube 84. A pressure relief valve 83 is installed inside each air guide tube 82.

[0055] In this solution: during the process of replacing the current transformer, the pressure plate 714 is driven to move synchronously with the placement plate 55, thereby compressing the airbag 81. After the airbag 81 is compressed, the pressure relief valve 83 is opened to allow the air flow inside to be blown out through the air guide pipe 82, thereby generating an airflow with a faster flow rate, blowing away the dust attached to the terminal of the second current transformer 41 that is being moved, so that the terminal remains clean and the poor circuit contact is avoided due to dust. The blown dust will float in the air and will float to other electronic equipment, causing an impact. The airflow blown out of the air guide pipe 82 is used to blow the vortex blade 87 to rotate, driving the reciprocating screw 86 to rotate, so that the sliding sleeve 88 drives the friction Block 89 reciprocates along the adsorption plate 810, and continuously rubs to generate static electricity, which adsorbs dust to prevent it from floating everywhere. The static electricity generated by friction is very small and only serves to absorb dust, and will not affect other electronic equipment. The arc at the connection point is blown to the cylinder 811 through the shunt pipe 84, and the long arc is cut off by the rotating multiple first metal blades 812, and is rotated and stirred into the cylinder 811. The cut long arc is cut again by the multiple groups of second metal blades 813 in the cylinder 811 to make it shorter. As the first metal blade 812 rotates to the exit, the long arc completes the arc extinguishing operation, thereby preventing the long arc from affecting other electronic equipment.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power electronic three-phase unbalanced intelligent regulating device, comprising a chassis (1), an SPC module (2), a controller (3), a first current transformer (4) and a second current transformer (41), characterized in that: The SPC module (2) is fixedly mounted on the inner bottom wall of the chassis (1); the controller (3) is fixedly mounted on the inner side wall of the chassis (1); a carrying plate (5) is fixedly connected inside the SPC module (2); a slide groove (54) is provided at the top of the carrying plate (5); a placement plate (55) is slidably connected to the inner wall of the slide groove (54); the first current transformer (4) and the second current transformer (41) are fixedly mounted side by side in the vertical direction at the top of the placement plate (55); an annular iron core (45) is fixedly mounted inside the first current transformer (4) and the second current transformer (41); the iron core (45) is an annular structure; a first coil (43) and a second coil (44) are symmetrically fixedly mounted on the side wall of the iron core (45); an adjustment component (6) is slidably mounted on the side wall of the first coil (43) and the second coil (44); a replacement component (7) is symmetrically fixedly mounted on the top of the carrying plate (5); and a linkage component (8) is symmetrically fixedly mounted on the side wall of the carrying plate (5).

2. A power electronic three-phase unbalanced intelligent regulating device according to claim 1, characterized in that: The regulating assembly (6) comprises two first rings (61), the two first rings (61) are symmetrically fixedly connected inside the first current transformer (4), the side wall of the first current transformer (4) is rotatably connected to a cylindrical gear (67), the side wall of the first current transformer (4) is symmetrically slidably connected to a first rack plate (66) and a second rack plate (68) along a diagonal line, the first rack plate (66) and the second rack plate (68) are both meshedly connected to the cylindrical gear (67), and the side wall of the first rack plate (66) is fixedly connected to a first permanent magnet (610), A first electromagnet (611) is fixedly connected to the side wall of the first current transformer (4), each of the first electromagnets (611) is electrically connected to the controller (3), the first electromagnet (611) and the first permanent magnet (610) are located at the same horizontal position, rectangular holes (612) are symmetrically opened on the side wall of the first current transformer (4), a support tube (613) is symmetrically fixedly connected to the side wall of the first current transformer (4), and one end of the first coil (43) passes through the side wall of the first current transformer (4) and is located inside an adjacent support tube (613).

3. A power electronic three-phase unbalanced intelligent regulating device according to claim 2, characterized in that: Each of the first sleeve rings (61) is sleeved on the outer wall of the iron core (45); the first coil (43) and the second coil (44) are sleeved on the outside with a second sleeve ring (62); the side wall of each of the second rack plates (68) is fixedly connected to a connecting plate (69); one end of the connecting plate (69) passes through the rectangular hole (612) and is fixedly connected to the side wall of the second sleeve ring (62); a graphene magnetic isolation sleeve (63) is fixedly connected between the first sleeve ring (61) and the second sleeve ring (62); and the inner wall of each of the second sleeve rings (62) is fixedly connected to a conductive pick. (64), one of the conductive paddles (64) is in contact with the outer wall of the first coil (43), and the other conductive paddle (64) is in contact with the outer wall of the second coil (44), and the side wall of each conductive paddle (64) is fixedly connected to a wire (65), one end of one of the wires (65) passes through the adjacent second ring (62) and then passes through the outer wall of the first current transformer (4), and is located inside the adjacent support tube (613), and one end of the first coil (43) and the wire (65) are fixedly connected to a connecting wire (614).

4. The power electronic three-phase unbalanced intelligent regulating device according to claim 1, characterized in that: The replacement component (7) comprises two guide seats (71), the two guide seats (71) are symmetrically fixedly connected to the top of the carrier plate (5), each of the guide seats (71) is an inverted U-shaped structure, the inner wall of the slide groove (54) is provided with a card slot (53), the inner wall of the SPC module (2) is fixedly connected with an electric push rod (712), the movable end of the electric push rod (712) is fixedly connected with a push plate (713), the push plate (713) is slidably connected to the inside of the card slot (53), and the inner wall of the carrier plate (5) is provided with a mounting groove (51).

5. A power electronic three-phase unbalanced intelligent regulating device according to claim 4, characterized in that: A groove body (73) is formed on the inner side wall of the guide seat (71), and a first spring (74) is symmetrically fixedly connected to the inner wall of the groove body (73). Two first springs (74) are commonly fixedly connected to a limit plate (75), and the limit plate (75) is an inverted U-shaped structure. The push plate (713) is fixedly connected to the side wall of the placement plate (55), and a sliding hole (52) is formed on the inner bottom wall of the slide groove (54), and a connecting block (715) is symmetrically fixedly connected to the bottom wall of the placement plate (55).

6. A power electronic three-phase unbalanced intelligent regulating device according to claim 5, characterized in that: Each of the connecting blocks (715) passes through the adjacent sliding holes (52) and then extends into the interior of the mounting groove (51); the two connecting blocks (715) are fixedly connected to the pressure plate (714) together; one end of the limit plate (75) is a wedge-shaped structure, and the other end is fixedly connected to a second permanent magnet (76); the inner bottom wall of the guide seat (71) is fixedly connected to a second electromagnet (77); the second electromagnet (77) is electrically connected to the controller (3); the inner top wall of the guide seat (71) is fixedly connected to a top plate (72); the inner bottom wall of the guide seat (71) is symmetrically fixedly connected to second springs (78); and the two second springs (78) are fixedly connected to a conductive plate (79) together.

7. A power electronic three-phase unbalanced intelligent regulating device according to claim 4, characterized in that: The linkage assembly (8) comprises an airbag (81), one side of the airbag (81) is fixedly connected to the inner wall of the mounting groove (51), the top of the bearing plate (5) is symmetrically fixedly connected to an adsorption plate (810), a reciprocating screw (86) is rotatably connected to the side wall of the guide seat (71), the side wall of the guide seat (71) is fixedly connected to a cylinder (811), and the top of the bearing plate (5) is symmetrically fixedly connected to a support plate (85).

8. A power electronic three-phase unbalanced intelligent regulating device according to claim 7, characterized in that: One end of the reciprocating screw (86) is rotatably connected to the side wall of the adjacent support plate (85); the reciprocating screw (86) is threadedly connected to a sliding sleeve (88); a friction block (89) is fixedly connected to the bottom end of the sliding sleeve (88); the friction block (89) is in contact with the adsorption plate (810); the other end of the reciprocating screw (86) is rotatably connected to the cylinder (811); a plurality of groups of first metal blades (812) are fixedly connected to the side wall at equal angles; an opening is provided at the top end of the cylinder (811); a plurality of groups of second metal blades (813) are fixedly connected to the inner wall at equal angles; the first metal blades (812) and the second metal blades (813) are alternately arranged.

9. A power electronic three-phase unbalanced intelligent regulating device according to claim 7, characterized in that: The side walls of the airbag (81) are symmetrically fixedly connected to air guide tubes (82), and one end of each of the air guide tubes (82) penetrates the inner top wall of the installation groove (51) and extends to the guide seat (71).

10. A power electronic three-phase unbalanced intelligent regulating device according to claim 9, characterized in that: The end of the air guide tube (82) is fixedly connected to a shunt tube (84), and a pressure relief valve (83) is installed inside each air guide tube (82).

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