Stator outgoing line structure of distributed phase modifier

Abstract

The utility model relates to the technical field of distributed phase modifier stators, and particularly discloses a distributed phase modifier stator outgoing line structure, which comprises two groups of coils arranged on a stator iron core, each group of coils comprises three leads, and the three leads of each group of coils are uniformly arranged along the circumferential direction of the stator iron core; the two groups of coils are arranged in a staggered manner; the three wires of one group of coils are connected with the three wires of the other group of coils in a one-to-one correspondence manner through connecting pieces to form a three-phase winding; the end part of each phase of winding is a leading-out wire; the left and right sides of the stator core are respectively provided with three leading-out copper bars. The head and tail ends of each phase winding are respectively connected with leading-out copper bars on the left and right sides of the stator core through connecting rings. Compared with the prior art, the outgoing lines at the two ends of the three-phase winding can be led out from the left side and the right side of the distributed phase modifier stator iron core respectively, the installation space is fully utilized, and equipment installation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of distributed phase regulator stators, and specifically discloses a distributed phase regulator stator lead-out wire structure. Background Art

[0002] In power systems, a distributed phase-shifting device specifically refers to a highly integrated, small-capacity synchronous phase-shifting device deployed within renewable energy power stations. It is used to strengthen voltage support in the sending-end near-region system and features excellent transient and steady-state characteristics and reactive power regulation capabilities. Distributed phase-shifting devices are primarily used to improve power system efficiency and quality. By implementing distributed energy storage and power regulation, they can reduce power transmission losses, improve power quality, and address issues related to grid integration of renewable energy generation.

[0003] Distributed phase regulators are typically located at the zero-meter level and utilize a monolithic, quick-install structure. Six connectors are connected to the corresponding lines from the side of the phase regulator, and equipment such as transformers and neutral-point grounding devices are installed along the lines. All of these devices require a certain amount of space for installation.

[0004] The lead wires of the stator windings of existing distributed phase regulators are all led out from the same side, which increases the difficulty of installation when the above-mentioned equipment is centrally installed on the same side of the phase regulator. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a distributed phase regulator stator lead-out wire structure to solve the problem that the lead-out wires of the stator windings of the distributed phase regulator are all led out from the same side, resulting in the above-mentioned devices being centrally installed on the same side of the phase regulator and being difficult to install.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A distributed phase condenser stator lead-out structure comprises two sets of coils mounted on the stator core. Each set of coils includes three conductors, and the three conductors of each set of coils are evenly arranged along the circumference of the stator core. The two sets of coils are staggered. The three conductors of the first set of coils are connected to the three conductors of the second set of coils via connectors, forming a three-phase winding. The ends of each phase winding serve as lead-out wires. Three lead-out copper bars are provided on both the left and right sides of the stator core. The leading and trailing ends of each phase winding are connected to the lead-out copper bars on the left and right sides of the stator core via connecting rings. This structure allows the three-phase windings to be led out from the left and right sides of the distributed phase condenser stator core, fully utilizing the installation space and facilitating equipment installation.

[0008] Preferably, the center lines of the three copper bars on the left side of the stator core and the center lines of the three copper bars on the right side of the stator core are in the same plane, and the plane is spaced apart from the center line of the stator core, which can facilitate the installation and fixation of the stator and avoid interference.

[0009] Preferably, the connecting piece includes an arc plate 1; an L-shaped plate 1 is fixedly provided at both ends of the arc plate 1; a connecting plate 1 is provided at one end of the L-shaped plate 1; and the ends of the wires are connected to the connecting plate 1, so as to facilitate the connection between the wires.

[0010] Preferably, the transverse section and the longitudinal section of the L-shaped plate 1 are both perpendicular to the arc plate 1; the plane of the connecting plate 1 is perpendicular to the transverse section of the L-shaped plate 1 and also perpendicular to the arc plate 1. This facilitates space utilization and ensures a secure connection.

[0011] Preferably, the connecting ring includes a second circular arc plate; a second L-shaped plate is fixedly mounted on one end of the second circular arc plate; a second connecting plate is mounted on the second end of the L-shaped plate; a third connecting plate is fixedly mounted on the other end of the second circular arc plate; and a through hole is provided on the third connecting plate to facilitate the connection of the lead wires of the three-phase winding and the lead copper busbar.

[0012] Preferably, the transverse section and the longitudinal section of the L-shaped plate 2 are both perpendicular to the arc plate 2; the plane where the connecting plate 2 is located is perpendicular to the transverse section of the L-shaped plate 2 and is also perpendicular to the arc plate 2. This facilitates space utilization and ensures a firm connection.

[0013] The beneficial effects of the utility model are as follows: the three-phase windings can be led out from the left and right sides of the stator core of the distributed phase modulator respectively, which fully utilizes the installation space and facilitates the installation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the expansion of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connector of the utility model;

[0018] Figure 4 This is a structural diagram of the connecting ring of the utility model;

[0019] Figure 5 This is a schematic diagram of the installation state of the first connecting ring of the utility model;

[0020] Figure 6 This is a schematic diagram of the installation state of the second connecting ring of the utility model;

[0021] Figure 7 This is a schematic diagram of the installation state of the first connecting member of the utility model;

[0022] Figure 8 This is a schematic diagram of the installation state of the second connecting member of the utility model;

[0023] Figure 9 This is a schematic diagram of the installation state of the third connecting ring of the utility model;

[0024] Figure 10 This is a schematic diagram of the installation state of the fourth connecting ring of the present invention;

[0025] Figure 11 This is a schematic diagram of the installation state of the third connecting member of the present invention;

[0026] Figure 12 This is a schematic diagram of the installation state of the fifth connecting ring of the present invention;

[0027] Figure 13 This is a schematic diagram of the installation state of the sixth connecting ring of the present invention.

[0028] Description of reference numerals:

[0029] 1-first connecting ring, 2-second connecting ring, 3-first connecting piece, 4-second connecting piece, 5-third connecting ring, 6-fourth connecting ring, 7-third connecting piece, 8-fifth connecting ring, 9-sixth connecting ring, 10-stator core, 11-U1 connecting copper bar, 12-V1 connecting copper bar, 13-W1 connecting copper bar, 14-W2 connecting copper bar, 15-V2 connecting copper bar, 16-U2 connecting copper bar, 17-arc plate 1, 18-L-shaped plate 1, 19-connecting plate 1, 20-arc plate 2, 21-L-shaped plate 2, 22-connecting plate 2, 23-connecting plate 3;

[0030] Figure 1 In the figure, U1 and U1' are the two ends of the first wire of the first group of coils; V1 and V1' are the two ends of the second wire of the first group of coils; W1 and W1' are the two ends of the third wire of the first group of coils; U2 and U2' are the two ends of the first wire of the second group of coils; V2 and V2' are the two ends of the second wire of the second group of coils; W2 and W2' are the two ends of the third wire of the second group of coils;

[0031] There are 24 radial lines passing through the axis of the stator core and with equal intervals. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0033] like Figure 1-2 The structure depicts a distributed phase-shifting condenser stator lead-out wire structure, comprising two coils mounted on a stator core 10. Each coil consists of three conductors, evenly spaced along the circumference of the stator core 10. The two coils are staggered, with the three conductors of one coil connected to the three conductors of the other coil via connectors, forming a three-phase winding. Three lead-out copper bars are located on each side of the stator core 10, and the leading and trailing ends of each phase winding are connected to the lead-out copper bars on the left and right sides of the stator core 10 via connecting rings. This structure allows the three-phase windings to be led out of the stator core 10 on both sides, fully utilizing installation space and facilitating equipment installation. The centerlines of the three lead-out copper bars on the left and right sides of the stator core 10 lie in the same plane, and this plane is spaced apart from the centerline of the stator core 10. This facilitates stator installation and prevents interference.

[0034] In the above configuration, the second connector 4 connects U1' and U2' together, essentially connecting the first wire of one coil with the first wire of the other coil to form the first phase winding. The first connector 3 connects V1' and V2' together, essentially connecting the second wire of one coil with the second wire of the other coil to form the second phase winding. The third connector 7 connects W1' and W2' together, essentially connecting the third wire of one coil with the third wire of the other coil to form the third phase winding. The ends of each phase winding serve as lead wires. The first connector 3, second connector 4, and third connector 7 have identical structures, each including an arc plate 17. L-shaped plates 18 are fixedly mounted at both ends of the arc plate 17. Connecting plates 19 are mounted at the ends of the L-shaped plates 18. The ends of the wires are connected to the connecting plates 19, facilitating connection between the wires. The transverse section and the longitudinal section of the L-shaped plate 18 are both perpendicular to the arc plate 17; the plane where the connecting plate 19 is located is perpendicular to the transverse section of the L-shaped plate 18, and is also perpendicular to the arc plate 17. It is convenient to use space and ensure a firm connection. The first connecting member 3, the second connecting member 4 and the third connecting member 7 are arranged at different positions, and the angles between the connecting lines of the connecting plates 19 arranged at both ends of the three connecting members and the horizontal plane passing through the axis of the stator core 10 are different. The angles between the connecting lines of the connecting plates 19 arranged at both ends of the three connecting members and the vertical plane passing through the axis of the stator core 10 are different. Figure 3 、 7 As shown, the angle between the connecting line of the connecting plate 19 at both ends of the first connecting member 3 and the vertical plane passing through the axis of the stator core 10 is 17.5°. Figure 3 、 8 As shown, the angle between the connecting line of the connecting plate 19 at both ends of the second connecting member 4 and the vertical plane passing through the axis of the stator core 10 is 42.5°. Figure 3 、 11 As shown, the angle between the connecting line of the connecting plates 19 at both ends of the third connecting member 7 and the second connecting member 4 and the horizontal plane passing through the axis of the stator core 10 is 12.5°.

[0035] Use the first connecting ring 1 to lead the U1 end of the first phase winding to the U1 connecting copper bar 11, use the third connecting ring 5 to lead the V1 end of the second phase winding to the V1 connecting copper bar 12, and use the fifth connecting ring 8 to lead the W1 end of the third phase winding to the W1 connecting copper bar 13;

[0036] Use the second connecting ring 2 to lead the U2 end of the first phase winding to the U2 connecting copper bus 16, use the fourth connecting ring 6 to lead the V2 end of the second phase winding to the V2 connecting copper bus 15, and use the sixth connecting ring 9 to lead the W2 end of the third phase winding to the W2 connecting copper bus 14.

[0037] On the left side, the U1 connecting copper busbar 11, V1 connecting copper busbar 12, and W1 connecting copper busbar 13 are arranged sequentially from the excitation end to the non-excitation end of the phase modulator. On the right side, the U2 connecting copper busbar 16, V2 connecting copper busbar 15, and W2 connecting copper busbar 14 are arranged sequentially from the excitation end to the non-excitation end of the phase modulator. The same equipment and circuits can be installed on the left and right sides of the phase modulator in two different phase sequences: U, V, W, and W, V, U. This provides more options for on-site layout and improves the adaptability of phase modulator installation.

[0038] The first connecting ring 1, the second connecting ring 2, the third connecting ring 5, the fourth connecting ring 6, the fifth connecting ring 8, and the sixth connecting ring 9 have the same structure, each including an arc plate 20; an L-shaped plate 21 is fixedly mounted on one end of the arc plate 20; a connecting plate 22 is mounted on the end of the L-shaped plate 21; a connecting plate 3 23 is fixedly mounted on the other end of the arc plate 20; and a through hole is provided on the connecting plate 3 23. This facilitates the connection of the lead wires and the lead copper busbars at the ends of the three-phase windings. The transverse and longitudinal sections of the L-shaped plate 21 are both perpendicular to the arc plate 20; the plane on which the connecting plate 22 lies is perpendicular to the transverse section of the L-shaped plate 21 and also perpendicular to the arc plate 20. This facilitates the use of space and ensures a secure connection. The first connecting ring 1, the second connecting ring 2, the third connecting ring 5, the fourth connecting ring 6, the fifth connecting ring 8, and the sixth connecting ring 9 differ in the length of the arc of the arc plate 20. Moreover, at the arrangement positions of the first connecting ring 1, the second connecting ring 2, the third connecting ring 5, the fourth connecting ring 6, the fifth connecting ring 8 and the sixth connecting ring 9, the angles between the connecting line of the second connecting plate 22 and the axis of the stator core 10 and the horizontal plane and the vertical plane passing through the axis of the stator core 10 are different, such as Figure 4 、 5 As shown, the angle between the connecting line between the connecting plate 22 of the first connecting ring 1 and the axis of the stator core 10 and the vertical plane passing through the axis of the stator core 10 is 12.5°, and it is arranged above the horizontal plane passing through the axis of the stator core 10; Figure 4 、 6 As shown, the angle between the connecting line of the connecting plate 22 of the second connecting ring 2 and the axis of the stator core 10 and the vertical plane passing through the axis of the stator core 10 is 12.5°, and the connecting plate 22 of the second connecting ring 2 is arranged below the horizontal plane passing through the axis of the stator core 10, and the connecting plate 3 23 of the second connecting ring 2 is arranged above the horizontal plane passing through the axis of the stator core 10; Figure 4 、 9 As shown, the angle between the connecting line of the connecting plate 22 of the third connecting ring 5 and the axis of the stator core 10 and the horizontal plane passing through the axis of the stator core 10 is 17.5°; Figure 4 、 10As shown, the angle between the connecting line of the connecting plate 22 of the fourth connecting ring 6 and the axis of the stator core 10 and the horizontal plane passing through the axis of the stator core 10 is 17.5°, and the arc plate 20 of the third connecting ring 5 is longer than the arc plate 20 of the fourth connecting ring 6; Figure 4 、 12 As shown, the angle between the connecting line of the connecting plate 22 of the fifth connecting ring 8 and the axis of the stator core 10 and the vertical plane passing through the axis of the stator core 10 is 47.5°; Figure 4 、 13 As shown, the angle between the connecting line between the connecting plate 22 of the sixth connecting ring 9 and the axis of the stator core 10 and the vertical plane passing through the axis of the stator core 10 is 47.5°.

[0039] Although the present invention has been described in detail with reference to the accompanying drawings and in conjunction with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, persons of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall be within the scope of the present invention. Any changes or substitutions that can be easily conceived by persons skilled in the art within the technical scope disclosed in the present invention shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A distributed phase regulator stator lead wire structure, comprising two sets of coils arranged on a stator core (10), each set of coils comprising three conductors, characterized in that: The three wires of each coil group are evenly arranged along the circumferential direction of the stator core (10); the two coil groups are staggered; the three wires of the first coil group are connected to the three wires of the second coil group via connectors, forming a three-phase winding; the end of each phase winding is a lead wire; three lead copper bars are provided on the left and right sides of the stator core (10); the first and tail ends of each phase winding are connected to the lead copper bars on the left and right sides of the stator core (10) via connecting rings.

2. The distributed phase condenser stator lead wire structure according to claim 1, characterized in that: The center lines of the three lead-out copper bars on the left side of the stator core (10) and the center lines of the three lead-out copper bars on the right side of the stator core (10) are in the same plane, and the plane is spaced apart from the center line of the stator core (10).

3. The distributed phase condenser stator lead wire structure according to claim 2, characterized in that: The connecting piece includes an arc plate 1 (17); an L-shaped plate 1 (18) is fixedly provided at both ends of the arc plate 1 (17); a connecting plate 1 (19) is provided at the end of the L-shaped plate 1 (18); and the end of the wire is connected to the connecting plate 1 (19).

4. The distributed phase condenser stator lead wire structure according to claim 3, characterized in that: The transverse section and the longitudinal section of the L-shaped plate 1 (18) are both perpendicular to the arc plate 1 (17); the plane where the connecting plate 1 (19) is located is perpendicular to the transverse section of the L-shaped plate 1 (18) and is also perpendicular to the arc plate 1 (17).

5. The distributed phase condenser stator lead wire structure according to claim 2, characterized in that: The connecting ring includes an arc plate 2 (20); an L-shaped plate 2 (21) is fixedly provided at one end of the arc plate 2 (20); a connecting plate 2 (22) is provided at the end of the L-shaped plate 2 (21); a connecting plate 3 (23) is fixedly provided at the other end of the arc plate 2 (20); and a through hole is provided on the connecting plate 3 (23).

6. The distributed phase condenser stator lead wire structure according to claim 5, characterized in that: The transverse section and the longitudinal section of the L-shaped plate 2 (21) are both perpendicular to the arc plate 2 (20); the plane where the connecting plate 2 (22) is located is perpendicular to the transverse section of the L-shaped plate 2 (21) and is also perpendicular to the arc plate 2 (20).

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