阅读说明：本技术 一种三相抽能电抗器结构 (Three-phase energy-extraction reactor structure ) 是由 莫文雄 郝宁娟 赵睿南 雷绒 王勇 于 2021-06-23 设计创作，主要内容包括：本发明公开了一种三相抽能电抗器结构,包括油箱(6),以及并排放在油箱(6)内的三个单项抽能电抗器,每个单项抽能电抗器均包括铁心心柱(4),绕制在铁心心柱(4)外侧的并联电抗器线圈(1),设置在并联电抗器线圈(1)外侧的铁心旁轭(3),以及对称绕制在铁心旁轭(3)的抽能线圈(2)。本发明采用三相一体式结构,相与相的距离拉近,结构更紧凑,更经济。(The invention discloses a three-phase energy extraction reactor structure which comprises an oil tank (6) and three single energy extraction reactors arranged in parallel in the oil tank (6), wherein each single energy extraction reactor comprises an iron core column (4), a parallel reactor coil (1) wound on the outer side of the iron core column (4), an iron core side yoke (3) arranged on the outer side of the parallel reactor coil (1) and energy extraction coils (2) symmetrically wound on the iron core side yoke (3). The invention adopts a three-phase integrated structure, the distance between the phases is shortened, the structure is more compact and the method is more economical.)

1. The three-phase energy extraction reactor structure is characterized by comprising an oil tank (6) and three single energy extraction reactors arranged in parallel in the oil tank (6), wherein each single energy extraction reactor comprises an iron core column (4), a shunt reactor coil (1) wound on the outer side of the iron core column (4), an iron core side yoke (3) arranged on the outer side of the shunt reactor coil (1), and energy extraction coils (2) symmetrically wound on the iron core side yoke (3).

2. A three-phase energy pumping reactor structure according to claim 1, characterized in that three single-phase energy pumping reactors are arranged horizontally or vertically in the oil tank (6).

3. A three-phase energy-extracting reactor structure according to claim 1, characterized in that the core magnetic shunt (5) is arranged at the upper and lower ends of the core leg (4) of each single-phase energy-extracting reactor.

4. A three-phase energy-extracting reactor structure as claimed in claim 1, characterized in that the ends of the energy-extracting coils (2) of the three single-phase energy-extracting reactors are connected by adopting a delta connection method.

5. A three-phase energy extracting reactor structure according to claim 1, characterized in that the ends of the energy extracting coils (2) of three single-phase energy extracting reactors are connected by star connection.

6. A three-phase energy extraction reactor structure according to claim 1, characterized in that the head ends of the energy extraction coils (2) of three single phase energy extraction reactors are connected to the grid.

7. A three-phase energy extraction reactor structure according to claim 1, characterized in that the shunt reactor coils (1) of three single phase energy extraction reactors are used for connection with an external transformer.

8. A three-phase energy-extracting reactor structure according to claim 1, characterized in that the silicon steel sheet of the core leg (4) is a cold rolled silicon steel sheet.

9. A three-phase energy-extracting reactor structure as claimed in claim 1, characterized in that the conducting wire of the parallel reactor coil (1) adopts flat copper wire, round copper wire, flat aluminum wire or round aluminum wire, and the conducting wire of the energy-extracting coil (2) adopts flat copper wire, round copper wire, flat aluminum wire or round aluminum wire.

10. A three-phase energy extraction reactor structure according to claim 1, characterized in that the energy extraction coils (2) of three single-phase energy extraction reactors can be wound on a core side yoke (3) and connected together by electrical connection.

Technical Field

The invention belongs to the technical field of reactors, and particularly relates to a three-phase energy extraction reactor structure.

Background

The existing energy extraction reactors are all of three single-phase body structures, and the three single-phase energy extraction reactors occupy a large area. At present, offshore wind power is being vigorously developed, the utilization of wind power energy is promoted, and a plurality of power stations need energy extraction reactors capable of supplying power to offshore platforms. And the power transmission and transformation platform is constructed on the sea, the occupied area is small as much as possible, and the three single-phase energy extraction reactors adopting the old structures occupy too large area and cannot meet the requirements.

At present, although single-phase energy extraction reactor products are produced by some domestic manufacturers, the energy extraction reactor does not have patent technology related to an integral structure. By searching patents and documents, the closest patent technologies are: a cast type energy extraction coil with high short circuit resistance; applicant (patentee): baoding Tianwei Bao transformation gas Co., Ltd; application date: 2018.05.29.

the existing single-phase energy-extracting reactor is a single-phase energy-extracting reactor, a group of three bodies are arranged, each phase of oil tank is provided with self accessories, such as assemblies of an oil conservator, a ladder, a control cabinet and the like, and the assemblies occupy certain space, so that the volume of a product is increased. And when the reactor is arranged on site, a certain distance is required to be reserved between the groups, so that the fireproof effect is achieved, the occupied area is large, and the requirements for projects with small occupied area of the reactor cannot be met.

Disclosure of Invention

The invention aims to solve the problem that the occupied area of a reactor is large in the prior art, and provides a three-phase energy-extraction reactor structure which adopts a three-phase integrated structure, the phase-to-phase distance is shortened, and the structure is more compact and more economical.

The invention is realized by adopting the following technical scheme:

a three-phase energy extraction reactor structure comprises an oil tank and three single energy extraction reactors arranged in parallel in the oil tank, wherein each single energy extraction reactor comprises an iron core column, a parallel reactor coil wound outside the iron core column, an iron core return yoke arranged outside the parallel reactor coil and energy extraction coils symmetrically wound on the iron core return yoke.

The invention is further improved in that three single energy pumping reactors are arranged in the oil tank in a transverse or vertical mode.

The invention is further improved in that the upper end and the lower end of the iron core column of each single-phase energy-extracting reactor are also provided with iron core magnetic shunts.

The invention is further improved in that the tail ends of the energy extraction coils of the three single-phase energy extraction reactors are connected by adopting a delta connection method.

The invention is further improved in that the tail ends of the energy extraction coils of the three single-phase energy extraction reactors are connected in a star connection mode.

The invention is further improved in that the head ends of the energy extraction coils of the three single-phase energy extraction reactors are connected with a power grid.

The invention is further improved in that the parallel reactor coils of the three single-phase energy-extracting reactors are used for connecting with an external transformer.

The invention is further improved in that the silicon steel sheets of the iron core columns are cold rolled silicon steel sheets.

The invention is further improved in that the parallel reactor coil adopts flat copper wires, round copper wires, flat aluminum wires or round aluminum wires as the conducting wires, and the energy extraction coil adopts flat copper wires, round copper wires, flat aluminum wires or round aluminum wires as the conducting wires.

The invention is further improved in that the energy extraction coils of the three single-phase energy extraction reactors can be wound on a core side yoke and are electrically connected together.

The invention has at least the following beneficial technical effects:

at present, the structure of three bodies of three-phase is adopted to current single-phase energy extraction reactor, and every looks oil tank all has the annex of self, like subassembly such as oil conservator, ladder, switch board, and these subassemblies all occupy certain space for product volume grow. When the reactor is arranged on site, a certain distance must be reserved between the reactor groups, the fireproof effect is achieved, the occupied area is large, and the requirements for projects with small occupied area of the reactor cannot be met. According to the three-phase energy extraction reactor structure provided by the invention, the three-phase energy extraction reactor bodies share one oil tank, the distance between phases is shorter, the structure is more compact, the component materials and the interphase steel plates are saved, the materials are saved, and the weight is lighter.

Drawings

Fig. 1 is a schematic structural diagram of an energy-pumping reactor with three single-phase energy-pumping reactor bodies transversely arranged in an oil tank, wherein the length direction of an iron yoke is parallel to the direction of the oil tank.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic structural diagram of an energy-pumping reactor with three single-phase energy-pumping reactor bodies vertically arranged in an oil tank, wherein the length direction of an iron yoke is vertical to the direction of the oil tank.

Fig. 4 is a schematic view of the direction a-a of fig. 3.

Fig. 5 is an electrical wiring schematic diagram of a three-phase energy-extracting reactor, wherein fig. 5(a) is a wiring diagram of a star connection of three-phase shunt reactors, and fig. 5(b) is a wiring diagram of an angle connection of three-phase energy-extracting reactors.

Fig. 6 is an electrical wiring schematic diagram of a three-phase energy-extracting reactor, wherein fig. 6(a) is a wiring diagram of a three-phase shunt reactor in star connection, and fig. 6(b) is a wiring diagram of a three-phase energy-extracting reactor in star connection.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 4, the three-phase energy-extracting reactor structure provided by the present invention includes an oil tank 6, and three single-phase energy-extracting reactors arranged in parallel in the oil tank 6, each single-phase energy-extracting reactor includes an iron core leg 4, a shunt reactor coil 1 wound outside the iron core leg 4, an iron core side yoke 3 disposed outside the shunt reactor coil 1, and energy-extracting coils 2 symmetrically wound around the iron core side yoke 3.

The three single-phase oil immersed air gap iron core type energy extraction reactors are arranged in an oil tank side by side, and the reactor bodies can be arranged in the oil tank transversely or vertically. The iron core is in an air gap iron core type structure with a single-core column and two side yokes, each phase is provided with two energy extraction coils which are electrically connected in series or in parallel, and the energy extraction coils of each phase are symmetrically sleeved on the two side yokes of the iron core.

As shown in fig. 5 and fig. 6, the connection mode of the invention is the connection mode of YNd5, and the three-phase ends of the shunt reactor can be connected together without the ground, namely, the connection mode of Y is the connection mode; the connection mode of the angle connection of the energy extraction coil comprises all angle connection modes specified by national standard GBT1094.1, and the connection mode of the three-phase energy extraction reactor comprises the following various modes: yd1, Yd5, Yd7, Yd11, YNd1, YNd5, YNd7, YNd11, etc.).

Energy reactor is taken out to three single-phase body of current structure, must leave certain fire prevention distance because of alternate, all need have self subassembly on every product moreover, if: the oil conservator, the control cabinet, the ladder and other parts are arranged on the product oil tank, so that the occupied area of the product is increased. Each phase reactor must be provided with at least one accessory device such as an oil conservator, a control cabinet, a ladder, an oil surface temperature controller, a coil thermometer, a pressure release valve, a gas relay and the like.

Compared with three single-phase body shunt reactors, the three-phase energy-pumping reactor has the advantages that only one accessory device needs to be equipped, in addition, the three-phase energy-pumping reactor reduces the use of oil tank steel plates, and the three-phase energy-pumping reactor has the advantages of low cost, small occupied area and light weight.

The key point of the invention is

(1) Three single-phase energy-pumping reactor bodies are arranged in an oil tank side by side and can be arranged horizontally or vertically;

(2) the energy extraction coil is symmetrically sleeved on the two side yokes of the iron core.

(3) The electrical connection mode of the coil of the energy-pumping reactor is as follows: the three-phase shunt reactor coils are connected in a star shape, and the three-phase energy extraction coils are connected in an angle joint or a star shape.

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.