CN201656496U

CN201656496U - Double-thyristor module structure for wind power generation soft connection grid voltage regulation circuit

Info

Publication number: CN201656496U
Application number: CN200920265908XU
Authority: CN
Inventors: 冯广志
Original assignee: Guangzhou Kinte Industrial Co Ltd
Current assignee: Guangzhou Kinte Industrial Co Ltd
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2010-11-24
Anticipated expiration: 2019-12-29

Abstract

The utility model discloses a double-thyristor module structure for a wind power generation soft connection grid voltage regulation circuit, which comprises a pair of thyristors which are reversely connected in parallel, and further comprises three conductive bars which are connected with a far end main loop, wherein one of the conductive bars is closely pressed and connected between the thyristors, another two conductive bars are respectively closely pressed and connected with the other end of the thyristor, thereby forming a thyristor main body, and the polarities of the thyristors are corresponding when pressing and connecting. The two conductive bars and the thyristors are closely pressed and connected, simultaneously play the roles of electrical connection and heat dissipation and cooling, therefore, the volume of the double-thyristor module structure is small, the weight is light, the cost is low, the double-thyristor module structure is suitable for intermittent work, is suitable for a three-phase three-wire alternating current voltage regulation circuit whose work time is much less than interval time, is particularly suitable for the three-phase three-wire alternating current voltage regulation circuit which is applied in a wind power generation soft connecting grid.

Description

The twin crystal brake tube modular structure that is used for the soft regulating circuit that is incorporated into the power networks of wind power generation

Technical field

The utility model relates to the soft electric electronic current change technology field of being incorporated into the power networks of wind power generation, particularly a kind of twin crystal brake tube modular structure that is used for the soft regulating circuit that is incorporated into the power networks of wind power generation.

Background technology

At present, thyristor module has been widely used in field of power electronics, and has been divided into all polytypics according to the difference of specific performance, and a lot of phase three-wire three AC voltage adjusting circuit just are based on twin crystal brake tube modular design and manufacturing.Because thyristor is the power type semiconductor element, inevitably can produce thermal losses at work.If the heat that produces can not in time shed, the junction temperature of brilliant lock body will constantly raise, and causes the rated performance and the reliability decrease of thyristor, when serious even burn thyristor.So the phase three-wire three AC voltage adjusting circuit based on thyristor often is furnished with extra heat abstractor.Traditional radiating mode is air-cooled, and the heat abstractor of employing is the fin that volume is several times as much as thyristor, and volume is bigger.If adopt the mode of water-cooled to dispel the heat, though effect is better, owing to need extra auxiliary equipment, cost is higher, is difficult to apply.

The utility model content

The purpose of this utility model is to provide a kind of volume little, in light weight, with low cost, does not need heat dissipation equipment additionally is installed, and can be used for the twin crystal brake tube modular structure of phase three-wire three AC voltage adjusting circuit.

The purpose of this utility model is achieved through the following technical solutions: the twin crystal brake tube modular structure that is used for the soft regulating circuit that is incorporated into the power networks of wind power generation, the thyristor that comprises a pair of reverse parallel connection, it is characterized in that also comprising that three are used for the busbar that is connected with the far-end major loop, wherein a busbar closely is crimped between the thyristor, two other busbar respectively with the tight crimping of the other end of thyristor, constitute the thyristor main body, the polarity of described thyristor is corresponding during crimping.

The utility model can also be done following improvement: described twin crystal brake tube modular structure also comprises pressing plate and mounting panel, the two ends of described thyristor main body press respectively on the wherein one side of mounting panel, described pressing plate lays respectively on the another side of mounting panel, by link its periphery is connected and fixed between the described pressing plate and makes thyristor and the tight crimping of busbar.

The utility model can also be done following improvement: described twin crystal brake tube modular structure also comprises two insulating covers, and described insulating cover is located at respectively between two busbars and the pressing plate.

The utility model can also be done following improvement: described twin crystal brake tube modular structure also comprises two briquettings and steel ball, described briquetting is embedded in the described insulating cover, with thyristor mutually crimping busbar also with described briquetting crimping, described steel ball is between two briquettings.

Busbar described in the utility model all adopts copper product.

Mounting panel described in the utility model can be made by cold-rolled steel sheet.

Link between the pressing plate described in the utility model adopts bolt, and described bolt is inserted into the installing hole that is arranged on the pressing plate.

As a kind of execution mode of the present utility model, described pressing plate is made by steel spring plate.

The utility model has the advantages that: in design of the present utility model, two busbars are crimped on closely with thyristor, have obtained compression to greatest extent on the space, have dwindled the volume and weight of whole thyristor module and interlock circuit.Two busbars play the effect that is electrically connected simultaneously, need be connected with external circuit, therefore has certain length, adopt electric conductivity and the good metal material of heat-conductive characteristic, copper for example, just the heat absorption that can when reducing busbar heating itself thyristor be produced conducts, and plays the effect of radiating and cooling.Owing to saved extra heat dissipation equipment, also reduced the cost of thyristor module.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model other direction;

Fig. 3 is applied to the user mode schematic diagram of the soft grid-connecting apparatus of wind generator system for the utility model.

Embodiment

As depicted in figs. 1 and 2, a kind of soft twin crystal brake tube modular structure that is incorporated into the power networks of wind power generation that is used for of the utility model, the thyristor 7 that comprises a pair of reverse parallel connection, 8, comprise that also three are used for the busbar 11 that is connected with the far-end major loop, 3, busbar 11 closely is crimped on thyristor 7, between 8, two busbars 3 respectively with thyristor 7, the tight crimping of 8 the other end, constitute the thyristor main body, thyristor 7 during crimping, 8 polarity is corresponding, in the present embodiment, busbar 11 is crimped between the negative electrode of the anode of thyristor 7 and thyristor 8, and two busbars 3 are crimped on the negative electrode of thyristor 7 and the anode of thyristor 8 respectively; Also comprise pressing plate 9,12 and

mounting panel

1,5, the two ends of thyristor main body press respectively on the wherein one side of

mounting panel

1,5, pressing plate 9,12 lays respectively on the another side of

mounting panel

1,5, by link its periphery is connected and fixed between the pressing plate 9,12, realizes the tight crimping of thyristor and busbar; Also comprise two

insulating covers

2,13, briquetting 4,14 and steel ball 6,

insulating cover

2,13 lay respectively between two busbars 3 and the pressing plate 9,12, and briquetting 4 is embedded in the insulating cover 13, with thyristor 7 mutually crimping busbar 3 also with briquetting 14 crimping, steel ball 6 is between briquetting 4 and briquetting 14.In the present embodiment, busbar 11,3 all adopts copper product, and

mounting panel

1,5 is made by cold-rolled steel sheet, and pressing plate 9,12 is made by steel spring plate.

Link between the pressing plate 9,12 adopts four bolts 10, pressing plate 9 and 12 respectively has four installing holes that are positioned at its edge, bolt 10 is inserted in the installing hole, produce tightening force when tightening, each parts is compressed, and above-mentioned steel ball 6 can make the plane of tightening force stepless action in each parts, guarantees stressed even.

As shown in Figure 3, three the utility model are assembled on the side plate 20 of regulator cubicle, and be equipped with corresponding resistance-capacitance protection device, just formed a cover phase three-wire three AC voltage adjusting circuit, be followed successively by A, B, C three-phase from top to bottom, the phase three-wire three AC voltage adjusting circuit occupation space of having used this utility model is minimum; And remaining annex also seldom, and weight is lighter, and cost is also lower, can be installed in easily on the side plate of regulator cubicle.

The utility model is particularly useful for discontinuous operation, and the operating time far is shorter than in the phase three-wire three AC voltage adjusting circuit of blanking time, on the soft electric device that is incorporated into the power networks of wind generator system.Each operating time of the soft grid-connecting apparatus of wind generator system normally was controlled within ten seconds, the time interval of two tasks is but more than two minutes, the heat that produces is relatively limited, it is sufficient relatively to be used for time of radiating and cooling, and the busbar in the utility model design is enough to distribute at the timely heat that thyristor is produced in the inside blanking time, compare with the traditional finned or the radiating mode of water cooling equipment, the volume compact, in light weight, cost is low, has both satisfied the requirement of radiating and cooling, reached again and reduced volume, weight reduction, the purpose that reduces cost is fit to be widely used in the circuit of this class.

Above embodiment is for the usefulness of understanding the utility model, be not to be to restriction of the present utility model, the those of ordinary skill in relevant field, on the basis of the described technical scheme of claim, can also make multiple variation or modification, for example the material of busbar described in the utility model also can aluminium; Pressing plate also can be reached the material of intensity and toughness by other, and every variation or distortion of making on the described technical scheme of claim basis all should be considered as still within the utility model scope of patent protection.

Claims

1. twin crystal brake tube modular structure that is used for the soft regulating circuit that is incorporated into the power networks of wind power generation, the thyristor (7,8) that comprises a pair of reverse parallel connection, it is characterized in that: comprise that also three are used for the busbar (11,3) that is connected with the far-end major loop, wherein a busbar (11) closely is crimped between the thyristor (7,8), two other busbar (3) respectively with the tight crimping of the other end of thyristor (7,8), constitute the thyristor main body, the polarity of described thyristor during crimping (7,8) is corresponding.

2. twin crystal brake tube modular structure according to claim 1, it is characterized in that: described twin crystal brake tube modular structure also comprises pressing plate (9,12) and mounting panel (1,5), the two ends of described thyristor main body press respectively on the wherein one side of mounting panel (1,5), described pressing plate (9,12) lays respectively on the another side of mounting panel (1,5), by link its periphery is connected and fixed between the described pressing plate (9,12) and makes described thyristor and the tight crimping of busbar.

3. twin crystal brake tube modular structure according to claim 2 is characterized in that: described twin crystal brake tube modular structure also comprises two insulating covers (2,13), and described insulating cover (2,13) is located at respectively between two busbars (3) and the pressing plate (9,12).

4. twin crystal brake tube modular structure according to claim 3, it is characterized in that: described twin crystal brake tube modular structure also comprises briquetting (4,14) and steel ball (6), described briquetting (4) is embedded in the described insulating cover (13), with thyristor (7) mutually the busbar of crimping (3) also with described briquetting (14) crimping, described steel ball (6) is positioned between briquetting (4) and the briquetting (14).

5. according to the arbitrary described twin crystal brake tube modular structure of claim 1～4, it is characterized in that: described busbar (11,3) all adopts copper product.

6. twin crystal brake tube modular structure according to claim 2 is characterized in that: described mounting panel (1,5) is made by cold-rolled steel sheet.

7. twin crystal brake tube modular structure according to claim 2 is characterized in that: the link between the described pressing plate (9,12) adopts bolt (10), and described bolt (10) is inserted into the installing hole that is arranged on the pressing plate (9,12).

8. twin crystal brake tube modular structure according to claim 2 is characterized in that: described pressing plate (9,12) is made by steel spring plate.