CN203504103U

CN203504103U - Novel wind generating set bus duct

Info

Publication number: CN203504103U
Application number: CN201320565989.1U
Authority: CN
Inventors: 黄吉祥; 李明; 陆兴根; 李菊萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-11
Filing date: 2013-09-11
Publication date: 2014-03-26
Anticipated expiration: 2023-09-11

Abstract

The utility model discloses a novel wind generating set bus duct. The novel wind generating set bus duct comprises a bus duct body and adaptor boxes arranged on the two ends of the bus duct body, the bus duct body comprises a shell and three bus units, the shell is made of aluminium magnesium alloy, the three bus units are arranged in an inner cavity formed by the shell and are fixed in the shell through insulating supports, four pipe buses made of aluminium alloy are arranged in each bus unit, each pipe bus is sleeved with an insulating layer, the corresponding pipe buses of the bus units are connected with one another through flexible bus units in a cone mode and are fixed through flanges, joints are provided with temperature monitoring devices, and the bus duct body is arranged on the wall of a tower through an elastic support. The novel wind generating set bus duct is simple in structure, low in impedance, pressure drop, energy consumption and cost, and high in use reliability, solves the problems that traditional bus duct connection units cannot bear long-time shake of the tower, and are unreliable in electric conduction, and further overcomes the defects that a rectangular aluminium bus is large in pressure creep deformation, the surface is oxidized easily, the connection portions are in poor contact, and accidents are caused.

Description

A kind of novel wind generator group bus duct

Technical field

the utility model relates to the controller switching equipment of power domain, is specifically related to a kind of used for wind power generation bus duct system.

Background technology

the reserves of the fossil fuel such as coal, oil and natural gas are limited, it is exhausted that the energy that the mankind depend on for existence, develop is wanted one day, and environmental pollution and safety problem that ever-increasing energy resource consumption causes have become social main conspicuous contradiction.No matter from mankind's energy crisis in the future, or problem of environmental pollution at the moment, research and development wind generating technology all tool is of great significance.And the wind resource of containing on the earth is also very abundant, has wide DEVELOPMENT PROSPECT.

in tower of wind generating set cylinder, by head, to the connection of control system at the bottom of tower, adopt the earliest special cable, adopted afterwards the bus duct that current capacity is high, easy for installation, cost performance is high to replace, but traditional bus duct linkage unit is unable to undergo significantly swing vibration of tower cylinder, very easily breaks down.In addition, for weight reduction with reduce costs, in bus duct, conductor adopts rectangular aluminum row, because aluminium is arranged intrinsic defect, (surface is very easily oxidized, the deformation of creep is large, and electric conductivity decay is fast) cause connecting portion often to break down, do not reach the requirement of 30 years its useful life far away.In tower cylinder, space is little, and environment is severe, difficult in maintenance, and safety and reliability and the useful life of improving bus duct are most important.

Utility model content

the utility model object is: provide a kind of and can adapt to the phase rocking vibration of tower tube length, with low cost, Low ESR, low pressure drop, wind turbine generator bus duct low energy consumption and safety.

the technical solution of the utility model is:

a kind of novel wind generator group bus duct, comprise bus duct and the transfer box that is installed in bus duct two ends, described bus duct comprises shell and is placed in the some bus units in the inner chamber being formed by shell, bus unit is fixed in the enclosure by insulating support, the pipe bus that comprises some aluminium alloys in described bus unit, adopts soft bus unit that respective tube bus is connected between bus unit.

preferably, the quantity of described pipe bus is four.

preferably, described soft bus unit comprises the soft bus of being worked out by aluminium litzendraht wire and the link that is arranged at soft bus two ends, and described soft bus and link overcoat have insulating barrier.

further, institute's link adopts taper connection with pipe bus, and fastening by flange, and described flange welding is at pipe end of bus bars.

preferably, described pipe bus overcoat has insulating barrier.

preferably, the quantity of described bus unit is three, is respectively pylon, middle pylon and lower pylon bus unit.

preferably, the shell of described bus unit junction is provided with device for monitoring temperature.

preferably, described wind turbine generator bus duct is arranged on tower cylinder barrel by elastic support, is provided with caging bolt on elastic support, and revolve as in elastic support one end of caging bolt, and the other end limits the position of shell.

the utility model has the advantages that:

1. the utility model adopts aluminium-alloy pipe bus, and its integral rigidity connects, and swings in the same way with tower cylinder, has overcome the defect that traditional wind power bus duct connecting portion is unable to undergo significantly to swing, and can not affect conduction and connect.And, adopt aluminium-alloy pipe bus, than rectangular aluminium bus, skin effect coefficient is little, and AC resistance is little, and Electric Field Distribution is even, and current capacity improves, and after vertical installation, inner air tube flows, and heat radiation is better, has further improved current capacity, has reduced cost; And aluminium-alloy pipe bus is higher than rectangular aluminium bus intensity, shock resistance is strong, bears the ability of dynamic and thermal stability and the ability of anti overvoltage is all strong than rectangular bus bar.

. the utility model wind power bus duct aluminium-alloy pipe bus adopts insulating support to fix, and does not adopt bolted, therefore, can not be subject to pressing the impact of creep, and connecting portion can loose contact.

. between the aluminium-alloy pipe bus pipe in the utility model and soft bus unit, inner conical is connected, can ingress of air after sealing and be oxidized, and connecting portion can not generate heat because contact resistance increases.

. the utility model is simple in structure, Low ESR, low pressure drop, low energy consumption, low cost, and dependability is high, can automatically detect the operating temperature of bus duct by device for monitoring temperature, and overload alarm, guarantees the safety of electric power system.

Accompanying drawing explanation

below in conjunction with drawings and Examples, the utility model is further described:

fig. 1 is schematic diagram of the present utility model;

fig. 2 is that Fig. 1 is along the cutaway view of A-A direction;

fig. 3 is the schematic diagram of the insulating support in the utility model;

fig. 4 is soft bus unit and the schematic diagram of managing bus connected mode in the utility model;

fig. 5 is the schematic diagram that the utility model bus duct is connected with tower cylinder.

wherein: 1. transfer box, 2. pipe bus, 3. insulating barrier, 4. soft bus unit, 41. soft buses, 42. links, 5. insulating support, 6. flange, 7. device for monitoring temperature, 8. shell, 9. elastic support, 10. tower barrel, 11. caging bolts.

Embodiment

embodiment:

as shown in Figure 1, wind power generation bus duct comprises bus duct and the transfer box 1 that is arranged at the upper/lower terminal of bus duct, and it is connected with the outgoing cable of wind-powered electricity generation head and control cubicle respectively.Bus duct comprises the shell 8 of being made by almag and is placed in the upper, middle and lower pylon bus unit in shell 8, comprises the pipe bus 2 of four aluminium alloys in each bus unit; As shown in Figure 2, being placed in shell 8 of pipe bus 2 symmetries, is arranged with insulating barrier 3 outside pipe bus 2, and insulating barrier 3 is made by PET heat-shrinkable T bush; The interior insulating support 5 that is provided with uniformly of shell 8, pipe bus 2 is arranged in insulating support 5, Fig. 3 is the schematic diagram of insulating support 5, insulating support 5 is divided into two parts, being arranged in shell 8 of its symmetry, each part offers two semi-circular recesses, and pipe bus 2 is just nested in groove, and groove can be fixing by pipe bus 2.Pipe bus 2 between each bus unit connects by soft bus unit 4, soft bus unit 4 comprises soft bus 41 and is arranged at the link 42 at soft bus 41 two ends, link 42 and pipe bus 2 taper connections, connected mode as shown in Figure 4, the port of the junction of pipe bus 2 and link 42 is provided with corresponding oblique otch, and the port of pipe bus 2 and link 42 is welded with flange 6, by flange 6, be fixedly connected with, wherein soft bus 41 is worked out by aluminium litzendraht wire, and is arranged with outside insulating barrier 3.The junction of each bus unit is provided with device for monitoring temperature 7.Bus duct is installed on tower barrel 10 as shown in Figure 5, elastic support 9 is fixedly mounted on tower barrel 10, on elastic support 9, screw in caging bolt 11, the other end of caging bolt 11 offers bayonet socket, on housing 8, also offer corresponding bayonet socket, screw caging bolt 11 and can make housing 8 tightly touch elastic support 9, play fixation.

the utility model adopts the aluminium-alloy pipe bus 2 of segmented, between each section pipe bus 2, with soft bus unit, connects, and can swing in the same way with tower cylinder, has overcome the defect that traditional wind power bus duct connecting portion is unable to undergo significantly to swing, and can not affect conduction and connect.Of the present utility model simple in structure, install very conveniently, and device for monitoring temperature 7 is installed, temperature over-range alarm, uses safe and reliable.

those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a novel wind generator group bus duct, comprise bus duct and the transfer box that is installed in bus duct two ends, it is characterized in that: described bus duct comprises shell and is placed in the some bus units in the inner chamber being formed by shell, bus unit is fixed in the enclosure by insulating support, the pipe bus that comprises some aluminium alloys in described bus unit, adopts soft bus unit that respective tube bus is connected between bus unit.

2. novel wind generator group bus duct according to claim 1, is characterized in that: the quantity of described pipe bus is four.

3. novel wind generator group bus duct according to claim 1, is characterized in that: described soft bus unit comprises the soft bus of being worked out by aluminium litzendraht wire and the link that is arranged at soft bus two ends, and described soft bus and link overcoat have insulating barrier.

4. novel wind generator group bus duct according to claim 3, is characterized in that: institute's link adopts taper connection with pipe bus, and fastening by flange, and described flange welding is at pipe end of bus bars.

5. novel wind generator group bus duct according to claim 1, is characterized in that: described pipe bus overcoat has insulating barrier.

6. novel wind generator group bus duct according to claim 1, is characterized in that: the quantity of described bus unit is three, is respectively pylon, middle pylon and lower pylon bus unit.

7. novel wind generator group bus duct according to claim 1, is characterized in that: the shell of described bus unit junction is provided with device for monitoring temperature.

8. novel wind generator group bus duct according to claim 1, it is characterized in that: described wind turbine generator bus duct is arranged on tower cylinder barrel by elastic support, on elastic support, be provided with caging bolt, revolve as in elastic support one end of caging bolt, and the other end limits the position of shell.