CN208046429U - Power module, current transformer and wind power generating set - Google Patents
Power module, current transformer and wind power generating set Download PDFInfo
- Publication number
- CN208046429U CN208046429U CN201721893289.XU CN201721893289U CN208046429U CN 208046429 U CN208046429 U CN 208046429U CN 201721893289 U CN201721893289 U CN 201721893289U CN 208046429 U CN208046429 U CN 208046429U
- Authority
- CN
- China
- Prior art keywords
- power module
- fuse
- side power
- connector assembly
- fast connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Inverter Devices (AREA)
Abstract
Current transformer, wind power generating set the utility model is related to technical field of wind power generation more particularly to a kind of power module and using the power module.A kind of power module includes motor side power module, grid side power module, DC fuse, capacitance pool, and the fast connector assembly being electrically connected respectively with the motor side power module, the grid side power module；The fast connector assembly is electrically connected by the DC fuse with the capacitance pool.The power module in DC side by being arranged DC fuse, can be effectively prevented influences the normal work of other power modules because of a certain motor side power module or grid side power module induced detonation failure, ensure that other devices are against damages, is also reduced because of the spare part and maintenance cost needed for induced detonation while anti-induced detonation realizing.
Description
Technical field
The utility model is related to technical field of wind power generation more particularly to a kind of power module and using the power module
Current transformer, wind power generating set.
Background technology
Wind-driven generator is mostly in the more severe area of environment, wherein at the core system current transformer of electric-control system
In same environment, the core devices of current transformer are power module, and the quality of power module performance directly determines entire unsteady flow
The performance of device.Since power module is transmission and the conversion links of entire current transformer energy, power module crash rate is apparently higher than
Other electric elements.There are multiple power modules inside current transformer, when one of power fail, often causes other power
Module synchronization fails, and is easy to happen induced detonation phenomenon.The work that induced detonation does not only result in current transformer can not normally be carried out, while increase use
The spare part maintenance cost at family, therefore the induced detonation of power module is controlled, it is to ensure current transformer normal work and reduction spare part and maintenance
The important means of cost.
In the prior art, the anti-of equipment is usually realized by AC fuse quick fuse in the exchange side of current transformer
Shield, but its limitation is that AC fuse often can not in time, rapidly realize protection, and its volume and power are big, need to hold high
Expensive production cost and subsequent spare part, maintenance cost.
Utility model content
Current transformer, wind-force hair the purpose of the utility model is to provide a kind of power module and using the power module
Electrical component, to solve the problems, such as above-mentioned to cannot achieve equipment protection in the prior art and production cost, maintenance cost are high.
To achieve the above object, the utility model adopts the following technical solution：
A kind of power module, including motor side power module, grid side power module, DC fuse, capacitance pool, and
The fast connector assembly being electrically connected respectively with the motor side power module, the grid side power module；The fast connector assembly passes through
The DC fuse is electrically connected with the capacitance pool.
Preferably, the two poles of the earth for the fast connector assembly being electrically connected with the motor side power module output end pass through institute respectively
DC fuse is stated to be electrically connected with the two poles of the earth of the capacitance pool.
Preferably, the two poles of the earth for the fast connector assembly being electrically connected with the grid side power module input terminal pass through institute respectively
DC fuse is stated to be electrically connected with the two poles of the earth of the capacitance pool.
Preferably, the rated voltage U of the DC fuseIt is specifiedMeet following formula：
Wherein, the UExchangeAdditional ac voltage after fusing for the DC fuse, the UDirect current is unloadedIt is described straight
The ideal DC floating voltage value of flow fuse.
Preferably, the rated current I of the DC fuseIt is specifiedMeet following formula：
IIt is specified≥K1*K2*K3*K4；
Wherein, the K1Remaining coefficient, K are stayed for electric current2For ambient temperature system, K3For cooling condition coefficient, K4For practical stream
Cross the root-mean-square valve of DC fuse electric current.
Preferably, the motor side power module, the grid side power module and the capacitance pool include multiple electricity
Container, the capacitor are direct current support capacitor.
Preferably, the fast connector assembly is electrically connected by connecting busbar with the DC fuse.
Preferably, the fast connector assembly with inserting mode respectively with the motor side power module, the grid side power
Module is electrically connected.
In addition, the utility model also provides a kind of current transformer, the current transformer includes above-mentioned power module.
In addition, the utility model also provides a kind of wind power generating set, the wind power generating set includes above-mentioned current transformer.
Compared with prior art, the utility model has following advantage：
Power module provided by the utility model can be effectively prevented by the way that DC fuse is arranged in DC side because of certain
The normal work of other power modules is failed and is influenced in one motor side power module or grid side power module induced detonation, ensures other
Device is against damages, is also reduced because of the spare part and maintenance cost needed for induced detonation while anti-induced detonation realizing；In addition, this programme
Used DC fuse has smaller volume and power compared to AC fuse, further saves production cost with after
Continuous spare part, maintenance cost.
Correspondingly, the current transformer and wind power generating set provided by the utility model using the power module has good
Anti- induced detonation performance, can support in the continuous longtime running in ruthless area, functional reliability, stability are high, and produce, dimension
It protects at low cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of power module provided by the utility model；
Fig. 2 is the reality of one embodiment that DC fuse provided by the utility model is connect with capacitance pool, fast connector assembly
Object figure；
Fig. 3 is the fundamental diagram of current transformer provided by the utility model.
Reference sign：
10, DC fuse；20, motor side power module；30, grid side power module；40, capacitance pool；41, it connects
Piece；42, tie point between capacitance pool；50, fast connector assembly；51, busbar is connected；60, motor side filter；70, power grid side filter；
80, wind-driven generator；90, power grid；100, power module.
Specific implementation mode
The utility model is further described with exemplary embodiment below in conjunction with the accompanying drawings, it is wherein identical in attached drawing
Label all refers to identical component.In addition, if the detailed description of known technology is for showing the feature of the utility model
It is unnecessary, then omits it.
As shown in Figure 1, being power module 100 provided by the utility model, the power module 100 includes motor side power
Module 20, grid side power module 30, DC fuse 10, capacitance pool 40, and respectively with the motor side power module 20,
The fast connector assembly 50 that the grid side power module 30 is electrically connected；The fast connector assembly 50 passes through the DC fuse 10 and institute
State the electrical connection of capacitance pool 40.Wherein, the motor side power module 20 is rectified power module, and grid side power module 30 is inverse
Variable power module, the quantity of the motor side power module 20, grid side power module 30 in the power module 100 can be with
It is one or more, the quantity of the fast connector assembly 50 and the motor side power module 20 and the grid side power module 30
Total quantity it is corresponding.Since DC fuse 10 need to be connected to the two poles of the earth of the output end of the fast connector assembly 50, therefore institute
The quantity for stating DC fuse 10 is twice of 50 quantity of fast connector assembly.The quantity of the capacitance pool 40 can be one or
It is multiple, it is electrically connected between each adjacent capacitance pool 40.
Below in conjunction with Fig. 2 and Fig. 3, power module 100 provided by the utility model is elaborated.
Fig. 2 shows the one embodiment for being the DC fuse 10 and the capacitance pool 40, the fast connector assembly 50
Connection structure.
For the present embodiment, the power module 100 includes two capacitance pools 40 and four fast connector assemblies 50,
Correspondingly, the power module 100 further includes eight DC fuses 10.(Fig. 2 does not show with the motor side power module
Go out) output end electrical connection each fast connector assembly 50 the two poles of the earth respectively by described in two DC fuses 10 and one
The two poles of the earth of capacitance pool 40 are electrically connected, and what is be electrically connected with grid side power module (Fig. 2 is not shown) input terminal is each described fast slotting
The two poles of the earth of component 50 are also electrically connected by two DC fuses 10 with the two poles of the earth of capacitance pool described in another 40 respectively, tool
Body, each fast connector assembly 50 is with inserting mode and the corresponding motor side power module (Fig. 2 is not shown) or the electricity
Net side power module (Fig. 2 is not shown) is electrically connected；Each fast connector assembly 50 is by connecting busbar 51 and the DC fuse
10 one end electrical connection；The capacitor 40 is equipped with connection sheet 41, the other end of the DC fuse 10 and the capacitance
The connection sheet 41 of device 40 is electrically connected.Tie point 42 between capacitance pool, two capacitance pools are provided on the capacitance pool 40
40 realize electrical connection by tie point 42 between the capacitance pool.By connecting same capacitance pool or connection is adjacent is electrically connected to each other
Multiple capacitance pools are, it can be achieved that each motor side power module and each grid side power module are electrically connected to each other.The power module 100
In connection type between each device do not limited by the present embodiment, other companies such as screw thread, bayonet, crimping can also be used
Connect mode.In the present embodiment, motor side power module (Fig. 2 is not shown), the grid side power module (Fig. 2 is not shown) and
Include multiple capacitors in the capacitance pool 40, the capacitor is the DC support that can be played energy storage and stablize output action
Capacitor.Need it is clear that, the quantity of each device is not limited by the present embodiment in the power module 100, each number
Amount can be adjusted according to practical application request.
In addition, the present invention also provides the current transformers for using the power module 100 and wind-power electricity generation component.Such as Fig. 3
It is shown, it is the fundamental diagram of the current transformer provided by the utility model using the power module 100.The current transformer includes
The input terminal of two motor side power modules 20 and two grid side power modules 30, each motor side power module 20 is in parallel
Connection, the output end of each grid side power module 30 are connected in parallel.By connecting capacitance pool (Fig. 3 is not shown), each motor
The realization of the input terminal of the output end of side power module 20 and each grid side power module 30 is connected in parallel with each other.
When the current transformer normal operation, wind-driven generator 80 generates energy, wherein the wind-driven generator 80 is three-phase
Alternating current generator, generated energy flow through motor side filter 60 and are transferred to motor side power module 20.As rectification work(
Three-phase alternating current electric rectification is direct current, and being connected electrically by motor side by the motor side power module 20 of rate module
Fast connector assembly (Fig. 3 is not shown) energy transmission is come out, the DC fuse 10 that energy then passes through motor side is transferred to electricity
The energy of reservoir (Fig. 3 is not shown), capacitance pool output then flows through that the DC fuse 10 of grid side, (Fig. 3 does not show fast connector assembly
Go out) it is transferred to grid side power module 30, DC inversion is three-phase by the grid side power module 30 as adverse current power module
Alternating current simultaneously exports, and energy is then transferred to power grid 90 by power grid side filter 70, wherein the power grid side filter 70 is
LC filters.
When a certain motor side power module 20 or grid side power module 30 fail, the direct current of corresponding connection
The meeting quick fuse of fuse 10, to ensure that other devices are unaffected and work normally.Specifically, with the leftmost side in Fig. 3
For grid side power module 30 fails, when it breaks down, 10 quick fuse of fastp-acting fuse of corresponding connection, into
And the electrical connection of another grid side power module 30 in parallel with the grid side power module 30 is cut off；Simultaneously, with
The grid side power module 30 is also cut off in the electrical connection of the motor side power module 20 of DC side parallel.The direct current is molten
Disconnected device 10 can directly and quickly cut off energy when a certain motor side power module 20 or grid side power module 30 fail
Transmission path, and then other devices is protected to be not affected, it can normally work.
In addition, to prevent DC fuse from thering is the case where wrong report failure fuses in current transformer normal operation to occur, this
DC fuse 10 also needs to meet following requirements of type selecting used by utility model provides power module 100：
1, the rated voltage U of DC fuseIt is specifiedMeet following formula：
Wherein, the UExchangeAdditional ac voltage after fusing for the DC fuse, the UDirect current is unloadedIt is described straight
The ideal DC floating voltage value of flow fuse.
2, the rated current I of DC fuseIt is specifiedMeet following formula：
IIt is specified≥K1*K2*K3*K4；
Wherein, the K1Remaining coefficient, K are stayed for electric current2For ambient temperature system, K3For cooling condition coefficient, K4For practical stream
Cross the root-mean-square valve of DC fuse electric current.
3, DC fuse has enough breaking capacity, can be in 1.1 times of rated voltage UIt is specified, lower point of short circuit condition
Disconnected greatest expected fault current.
4, DC fuse has suitable fusing value I2T, fusing value I2The rated current I of t and DC fuseIt is specifiedIt is related
Connection, fusing value I2T is determined by the structure of DC fuse, material and cross section.
Power module provided by the utility model can be effectively prevented by the way that DC fuse is arranged in DC side because of certain
The normal work of other power modules is failed and is influenced in one motor side power module or grid side power module induced detonation, ensures other
Device is against damages, is also reduced because of the spare part and maintenance cost needed for induced detonation while anti-induced detonation realizing；In addition, this programme
Used DC fuse has smaller volume and power compared to AC fuse, further saves production cost with after
Continuous spare part, maintenance cost.
In addition, the current transformer and wind power generating set provided by the utility model using the power module is with good
Anti- induced detonation performance can support that functional reliability, stability are high in the continuous longtime running in ruthless area, and produce, safeguard
It is at low cost.
Although having been illustrated with some exemplary embodiments of the utility model above, those skilled in the art will
Understand, in the case where not departing from the principles of the present invention or spirit, these exemplary embodiments can be made a change, this
The range of utility model is limited by claim and its equivalent.
Claims (10)
1. a kind of power module, which is characterized in that including motor side power module (20), grid side power module (30), direct current
Fuse (10), capacitance pool (40), and respectively with the motor side power module (20), the grid side power module (30)
The fast connector assembly (50) of electrical connection；The fast connector assembly (50) passes through the DC fuse (10) and the capacitance pool (40) electricity
Connection.
2. power module according to claim 1, which is characterized in that with motor side power module (20) output end electricity
The two poles of the earth of the fast connector assembly (50) of connection pass through the two poles of the earth of the DC fuse (10) and the capacitance pool (40) respectively
Electrical connection.
3. power module according to claim 1, which is characterized in that with grid side power module (30) input terminal electricity
The two poles of the earth of the fast connector assembly (50) of connection pass through the two poles of the earth of the DC fuse (10) and the capacitance pool (40) respectively
Electrical connection.
4. power module according to claim 1, which is characterized in that the rated voltage U of the DC fuse (10)It is specified
Meet following formula：
Wherein, the UExchangeAdditional ac voltage after fusing for the DC fuse (10), the UDirect current is unloadedIt is described straight
The ideal DC floating voltage value of flow fuse (10).
5. power module according to claim 1, which is characterized in that the rated current I of the DC fuse (10)It is specified
Meet following formula：
IIt is specified≥K1*K2*K3*K4；
Wherein, the K1Remaining coefficient, K are stayed for electric current2For ambient temperature system, K3For cooling condition coefficient, K4It is straight actually to flow through
The root-mean-square valve of flow fuse (10) electric current.
6. power module according to claim 1, which is characterized in that the motor side power module (20), the power grid
Side power module (30) and the capacitance pool (40) include multiple capacitors, and the capacitor is direct current support capacitor.
7. power module according to claim 1, which is characterized in that the fast connector assembly (50) is by connecting busbar and institute
State DC fuse (10) electrical connection.
8. power module according to claim 1, which is characterized in that the fast connector assembly (50) with inserting mode respectively with
The motor side power module (20), the grid side power module (30) electrical connection.
9. a kind of current transformer, which is characterized in that including such as claim 1 to 8 any one of them power module.
10. a kind of wind power generating set, which is characterized in that including current transformer as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893289.XU CN208046429U (en) | 2017-12-28 | 2017-12-28 | Power module, current transformer and wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721893289.XU CN208046429U (en) | 2017-12-28 | 2017-12-28 | Power module, current transformer and wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208046429U true CN208046429U (en) | 2018-11-02 |
Family
ID=63956192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721893289.XU Active CN208046429U (en) | 2017-12-28 | 2017-12-28 | Power module, current transformer and wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208046429U (en) |
-
2017
- 2017-12-28 CN CN201721893289.XU patent/CN208046429U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208522665U (en) | Converter apparatus | |
| CN102640375B (en) | Inverter for high voltages | |
| EP3125392B1 (en) | Multi-port dc-dc converter and application therefor | |
| CN107086547B (en) | A kind of combined high-voltage dc circuit breaker and its self energizing method with self energizing ability | |
| CN104009452A (en) | Protection scheme for direct current distribution system short-circuit fault | |
| CN103825479A (en) | Power converter | |
| US9484826B2 (en) | Multiport DC-DC autotransformer and methods for controlling and using the same | |
| CN103632895A (en) | Direct-current circuit breaker | |
| CN102723704A (en) | Magnetic switch type short-circuit current fault detection method and device for same | |
| CN103680992B (en) | A kind of capacitor bank | |
| CN106532757A (en) | Bipolar flexible DC power transmission system, converter station thereof and control method of converter station | |
| CN104009463A (en) | Series type tidal current controller suitable for direct current power transmission | |
| CN109449997A (en) | A kind of modular high-power shore electric power system | |
| CN105680793A (en) | Voltage compensation device for photovoltaic system and photovoltaic system | |
| CN104158518A (en) | Self energy taking power supply device | |
| CN201048291Y (en) | Parallel high voltage dynamic reactive compensator | |
| CN208046429U (en) | Power module, current transformer and wind power generating set | |
| CN103384119A (en) | Alternating current side energy-taking device and method for static var generator unit module | |
| CN204578078U (en) | Coupling capacitance apparatus | |
| CN206211546U (en) | Bipolar flexible direct current transmission system and its current conversion station | |
| CN207426665U (en) | Current transformer and its secondary side protective arrangement for limiting output voltage | |
| CN107171270B (en) | Intensive deicing device constant current, constant pressure modularization dynamic passive compensation component | |
| CN106410837A (en) | Bipolar flexible direct-current power transmission system and converter station thereof | |
| CN201766506U (en) | Communication power supply with input overvoltage/undervoltage protection | |
| Shui et al. | Study on black-start scheme of MMC-HVDC system with a large scale wind farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |