CN207765309U - A kind of 10kV oil immersed types intelligent pressure regulating tune load transformer - Google Patents
A kind of 10kV oil immersed types intelligent pressure regulating tune load transformer Download PDFInfo
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- CN207765309U CN207765309U CN201820171812.6U CN201820171812U CN207765309U CN 207765309 U CN207765309 U CN 207765309U CN 201820171812 U CN201820171812 U CN 201820171812U CN 207765309 U CN207765309 U CN 207765309U
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Abstract
The utility model discloses a kind of 10kV oil immersed types intelligent pressure regulating tune load transformers,Including distribution transforming voltage regulating module,With modified tone loading module and distribution low-voltage side tune loading module,Distribution transforming voltage regulating module handoff procedure uses vacuum extinction,Vacuum interrupter contact,Any erosion is not generated to dielectric,Driving mechanism for switches uses light momentum flexible drive,Without impact structure,Mechanical wear is small,Life cycle is equal to transformer body,The three-phase current for adjusting load that can all change to size and frequency,Harmonic wave and the idle of variation compensate,The shortcomings that harmonics restraint and reactive-load compensation method that its application can overcome LC balancing devices etc. traditional,Solve the influence of power distribution network imbalance and nonlinear-load to the loss of electric design,Reach the economical operation of power grid,Realize energy-saving and emission-reduction,Cost efficiency,Improve power quality and the purpose of electric power netting safe running,Realize the long-life of 10kV load tap changing distribution transformers,Miniaturization,It is few to safeguard,It is intelligent.
Description
Technical field
The utility model is related to transformer technology field, specially a kind of 10kV oil immersed types intelligent pressure regulating tune load transformation
Device.
Background technology
It is also higher and higher with the continuous improvement and raising, requirement of the people to power supply quality of China's Living consumption.
10kV power distribution networks because power grid is complicated, circuit is long, load variations greatly caused by voltage fluctuation it is big, become to meet power supply quality requirement distribution
Depressor must realize on-load voltage regulation.But traditional load tap changing distribution transformer is confined to the technology limit of traditional on-load voltage regulating switch
System can not be popularized, meanwhile, seaonal load is apparent, and peak valley fluctuation is larger, and rate of qualified voltage is relatively low, and user's access is unreasonable, leads
Cause the operation of part distribution transforming secular disequilibrium, cause distribution loss to increase, contribute reduce, neutral conductor overload, to burn distribution transforming etc. bad
Consequence, the universal harmonic problem brought of Domestic electrical equipment.
Utility model content
It is above-mentioned to solve the purpose of this utility model is to provide a kind of 10kV oil immersed types intelligent pressure regulating tune load transformer
The problem of being proposed in background technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of 10kV oil immersed types intelligent pressure regulating tune is negative
Lotus transformer, including distribution transforming voltage regulating module, with modified tone loading module and distribution low-voltage side tune loading module；The distribution transforming pressure regulation mould
Block includes that multiple coils, multiple coils are completely the same, including high pressure lateral coil and low-voltage side coil, the high pressure lateral coil connection
A phase power supplys, the low-voltage side coil are connected in parallel first switch and the second switch, the first switch and the second switch point respectively
Not Lian Jie reactance auto-transformer, reactance auto-transformer connecting valve gear end.
Preferably, the distribution low-voltage side tune loading module includes the first electric network impedance, the second electric network impedance, third power grid
Impedance and the 4th electric network impedance, first electric network impedance, the second electric network impedance, third electric network impedance and the 4th electric network impedance are defeated
Enter end and connect alternating current source respectively, first electric network impedance, the second electric network impedance, third electric network impedance output end connect three-phase
Four line nonlinear loads, further include the reactance of A phases, the reactance of B phases and C phase reactance, and described A phases reactance one end connects the first electric network impedance
One end, described B phases reactance one end connect second electric network impedance one end, and described C phases reactance one end connects third electric network impedance one end,
The A phases reactance, the reactance of B phases and the C phase reactance other ends are all connected with main circuit；The voltage-type that the main circuit is made of IGBT
PWM converter and coupled inductance and DC bus capacitor composition；The main circuit connects the 4th electric network impedance.
Preferably, the A phases reactance, the reactance of B phases and the phase reactance one end C and three-phase and four-line nonlinear load, main circuit
It is separately connected instruction current counting circuit；Described instruction Current calculation circuit connects PWM tracing control driving circuits.
Preferably, the first switch and the second switch is all made of vacuum switch.
Compared with prior art, the utility model has the beneficial effects that：In the utility model, distribution transforming voltage regulating module switched
Cheng Caiyong vacuum extinctions, vacuum interrupter contact do not generate dielectric any erosion, and driving mechanism for switches is using light punching
Measure flexible drive, without impact structure, mechanical wear is small, and life cycle is equal to transformer body, adjusts load can be to size and frequency
The idle of three-phase current, harmonic wave and variation that rate all changes compensates, and application can overcome LC balancing devices etc. traditional
The shortcomings that harmonics restraint and reactive-load compensation method, solves the loss of power distribution network imbalance and nonlinear-load to electric design
Influence, reach the economical operation of power grid, realize energy-saving and emission-reduction, cost efficiency, improve power quality and electric power netting safe running
Purpose realizes the long-life of 10kV load tap changing distribution transformers, miniaturization, safeguards less, is intelligent.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model distribution transforming voltage regulating module schematic diagram；
Fig. 3 is the utility model with modified tone loading module schematic diagram；
Fig. 4 is the utility model distribution low-voltage side tune loading module schematic diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of 10kV oil immersed types intelligent pressure regulating tune load change
Depressor, including distribution transforming voltage regulating module 1, with modified tone loading module 2 and distribution low-voltage side tune loading module 3；The distribution transforming pressure regulation mould
Block 1 is completely the same including multiple coils, multiple coils, including high pressure lateral coil 4 and low-voltage side coil 5, the high pressure lateral coil 4
A phase power supplys are connected, the low-voltage side coil 5 is connected in parallel first switch 6 and second switch 7 respectively, and first switch 6 and second open
It closes 7 and is all made of vacuum switch；The first switch 6 and second switch 7 are separately connected reactance auto-transformer 8, the reactance
8 connecting valve gear end of formula auto-transformer.Distribution transforming voltage regulating module switching process uses vacuum extinction, vacuum interrupter
Contact does not generate dielectric any erosion.Driving mechanism for switches uses light momentum flexible drive, without impact structure, machinery
It wears small.Life cycle is equal to transformer body.The overall installation structure design of 10kV load tap changing distribution transformers is abundant
Using the space between distribution transformer iron core and transformer top mailbox lid, transformer appearance and size, 10kV are not changed substantially
The control of on-load voltage regulation tune load distribution transformer measures circuit and safeguards that the selection of protection is outdoor resistance to using stainless steel tube protection etc. less
Candidate selects and designs, rain-proof, sun-proof, anti-aging, Maintenance free in life cycle.
Control targe voluntarily can be flexibly arranged in distribution transforming on-load voltage regulation module, adjusted automatically using the output voltage of transformer as criterion
The position of whole on-load voltage regulating switch keeps transformer output constant within the scope of some, and controller can show power factor, active
Power, reactive power can realize data information sharing, the work under on-load voltage regulating switch rated step voltage by various communication modes
Make load test, applies in switching switch contact maximum rated by electric current and maximum rated step voltage, 300,000 taps of progress
Map function.
In the utility model, with modified tone loading module, has and administer active power balance, current in middle wire harmonic filtration work(
Can, dynamic Continuous Compensation reactive power function can be flexibly applied to power matching network system, according to power distribution station power load distributing feelings
Condition is mountable to transformer and goes out circuit or distribution line, intellectualized module, and equipment is exempted to debug；Internal module is using hot plugging
Mode can be charged on realization column and be safeguarded；Wired in parallel is run, simple realization equipment dilatation；Have more times of currents in middle wire and filters out energy
Power；Advanced anti-electromagnetic interference technology, it is ensured that equipment does not interfere equipment in net, has total power phase splitting compensation reactive power capability, mould
Block quality can control within 11kg, and noise is less than 50db, highly be less than 8.8cm.
In the utility model, distribution low-voltage side tune loading module 3 includes the first electric network impedance 9, the second electric network impedance 10, the
Three electric network impedances 11 and the 4th electric network impedance 12, first electric network impedance 9, the second electric network impedance 10, third electric network impedance 11
Alternating current source, first electric network impedance 9, the second electric network impedance 10, third are connect respectively with 12 input terminal of the 4th electric network impedance
11 output end of electric network impedance connects three-phase and four-line nonlinear load 13, further includes A phases reactance 14, B phases reactance 15 and C phase reactance
16, described 14 one end of A phases reactance connects 9 one end of the first electric network impedance, and described 15 one end of B phases reactance connects the second electric network impedance 10
One end, described 16 one end of C phases reactance connection third electric network impedance, 11 one end, the A phases reactance 14, B phases reactance 15 and C phase reactance
16 other ends are all connected with main circuit 17；The main circuit 17 is by IGBT voltage PWM converters constituted and coupled
Inductance and DC bus capacitor composition；The main circuit 17 connects the 4th electric network impedance 12；A phases reactance 14, B phases reactance 15 and C phases
16 one end of reactance and three-phase and four-line nonlinear load 13, main circuit 17 are separately connected instruction current counting circuit 18；The finger
Current calculation circuit 18 is enabled to connect PWM tracing controls driving circuit 19.The main task of wherein instruction current counting circuit be by
As requested detects zero sequence in load current, idle and negative sequence component.Current follow-up control circuit, PWM tracing controls drive
Dynamic circuit and main circuit, which are combined, is properly termed as compensation current occuring circuit, its main function is according to ordering calculation electricity
The compensating instruction that rood goes out generates actual compensation electric current.
In conclusion in the utility model, distribution transforming voltage regulating module handoff procedure uses vacuum extinction, vacuum interrupter to touch
Point, does not generate dielectric any erosion, and driving mechanism for switches uses light momentum flexible drive, without impact structure, machinery mill
Damage small, life cycle is equal to transformer body, adjusts load can be to three-phase current, harmonic wave and change that size and frequency all change
The shortcomings that the idle of change compensates, harmonics restraint and reactive-load compensation method that application can overcome LC balancing devices etc. traditional,
The influence of power distribution network imbalance and nonlinear-load to the loss of electric design is solved, the economical operation of power grid is reached, it is real
Existing energy-saving and emission-reduction, cost efficiency improve power quality and the purpose of electric power netting safe running, realize 10kV on-load voltage regulation distribution transformers
The long-life of device, miniaturization, few maintenance, intelligence.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of 10kV oil immersed types intelligent pressure regulating tune load transformer, it is characterised in that：Including distribution transforming voltage regulating module (1), distribution transforming
Adjust loading module (2) and distribution low-voltage side tune loading module (3)；The distribution transforming voltage regulating module (1) includes multiple coils, multiple lines
Completely the same, including high pressure lateral coil (4) and low-voltage side coil (5) are enclosed, the high pressure lateral coil (4) connects A phase power supplys, described
Low-voltage side coil (5) is connected in parallel first switch (6) and second switch (7), the first switch (6) and second switch respectively
(7) reactance auto-transformer (8), reactance auto-transformer (8) the connecting valve gear end are separately connected.
2. a kind of 10kV oil immersed types intelligent pressure regulating tune load transformer according to claim 1, it is characterised in that：It is described to match
Low pressure side tune loading module (3) include the first electric network impedance (9), the second electric network impedance (10), third electric network impedance (11) and
4th electric network impedance (12), first electric network impedance (9), the second electric network impedance (10), third electric network impedance (11) and the 4th
Electric network impedance (12) input terminal connects alternating current source, first electric network impedance (9), the second electric network impedance (10), third respectively
Electric network impedance (11) output end connects three-phase and four-line nonlinear load (13), further includes A phases reactance (14), B phases reactance (15) and C
Phase reactance (16), described A phases reactance (14) one end connect the first electric network impedance (9) one end, B phases reactance (15) one end connection
Second electric network impedance (10) one end, described C phases reactance (16) one end connect third electric network impedance (11) one end, the A phases reactance
(14), B phases reactance (15) and the reactance of C phases (16) other end are all connected with main circuit (17)；The main circuit (17) is made of IGBT
Voltage PWM converter and coupled inductance and DC bus capacitor composition；The 4th electricity of main circuit (17) connection
Net impedance (12).
3. a kind of 10kV oil immersed types intelligent pressure regulating tune load transformer according to claim 2, it is characterised in that：The A
Phase reactance (14), B phases reactance (15) and C phases reactance (16) one end and three-phase and four-line nonlinear load (13), main circuit (17)
It is separately connected instruction current counting circuit (18)；Described instruction Current calculation circuit (18) connects PWM tracing control driving circuits
(19)。
4. a kind of 10kV oil immersed types intelligent pressure regulating tune load transformer according to claim 1, it is characterised in that：Described
One switch (6) and second switch (7) are all made of vacuum switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171812.6U CN207765309U (en) | 2018-01-31 | 2018-01-31 | A kind of 10kV oil immersed types intelligent pressure regulating tune load transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820171812.6U CN207765309U (en) | 2018-01-31 | 2018-01-31 | A kind of 10kV oil immersed types intelligent pressure regulating tune load transformer |
Publications (1)
| Publication Number | Publication Date |
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| CN207765309U true CN207765309U (en) | 2018-08-24 |
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| CN201820171812.6U Active CN207765309U (en) | 2018-01-31 | 2018-01-31 | A kind of 10kV oil immersed types intelligent pressure regulating tune load transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363988A (en) * | 2021-06-08 | 2021-09-07 | 南方电网科学研究院有限责任公司 | Power grid operation optimization method, device and medium based on-load tap changer |
-
2018
- 2018-01-31 CN CN201820171812.6U patent/CN207765309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113363988A (en) * | 2021-06-08 | 2021-09-07 | 南方电网科学研究院有限责任公司 | Power grid operation optimization method, device and medium based on-load tap changer |
| CN113363988B (en) * | 2021-06-08 | 2022-12-06 | 南方电网科学研究院有限责任公司 | Power grid operation optimization method, device and medium based on-load tap changer |
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