CN206332455U - A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network - Google Patents
A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network Download PDFInfo
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- CN206332455U CN206332455U CN201621376239.XU CN201621376239U CN206332455U CN 206332455 U CN206332455 U CN 206332455U CN 201621376239 U CN201621376239 U CN 201621376239U CN 206332455 U CN206332455 U CN 206332455U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 16
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- 230000010354 integration Effects 0.000 claims 1
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- 238000004134 energy conservation Methods 0.000 description 1
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
Abstract
The utility model provides a kind of pole voltage power-less comprehensive compensating device towards urban power distribution network, and device is arranged on steel structure platform, and steel structure platform is provided with power distribution cabinet；Device includes system side CT, pole integral circuit breaker, arrester, connection transformer, power model and pole SVG controllers；It is coupled transformer, power model and pole SVG controllers to be arranged on inside power distribution cabinet, the system side CT is installed on transmission line of electricity, described pole integral circuit breaker one end connects transmission line of electricity, other end connection is coupled the high-pressure side of transformer, and the power model is connected with being coupled the low-pressure side of transformer；Arrester one end connection is coupled the high-pressure side of transformer, other end ground connection.The utility model is designed using Compact modular, and T, which connects, to be parallel on transmission line of electricity, reactive load on rear side of SVG circuits can be dynamically compensated in real time, and hold perceptual continuously adjustabe；Installed, saved the area using pole, reduce cost, it is adaptable to urban distribution network.
Description
Technical field
The utility model is related to reactive power compensator, and in particular to a kind of pole voltage power-less towards urban power distribution network
Comprehensive compensating device.
Background technology
Reliable, high-quality electric energy is provided for power consumer, power network energy-conservation, high efficiency of transmission are realized, with high economic benefit
And social benefit.With economic development, electrical equipment, which is constantly updated, to be changed, and nonlinear-load, distributed power source are largely accessed, matched somebody with somebody
The scale of power network expands day by day, and structure is also more complicated.Power distribution network particularly urban power distribution network is faced with high-low voltage while depositing
Phenomenon.Urban power distribution network largely uses cable laying, active very little during circuit underloading, the charging work(of idle predominantly cable
Rate, causes line end voltage to be higher than head end voltage, this phenomenon is referred to as the capacity effect of long transmission line, and with voltage class
Lifting and the increase of transmission distance, this elevated phenomenon of terminal voltage will be apparent from.Daytime, urban power distribution network load weight, had
Work(is larger, the idle main inductive based on motor, and terminal voltage is less than head end voltage when circuit is heavily loaded, while villages within the city
Transformation, distribution network planning build delayed, load and locally excessively collect medium factor aggravation power distribution network low-voltage phenomenon.
As the power distribution network that key effect of forming a connecting link is played in power network, new and old problem superposition is presented, the quality of power supply with
It is mainly shown as in terms of power supply reliability：The normalization of low-voltage problem, which is rolled, to be occurred；High-low voltage exists simultaneously；Saving energy and decreasing loss
Not significantly, utilization rate of equipment and installations is low, and cost performance is not high；Reactive-load compensation and voltage-regulation functional form are single.
It is high-power that the general principle of static reacance generator (Static Var Generator, SVG) is that utilization can be turned off
Power electronic devices (such as IGBT) is constituted from commutation bridge circuit, is connected in parallel on by reactor on power network, is suitably adjusted bridge-type
The amplitude and phase of circuit AC side output voltage, or directly control its ac-side current, so that it may so that the circuit absorb or
Person sends the reactive current for meeting and requiring, realizes the purpose of dynamic passive compensation.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of pole towards urban power distribution network
Voltage power-less comprehensive compensating device, the amplitude and phase of inverter side output voltage can be adjusted by closed loop, can inhale device
Receive or send the reactive current for meeting and requiring, regulating system side power factor, because of cable charge effects during compensated line underloading
End low-voltage when end high voltage and the circuit heavy duty of initiation caused by idle deficiency, realizes dynamic voltage reactive compensation
Purpose.
To achieve these goals, the utility model takes following scheme：
The utility model provides a kind of pole voltage power-less comprehensive compensating device towards urban power distribution network, described device
On steel structure platform, the steel structure platform is provided with power distribution cabinet；Described device includes system side CT, pole one
Change breaker, arrester, be coupled transformer, power model and pole SVG controllers；
The connection transformer, power model and pole SVG controllers are arranged on inside power distribution cabinet, the system side CT
It is installed on transmission line of electricity, described pole integral circuit breaker one end connects transmission line of electricity, other end connection is coupled transformer
High-pressure side, the power model and be coupled transformer low-pressure side connect；Arrester one end connection is coupled transformer
High-pressure side, other end ground connection.
The system side CT is connected by secondary cable with the current signal acquisition interface of pole SVG controllers.
The power model is connected by optical fiber with pole SVG controllers, and by copper bus-bar with being coupled transformer
Low-pressure side is connected.
The low-pressure side for being coupled transformer passes through secondary cable and the voltage signal acquisition interface of pole SVG controllers
Connection.
The pole integral circuit breaker includes isolation switch and breaker；The first end connection of the isolation switch is defeated
Electric line, the second end connects the first end of breaker, and the second end connection of the breaker is coupled the high-pressure side of transformer.
The no-load voltage ratio for being coupled transformer is 10KV：690V.
The arrester is using outdoor anti-fouling type arrester.
The steel structure platform is installed on horizontal plane by non-prestressed concrete wire pole.
Compared with immediate prior art, the technical scheme that the utility model is provided has the advantages that：
1) the pole voltage power-less comprehensive compensating device towards urban power distribution network that the utility model is provided can pass through
Closed loop adjusts the amplitude and phase of inverter side output voltage, and device can be made to absorb or send the reactive current for meeting and requiring,
Regulating system side power factor, when during compensated line underloading because of the end high voltage and heavily loaded circuit of cable charge effects initiation
End low-voltage caused by idle deficiency, realizes the purpose of dynamic voltage reactive compensation；
2) it is coupled transformer and uses 10KV:690V no-load voltage ratio, improves inverter side voltage, is absorbing or is sending equal work(
During rate, output current is only conventional SVG half, reduces the impact in itself to transmission line of electricity and SVG, effectively is lifted
Operating efficiency, extends the equipment operation time limit；
3) the pole voltage power-less comprehensive compensating device towards urban power distribution network that the utility model is provided is using compact
Type modularized design, T, which connects, to be parallel on transmission line of electricity, reactive load on rear side of SVG circuits can be dynamically compensated in real time, and hold perception even
It is continuous adjustable；
4) the pole voltage power-less comprehensive compensating device towards urban power distribution network that the utility model is provided is using on post
Formula is installed, and is saved the area, is reduced cost, it is adaptable to urban distribution network；
5) short construction period, civil engineering one week, the access that has a power failure only is needed 2 hours；
6) substantially, conventional line is expected cost recovery in 2 years to energy-saving effect.
Brief description of the drawings
Fig. 1 is the pole voltage power-less comprehensive compensating device structure towards urban power distribution network that the utility model is provided
Figure；
Fig. 2 is that the pole voltage power-less comprehensive compensating device installation towards urban power distribution network that the utility model is provided is shown
It is intended to；
In figure, 1- system sides CT, 2- arrester, 3- pole integral circuit breakers, 4- power distribution cabinets, 5- poles SVG controls
Device processed, 6- power models, 7- is coupled transformer.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The pole voltage power-less comprehensive compensating device towards urban power distribution network that the utility model is provided is used to compensate city
City's load such as idle breach such as charging electric vehicle facility, illumination, household electricity, it is ensured that 10kV power networks High Power Factor is run,
And maintenance voltage is stable.Because infield is urban power distribution network, this patent is installed using the overall cabinet of pole, and increases noise reduction
Treatment measures, the city appearance of the city and people's life are not influenceed.
The utility model provide a kind of pole voltage power-less comprehensive compensating device towards urban power distribution network, such as Fig. 1 and
Shown in Fig. 2, described device is arranged on steel structure platform, and the steel structure platform is provided with power distribution cabinet 4；Described device includes
System side CT 1, pole integral circuit breaker 3, arrester 2, connection transformer 7, power model 6 and pole SVG controllers 5；
The connection transformer 7, power model 6 and pole SVG controllers 5 are arranged on inside power distribution cabinet 4, the system
Side CT 1 is installed on transmission line of electricity, and described one end of pole integral circuit breaker 3 connects transmission line of electricity, and other end connection is coupled
The high-pressure side of transformer 7, the power model 6 is connected with being coupled the low-pressure side of transformer 7；The one end of arrester 2 connection connection
Tie the high-pressure side of transformer 7, other end ground connection.
The system side CT 1 is connected by secondary cable with the current signal acquisition interface of pole SVG controllers 5.System
System side CT 1 is controlled using that need not disconnect the clip CT of the original circuit of power distribution network, its secondary singal input pole SVG when installing
Device 5 is gathered for it.
The power model 6 is connected by optical fiber with pole SVG controllers 5, and by copper bus-bar with being coupled transformer 7
Low-pressure side connection.
The low-pressure side for being coupled transformer 7 is connect by the voltage signal acquisition of secondary cable and pole SVG controllers
Mouth connection.
The pole integral circuit breaker 3 includes isolation switch and breaker；The first end connection of the isolation switch
Transmission line of electricity, the second end connects the first end of breaker, and the second end connection of the breaker is coupled the high-pressure side of transformer 7.
It is coupled transformer 7 and uses three winding pattern, save circuit PT, reduces equipment volume.It is coupled the no-load voltage ratio of transformer 7 to use
10KV:690V, while increasing by one group of 10KV：100V secondary windings supply controller collection voltages signal, and secondary winding accuracy is
0.2S。
The steel structure platform is installed on horizontal plane by non-prestressed concrete wire pole.
Arrester 2 is using outdoor anti-fouling type arrester, and protection equipment is from the system failure voltage shadow such as thunderbolt, overvoltage
Ring.
Power model 6 is to use the voltage source converter (VSC) of back-to-back topological structure for core, and direct current capacitors is storage
Can element, DC voltage is converted into alternating voltage with power network same frequency using turn-off device, and by being coupled transformation
The access power network in parallel of device 7.
The high-voltage side faults such as generation transformer, quick-break or overcurrent protection are completed by pole integral circuit breaker 3.
Pole SVG controllers 5 are used for realizing the functions such as data acquisition, control protection and man-machine interaction, including：
1) possess acquisition control protection and man-machine interface shows required analog quantity and switching value function；
2) dynamic voltage reactive compensation function is completed；
3) when system transient modelling, it is ensured that pole SVG not off-grids；When control system occurs abnormal, it is ensured that pole SVG
Do not occur misoperation；After device is because of a variety of causes off-grid, if pole SVG detections failure can reset, it can put into again,
Should possess and put into function again automatically；Transformer excess temperature tripping operation node signal is gathered, during transformer excess temperature, SVG module bodies are exited；
4) distant place communication function is completed, receives remote dispatching and monitoring；
5) bluetooth connection is completed, receives mobile phone A PP operational orders.
The pole voltage power-less comprehensive compensating device towards urban power distribution network that the utility model is provided has following three kinds
Mode of operation is set by controller man-machine interface：
1) constant power factor control model；
2) constant voltage control model；
3) voltage and reactive power integrative control pattern.
The operation of SVG controllers uses two ways：
1) controller liquid crystal touch screen is operated；
2) mobile phone A PP bluetooths join operation.
Whole device uses pole mounting means, saves the area, reduces cost, it is adaptable to urban distribution network.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System, those of ordinary skill in the art can still be carried out with reference to above-described embodiment to embodiment of the present utility model
Modification or equivalent, these any modifications or equivalent without departing from the utility model spirit and scope, in Shen
Within claims of the present utility model that please be pending.
Claims (8)
1. a kind of pole voltage power-less comprehensive compensating device towards urban power distribution network, it is characterised in that described device is installed
On steel structure platform, the steel structure platform is provided with power distribution cabinet；Described device includes system side CT, pole integration and broken
Road device, arrester, connection transformer, power model and pole SVG controllers；
The connection transformer, power model and pole SVG controllers are arranged on inside power distribution cabinet, and the system side CT is installed
In on transmission line of electricity, described pole integral circuit breaker one end connects transmission line of electricity, and other end connection is coupled the height of transformer
Side is pressed, the power model is connected with being coupled the low-pressure side of transformer；Arrester one end connection is coupled the high pressure of transformer
Side, other end ground connection.
2. the pole voltage power-less comprehensive compensating device according to claim 1 towards urban power distribution network, its feature exists
In the system side CT is connected by secondary cable with the current signal acquisition interface of pole SVG controllers.
3. the pole voltage power-less comprehensive compensating device according to claim 1 towards urban power distribution network, its feature exists
In the power model is connected by optical fiber with pole SVG controllers, and passes through copper bus-bar and the low-pressure side for being coupled transformer
Connection.
4. the pole voltage power-less comprehensive compensating device towards urban power distribution network according to claim 1 or 3, its feature
It is that the low-pressure side for being coupled transformer is connected by the voltage signal acquisition interface of secondary cable and pole SVG controllers
Connect.
5. the pole voltage power-less comprehensive compensating device according to claim 1 towards urban power distribution network, its feature exists
In the pole integral circuit breaker includes isolation switch and breaker；The first end connection power transmission line of the isolation switch
Road, the second end connects the first end of breaker, and the second end connection of the breaker is coupled the high-pressure side of transformer.
6. the pole voltage power-less comprehensive compensating device according to claim 4 towards urban power distribution network, its feature exists
In the no-load voltage ratio for being coupled transformer is 10KV：690V.
7. the pole voltage power-less comprehensive compensating device according to claim 1 towards urban power distribution network, its feature exists
In the arrester is using outdoor anti-fouling type arrester.
8. the pole voltage power-less comprehensive compensating device according to claim 1 towards urban power distribution network, its feature exists
In the steel structure platform is installed on horizontal plane by non-prestressed concrete wire pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376239.XU CN206332455U (en) | 2016-12-15 | 2016-12-15 | A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621376239.XU CN206332455U (en) | 2016-12-15 | 2016-12-15 | A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network |
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| CN206332455U true CN206332455U (en) | 2017-07-14 |
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| CN201621376239.XU Expired - Fee Related CN206332455U (en) | 2016-12-15 | 2016-12-15 | A kind of pole voltage power-less comprehensive compensating device towards urban power distribution network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600312A (en) * | 2020-05-09 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Power supply station area terminal low-voltage distributed treatment method based on reactive compensation |
-
2016
- 2016-12-15 CN CN201621376239.XU patent/CN206332455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600312A (en) * | 2020-05-09 | 2020-08-28 | 青岛鼎信通讯股份有限公司 | Power supply station area terminal low-voltage distributed treatment method based on reactive compensation |
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Granted publication date: 20170714 |