CN107910868A - Outdoor series voltage quality regulating device - Google Patents
Outdoor series voltage quality regulating device Download PDFInfo
- Publication number
- CN107910868A CN107910868A CN201711302200.2A CN201711302200A CN107910868A CN 107910868 A CN107910868 A CN 107910868A CN 201711302200 A CN201711302200 A CN 201711302200A CN 107910868 A CN107910868 A CN 107910868A
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- Prior art keywords
- voltage
- regulating device
- bypass
- series
- voltage quality
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 19
- 238000004146 energy storage Methods 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to voltage regulating device field, specially outdoor series voltage quality regulating device, mainly include functional unit and by-pass unit, functional unit includes PWM rectifier, PWM inverter, coupling transformer etc., according to power grade and field application needs, configuration transformer and energy-storage units are can choose whether（Storage battery/super capacitor）, between grids voltage quality regulation series connection accesses power grid and protected load, the voltage in load is compensated, is controlled；This voltage quality regulator output voltage stabilization, output voltage precision≤± 3%；With bypass functionality, equipment can realize bypass, bypass branch capacity >=2 times rated capacity automatically under following working status；Maintainability, during bypass power supply, main road can carry out maintenance operation without influencing bypass, and attended operation can quickly be carried out by opening cabinet door, can be with quick-replaceable to the function module of failure.
Description
Technical field
The present invention relates to voltage regulating device field, is specially outdoor series voltage quality regulating device.
Background technology
For isolated power network supply voltage or load caused by voltage UP fluctuation ranges it is larger when（0.7UN≤UP≤
1.2UN）, wave distortion is serious, frequency of supply continually changing feature within the specific limits；To solve the problems, such as brownout,
Power supply bureau can generally take following measures：1st, the three-phase voltage data returned according to collection, adjusts threephase load, keeps three as far as possible
Phase voltage is consistent；2nd, transformer tapping is adjusted, improves Circuit Fault on Secondary Transformer output voltage.
By this voltage regulating mode, when load electricity consumption peak value, supply voltage and load voltage are in the range of national regulation
（Between 196VAC~235VAC）；But in load electricity consumption valley, and when part taiwan area new-energy grid-connected is run, electricity can be caused
Reduce off-flavor is often higher.Excessive voltage can cause loss to increase, and can also reduce distribution system service life.
The content of the invention
The object of the present invention is to provide outdoor series voltage quality regulating device, mainly includes functional unit and bypass is single
Member, functional unit include PWM rectifier, PWM inverter, coupling transformer etc., can according to power grade and field application needs
To choose whether configuration transformer and energy-storage units（Storage battery/super capacitor）, grids voltage quality regulation series connection access power grid
And by between protection load, the voltage in load is compensated, is controlled.
To achieve these goals, the present invention uses following technical scheme
Outdoor series voltage quality regulating device, it includes, distribution transformer 1, rectification input filter 2, rectifier 3, inversion
Output filter 4, by-pass unit 5, input breaker 6.
The open air series voltage quality regulating device is arranged in series between three-phase input unit 10 and threephase load 11,
It is sequentially connected in series between the distribution transformer 1, rectification input filter 2, rectifier 3, inversion output filter 4, by-pass unit 5
Connection, the distribution transformer 1 is connected in series with by-pass unit 5, between the distribution transformer 1 and rectification input filter 2
Circuit on be provided with input breaker 6.
Preferably, it is provided with autotransformer 7 on the circuit between the rectification input filter 2 and input breaker 6.
Preferably, the rectifier 3 is connected with inversion energy-storage units 8.
Preferably, the inversion energy-storage units 8 are storage battery or super capacitor.
Preferably, it is provided with step-up transformer 9 between the distribution transformer 1 and by-pass unit 5.
Outdoor series voltage quality regulating device includes functional unit and by-pass unit, and functional unit includes distribution transformer again
Device, rectification input filter, rectifier, inversion output filter, functional unit（Host）：Host is unsatisfactory in network voltage will
High-low voltage is carried out to network voltage when asking, the compensation of harmonic voltage is administered；By-pass unit：Network voltage is normal, host is different
By-pass unit is switched to when often, the presence of by-pass unit is not primarily to successive load has a power failure when ensuring hostdown, i.e., in fact
The purpose not powered off in any case now.
Beneficial effects of the present invention：This voltage quality regulator output voltage stabilization, output voltage precision≤± 3%；Have
Bypass functionality, equipment can realize bypass, bypass branch capacity >=2 times rated capacity automatically under following working status；It can safeguard
Property, during bypass power supply, main road can carry out maintenance operation without influencing bypass, and maintenance behaviour can quickly be carried out by opening cabinet door
Make, can be with quick-replaceable to the function module of failure, maintenance process can be singly used general utility tool and remove or replace in 10min
Module.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, embodiment will be described below required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the circuit structure block diagram of the present invention；
Fig. 2 is the circuit structure block diagram of one embodiment of the present of invention；
Fig. 3 is the block diagram of system of the present invention；
Fig. 4 is test experiments circuit structure diagram of the present invention；
Fig. 5 is test experiments input voltage waveform figure of the present invention；
Fig. 6 is test experiments output voltage waveform of the present invention；
Fig. 7 is test experiments input current waveform figure of the present invention；
Fig. 8 is test experiments output current wave figure of the present invention.
In figure, 1- distribution transformers, 2- rectifications input filter, 3- rectifiers, 4- inversions output filter, 5- bypasses are single
Member, 6- inputs breaker, 7- autotransformers, 8- inversions energy-storage units, 9- step-up transformers, 10- three-phase inputs unit, 11-
Threephase load.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1 and Figure 2, outdoor series voltage quality regulating device includes, distribution transformer 1, rectification input filter
2nd, rectifier 3, inversion output filter 4, by-pass unit 5, input breaker 6；The open air series voltage quality regulating device
It is arranged in series between three-phase input unit 10 and threephase load 11, the distribution transformer 1, rectification input filter 2, rectification
It is sequentially connected in series between device 3, inversion output filter 4, by-pass unit 5, the distribution transformer 1 is connected with by-pass unit 5
Connect, input breaker 6 is provided with the circuit between the distribution transformer 1 and rectification input filter 2.
As one embodiment, it is provided with the circuit between the rectification input filter 2 and input breaker 6 automatic
Transformer 7.
As one embodiment, the rectifier 3 is connected with inversion energy-storage units 8, and the inversion energy-storage units 8 are electric power storage
Pond.
As one embodiment, the rectifier 3 is connected with inversion energy-storage units 8, and the inversion energy-storage units 8 are super
Capacitance.
As one embodiment, step-up transformer 9 is provided between the distribution transformer 1 and by-pass unit 5.
As one embodiment, as shown in figure 3, on circuit between the rectification input filter 2 and input breaker 6
Autotransformer 7 is provided with, the rectifier 3 is arranged in series inversion energy-storage units 8, the distribution transformer 1 and by-pass unit 5
Between be provided with step-up transformer 9.
Performance indicator of the present invention
Voltage stabilizing function：
Input voltage range：130V~280V, series voltage quality regulator output voltage stabilization, output voltage precision≤±
3%；
Bypass functionality：
Equipment can realize bypass, bypass branch capacity >=2 times rated capacity automatically under following working status： 1）Overload is automatic
Bypass；
2）Module failure auto by pass；
3）When input voltage is in the range of 200V~235, the operation of equipment auto by pass；
4）Artificial bypass manually（Remotely or locally set）；
It is maintainable
During bypass power supply, main road can carry out maintenance operation without influencing bypass；If main road is also equipped with fan-out capability, possess defeated
The function module of output capacity can work normally, and meet successive load electricity consumption, while main road failure function module can be tieed up
Shield, scene can replace failure function module, need to ensure oncontacting risk in maintenance process；
Attended operation can quickly be carried out by opening cabinet door, can one with quick-replaceable, maintenance process to the function module of failure
Module is removed or replaced in 10min using general utility tool.
Using effect and analysis
Company passes through special power quality analyzer（Model HIOKI 3197；Voltage range is AC600V；Current range is maximum
For 5KA；Basic accuracy voltage：±0.3%rdg±0.2%fs；Current precision：± 0.3%rdg. ± 0.2%f.s.+ jaw types sense
Device precision）Regulation effect after recording equipment installation.Testing time：21 days 14 July in 2017：00-21:00, totally 7 hours.
Test circuit structure, as shown in Figure 4, installs outdoor series voltage matter between the busbar of 10KV and threephase load
Quantity regulating device, and it is detected analysis using power quality analyzer.
Fig. 5 is input voltage waveform figure, as shown in figure 5, live input voltage is generally higher, generally in more than 220V, most
High voltage is close to 250V.
Fig. 6 is output voltage waveform, as shown in fig. 6, the voltage after compensation is basically stable at 220V, wherein because power grid
Electric current is excessive（200A）, more than equipment rated capacity, cause equipment fault to be shut down, therefore compensating waveform has the protrusion of discontinuity.
Fig. 7 is input current waveform figure, and Fig. 8 is output current wave figure, and as shown in Figure 7,8, scene is negative there is impact
Carry, maximum current is more than 200A.Normal condition electric current is generally in below 100A.
Test result analysis
By test data it can be seen that：
From the point of view of current data, which has impact load, and the startup that impact loads in peak of power consumption can cause wink
Between high current, the duration is very short.The electric current of maximum continuous service is in 60A or so under normal circumstances.
From the point of view of voltage data, than more serious, the period voltage for almost having 70% exceedes the high-tension situation of the taiwan area
235V, voltage can exceed 250V during highest；Voltage fluctuation is more serious, and voltage dip also occurs once in a while；In this case, a side
Face voltage continues height and causes equipment and line loss to increase, and the fluctuation and cataclysm of another aspect voltage also reduce user power utilization can
By property.After the outdoor series AC quality of voltage controlling device of input, stabilization that output voltage can continue has in 220V-235V
Effect improves voltage and continues high and fluctuation situation, and quality of voltage is significantly improved.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to the embodiment or example particular features, structures, materials, or characteristics described
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can close in any one or more embodiments or example
Suitable mode combines.
Finally it should be noted that present invention disclosed above preferred embodiment, which is only intended to help, illustrates the present invention.It is excellent
Select embodiment not have all details of detailed descriptionthe, do not limit the invention to the specific embodiments described.Obviously, root
According to the content of this specification, can make many modifications and variations.This specification is chosen and specifically describes these embodiments, be in order to
The principle of the present invention and practical application are preferably explained, so that skilled artisan can be best understood by and utilize
The present invention.The invention is limited only by the claims and the full scope thereof and equivalents thereof.
Claims (5)
1. outdoor series voltage quality regulating device, it is characterised in that it includes, distribution transformer (1), rectification input filter
(2), rectifier (3), inversion output filter (4), by-pass unit (5), input breaker (6)；Wherein, the outdoor series electrical
Pressure quality regulator is arranged in series between three-phase input unit (10) and threephase load (11), the distribution transformer (1),
Rectification input filter (2), rectifier (3), inversion output filter (4), by-pass unit are sequentially connected in series between (5), institute
State distribution transformer (1) to be connected in series with by-pass unit (5), between the distribution transformer (1) and rectification input filter (2)
Circuit on be provided with input breaker (6).
2. open air series voltage quality regulating device according to claim 1, it is characterised in that the rectification input filter
Autotransformer (7) is provided with circuit between device (2) and input breaker (6).
3. open air series voltage quality regulating device according to claim 1, it is characterised in that the rectifier (3) with
Inversion energy-storage units (8) connect.
4. open air series voltage quality regulating device according to claim 3, it is characterised in that the inversion energy-storage units
(8) it is storage battery or super capacitor.
5. open air series voltage quality regulating device according to claim 1, it is characterised in that the distribution transformer
(1) step-up transformer (9) is provided between by-pass unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302200.2A CN107910868A (en) | 2017-12-10 | 2017-12-10 | Outdoor series voltage quality regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302200.2A CN107910868A (en) | 2017-12-10 | 2017-12-10 | Outdoor series voltage quality regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107910868A true CN107910868A (en) | 2018-04-13 |
Family
ID=61854034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302200.2A Pending CN107910868A (en) | 2017-12-10 | 2017-12-10 | Outdoor series voltage quality regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530858A (en) * | 2022-02-28 | 2022-05-24 | 华能伊敏煤电有限责任公司 | Rapid pressure regulating system for overhead line of coal mine excavation site |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345419A (en) * | 2008-05-14 | 2009-01-14 | 西安交通大学 | Series voltage quality regulator and fast investment and cutting method |
| CN102244466A (en) * | 2011-07-14 | 2011-11-16 | 思源清能电气电子有限公司 | Voltage sag generator |
| CN102769389A (en) * | 2012-07-24 | 2012-11-07 | 西安交通大学 | Transformer-free series voltage quality regulator based on parasitic booster circuit and control method of regulator |
| CN103545839A (en) * | 2013-09-30 | 2014-01-29 | 国家电网公司 | Low voltage adjusting and controlling device for wind turbine |
| CN203942283U (en) * | 2014-06-13 | 2014-11-12 | 华南理工大学 | A kind of three-phase steady state voltage quality control apparatus |
| CN104538974A (en) * | 2014-12-17 | 2015-04-22 | 刘文华 | Three-phase three-wire series connection type dynamic voltage compensator |
| CN107181414A (en) * | 2017-06-09 | 2017-09-19 | 斯贝兰德工程技术（北京）有限公司 | A kind of comprehensive power quality high-frequency rectification inverse control system |
-
2017
- 2017-12-10 CN CN201711302200.2A patent/CN107910868A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345419A (en) * | 2008-05-14 | 2009-01-14 | 西安交通大学 | Series voltage quality regulator and fast investment and cutting method |
| CN102244466A (en) * | 2011-07-14 | 2011-11-16 | 思源清能电气电子有限公司 | Voltage sag generator |
| CN102769389A (en) * | 2012-07-24 | 2012-11-07 | 西安交通大学 | Transformer-free series voltage quality regulator based on parasitic booster circuit and control method of regulator |
| CN103545839A (en) * | 2013-09-30 | 2014-01-29 | 国家电网公司 | Low voltage adjusting and controlling device for wind turbine |
| CN203942283U (en) * | 2014-06-13 | 2014-11-12 | 华南理工大学 | A kind of three-phase steady state voltage quality control apparatus |
| CN104538974A (en) * | 2014-12-17 | 2015-04-22 | 刘文华 | Three-phase three-wire series connection type dynamic voltage compensator |
| CN107181414A (en) * | 2017-06-09 | 2017-09-19 | 斯贝兰德工程技术（北京）有限公司 | A kind of comprehensive power quality high-frequency rectification inverse control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530858A (en) * | 2022-02-28 | 2022-05-24 | 华能伊敏煤电有限责任公司 | Rapid pressure regulating system for overhead line of coal mine excavation site |
| CN114530858B (en) * | 2022-02-28 | 2023-12-12 | 华能伊敏煤电有限责任公司 | Quick pressure regulating system of coal mine excavation site overhead line |
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Application publication date: 20180413 |
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