CN109088411A - A kind of terminal voltage fining regulator - Google Patents
A kind of terminal voltage fining regulator Download PDFInfo
- Publication number
- CN109088411A CN109088411A CN201810990441.9A CN201810990441A CN109088411A CN 109088411 A CN109088411 A CN 109088411A CN 201810990441 A CN201810990441 A CN 201810990441A CN 109088411 A CN109088411 A CN 109088411A
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- China
- Prior art keywords
- switch
- compensation module
- voltage
- regulator
- main control
- 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.)
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- 239000003990 capacitor Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 abstract description 12
- 230000006837 decompression Effects 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
-
- 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
-
- 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
-
- 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
- Y02E40/30—Reactive power compensation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of terminal voltages to refine regulator, including main control module, voltage compensation module and reactive compensation module, main control module is connect with voltage compensation module and reactive compensation module respectively, boosting and decompression mode are switched over by lifting switching switch KMA2, realize that fining multi gear position transformer boosting shelves and decompression shelves fining multi gear position are adjusted, voltage regulating effect is good, transformer is at low cost, it needs voltage compensation module can be opened from system break automatically when pressure regulation, without excess loss, it is low in energy consumption, master control scheduling and switching high reliablity, and it can directly efficiently solve the problem that end low pressure is too low in rural power grids, ensure resident's normal power supply, it solves at present using the voltage regulating mode for changing main transformer of transformer substation load tap changer, it cannot be guaranteed that the problem of voltage of all routes gets a promotion.
Description
Technical field
The present invention relates to low-voltage network technical fields more particularly to a kind of terminal voltage to refine regulator.
Background technique
Low-voltage circuit end caused by the factors such as existing rural power grids weak foundation, radius of electricity supply is big, route is long, seasonal electricity consumption
Low voltage, so that client quality of voltage is poor, line loss increases, it is necessary to take measures to promote quality of voltage.
Currently, common there are two ways to adjusting voltage: one is changing the pressure regulation of main transformer of transformer substation load tap changer,
But the foundation adjusted can only be on the basis of substation bus bar, it cannot be guaranteed that the voltage of all routes gets a promotion, Er Qiepin
Numerous adjustment main transformer tap influences the safe operation of main transformer bigger；Another method is switched capacitor, by reducing line
Pressure drop caused by the reactive current of road achievees the purpose that pressure regulation, and the method applicable surface is limited, range of regulation is small, to because of power supply line
Voltage caused by too long is low to be difficult to achieve the desired results, and installation and adjustment are inconvenient.
To sum up, to solve the problems, such as rural LV long distance power delivery low-voltage, terminal voltage lifting device is needed, is promoted
Line voltage distribution, improve power quality, can with effective guarantee power supply quality, improve rate of qualified voltage, and it is at low cost, loss it is small,
It is high reliablity, applied widely.
Summary of the invention
Present invention solves the technical problem that: a kind of terminal voltage fining regulator is provided, is used at present to solve
Change the voltage regulating mode of main transformer of transformer substation load tap changer, it cannot be guaranteed that asking of getting a promotion of the voltage of all routes
Topic, meanwhile, solve using switched capacitor voltage regulating mode applicable surface it is limited, range of regulation is small, makes to because power supply line is too long
At the undesirable problem of voltage low adjustment effect.
Technical solution of the present invention:
A kind of terminal voltage fining regulator, including main control module, voltage compensation module and reactive compensation module, it is described
Main control module is connect with voltage compensation module and reactive compensation module respectively.
The reactive compensation module includes secondary current mutual inductor, collector and intelligent capacitor, the intelligent capacitor
It is connect respectively with secondary current mutual inductor and collector.
The voltage compensation module includes fining multi gear position transformer, manual bypass switch K2, compensating switch K1, rises
Drop switching switch KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10, the fining multi gear position
Transformer switches switch KMA2, auto by pass switch KMA1 and eight with manual bypass switch K2, compensating switch K1, lifting respectively
A tap changer KMA3 ~ KMA10 connection.
The main control module further comprises several switch input interfaces and switch output interface, and the switch input connects
Mouth is opened with compensating switch K1, manual bypass switch K2, lifting switching switch KMA2, the auto by pass in voltage compensation module respectively
Close KMA1 and eight tap changer KMA3 ~ KMA10 auxiliary contact be connected, the switch output interface respectively with voltage
Lifting switching switch KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10 connections in compensating module.
The main control module is connect by 485 communication wires with reactive compensation module.
It further includes single-phase lightning arrestor FV, and the single-phase lightning arrestor FV is mounted between input terminal and voltage compensation module
Route on.
Beneficial effects of the present invention:
A kind of terminal voltage fining regulator is provided, boosting and decompression mode are cut by lifting switching switch KMA2
It changes, realizes that fining multi gear position transformer boosting shelves and decompression shelves fining multi gear position are adjusted, voltage regulating effect is good, transformer
It is at low cost, need voltage compensation module can be opened from system break automatically when pressure regulation, no excess loss is low in energy consumption, master control scheduling with
Switching high reliablity, and the problem that end low pressure is too low in rural power grids can be directly efficiently solved, ensureing resident just
Often power supply solves at present using the voltage regulating mode for changing main transformer of transformer substation load tap changer, it cannot be guaranteed that all routes
Voltage the problem of getting a promotion, meanwhile, also solve that voltage regulating mode applicable surface using switched capacitor is limited, pressure regulation model
Enclose it is small, to because power supply line it is too long caused by the undesirable problem of voltage low adjustment effect, there is good practicability.
Detailed description of the invention
Fig. 1 is structure of the invention block diagram；
Fig. 2 is present invention electrical connection schematic diagram；
Fig. 3 is the connection figure of master control module switch output interface and voltage compensation module.
Specific embodiment
A kind of terminal voltage fining regulator, including main control module, voltage compensation module and reactive compensation module, institute
The main control module stated is connect with voltage compensation module and reactive compensation module respectively, and the main control module is connected by 485 communications
Wiring is connect with reactive compensation module.
The reactive compensation module includes secondary current mutual inductor, collector and intelligent capacitor, the intelligent capacitor
It is connect respectively with secondary current mutual inductor and collector, the secondary current mutual inductor is connect with intelligent capacitor, in conjunction with intelligence
The sampling functions of capacitor itself can carry out the acquisition of voltage and current signals on route；Intelligent capacitor and collector pass through 485
Communication wire is attached, and the intelligent capacitor is electric by voltage and current signals, idle amount, capacitor investment state, intelligence
Hold operating status and alarm status is sent to collector, the collector can show corresponding state, while can will believe
Breath sends main control module to.
It further includes single-phase lightning arrestor FV, and the single-phase lightning arrestor FV is mounted between input terminal and voltage compensation module
Any one phase line on；Entire terminal voltage fining regulator is protected.
The voltage compensation module includes fining multi gear position transformer, manual bypass switch K2, compensating switch K1, rises
Drop switching switch KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10, the fining multi gear position
Transformer switches switch KMA2, auto by pass switch KMA1 and eight with manual bypass switch K2, compensating switch K1, lifting respectively
A tap changer KMA3 ~ KMA10 connection.
Auto by pass switch KMA1 is the contactor of normally opened normally closed (1NO/1NC) type, can control it by main control module
Bypass is automatically switched to, without voltage compensation, normally-closed contact connects the both ends of transformer output, not can be carried out voltage benefit at this time
It repays, normally opened contact is connected to the output end of compensating switch K1, and KMA1 is in default conditions, no pressure regulation effect；When KMA1 movement,
In voltage compensation line attachment, pressure regulation can be carried out according to gear.
As shown in Fig. 2, the lifting switching switch KMA2 is the contactor of two normally opened two normally closed (2NO/2NC) types, it can
Realize boosting and decompression mode switching, " 2 " and " 4 " interface of contactor is all connected to the output end of KMA1 can after KMA1 movement
It is connected into main line Ai-Ao；R2 and Interface R4 are all connected to main line N；" 1 " and R1 interface are all connected to the output of KMA3 ~ KMA10
End；" 3 " and Interface R3 are all connected to the output common end of fining multi gear position transformer.
For the lifting switching switch KMA2 in default conditions, KMA3 ~ KMA10 output end is connected to main line Ai-Ao, and
Common end is connected to main line N；In KMA2 movement, KMA3 ~ KMA10 output end is connected to main line N, and common end is connected to
Main line Ai-Ao, thus can be double by the gear for refining multi gear position transformer, and 2.5% ~ 20% is adjusted, and every 2.5% is one grade, point
For boosting and decompression mode, totally 16 gears are exported, and transformer cost is reduced under identical function.
Fining multi gear position transformer, can carry out the adjusting of 8 gear voltages, and the input terminal of first winding is connected to compensation
The output end of switch K1, manual bypass switch K2 is in parallel with first winding, common to access in main line A.Voltage gear includes rising
Pressure and decompression mode, totally 16 grades, specific as follows:
(1) for the lifting switching switch KMA2 described in default conditions, voltage compensation module is in boost mode, the pressure regulation
Switch KMA3, KMA4, KMA5, KMA6, KMA7, KMA8, KMA9, KMA10 are respectively closed, then voltage promote 2.5% respectively, 5%,
7.5%, 10%, 12.5%, 15%, 17.5,20%, totally 8 grades；When appearing in multiple switch closure simultaneously, to boost, high gear is
Standard, for example, when KMA3 and KMA4 are closed at, then voltage increase 5%.
(2) when lifting switching switch KMA2 movement, voltage compensation module is in decompression mode, the tap changer
KMA3, KMA4, KMA5, KMA6, KMA7, KMA8, KMA9, KMA10 are respectively closed, then voltage decline 2.5% respectively, 5%, 7.5%,
10%, 12.5%, 15%, 17.5,20%, totally 8 grades；When appearing in multiple switch closure simultaneously, it is subject to and declines high gear, example
Such as, when KMA3 and KMA4 are closed at, then voltage decline 5%.
The main control module further comprises several switch input interfaces and switch output interface, and the switch input connects
Mouth is opened with compensating switch K1, manual bypass switch K2, lifting switching switch KMA2, the auto by pass in voltage compensation module respectively
The auxiliary contact for closing KMA1 and eight tap changer KMA3 ~ KMA10 are connected, and connection type is generally one-to-one connection,
I.e. each corresponding input interface of auxiliary contact, convenient for monitoring the state of each switch, to control more promptly and accurately.It is a pair of
Although one connection type can be monitored each switch state, many switch input quantity resources also consumed, so
It can voluntarily select according to the actual situation, provide the connection type of three input of one kind, i.e., by auxiliary contact one end of KMA2 ~ KMA10
It is uniformly connected to the input interface S0 of main control module, the other end of KM2 is connected to the input interface S2 of main control module, by KMA3
The other end of ~ KMA10 is connected to the input interface S1 of main control module, this connection type can be confirmed and currently open with the presence or absence of pressure regulation
It closes conjunction and device is currently at boosting shelves and is still depressured shelves.
It is switched as shown in figure 3, the switch output interface L1 ~ L10 switches with the lifting in voltage compensation module respectively
Backward dioded DA1 ~ DA10 is distinguished in KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10 connections
It is parallel to the both ends tap changer KMA1 ~ KMA10.
The manual bypass switch K2 is connected between the main contact of fining multi gear position transformer, and is connected to main line
In the Ai-Ao of road, it is used cooperatively with the compensating switch K1, it can be achieved that voltage compensation and reactive compensation put into or cut off simultaneously system
System, or reactive compensation is individually put into, include the following three types combination:
(1) pressure regulation and reactive compensation, K2 are disconnected, K1 closure；
(2) pure reactive compensation, K2 closure；
(3) without any compensation, K2 is disconnected, and K1 is disconnected.
Claims (6)
1. a kind of terminal voltage refines regulator, it is characterised in that: including main control module, voltage compensation module and idle benefit
Module is repaid, the main control module is connect with voltage compensation module and reactive compensation module respectively.
2. a kind of terminal voltage according to claim 1 refines regulator, it is characterised in that: the reactive compensation
Module includes secondary current mutual inductor, collector and intelligent capacitor, the intelligent capacitor respectively with secondary current mutual inductor and
Collector connection.
3. a kind of terminal voltage according to claim 1 refines regulator, it is characterised in that: the voltage compensation
Module includes fining multi gear position transformer, manual bypass switch K2, compensating switch K1, goes up and down switching switch KMA2, is automatic other
Way switch KMA1 and eight tap changer KMA3 ~ KMA10, the fining multi gear position transformer are opened with manual bypass respectively
K2, compensating switch K1, lifting switching switch KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10 are closed to connect
It connects.
4. a kind of terminal voltage according to claim 1 refines regulator, it is characterised in that: the main control module
Several switch input interfaces and switch output interface are further comprised, the switch input interface is respectively and in voltage compensation module
Compensating switch K1, manual bypass switch K2, lifting switching switch KMA2, auto by pass switch KMA1 and eight tap changers
The auxiliary contact of KMA3 ~ KMA10 are connected, and the switch output interface is opened with the lifting switching in voltage compensation module respectively
Close KMA2, auto by pass switch KMA1 and eight tap changer KMA3 ~ KMA10 connections.
5. a kind of terminal voltage according to claim 1 refines regulator, it is characterised in that: the main control module
It is connect by 485 communication wires with reactive compensation module.
6. a kind of terminal voltage according to claim 1 refines regulator, it is characterised in that: it further includes single-phase keeps away
Thunder device FV, the single-phase lightning arrestor FV are mounted on the route between input terminal and voltage compensation module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990441.9A CN109088411A (en) | 2018-08-28 | 2018-08-28 | A kind of terminal voltage fining regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990441.9A CN109088411A (en) | 2018-08-28 | 2018-08-28 | A kind of terminal voltage fining regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109088411A true CN109088411A (en) | 2018-12-25 |
Family
ID=64794947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810990441.9A Pending CN109088411A (en) | 2018-08-28 | 2018-08-28 | A kind of terminal voltage fining regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109088411A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126436U (en) * | 1991-10-28 | 1992-12-30 | 马屹 | Automatically voltage regulating device for loading joystick transformer |
| US20080203979A1 (en) * | 2005-09-26 | 2008-08-28 | Ruitian Su | Customer Intelligent Reactive Power Automatic Compensation Energy-Saved Device |
| CN104157128A (en) * | 2014-08-22 | 2014-11-19 | 国家电网公司 | Wireless remote controlling device suitable for on-load voltage regulating switch of main transformer |
| CN104868475A (en) * | 2015-05-21 | 2015-08-26 | 广州开能电气实业有限公司 | Electricity quality comprehensive control apparatus for low-voltage distribution network |
| CN205004752U (en) * | 2015-10-10 | 2016-01-27 | 长沙三友仪器设备有限公司 | Terminal automatic voltage regulation of distribution lines and reactive power compensator |
| CN106026682A (en) * | 2016-06-01 | 2016-10-12 | 国家电网公司 | Controllable switching multi-gear output intelligent transformer apparatus |
| CN106159958A (en) * | 2016-03-18 | 2016-11-23 | 武汉武新电气科技股份有限公司 | The comprehensive lifting device of rural power grids low-voltage and method on a kind of post |
| CN207234409U (en) * | 2017-10-12 | 2018-04-13 | 山东民生电气设备有限公司 | A kind of low-voltage circuit voltage power-less integrates lifting device |
| CN209233471U (en) * | 2018-08-28 | 2019-08-09 | 贵州电网有限责任公司 | A kind of voltage regulator |
-
2018
- 2018-08-28 CN CN201810990441.9A patent/CN109088411A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2126436U (en) * | 1991-10-28 | 1992-12-30 | 马屹 | Automatically voltage regulating device for loading joystick transformer |
| US20080203979A1 (en) * | 2005-09-26 | 2008-08-28 | Ruitian Su | Customer Intelligent Reactive Power Automatic Compensation Energy-Saved Device |
| CN104157128A (en) * | 2014-08-22 | 2014-11-19 | 国家电网公司 | Wireless remote controlling device suitable for on-load voltage regulating switch of main transformer |
| CN104868475A (en) * | 2015-05-21 | 2015-08-26 | 广州开能电气实业有限公司 | Electricity quality comprehensive control apparatus for low-voltage distribution network |
| CN205004752U (en) * | 2015-10-10 | 2016-01-27 | 长沙三友仪器设备有限公司 | Terminal automatic voltage regulation of distribution lines and reactive power compensator |
| CN106159958A (en) * | 2016-03-18 | 2016-11-23 | 武汉武新电气科技股份有限公司 | The comprehensive lifting device of rural power grids low-voltage and method on a kind of post |
| CN106026682A (en) * | 2016-06-01 | 2016-10-12 | 国家电网公司 | Controllable switching multi-gear output intelligent transformer apparatus |
| CN207234409U (en) * | 2017-10-12 | 2018-04-13 | 山东民生电气设备有限公司 | A kind of low-voltage circuit voltage power-less integrates lifting device |
| CN209233471U (en) * | 2018-08-28 | 2019-08-09 | 贵州电网有限责任公司 | A kind of voltage regulator |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
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| RJ01 | Rejection of invention patent application after publication |