CN209217729U - A kind of three-phase load unbalance regulating system - Google Patents
A kind of three-phase load unbalance regulating system Download PDFInfo
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- CN209217729U CN209217729U CN201821870253.4U CN201821870253U CN209217729U CN 209217729 U CN209217729 U CN 209217729U CN 201821870253 U CN201821870253 U CN 201821870253U CN 209217729 U CN209217729 U CN 209217729U
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of three-phase load unbalance regulating system, which includes the testing agency that Three-Phase Transformer exit is arranged in, the three-phase load dynamic equilibrium adjustment module that each user's three-phase electricity access port is arranged in, the incoming switch between three-phase power circuit and three-phase load dynamic equilibrium adjustment module；Three-phase load dynamic equilibrium adjustment module includes the first acquisition unit of the voltage of transformer outlet for receiving testing agency's detection, current parameters, for acquiring the voltage of load-side, the second acquisition unit of current parameters, the static synchronous compensator of work is compensated for the controller according to the received data output operation instruction of the first acquisition unit, the second acquisition unit and according to the operational order that controller exports.Using the utility model, the work of static synchronous compensator is controlled according to the voltage and current value of source side and load-side, so that the three-phase load of low-voltage network system be made to reach balance.
Description
Technical field
The utility model relates to power transformation or distribution technique field, in particular to a kind of three-phase load unbalance regulating system.
Background technique
Currently, substantially using three-phase and four-line or Three-phase five-wire in the city dweller in China and business and rural power grids
Power supply system, the irregularities of single-phase power load and consumption habit with absolute quantity lead to distribution system three
The imbalance of phase current.In low-voltage network system, imbalance is absolute；Balance is then opposite.Three-phase imbalance produces
Raw reason has: terminal block reason, period electricity consumption, seasonal fluctuation and randomness fluctuation.
Although power grid is still difficult to keep up with residential electricity consumption also in continuous transformation to meet the needs of resident is to electricity consumption
Increase and changes.It is that line end voltage is low for resident and electric system contradiction more outstanding, household electrical appliance is caused to be difficult to
It works normally, influences the normal life of resident, the transport inspection department door of electric system is often by customer complaint.Cause line end voltage
The main reason for low is that three-phase load unbalance causes monophase current excessive, and the phase line voltage drop is big, causes the phase line last
Hold voltage low.
Utility model content
In order to overcome the shortcomings of above-mentioned technology, the purpose of the utility model is to provide a kind of three-phase load unbalances to adjust system
System.
To achieve the above object, the utility model provides following scheme:
A kind of three-phase load unbalance regulating system, the three-phase load unbalance regulating system, comprising: be arranged in transformation
The testing agency in device three-phase exit and the three-phase load dynamic equilibrium that each user's three-phase electricity access port is arranged in adjust mould
Block, incoming switch；The incoming switch is set between three-phase power circuit and the three-phase load dynamic equilibrium adjustment module；
The three-phase load dynamic equilibrium adjustment module includes the transformer outlet for receiving testing agency's detection
Voltage, current parameters the first acquisition unit use for acquiring the voltage of load-side, the second acquisition unit of current parameters
According to the controller of the received data output operation instruction of first acquisition unit, second acquisition unit and according to
The operational order of the controller output compensates the static synchronous compensator of work.
Optionally, the three-phase load unbalance regulating system further includes signal terminal, signal terminal
It is installed on the three-phase power circuit；The three-phase load dynamic equilibrium adjustment module passes sequentially through the incoming switch, described
Signal terminal is installed in the three-phase power circuit, and the three-phase load dynamic equilibrium module is electric by the three phase mains
Road is divided into load-side and source side；The static synchronous compensator for export export it is equal with the size of current of load-side,
Contrary electric current makes the current value of the source side reach balance.
Optionally, the three-phase load dynamic equilibrium adjustment module is additionally provided with wireless communication unit, and will test data with
And operational order is uploaded to remote terminal.
Optionally, the remote terminal is equipped with human-computer interaction interface.
Optionally, the incoming switch include three switch, three switch respectively with the A phase of the three-phase power circuit, B
Phase, C are connected.
Optionally, the incoming switch is breaker of plastic casing or magnetic latching relay.
Optionally, signal terminal is plug type terminal.
Optionally, the three-phase load unbalance regulating system further includes protection location；The protection location is for protecting
Damage of the three-phase load dynamic equilibrium module from peak current or voltage.
Optionally, the protection location is miniature circuit breaker or Surge Protector.
According to specific embodiment provided by the utility model, the utility model discloses following technical effects:
The utility model provides a kind of three-phase load unbalance regulating system, the three-phase load unbalance regulating system packet
It includes the testing agency that Three-Phase Transformer exit is set and the three-phase load that each user's three-phase electricity access port is arranged in is dynamic
State balance adjustment module, incoming switch；The incoming switch is set to three-phase power circuit and the three-phase load dynamic equilibrium tune
It saves between module；The three-phase load dynamic equilibrium adjustment module includes going out for receiving the transformer of testing agency's detection
Mouthful voltage, current parameters the first acquisition unit, for acquiring the voltage of load-side, the second acquisition unit of current parameters,
For the controller and root according to first acquisition unit, the received data output operation instruction of second acquisition unit
The static synchronous compensator of work is compensated according to the operational order that the controller exports.Using the utility model, according to electricity
The voltage and current value of source and load-side controls the work of static synchronous compensator, to keep the three-phase of low-voltage network system negative
Lotus reaches balance.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment three-phase load unbalance regulating system.
Specific embodiment
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
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of three-phase load unbalance regulating systems, can make low-voltage network system
Three-phase load reach balance.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
Fig. 1 is the structural schematic diagram of the utility model embodiment three-phase load unbalance regulating system, as shown in Figure 1, this
The three-phase load unbalance regulating system that utility model embodiment provides includes: that the detection machine in Three-Phase Transformer exit is arranged in
Structure 1 and the three-phase load dynamic equilibrium adjustment module 2 of each user's three-phase electricity access port, incoming switch 3 are set.
The incoming switch 3 is set between three-phase power circuit 4 and the three-phase load dynamic equilibrium adjustment module 2.Institute
Stating incoming switch 3 includes three switches, and three switches are connect with the A phase, B phase, C phase of the three-phase power circuit 4 respectively.It is preferred that
, the incoming switch 3 is breaker of plastic casing or magnetic latching relay.
The three-phase load unbalance regulating system further includes signal terminal 5, and signal terminal 5 is installed on
On the three-phase power circuit 4；The three-phase load dynamic equilibrium adjustment module 2 is installed on by signal terminal 5
In the three-phase power circuit 4.Signal terminal 5 is plug type terminal.The three-phase load dynamic equilibrium module 2
The three-phase power circuit 4 is divided into load-side and source side.
The three-phase load dynamic equilibrium adjustment module 2 includes going out for receiving the transformer that the testing agency 1 is detected
Mouthful voltage, current parameters the first acquisition unit 21, for acquiring the voltage of load-side, the second acquisition unit of current parameters
22, for the control according to first acquisition unit 21, the instruction of the received data output operation of second acquisition unit 22
Device 23 and the static synchronous compensator 24 that work is compensated according to the operational order that the controller 23 exports.Wherein, institute
State voltage, current parameters that the second acquisition unit 22 obtains load-side by the closure of incoming switch 3.
The static synchronous compensator 24, which is used to export, exports electricity equal with the size of current of load-side, contrary
Stream, makes the current value of the source side reach balance.
Preferably, the three-phase load dynamic equilibrium adjustment module is additionally provided with wireless communication unit 6, and will test data with
And operational order is uploaded to remote terminal 7.Wherein, the remote terminal 7 is equipped with human-computer interaction interface.
Preferably, the three-phase load unbalance regulating system further includes protection location 8；The protection location 8 is for protecting
Three-phase load dynamic equilibrium module is protected from the damage of peak current or voltage.The protection location 8 be miniature circuit breaker or
Surge Protector.
The working principle of the three-phase load unbalance regulating system are as follows: load-side is acquired by the second acquisition unit 22
Electric current, voltage parameter analyze the electric current of load-side 81 by controller 23, analyze idle, negative phase-sequence, harmonic current on route,
Start pulse signal driving is generated according to space vector pulse width modulation (SVPWM) control method, drives static synchronous compensator 24
Idle, the negative phase-sequence, the compensation electric current that harmonic current is equal in magnitude, contrary for exporting and detecting, it is comprehensive to solve power distribution station
The problems such as idle, harmonic wave, voltage fluctuation and three-phase load unbalance.
The utility model installation is simple and convenient, and when maintenance, since the three-phase load dynamic equilibrium of the utility model is adjusted
Module, when module outgoing line problem, without the maintenance that has a power failure, only needs to change new three-phase load dynamic using being plug type terminal
Balance adjustment module can be completed.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of three-phase load unbalance regulating system, which is characterized in that the three-phase load unbalance regulating system, comprising:
The testing agency in Three-Phase Transformer exit is set and the three-phase load dynamic of each user's three-phase electricity access port is set
Balance adjustment module, incoming switch；The incoming switch is set to three-phase power circuit and the three-phase load dynamic equilibrium is adjusted
Between module；
The three-phase load dynamic equilibrium adjustment module includes the electricity for receiving the transformer outlet of testing agency's detection
First acquisition unit of pressure, current parameters is used for root for acquiring the voltage of load-side, the second acquisition unit of current parameters
According to first acquisition unit, the controller of the received data output operation instruction of second acquisition unit and according to described
The operational order of controller output compensates the static synchronous compensator of work.
2. three-phase load unbalance regulating system according to claim 1, which is characterized in that the three-phase load unbalance
Regulating system further includes signal terminal, and signal terminal is installed on the three-phase power circuit；The three-phase is negative
Lotus dynamic equilibrium adjustment module is installed in the three-phase power circuit by signal terminal, and the three-phase load is dynamic
The three-phase power circuit is divided into load-side and source side by state balance module；The static synchronous compensator for export with
Equal, the contrary electric current of the size of current of load-side, makes the current value of the source side reach balance.
3. three-phase load unbalance regulating system according to claim 1, which is characterized in that the three-phase load dynamic is flat
Weighing apparatus adjustment module is additionally provided with wireless communication unit, and will test data and operational order is uploaded to remote terminal.
4. three-phase load unbalance regulating system according to claim 3, which is characterized in that the remote terminal is equipped with people
Machine interactive interface.
5. three-phase load unbalance regulating system according to claim 1, which is characterized in that the incoming switch includes three
A switch, three switches are connect with the A phase, B phase, C phase of the three-phase power circuit respectively.
6. three-phase load unbalance regulating system according to claim 1, which is characterized in that the incoming switch is plastic housing
Breaker or magnetic latching relay.
7. three-phase load unbalance regulating system according to claim 2, which is characterized in that signal terminal is
Plug type terminal.
8. three-phase load unbalance regulating system according to claim 1, which is characterized in that the three-phase load unbalance
Regulating system further includes protection location；The protection location for protecting three-phase load dynamic equilibrium module from peak current or
The damage of voltage.
9. three-phase load unbalance regulating system according to claim 8, which is characterized in that the protection location is miniature
Breaker or Surge Protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870253.4U CN209217729U (en) | 2018-11-14 | 2018-11-14 | A kind of three-phase load unbalance regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821870253.4U CN209217729U (en) | 2018-11-14 | 2018-11-14 | A kind of three-phase load unbalance regulating system |
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| Publication Number | Publication Date |
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| CN209217729U true CN209217729U (en) | 2019-08-06 |
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| CN201821870253.4U Active CN209217729U (en) | 2018-11-14 | 2018-11-14 | A kind of three-phase load unbalance regulating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510218A (en) * | 2018-11-14 | 2019-03-22 | 中气电力装备有限公司 | A kind of three-phase load unbalance regulating system |
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2018
- 2018-11-14 CN CN201821870253.4U patent/CN209217729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510218A (en) * | 2018-11-14 | 2019-03-22 | 中气电力装备有限公司 | A kind of three-phase load unbalance regulating system |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A three-phase load unbalance regulation system Effective date of registration: 20220426 Granted publication date: 20190806 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHONGQI POWER EQUIPMENT Co.,Ltd. Registration number: Y2022330000597 |