CN207588459U - Low-voltage distribution network three-phase imbalance detection control apparatus - Google Patents
Low-voltage distribution network three-phase imbalance detection control apparatus Download PDFInfo
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- CN207588459U CN207588459U CN201721425186.0U CN201721425186U CN207588459U CN 207588459 U CN207588459 U CN 207588459U CN 201721425186 U CN201721425186 U CN 201721425186U CN 207588459 U CN207588459 U CN 207588459U
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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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Abstract
The utility model provides a kind of low-voltage distribution network three-phase imbalance detection control apparatus,Including cabinet and electrical equipment,Cabinet is equipped with fixed mounting plate,Fixed mounting plate quadrangle is equipped with fixed installation holes,Fixed mounting plate is equipped with several fixing grooves,Electrical equipment includes the electric energy detection device being electrical connected successively,Control module,Drive module and adjustment module,Electric energy detection device includes detecting voltage by three phase module and three-phase current detection module,Control module includes microcontroller,Acquisition processing module is connected separately on microcontroller,Human-computer interaction module and analysis computing module,Detecting voltage by three phase module and three-phase current detection module are connect respectively with acquisition processing module,Drive module is equipped with IGBT,IGBT is connect with microcontroller,Adjustment module is equipped with inverter,Inverter is connect with IGBT,Internet of Things module is connected in control module.The utility model has the advantages that simple in structure, multiple functional, control precisely and with human-computer interaction, remote monitoring and easy for installation.
Description
Technical field
The utility model belongs to electric power low-pressure distribution technique field, and in particular to a kind of low-voltage distribution network three-phase imbalance detection
Control device.
Background technology
With Analyzing Total Electricity Consumption slowdown in growth and the feelings of most of power supply supply and transmission line of electricity skeleton gradual perfection
Under condition, the center of gravity of China's power grid construction investment will be gradually from backbone network to intelligence, with net side, sale of electricity side, the transfer of electricity consumption side.It is low
Press-fitting power grid be mostly after 10/0.4KV transformer pressure-reducings, with three-phase four-wire system to customer power supply, be three-phase productive power with
The supply network of single-phase load mixing electricity consumption.In the single-phase user of attaching, power supply department should balancedly tap single-phase load
On A, B, C three-phase.But in real work and operation, the mark of circuit connects the carelessness of electric personnel along with due to single-phase use
Asynchronism of the uncontrollable increase-volume at family, the access of great power single phase load and single-phase load electricity consumption etc., all causes three-phase
The imbalance of load.If low-voltage network is run in the case that three-phase load unbalance degree is larger, it will to low-voltage network with
Electrical equipment causes harmful effect.The three-phase imbalance of low-voltage network be exactly always perplex power supply unit main problem it
One.
A kind of distribution transformer three phase unbalance current detection compensation device (publication number CN204886200U) of patent is open
A kind of distribution transformer three phase unbalance current detection compensation device, including three-phase current detection device, controller, IGBT
Driving circuit and compensation current generating apparatus；Various pieces are electrically connected by signal wire or conducting wire, can be detected in real time
The three-phase load electric current of distribution low-voltage side, is calculated by signal processing and analyzing, provides corresponding control signal control electric current hair
The three-phase output current of generating apparatus makes the three-phase load electric current of distribution transformer realize balance, three-phase voltage balance, neutral line current
Meet national requirements, power factor qualification.But the utility model is not high to the analysis precision of Current Voltage, and not man-machine
It interacts the function with wireless monitor and lacks device and fixed scheme is installed.
Therefore needs one kind is simple in structure, integrated level is high, multiple functional, control is accurate and has human-computer interaction, remotely supervises
Control and low-voltage distribution network three-phase imbalance detection control apparatus easy for installation.
Utility model content
The purpose of this utility model is to provide a kind of low-voltage distribution network three-phase imbalance detection control apparatus, to solve existing dress
Put the problem of function is single, control effect is general and installation is inconvenient.
The utility model provides following technical solution：
A kind of low-voltage distribution network three-phase imbalance detection control apparatus, including cabinet and electrical equipment, the cabinet is equipped with
Fixed mounting plate, the fixed mounting plate quadrangle is equipped with fixed installation holes, if being additionally provided in the middle part of the fixed mounting plate solid
Determine slot, described fixing groove one end is circle, and the fixing groove other end is oblong, and the electrical equipment includes electrical phase successively
Electric energy detection device, control module, drive module and adjustment module even, the electric energy detection device include detecting voltage by three phase
Module and three-phase current detection module, the control module include microcontroller, acquisition process are connected separately on the microcontroller
Module, human-computer interaction module and analysis computing module, the detecting voltage by three phase module and the three-phase current detection module point
It is not connect with the acquisition processing module, the drive module is equipped with power first draft device IGBT, the power first draft device
IGBT is connect with the microcontroller, and the adjustment module is equipped with inverter, the inverter and the power first draft device
IGBT connections generate compensation electric current, and Internet of Things module is connected in the control module.
Preferably, the Internet of Things module is equipped with antenna and wireless communication module, and the antenna transmits and receives wireless communication
Number, the wireless communication module connect with the microcontroller and carries out telecommunication.
Preferably, the wireless communication module is 4G-IOT modules, and wireless telecommunications effect is good, low in energy consumption.
Preferably, the microcontroller is STM32 model microcontrollers, has the advantages that high-performance, low cost and low-power consumption.
Preferably, the fixed installation holes are waist-shaped hole, when installing power distribution cabinet convenient for hanging up, finely tune installation site, improve
Installation effectiveness.
Preferably, the fixed mounting plate is equipped with several reinforcing ribs to intersect vertically, ensures the stability of cabinet.
Preferably, screw is equipped in the fixing groove or steel bar fixes band, fixed cabinet.
The beneficial effects of the utility model are：
1. the utility model overall structure is simple, it is easy to accomplish.
2. equipped with human-computer interaction module, real-time display voltage, the value of electric current and drive module, adjustment module work shape
State, it is convenient intuitive, and can working method and parameter be changed with direct operation.
3. carrying out Data Analysis Services using microcontroller and controlling driving device precision high, speed is fast, at low cost.
4. equipped with Internet of Things module, it is convenient for remotely being monitored and controlled.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not form the limitation to the utility model together.In the accompanying drawings：
Fig. 1 is the utility model electrical structure schematic diagram；
Fig. 2 is the utility model cabinet fixed mounting plate schematic diagram.
In figure label for：1. fixed mounting plate, 2. fixed installation holes, 3. fixing grooves, 4. reinforcing ribs.
Specific embodiment
As shown in Figs. 1-2, a kind of low-voltage distribution network three-phase imbalance detection control apparatus, including cabinet and electrical equipment, machine
Cabinet is equipped with fixed mounting plate 1, and how 1 four jiaos of fixed mounting plate has fixed installation holes 2, if the middle part of fixed mounting plate 1 is additionally provided with
Dry fixing groove 3,3 one end of fixing groove are circle, and 3 other end of fixing groove is oblong, and electrical equipment includes what is be electrical connected successively
Electric energy detection device, control module, drive module and adjustment module, electric energy detection device include detecting voltage by three phase module and three
Phase current sensing module, control module include microcontroller, acquisition processing module, human-computer interaction module are connected separately on microcontroller
With analysis computing module, detecting voltage by three phase module and three-phase current detection module are connect respectively with acquisition processing module, described
Drive module is connect equipped with power first draft device IGBT, the power first draft device IGBT with the microcontroller, the adjusting
Module is equipped with inverter, and the inverter is connect with the power first draft device IGBT, and electric current is compensated for generating, described
Internet of Things module is connected in control module.
As shown in Figs. 1-2, Internet of Things module is equipped with antenna and wireless communication module, and antenna is used to transmit and receive wireless communication
Number, wireless communication module is used for telecommunication, and wireless communication module selects 4G-IOT modules, and wireless telecommunications effect is good, low in energy consumption,
Long-distance monitor and control can be carried out including electric energy, mobile phone etc., microcontroller is STM32 model microcontrollers, has high property with mobile terminal
The advantages of energy, low cost and low-power consumption, fixed installation holes 2 are waist-shaped hole, when installing power distribution cabinet convenient for hanging up, finely tune installation position
It puts, improves installation effectiveness, fixed mounting plate 1 is equipped with several reinforcing ribs 4 both horizontally and vertically, ensures the stabilization of cabinet
Property, screw is equipped in fixing groove 3 or steel bar fixes band, for fixing cabinet.When needing to be fixed on horizontal plane, fixed mounting plate
Pedestal is served as set on the bottom surface of cabinet, penetrating fixed installation holes by screw carries out installation fixation, when cabinet is fixed on vertical wall
When on face or plane, due to body heaviness, need for fixed mounting plate to be set on the back of cabinet, fixed installation holes are installed in screw
Afterwards, fixing groove is fixed using screw and shrapnel, fixed position can freely be adjusted in fixing groove, be carried out secondary solid
It is fixed, increase the stability of cabinet, when cabinet is installed on utility poles, steel bar can be used to fix band fixed peace in fixing groove
Dress.
As shown in Figure 1, electric energy detection device detects three-phase current and voltage in real time, signal is adopted by acquisition processing module
Microcontroller is transmitted to after collection processing, is shown on human-computer interaction module by microcontroller, analysis computing module calculates analysis three-phase
Electric current and voltage simultaneously judge that system whether in non-equilibrium state, calculates positive-sequence component, negative sequence component and zero-sequence component, then
Microcontroller drives drive module in real time, and drive module driving adjustment module sends out the electricity reversed with negative sequence component and zero-sequence component
Stream, last grid side electric current reach three-phase equilibrium state.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent replacement is carried out to which part technical characteristic.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (7)
- A kind of 1. low-voltage distribution network three-phase imbalance detection control apparatus, including cabinet and electrical equipment, which is characterized in that the machine Cabinet is equipped with fixed mounting plate, and the fixed mounting plate quadrangle is equipped with fixed installation holes, and the middle part of the fixed mounting plate is also set Have several fixing grooves, described fixing groove one end is circle, and the fixing groove other end is oblong, the electrical equipment include according to The secondary electric energy detection device being electrical connected, control module, drive module and adjustment module, the electric energy detection device include three-phase Voltage detection module and three-phase current detection module, the control module include microcontroller, are connected separately on the microcontroller Acquisition processing module, human-computer interaction module and analysis computing module, the detecting voltage by three phase module and three-phase current inspection It surveys module to connect with the acquisition processing module respectively, the drive module is equipped with power first draft device IGBT, the power First draft device IGBT is connect with the microcontroller, at the beginning of the adjustment module is equipped with inverter, the inverter and the power Original text device IGBT connections generate compensation electric current, and Internet of Things module is connected in the control module.
- A kind of 2. low-voltage distribution network three-phase imbalance detection control apparatus according to claim 1, which is characterized in that the object Networking module is equipped with antenna and wireless communication module, and the antenna transmits and receives wireless signal, the wireless communication module with The microcontroller connection carries out telecommunication.
- A kind of 3. low-voltage distribution network three-phase imbalance detection control apparatus according to claim 2, which is characterized in that the nothing Line communication module is 4G-IOT modules.
- A kind of 4. low-voltage distribution network three-phase imbalance detection control apparatus according to claim 1, which is characterized in that the list Piece machine is STM32 model microcontrollers.
- 5. a kind of low-voltage distribution network three-phase imbalance detection control apparatus according to claim 1, which is characterized in that described solid Mounting hole is determined for waist-shaped hole.
- 6. a kind of low-voltage distribution network three-phase imbalance detection control apparatus according to claim 1, which is characterized in that described solid Dingan County's loading board is equipped with several reinforcing ribs to intersect vertically.
- 7. a kind of low-voltage distribution network three-phase imbalance detection control apparatus according to claim 1, which is characterized in that described solid Determine to be equipped with screw in slot or steel bar fixes band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425186.0U CN207588459U (en) | 2017-10-31 | 2017-10-31 | Low-voltage distribution network three-phase imbalance detection control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721425186.0U CN207588459U (en) | 2017-10-31 | 2017-10-31 | Low-voltage distribution network three-phase imbalance detection control apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207588459U true CN207588459U (en) | 2018-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118444015A (en) * | 2024-04-30 | 2024-08-06 | 怀化建南机器厂有限公司 | Three-phase intelligent ammeter based on thing networking |
-
2017
- 2017-10-31 CN CN201721425186.0U patent/CN207588459U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118444015A (en) * | 2024-04-30 | 2024-08-06 | 怀化建南机器厂有限公司 | Three-phase intelligent ammeter based on thing networking |
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