CN204578104U - A kind of low-voltage distribution transformer load distribution device - Google Patents
A kind of low-voltage distribution transformer load distribution device Download PDFInfo
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- CN204578104U CN204578104U CN201520294261.9U CN201520294261U CN204578104U CN 204578104 U CN204578104 U CN 204578104U CN 201520294261 U CN201520294261 U CN 201520294261U CN 204578104 U CN204578104 U CN 204578104U
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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
Abstract
A kind of low-voltage distribution transformer load distribution device, described device is made up of real-time load data acquisition module, main control module, three-phase composite switch module and communication module; Real-time load data acquisition module connects the input of main control module; The output of main control module connects the input of three-phase composite switch module; Main control module and communication module interconnect, and main control module is by communication module and host interconnection.The utility model is using current unbalance factor as controling parameter, by difference installation system main frame and the utility model device on low-voltage distribution transformer and each branch line, according to the unbalance condition of distribution transformer load, in real time phase place is switched to sub-load, ensure that low-voltage distribution transformer three-phase load runs within the scope of the degree of unbalance of regulation.The utility model solves the problem causing power wastage due to low-voltage distribution transformer three-phase imbalance, substantially increases operational efficiency and the useful life of low-voltage distribution transformer.
Description
Technical field
The utility model relates to a kind of low-voltage distribution transformer load distribution device, belongs to electric power distribution transformer load distribution technique field.
Background technology
The end user of low-voltage distribution transformer electric power system comprises a large amount of single-phase loads, especially business and civilian installation: as air-conditioning, computer, electric heater, refrigerator, illumination and various household electrical appliance etc., its quantity gets more and more, power is increasing, adds that the seasonality of electricity consumption and randomness all can cause the dynamic unbalance of three-phase load more and more serious.
As everyone knows, three-phase load unbalance, the harm brought to electric power system is very serious.First harm is that three-phase load unbalance causes line loss to increase, and the numerical value that line loss increases is directly proportional to current squaring.Three-phase load unbalance, the second largest harm brought to electric power system is that transformer produces additional iron losses.
Three-phase load unbalance, the third-largest harm brought to electric power system produces additional copper loss, and additional copper loss increase can cause transformer to generate heat, and reduces the operational efficiency of transformer.Three-phase load unbalance, the fourth-largest harm brought to electric power system produces variation.
Therefore, invent a kind of low-voltage distribution transformer load intelligent regulating system to be necessary very much, its real time monitoring low-voltage distribution transformer bus each phase current size and real-time change situation and each phase current size of each branch main line and real-time change situation, gather the load parameter of all terminals of native system subordinate, decision-making next step should how again optimum allocation load, the current unbalance factor of the bus that low-voltage distribution transformer is exported and each main branch connections remains in setting range.
Publication number CN103545826 discloses a kind of low voltage electric load intelligent dispensing system and public method of completing the square, the method can export at transformer problem main line solving three-phase imbalance, but on solution main line while three-phase imbalance problem, likely the imbalance problem on each branch line can be increased the weight of, the imbalance on circuit can not be solved completely.
Summary of the invention
The purpose of this utility model is, for existing low-voltage distribution transformer Load Distribution System Problems existing, discloses a kind of low-voltage distribution transformer load distribution device
The technical solution of the utility model is, the utility model low-voltage distribution transformer load distribution device is made up of real-time load data acquisition module, main control module, three-phase composite switch module and communication module.Real-time load data acquisition module connects the input of main control module; The output of main control module connects the input of three-phase composite switch module; Main control module and communication module interconnect, and main control module is by communication module and host interconnection.
The host computer system of the utility model low-voltage distribution transformer load distribution device and low-voltage distribution transformer sharing of load supports the use, and the utility model is as the loaded termination of the host computer system of low-voltage distribution transformer sharing of load.The local customer charge voltage of Real-time Load acquisition module collection, current data are sent to main control module after conversion; Main control module connects main frame by communication module, accepts host computer control signal; After main control module accepts host computer control signal, through conversion, three-phase load switch is controlled.The utility model distribution transformer load distributor, distribute according to distribution transforming customer charge actual field situation multiple spot, distribution transformer terminals load intelligent regulating system is formed with a system host, export for Real-Time Monitoring distribution transforming, monitor each end loads curent change, and response is made to the unbalance situation of distribution transforming three-phase, regulating in three alternate switchings by controlling each end loads, exporting the degree of balance to make distribution transforming and reaching setting index.
Log-on data capture program immediately after the energising of the utility model device, size and the place of constantly detecting this terminate load load are separate, and are stored in terminal main control module CPU by certain stipulations, wait for that main frame reads.
The utility model device keeps communicating by communication module and main frame, and electric current and the place of the load of Real-time Collection each terminal installation are separate; The data acquisition command reporting system main frame issued by main frame, and be strictly consistent with system host record.
When host computer system sends " switching " order by communication module, the utility model device main control module CPU performs Host Command immediately: if will " switch ", then by three-phase composite switch, undertaken by following program: close controllable silicon-disconnection JZ-disconnection controllable silicon--switch-conjunction controllable silicon-conjunction JZ-disconnection controllable silicon that main frame requirement of closing is closed.
The beneficial effects of the utility model are, the utility model is using current unbalance factor as controling parameter, by difference installation system main frame and the utility model device on low-voltage distribution transformer and each branch line, according to the unbalance condition of distribution transformer load, in real time phase place is switched to sub-load, ensure that low-voltage distribution transformer three-phase load runs within the scope of the degree of unbalance of regulation.The utility model solves the problem causing power wastage due to low-voltage distribution transformer three-phase imbalance, substantially increases operational efficiency and the useful life of low-voltage distribution transformer.Can, on solution main line while three-phase imbalance problem, the three-phase balance degree on each branch line be made also to reach setting index.
Accompanying drawing explanation
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model distributor main control module schematic diagram;
Fig. 3 is the utility model distributor actuator control relay circuit.
Fig. 4 is the utility model distributor Principle of Communication figure.
Embodiment
Embodiment of the present utility model as shown in drawings.
The present embodiment low-voltage distribution transformer load distribution device is made up of real-time load data acquisition module, main control module, three-phase composite switch module and communication module.Real-time load data acquisition module connects the input of main control module; The output of main control module connects the input of three-phase composite switch module; Main control module and communication module interconnect, and main control module is by communication module and host interconnection.
The local customer charge voltage of the present embodiment Real-time Load acquisition module collection, current data are sent to main control module after conversion; Main control module connects main frame by communication module, accepts host computer control signal; After main control module accepts host computer control signal, through conversion, three-phase load switch is controlled.The utility model distribution transformer terminals load intelligent regulating system terminal, multiple stage distributes according to distribution transforming customer charge actual field situation multiple spot, distribution transformer terminals load intelligent regulating system is formed with a main frame, export for Real-Time Monitoring distribution transforming, monitor each end loads curent change, and response is made to the unbalance situation of distribution transforming three-phase, regulating in three alternate switchings by controlling each end loads, exporting the degree of balance to make distribution transforming and reaching setting index.
The main control module of the present embodiment device adopts PICLF1946 chip, as shown in Figure 2.
Actuator's control relay circuit of the present embodiment device as shown in Figure 3.
The telecommunication circuit of the present embodiment device as shown in Figure 4.
Claims (2)
1. a low-voltage distribution transformer load distribution device, is characterized in that, described device is made up of real-time load data acquisition module, main control module, three-phase composite switch module and communication module; Real-time load data acquisition module connects the input of main control module; The output of main control module connects the input of three-phase composite switch module; Main control module and communication module interconnect, and main control module is by communication module and host interconnection.
2. a kind of low-voltage distribution transformer load distribution device according to claim 1, is characterized in that, described main control module adopts PICLF1946 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520294261.9U CN204578104U (en) | 2015-05-09 | 2015-05-09 | A kind of low-voltage distribution transformer load distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520294261.9U CN204578104U (en) | 2015-05-09 | 2015-05-09 | A kind of low-voltage distribution transformer load distribution device |
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| Publication Number | Publication Date |
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| CN204578104U true CN204578104U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520294261.9U Active CN204578104U (en) | 2015-05-09 | 2015-05-09 | A kind of low-voltage distribution transformer load distribution device |
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| CN (1) | CN204578104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337296A (en) * | 2015-10-14 | 2016-02-17 | 国家电网公司 | Balance compensation device of low-voltage power grid |
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2015
- 2015-05-09 CN CN201520294261.9U patent/CN204578104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337296A (en) * | 2015-10-14 | 2016-02-17 | 国家电网公司 | Balance compensation device of low-voltage power grid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |