CN106786678A - Three-phase imbalance regulates and controls method and device - Google Patents
Three-phase imbalance regulates and controls method and device Download PDFInfo
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- CN106786678A CN106786678A CN201611146905.5A CN201611146905A CN106786678A CN 106786678 A CN106786678 A CN 106786678A CN 201611146905 A CN201611146905 A CN 201611146905A CN 106786678 A CN106786678 A CN 106786678A
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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
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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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 invention discloses a kind of three-phase imbalance regulation and control method and device.Wherein, the method includes：The corresponding electric signal parameter of collection targeted loads, wherein, targeted loads are the threephase load under transformer of the carry in designated area；According to the corresponding electric signal parameter of targeted loads for collecting, the corresponding three-phase imbalance angle value of threephase load in designated area is calculated；Whether the three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold value set in advance；If so, then carrying out three-phase imbalance regulation and control to the threephase load in designated area.The present invention is solved in heating season, the technical problem of the access of electric heating equipment to low voltage electric network three-phase imbalance.
Description
Technical field
The present invention relates to power regulation field, method and device is regulated and controled in particular to a kind of three-phase imbalance.
Background technology
To reduce winter pollution that caused by coal burning, improving air quality, government implements electric energy replacement work, and using electricity instead of coal is pushed greatly
Row electric heating mode.The implementation of " coal changes electricity " work so that large-scale electric heating equipment accesses power network, scale is so huge
Customer group, necessarily derives the heat load of substantial amounts of electric heating equipment and Large Copacity, causes network load to sharply increase, and electricity is adopted
The proportion that warm load accounts for total load is also greatly increased.Additionally, the three-phase imbalance of low voltage electric network is exactly always to perplex power supply unit
One of subject matter, in real work and operation, the mark of circuit, the carelessness for meeting electric personnel are added due to single-phase user
The asynchronism of uncontrollable increase-volume, the access of great power single phase load and single-phase load electricity consumption etc., can all cause three-phase to bear
The imbalance of load.Therefore.During warm season, if powerful electric heating load is irregular, access power network without sequential, will
The problem of power network three-phase imbalance can be aggravated, tremendous influence is caused to power network, gently then reduce the confession of circuit and distribution transformer
Electrical efficiency, it is heavy then can mutually be overloaded because of heavy load excessive, it is likely to result in certain phase conductor and blows, switch and burn out or even distribution transformer list
The serious consequence such as mutually burn.It can be seen that, the access of electric heating equipment brings harmful effect to low voltage electric network three-phase imbalance.
For above-mentioned problem, effective solution is not yet proposed at present.
The content of the invention
A kind of three-phase imbalance regulation and control method and device is the embodiment of the invention provides, at least to solve in heating season,
Technical problem of the access of electric heating equipment to low voltage electric network three-phase imbalance.
One side according to embodiments of the present invention, there is provided a kind of three-phase imbalance regulates and controls method, including：Collection target
Corresponding electric signal parameter is loaded, wherein, above-mentioned targeted loads are the threephase load under transformer of the carry in designated area；
According to the corresponding above-said current signal parameter of above-mentioned targeted loads for collecting, above-mentioned threephase load pair in above-mentioned designated area is calculated
The three-phase imbalance angle value answered；Whether the above-mentioned three-phase imbalance angle value that judgement is calculated is uneven more than three-phase set in advance
Weighing apparatus degree threshold value；If so, then carrying out three-phase imbalance regulation and control to the above-mentioned threephase load in above-mentioned designated area.
Further, above-mentioned threephase load includes：Load in load, the second phase line and third phase line in first phase line
On load, wherein, the above-mentioned threephase load in above-mentioned designated area is carried out three-phase imbalance regulation and control include：If above-mentioned first
The load that load in phase line is more than on load and the above-mentioned third phase line in above-mentioned second phase line is less than in above-mentioned second phase line
Load, then suspend the first electric heating equipment in the load in above-mentioned first phase line is carried out direct heating and pause to above-mentioned
The thermal store of the first electric heating equipment carries out heat accumulation, while entering to the second electric heating equipment in the load on above-mentioned third phase line
The row direct heating and thermal store to above-mentioned second electric heating equipment carries out heat accumulation.
Further, it is above-mentioned after the above-mentioned threephase load in above-mentioned designated area carries out three-phase imbalance regulation and control
Method also includes：Judge whether the corresponding three-phase imbalance angle value of above-mentioned threephase load in the above-mentioned designated area after regulation and control drops
Below as little as above-mentioned tri-phase unbalance factor threshold value set in advance；If so, above-mentioned first electric heating for then recovering user's setting sets
The heating mode of standby and above-mentioned second electric heating equipment.
Further, if the load in above-mentioned first phase line is more than the load in above-mentioned second phase line and above-mentioned third phase line
On load less than the load in above-mentioned second phase line, then suspend and the first electric heating in the load in above-mentioned first phase line set
It is standby to carry out direct heating and suspend to carry out heat accumulation to the thermal store of above-mentioned first electric heating equipment, while on above-mentioned third phase line
Load in the second electric heating equipment carry out direct heating and the thermal store to above-mentioned second electric heating equipment carries out heat accumulation bag
Include：If the load that the load in above-mentioned first phase line is more than on load and the above-mentioned third phase line in above-mentioned second phase line is less than upper
The load in the second phase line is stated, then three-phase imbalance regulation and control instruction is sent to monitor terminal, so that above-mentioned monitor terminal is according to upper
State three-phase imbalance regulation and control instruction and perform following control manipulation：Pause is to the first electric heating in the load in above-mentioned first phase line
Equipment carries out direct heating and pause carries out heat accumulation to the thermal store of above-mentioned first electric heating equipment, while to above-mentioned third phase line
On load in the second electric heating equipment carry out direct heating and the thermal store to above-mentioned second electric heating equipment carries out heat accumulation.
Further, the corresponding electric signal parameter of collection targeted loads includes：Gather the corresponding voltage of above-mentioned targeted loads
Signal parameter and/or current signal parameter.
Another aspect according to embodiments of the present invention, additionally provides a kind of three-phase imbalance regulation device, it is characterised in that
Including：Collecting unit, for gathering the corresponding electric signal parameter of targeted loads, wherein, above-mentioned targeted loads are that carry is being specified
The threephase load under transformer in region；Computing unit, for according to the corresponding above-mentioned electricity of above-mentioned targeted loads for collecting
Signal parameter, calculates the corresponding three-phase imbalance angle value of above-mentioned threephase load in above-mentioned designated area；First judging unit, is used for
Whether the above-mentioned three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold value set in advance；Regulation and control unit,
For where it has, carrying out three-phase imbalance regulation and control to the above-mentioned threephase load in above-mentioned designated area.
Further, above-mentioned threephase load includes：Load in load, the second phase line and third phase line in first phase line
On load, wherein, above-mentioned regulation and control unit is additionally operable to：If the load in above-mentioned first phase line is more than negative in above-mentioned second phase line
Carry and the load on above-mentioned third phase line is less than the load in above-mentioned second phase line, then suspend to the load in above-mentioned first phase line
In the first electric heating equipment carry out direct heating and pause carries out heat accumulation to the thermal store of above-mentioned first electric heating equipment, while
Direct heating is carried out to the second electric heating equipment in the load on above-mentioned third phase line and to above-mentioned second electric heating equipment
Thermal store carries out heat accumulation.
Further, said apparatus also include：Second judging unit, for the above-mentioned three-phase in above-mentioned designated area
Load is carried out after three-phase imbalance regulation and control, judges the corresponding three-phase of above-mentioned threephase load in the above-mentioned designated area after regulation and control
Whether uneven angle value is reduced to below above-mentioned tri-phase unbalance factor threshold value set in advance；Recovery unit, in the feelings for being
Under condition, recover above-mentioned first electric heating equipment of user's setting and the heating mode of above-mentioned second electric heating equipment.
Further, above-mentioned regulation and control unit is additionally operable to：If the load in above-mentioned first phase line is more than in above-mentioned second phase line
Load and above-mentioned third phase line on load less than the load in above-mentioned second phase line, then send three-phase to monitor terminal uneven
Weighing apparatus regulation and control instruction, so that above-mentioned monitor terminal performs following control manipulation according to above-mentioned three-phase imbalance regulation and control instruction：Pause is right
The first electric heating equipment in load in above-mentioned first phase line carries out direct heating and pause is to above-mentioned first electric heating equipment
Thermal store carry out heat accumulation, while carrying out direct heating and right to the second electric heating equipment in the load on above-mentioned third phase line
The thermal store of above-mentioned second electric heating equipment carries out heat accumulation.
Further, above-mentioned collecting unit is additionally operable to：Gather the corresponding voltage signal parameter of above-mentioned targeted loads and/or electricity
Stream signal parameter.
In embodiments of the present invention, method is regulated and controled using a kind of three-phase imbalance, including：The corresponding electricity of collection targeted loads
Signal parameter, wherein, above-mentioned targeted loads are the threephase load under transformer of the carry in designated area；According to what is collected
The corresponding above-said current signal parameter of above-mentioned targeted loads, calculates the corresponding three-phase of above-mentioned threephase load in above-mentioned designated area uneven
Weighing apparatus angle value；Whether the above-mentioned three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold value set in advance；If
It is that three-phase imbalance regulation and control then are carried out to the above-mentioned threephase load in above-mentioned designated area, has reached powerful electric heating and set
After standby access power network, the purpose of power network three-phase equilibrium is maintained, it is achieved thereby that preventing electrical equipment from burning out, keep power network three equal
The technique effect of weighing apparatus, and then solve in heating season, the technology of the access of electric heating equipment to low voltage electric network three-phase imbalance
Problem.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart that a kind of optional three-phase imbalance according to embodiments of the present invention regulates and controls method；
Fig. 2 is the schematic diagram of a kind of optional three-phase imbalance regulation device according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, there is provided a kind of three-phase imbalance regulates and controls embodiment of the method, it is necessary to illustrate, attached
The step of flow of figure is illustrated can perform in the such as one group computer system of computer executable instructions, though also,
So logical order is shown in flow charts, but in some cases, can be with shown different from order execution herein
Or the step of description.
Fig. 1 is the flow chart that a kind of optional three-phase imbalance according to embodiments of the present invention regulates and controls method, such as Fig. 1 institutes
Show, the method comprises the following steps：
Step S102, the corresponding electric signal parameter of collection targeted loads, wherein, targeted loads are carry in designated area
Transformer under threephase load；
Step S104, according to the corresponding electric signal parameter of targeted loads for collecting, calculates threephase load in designated area
Corresponding three-phase imbalance angle value；
Step S106, whether the three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold set in advance
Value；
Step S108, if three-phase imbalance angle value is more than tri-phase unbalance factor threshold value set in advance, to designated area
Interior threephase load carries out three-phase imbalance regulation and control.
That is, firstly the need of the electric signal parameter of collection targeted loads, electric signal parameter includes the electric signals such as voltage, electric current
Parameter, wherein, targeted loads are the threephase loads under the transformer in designated area, can be negative under each area's transformer
Load, such as electric heating equipment, including powerful device and low power equipment.After the electric signal parameter for collecting targeted loads,
The corresponding three-phase imbalance angle value of load in the region is calculated according to electric signal parameter, by the three-phase imbalance angle value with it is advance
The tri-phase unbalance factor threshold value of setting is compared, if three-phase imbalance angle value is more than tri-phase unbalance factor threshold set in advance
Value, then carry out three-phase imbalance regulation and control to the threephase load in designated area.If three-phase imbalance angle value is less than set in advance
Tri-phase unbalance factor threshold value, then illustrate the three-phase equilibrium of threephase load, can be without regulation and control, certainly, three-phase imbalance angle value etc.
When tri-phase unbalance factor threshold value set in advance, can regulate and control, it is also possible to do not regulate and control, the embodiment of the present invention can be selected
Regulate and control in the case of equal.
By above-mentioned implementation method, method is regulated and controled using a kind of three-phase imbalance, including：The corresponding electricity of collection targeted loads
Signal parameter, wherein, above-mentioned targeted loads are the threephase load under transformer of the carry in designated area；According to what is collected
The corresponding above-said current signal parameter of above-mentioned targeted loads, calculates the corresponding three-phase of above-mentioned threephase load in above-mentioned designated area uneven
Weighing apparatus angle value；Whether the above-mentioned three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold value set in advance；If
It is that three-phase imbalance regulation and control then are carried out to the above-mentioned threephase load in above-mentioned designated area, has reached powerful electric heating and set
After standby access power network, the purpose of power network three-phase equilibrium is maintained, it is achieved thereby that preventing electrical equipment from burning out, keep power network three equal
The technique effect of weighing apparatus, and then solve in heating season, the technology of the access of electric heating equipment to low voltage electric network three-phase imbalance
Problem.
Alternatively, threephase load includes：It is negative in load and third phase line in load, the second phase line in first phase line
Carry, wherein, three-phase imbalance regulation and control are carried out to the threephase load in designated area to be included：If load in the first phase line is more than the
Load in load and third phase line in two phase lines then suspends to the load in the first phase line less than the load in the second phase line
In the first electric heating equipment carry out direct heating and pause carries out heat accumulation to the thermal store of the first electric heating equipment, while to the
The second electric heating equipment in load in triple line carries out direct heating and the thermal store to the second electric heating equipment is stored up
Heat.
That is, when the load in first phase line such as platform area transformer of designated area, the load in the second phase line and
Load in triple line occurs uneven and during more than in the case of given threshold, can suspend the one of phase line on three-phase
Electric heating equipment in load carries out direct heating and pause carries out heat accumulation to the thermal store of electric heating equipment.Can be by big data
Control instruction to the monitor terminal of this area transformer subordinate's electric heating equipment is analyzed and issues, so as to control electric heating equipment
The working condition of heat accumulating portion.For example, the load in the first phase line is more than the load in the second phase line, and it is negative on third phase line
When carrying the load being less than in the second phase line, then suspend and the first electric heating equipment in the load in the first phase line is directly supplied
Heat, and pause carries out heat accumulation to the thermal store of the first electric heating equipment, while being adopted to the second electricity in the load on third phase line
Heating equipment carries out direct heating, and thermal store to the second electric heating equipment carries out heat accumulation.
Alternatively, after the threephase load in designated area carries out three-phase imbalance regulation and control, method also includes：Judge
It is uneven whether the corresponding three-phase imbalance angle value of the threephase load in designated area after regulation and control is reduced to three-phase set in advance
Below weighing apparatus degree threshold value；If so, then recovering the first electric heating equipment of user's setting and the heating mode of the second electric heating equipment.
That is, after carrying out three-phase imbalance regulation and control such as the threephase load of a certain area's transformer in designated area,
First judge whether threephase load corresponding three-phase imbalance angle value in this area is reduced to tri-phase unbalance factor threshold value set in advance
Hereinafter, if had been reduced to below threshold value, (i.e. after a period of time is run, tri-phase unbalance factor is reduced to below given threshold
When), recover user's setting heating mode.
Alternatively, if load in the first phase line more than the load in the second phase line and the load on third phase line less than the
Load in two phase lines, then suspending carries out direct heating to the first electric heating equipment in the load in the first phase line and suspends right
The thermal store of the first electric heating equipment carries out heat accumulation, while being carried out directly to the second electric heating equipment in the load on third phase line
Connecing heat supply and the thermal store to the second electric heating equipment carries out heat accumulation and includes：If the load in the first phase line is more than in the second phase line
Load and third phase line on load less than the load in the second phase line, then send three-phase imbalance regulation and control to monitor terminal and refer to
Order, so that monitor terminal performs following control manipulation according to three-phase imbalance regulation and control instruction：Pause is to the load in the first phase line
In the first electric heating equipment carry out direct heating and pause carries out heat accumulation to the thermal store of the first electric heating equipment, while to the
The second electric heating equipment in load in triple line carries out direct heating and the thermal store to the second electric heating equipment is stored up
Heat.
Electric heating equipment in the phase line big by adjusting load temporarily ceases directly-heated and heat accumulation, is stored using thermal store
Heat is heated, to reduce the load in the phase line；Electric heating equipment in the small phase line of adjustment load is entered using directly-heated
To thermal store heat accumulation is carried out while row heat supply to increase the load in the phase line.It should be noted that the side of above-mentioned regulation and control
Formula can regulate and control in the system of a few part compositions such as system platform, monitor terminal, electric heating equipment and user load.Such as system
Platform becomes three-phase by gathering the data-signals such as voltage, the electric current of each household under each area's transformer, and calculating each area
The uneven angle value of load.A tri-phase unbalance factor threshold value is preset, if the signal for collecting exceedes the threshold value of setting, is started
Regulatory mechanism.
Alternatively, the corresponding electric signal parameter of collection targeted loads includes：The corresponding voltage signal ginseng of collection targeted loads
Number and/or current signal parameter.
The working time of electric heating apparatus heat accumulating portion is flexibly controlled by system platform to be made regulating and controlling power network three-phase load
Reach in a basic balance, can solve to add because powerful electric heating equipment accesses power network in extensive " coal changes electricity " engineering
The problem of weight power network three-phase imbalance in itself, meanwhile, the work for manually adjusting three-phase imbalance can be reduced using this kind of method
Task, uses manpower and material resources sparingly.Three-phrase burden balance is the basis of safe power supply while being also saving energy consumption, the base of drop damage price reduction
Plinth.Three-phrase burden balance just can guarantee that the quality of power supply of user, it is ensured that the good operation of low-voltage leakage always protection, prevent personal electric shock
Casualty accident.
Embodiment 2
Another aspect according to embodiments of the present invention, additionally provides a kind of three-phase imbalance regulation device, and Fig. 2 is according to this
The schematic diagram of a kind of optional three-phase imbalance regulation device of inventive embodiments, the device includes：Collecting unit 20, for adopting
The corresponding electric signal parameter of collection targeted loads, wherein, targeted loads are that the three-phase under transformer of the carry in designated area is born
Carry；Computing unit 40, for according to the corresponding electric signal parameter of targeted loads for collecting, calculating threephase load in designated area
Corresponding three-phase imbalance angle value；Whether the first judging unit 60, the three-phase imbalance angle value for judging to be calculated is more than
Tri-phase unbalance factor threshold value set in advance；Regulation and control unit 80, for where it has, to the threephase load in designated area
Carry out three-phase imbalance regulation and control.
By above-mentioned implementation method, after having reached powerful electric heating equipment access power network, power network three-phase equilibrium is maintained
Purpose, it is achieved thereby that prevent electrical equipment from burning out, keep the technique effect of power network three-phase equilibrium, and then solve in heating
Season, the technical problem of the access of electric heating equipment to low voltage electric network three-phase imbalance.
Alternatively, threephase load includes：It is negative in load and third phase line in load, the second phase line in first phase line
Carry, wherein, regulation and control unit is additionally operable to：If the load in the first phase line is more than negative in the load in the second phase line and third phase line
Carry less than the load in the second phase line, then suspend carries out direct heating to the first electric heating equipment in the load in the first phase line
And pause carries out heat accumulation to the thermal store of the first electric heating equipment, while being set to the second electric heating in the load on third phase line
It is standby to carry out direct heating and the thermal store to the second electric heating equipment carries out heat accumulation.
Alternatively, device also includes：Second judging unit, three-phase is carried out not for the threephase load in designated area
After balance regulation, judge whether the corresponding three-phase imbalance angle value of threephase load in the designated area after regulation and control is reduced to pre-
Below the tri-phase unbalance factor threshold value for first setting；Recovery unit, for where it has, the first electricity for recovering user's setting is adopted
The heating mode of heating equipment and the second electric heating equipment.
Alternatively, regulation and control unit is additionally operable to：If the load in the first phase line is more than the load in the second phase line and third phase
Load on line then sends three-phase imbalance regulation and control instruction less than the load in the second phase line to monitor terminal, so that monitoring is eventually
End performs following control manipulation according to three-phase imbalance regulation and control instruction：Pause is to the first electric heating in the load in the first phase line
Equipment carries out direct heating and pause carries out heat accumulation to the thermal store of the first electric heating equipment, while to the load on third phase line
In the second electric heating equipment carry out direct heating and the thermal store to the second electric heating equipment carries out heat accumulation.
Alternatively, collecting unit is additionally operable to：The corresponding voltage signal parameter of collection targeted loads and/or current signal ginseng
Number.
It should be noted that the implementation method of device part and the implementation method for implementing method part in 1 in embodiment 2
It is that, relative to moral, will not be repeated here.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be by other
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is to realize in the form of SFU software functional unit and as independent production marketing or use
When, can store in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for being contributed to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of three-phase imbalance regulates and controls method, it is characterised in that including：
The corresponding electric signal parameter of collection targeted loads, wherein, the targeted loads are transformer of the carry in designated area
Under threephase load；
According to the corresponding electric signal parameter of the targeted loads for collecting, calculate the three-phase in the designated area and bear
Carry corresponding three-phase imbalance angle value；
Whether the three-phase imbalance angle value that judgement is calculated is more than tri-phase unbalance factor threshold value set in advance；
If so, then carrying out three-phase imbalance regulation and control to the threephase load in the designated area.
2. method according to claim 1, it is characterised in that the threephase load includes：Load, in first phase line
The load in load and third phase line in two phase lines, wherein, three-phase is carried out to the threephase load in the designated area
Imbalance regulation and control include：
If the load that the load in first phase line is more than on load and the third phase line in second phase line is less than
Load in second phase line, then suspend and the first electric heating equipment in the load in first phase line directly supplied
Heat and pause carries out heat accumulation to the thermal store of first electric heating equipment, while in the load on the third phase line the
Two electric heating equipments carry out direct heating and the thermal store to second electric heating equipment carries out heat accumulation.
3. method according to claim 2, it is characterised in that the threephase load in the designated area is carried out
After three-phase imbalance regulation and control, methods described also includes：
Judge whether the corresponding three-phase imbalance angle value of the threephase load in the designated area after regulation and control is reduced to institute
State below tri-phase unbalance factor threshold value set in advance；
If so, then recovering first electric heating equipment of user's setting and the heating mode of second electric heating equipment.
4. method according to claim 2, it is characterised in that if the load in first phase line is more than second phase
The load in load and the third phase line on line then suspends to first phase line less than the load in second phase line
On load in the first electric heating equipment carry out direct heating and pause the thermal store of first electric heating equipment carried out
Heat accumulation, while carrying out direct heating to the second electric heating equipment in the load on the third phase line and being adopted to second electricity
The thermal store of heating equipment carries out heat accumulation to be included：
If the load that the load in first phase line is more than on load and the third phase line in second phase line is less than
Load in second phase line, then to monitor terminal send three-phase imbalance regulation and control instruction so that the monitor terminal according to
The three-phase imbalance regulation and control instruction performs following control manipulation：
Pause carries out direct heating to the first electric heating equipment in the load in first phase line and pause is to described first
The thermal store of electric heating equipment carries out heat accumulation, while being carried out directly to the second electric heating equipment in the load on the third phase line
Connect heat supply and the thermal store to second electric heating equipment carries out heat accumulation.
5. method according to claim 2, it is characterised in that the corresponding electric signal parameter of collection targeted loads includes：
Gather the corresponding voltage signal parameter of the targeted loads and/or current signal parameter.
6. a kind of three-phase imbalance regulation device, it is characterised in that including：
Collecting unit, for gathering the corresponding electric signal parameter of targeted loads, wherein, the targeted loads are carry in specified area
The threephase load under transformer in domain；
Computing unit, for according to the corresponding electric signal parameter of the targeted loads for collecting, calculating the specified area
The corresponding three-phase imbalance angle value of the threephase load in domain；
Whether the first judging unit, the three-phase imbalance angle value for judging to be calculated is more than three-phase set in advance not
Degree of balance threshold value；
Regulation and control unit, for where it has, carrying out three-phase imbalance tune to the threephase load in the designated area
Control.
7. device according to claim 6, it is characterised in that the threephase load includes：Load, in first phase line
The load in load and third phase line in two phase lines, wherein, the regulation and control unit is additionally operable to：
If the load that the load in first phase line is more than on load and the third phase line in second phase line is less than
Load in second phase line, then suspend and the first electric heating equipment in the load in first phase line directly supplied
Heat and pause carries out heat accumulation to the thermal store of first electric heating equipment, while in the load on the third phase line the
Two electric heating equipments carry out direct heating and the thermal store to second electric heating equipment carries out heat accumulation.
8. device according to claim 7, it is characterised in that described device also includes：
Second judging unit, after carrying out three-phase imbalance regulation and control for the threephase load in the designated area,
Judge whether the corresponding three-phase imbalance angle value of the threephase load in the designated area after regulation and control is reduced to described pre-
Below the tri-phase unbalance factor threshold value for first setting；
Recovery unit, for where it has, first electric heating equipment and second electricity that recover user's setting are adopted
The heating mode of heating equipment.
9. device according to claim 7, it is characterised in that the regulation and control unit is additionally operable to：
If the load that the load in first phase line is more than on load and the third phase line in second phase line is less than
Load in second phase line, then to monitor terminal send three-phase imbalance regulation and control instruction so that the monitor terminal according to
The three-phase imbalance regulation and control instruction performs following control manipulation：
Pause carries out direct heating to the first electric heating equipment in the load in first phase line and pause is to described first
The thermal store of electric heating equipment carries out heat accumulation, while being carried out directly to the second electric heating equipment in the load on the third phase line
Connect heat supply and the thermal store to second electric heating equipment carries out heat accumulation.
10. device according to claim 7, it is characterised in that the collecting unit is additionally operable to：
Gather the corresponding voltage signal parameter of the targeted loads and/or current signal parameter.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256723A (en) * | 2017-11-27 | 2018-07-06 | 国网河北省电力公司经济技术研究院 | Coal changes the assessment of economic benefit method and terminal device for being electrically accessed power grid |
| CN108832642A (en) * | 2018-06-29 | 2018-11-16 | 广东电网有限责任公司 | A kind of regulator control system and judgment method for transmission line of electricity three-phase imbalance |
| CN110896223A (en) * | 2018-09-12 | 2020-03-20 | 广达电脑股份有限公司 | Method and system for current balancing of three-phase power supply |
| CN111561735A (en) * | 2020-06-05 | 2020-08-21 | 长春工业大学 | Load side three-phase power self-balancing method for electric heating control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092229A (en) * | 2014-07-14 | 2014-10-08 | 山东卓尔电气有限公司 | Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device |
| CN104852396A (en) * | 2015-05-07 | 2015-08-19 | 陈鸽 | Power load balancing method and device for low-voltage power distribution network |
| CN105449700A (en) * | 2015-12-30 | 2016-03-30 | 北京四方继保自动化股份有限公司 | Balance control system and method of three-phase active unbalanced loads of isolated grid generator |
| CN105591396A (en) * | 2016-02-29 | 2016-05-18 | 国家电网公司 | Low-voltage distribution line distribution transformer three-phase unbalance protection method and device |
-
2016
- 2016-12-13 CN CN201611146905.5A patent/CN106786678A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092229A (en) * | 2014-07-14 | 2014-10-08 | 山东卓尔电气有限公司 | Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device |
| CN104852396A (en) * | 2015-05-07 | 2015-08-19 | 陈鸽 | Power load balancing method and device for low-voltage power distribution network |
| CN105449700A (en) * | 2015-12-30 | 2016-03-30 | 北京四方继保自动化股份有限公司 | Balance control system and method of three-phase active unbalanced loads of isolated grid generator |
| CN105591396A (en) * | 2016-02-29 | 2016-05-18 | 国家电网公司 | Low-voltage distribution line distribution transformer three-phase unbalance protection method and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256723A (en) * | 2017-11-27 | 2018-07-06 | 国网河北省电力公司经济技术研究院 | Coal changes the assessment of economic benefit method and terminal device for being electrically accessed power grid |
| CN108832642A (en) * | 2018-06-29 | 2018-11-16 | 广东电网有限责任公司 | A kind of regulator control system and judgment method for transmission line of electricity three-phase imbalance |
| CN110896223A (en) * | 2018-09-12 | 2020-03-20 | 广达电脑股份有限公司 | Method and system for current balancing of three-phase power supply |
| CN111561735A (en) * | 2020-06-05 | 2020-08-21 | 长春工业大学 | Load side three-phase power self-balancing method for electric heating control system |
| CN111561735B (en) * | 2020-06-05 | 2021-10-01 | 长春工业大学 | Load side three-phase power self-balancing method for electric heating control system |
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