CN110190613A - Distribution regulating device and distribution adjusting method - Google Patents
Distribution regulating device and distribution adjusting method Download PDFInfo
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- CN110190613A CN110190613A CN201910596290.3A CN201910596290A CN110190613A CN 110190613 A CN110190613 A CN 110190613A CN 201910596290 A CN201910596290 A CN 201910596290A CN 110190613 A CN110190613 A CN 110190613A
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- 230000005611 electricity Effects 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000001932 seasonal effect Effects 0.000 description 8
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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 distribution regulating device and distribution adjusting method that the embodiment of the present invention provides, are related to power electronics field.The distribution regulating device includes multiple accumulators and multiple current collectors, one end of multiple accumulators is electrically connected between distribution transformer and targeted loads, and the branch road that each phase of distribution transformer is formed with targeted loads is provided with a tie point, tie point is electrically connected with one of in multiple accumulators, one of them in multiple current collectors is set on the route between tie point and targeted loads, and multiple current collectors are electrically connected with multiple accumulators one-to-one correspondence；Current collector acquires the current information that wherein an opposite targeted loads provide of distribution transformer in real time；If the corresponding current value of current information is not less than the first pre-set current value, accumulator provides compensation electric current to targeted loads.The power supply reliability and service life of distribution transformer can be improved by the distribution regulating device.
Description
Technical field
The present invention relates to power electronics fields, in particular to a kind of distribution regulating device and distribution adjusting side
Method.
Background technique
Due to the variation in season, demand of the resident to electricity consumption can be different, therefore seasonal mistake can be caused to distribution transformer
The problem of load.Current seasonal overload Management strategy is usually that expansion distribution transformer capacity or three-phase grid energy storage feed are mended
It repays, can be in normal duty power using the strategy for expanding distribution transformer capacity, platform varying load rate is too low, and not can solve and match
The problem of piezoelectric transformer three-phase current unbalance.It is carried out using the strategy of three-phase grid energy storage feed compensation to distribution transformer
When feed compensation, the electric current to the compensation of every phase is identical amplitude, not can solve asking for distribution transformer three-phase current unbalance
Topic.
Summary of the invention
The purpose of the present invention includes, for example, providing a kind of distribution regulating device and distribution adjusting method, can solve
When certainly distribution transformer seasonality is overloaded, the problem of also can solve distribution transformer three-phase current unbalance.
The embodiment of the present invention this can be implemented so that
In a first aspect, the embodiment of the present invention provides a kind of distribution regulating device, including multiple accumulators and multiple electric currents are adopted
One end of storage, the multiple accumulator is electrically connected between distribution transformer and targeted loads, and the distribution transformer
The branch road that is formed with the targeted loads of each phase be provided with a tie point, the tie point is used for and the multiple storage
Can one of electrical connection in device, the multiple electric current is set on the route between the tie point and the targeted loads and is adopted
One of them in storage, the multiple current collector are electrically connected with the multiple accumulator one-to-one correspondence；The electric current is adopted
Storage is used to acquire the current information that wherein the opposite targeted loads provide of the distribution transformer in real time, and will be described
Current information is transmitted to the accumulator；The accumulator is used for the corresponding current value of the current information and the first default electricity
Flow valuve is compared, if the corresponding current value of the current information is not less than first pre-set current value, to the target
Load provides compensation electric current.
In alternative embodiments, position of the tie point on the branch road and the targeted loads are at a distance of default
Distance.
In alternative embodiments, the accumulator uses energy accumulation current converter.
In alternative embodiments, the current collector is using opening current acquisition mutual inductor.
Second aspect, the embodiment of the present invention provide a kind of distribution adjusting method, are applied to accumulator, multiple accumulators
One end be electrically connected between distribution transformer and targeted loads, and each phase of the distribution transformer and the target are negative
It carries the branch road formed and is provided with a tie point, the tie point with one of them in multiple accumulators for being electrically connected
Connect, be provided with current collector on the route between the tie point and the targeted loads, multiple current collectors with
Multiple accumulators correspond electrical connection, and the current collector is used to acquire wherein the one of the distribution transformer in real time
The current information that the opposite targeted loads provide, which comprises receive the electric current that the current collector is sent
Information, and obtain the corresponding current value of the current information；If the corresponding current value of the current information is default not less than first
Current value then provides compensation electric current to the targeted loads.
In alternative embodiments, the step of accumulator provides compensation electric current to the targeted loads includes: root
The compensation electric current is calculated according to the corresponding current value of the current information, first pre-set current value.
In alternative embodiments, the compensation electric current is calculated by using the following formula:
Imse=ImL-Imset；
Wherein, the ImL indicates that the corresponding current value of the current information, the Imset indicate the described first default electricity
Flow valuve.
In alternative embodiments, any one phase and institute of first pre-set current value according to the distribution transformer
The rated current of branch and the rated current for the accumulator being electrically connected with the branch for stating targeted loads formation are calculated.
In alternative embodiments, first pre-set current value is calculated by using the following formula:
Imset=e*Ime-Imc；
Wherein, the e indicates that margin parameter, the Ime indicate any one phase and the target of the distribution transformer
Load the rated current of the branch formed；The Imc indicates the rated current for the accumulator being electrically connected with the branch.
In alternative embodiments, the distribution adjusting method further include: if the corresponding current value of the current information
Lower than first pre-set current value, then it is in standby or in charged state.
The distribution regulating device and distribution adjusting method of the embodiment of the present invention have the advantages that by becoming in distribution
Branch that each phase of depressor is formed with targeted loads road is provided with a tie point, the tie point be used for in multiple accumulators
One of electrical connection, wherein one in multiple current collectors is arranged on the route between the tie point and targeted loads
It is a；The current information of a wherein opposite targeted loads offer of the current collector for acquiring distribution transformer in real time, and will be electric
Stream information is transmitted to accumulator；Accumulator is for comparing the corresponding current value of the current information with the first pre-set current value
Compared with if the corresponding current value of current information is not less than the first pre-set current value, to targeted loads offer compensation electric current.As it can be seen that
In a certain opposite targeted loads power supply of distribution transformer, if there are overload situations, the branch mutually formed with targeted loads
The problem of accumulator of upper electrical connection provides compensation electric current, just can solve distribution transformer seasonality overload.Simultaneously as distribution
The branch that each phase of transformer is powered with targeted loads, which respectively corresponds, is electrically connected with accumulator, the storage of each branch electrical connection
Energy device can be corresponding to provide different compensation electric currents according to the practical overload situations for the branch being correspondingly connected with, and enables to distribution
Three-Phase Transformer electric current is in equilibrium state.The seasonal overload of distribution transformer was both can solve by a set of distribution regulating device
Problem, moreover it is possible to solve the problems, such as the three-phase current unbalance of distribution transformer, it is not only at low cost, power supply reliability is also improved,
Extend the service life of distribution transformer.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the application environment schematic diagram of distribution regulating device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of distribution regulating device provided in an embodiment of the present invention；
Fig. 3 is another structural schematic diagram of distribution regulating device provided in an embodiment of the present invention；
Fig. 4 is a kind of flow diagram of distribution adjusting method provided in an embodiment of the present invention；
Fig. 5 is another flow diagram of distribution adjusting method provided in an embodiment of the present invention.
Icon: 10- matches electric regulating system；100- distribution regulating device；110- accumulator；120- current collector；130-
Branch；140- tie point；200- distribution transformer；300- load；310- targeted loads.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if there is the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be combined with each other.
Referring to FIG. 1, for the environment schematic of the distribution regulating device 100 present embodiments provided, which adjusts dress
It sets 100 to be applied to electric regulating system 10, further includes distribution transformer 200 with electric regulating system 10.Distribution regulating device 100 is set
It sets between distribution transformer 200 and load 300, distribution transformer 200 can be simultaneously to multiple 300 power supplies of load, i.e. distribution
The three phase line of transformer 200 and multiple loads 300 form multiple branches, the three phase line of distribution transformer 200
The multiple roads formed with multiple loads 300 are provided with distribution regulating device 100.Pass through 100 energy of distribution regulating device
It enough monitors the practical overload situations of each branch in real time, provides different compensation electric currents for each branch correspondence.Matched by a set of
Electric regulating device 100 both can solve the seasonal overload problem of distribution transformer 200, moreover it is possible to solve the three of distribution transformer 200
The unbalanced problem of phase current.It is not only at low cost, power supply reliability is also improved, extend distribution transformer 200 uses the longevity
Life.
Since three phase line of the distribution regulating device 100 to distribution transformer 200 loads the every of 300 formation with multiple
The working principle of a branch is all the same, and the three-phase that distribution transformer 200 only is arranged in electric regulating device in the present embodiment is defeated
Three branches that electric line is formed with targeted loads are described in detail, and wherein targeted loads are one in multiple loads 300.
It referring to figure 2. and Fig. 3, is the schematic diagram of distribution regulating device 100, which includes multiple 110 Hes of accumulator
Multiple current collectors 120, one end of multiple accumulators 110 be electrically connected to distribution transformer 200 and targeted loads 310 it
Between, and it is provided with tie point 140 on the branch 130 that is formed with targeted loads 310 of each phase of distribution transformer 200, it connects
Point 140 with one of in multiple accumulators 110 for being electrically connected, on the route between tie point 140 and targeted loads 310
One of them in multiple current collectors 120 is set, and multiple current collectors 120 correspond electricity with multiple accumulators 110
Connection.
In the present embodiment, a wherein opposite target of the current collector 120 for acquiring distribution transformer 200 in real time is negative
310 current informations provided are provided, and current information is transmitted to accumulator 110.Accumulator 110 is used for the current information is corresponding
Current value be compared with the first pre-set current value, if the corresponding current value of current information be not less than the first pre-set current value,
Then compensation electric current is provided to targeted loads 310.
It is appreciated that the A phase of distribution transformer 200, B phase and C phase and targeted loads 310 can be respectively formed three branches
130, multiple accumulators 110 include the first accumulator, the second accumulator and third accumulator, and multiple current collectors 120 include
First current collector, the second current collector and third current collector.The A phase and targeted loads 310 of distribution transformer 200
The first tie point is provided on the branch 130 of formation, for being electrically connected with one end of the first accumulator, first connects the first tie point
The first current collector is provided on route between contact and targeted loads 310；The B phase and target of distribution transformer 200 are negative
It carrying and is provided with the second tie point on the branch 130 that 310 form, the second tie point is used to be electrically connected with one end of the second accumulator,
The second current collector is provided on route between second tie point and targeted loads 310；The C phase of distribution transformer 200 with
Third tie point is provided on the branch 130 that targeted loads 310 are formed, third tie point is used for and one end of third accumulator electricity
It connects, is provided with third current collector on the route between third tie point and targeted loads 310.
Wherein, the opposite targeted loads 310 of A of first current collector for acquiring distribution transformer 200 in real time provide
First current information, and the first current information is transmitted to the first accumulator；First accumulator is used for the first current information pair
The current value answered is compared with the first pre-set current value, if the corresponding current value of the first current information is not less than the first default electricity
Flow valuve, the first accumulator then provide the first compensation electric current to targeted loads 310.Second current collector for acquiring distribution in real time
The second current information that the opposite targeted loads 310 of the B of transformer 200 provide, and the second current information is transmitted to the second energy storage
Device；Second accumulator is for the corresponding current value of the second current information to be compared with the first pre-set current value, if the second electricity
The corresponding current value of stream information is not less than the first pre-set current value, and the second accumulator then provides the second compensation to targeted loads 310
Electric current.The third electric current that the opposite targeted loads 310 of C of the third current collector for acquiring distribution transformer 200 in real time provide
Information, and third current information is transmitted to third accumulator；Third accumulator is used for the corresponding electric current of third current information
Value is compared with the first pre-set current value, if the corresponding current value of third current information is not less than the first pre-set current value, the
Three accumulators then provide third to targeted loads 310 and compensate electric current.
It is appreciated that current information includes the first current information, the second current information and third current information, electric current is compensated
Electric current is compensated including the first compensation electric current, the second compensation electric current and third.Since targeted loads 310 are to the A of distribution transformer 200
The electrical energy demands and targeted loads 310 that electrical energy demands, the targeted loads 310 mutually provided provide the B phase of distribution transformer 200 are right
The electrical energy demands that the C phase of distribution transformer 200 provides under normal circumstances can't be just the same.So the first current collector is adopted
The third electricity of first current information of collection, the second current information of the second current collector acquisition and the acquisition of third current collector
Stream information will not be identical, then corresponding the first compensation electric current provided of the first accumulator, corresponding second provided of the second accumulator
It compensates electric current and the corresponding third compensation electric current provided of third accumulator will not be identical.
As it can be seen that by being electrically connected with accumulator 110 in each branch 130 and each branch 130 is provided with current acquisition
Device 120 can monitor the practical overload situations of each branch 130 in real time, provide corresponding compensation electric current for each branch 130.
While solving the seasonal overload problem of distribution transformer 200, moreover it is possible to so that 200 three-phase current of distribution transformer is in flat
Weighing apparatus state.
In the present embodiment, accumulator 110 is calculated according to the corresponding current value of current information, the first pre-set current value
Compensate electric current.It is appreciated that the first electric current that the first accumulator is provided according to the opposite targeted loads 310 of A of distribution transformer 200
Information and the first pre-set current value are calculated the first compensation electric current, and the second accumulator is according to the opposite mesh of B of distribution transformer 200
The second compensation electric current, third accumulator root is calculated in the second current information and the first pre-set current value that mark load 310 provides
The third current information and the first pre-set current value provided according to the opposite targeted loads 310 of the C of distribution transformer 200 is calculated the
Three compensation electric currents.
Specifically, compensation electric current can be calculated by using the following formula:
Imse=ImL-Imset；
Wherein, ImL indicates that the corresponding current value of current information, Imset indicate the first pre-set current value.
It is appreciated that when the first accumulator is according to the first electricity of the opposite offer of targeted loads 310 of A of distribution transformer 200
When the first compensation electric current is calculated in stream information and the first pre-set current value, ImL indicates the corresponding current value of the first current information；
When the second current information and the first default electricity that the second accumulator is provided according to the opposite targeted loads 310 of B of distribution transformer 200
When the second compensation electric current is calculated in flow valuve, ImL indicates the corresponding current value of the second current information；When third accumulator is according to matching
Third benefit is calculated in the third current information and the first pre-set current value that the opposite targeted loads 310 of the C of piezoelectric transformer 200 provide
When repaying electric current, ImL indicates the corresponding current value of third current information.
In the present embodiment, the first pre-set current value can be according to any one phase and targeted loads of distribution transformer 200
310 rated current of branch 130 formed and the rated current for the accumulator 110 being electrically connected with branch 130 are calculated.
It is appreciated that when the first accumulator is according to the first electricity of the opposite offer of targeted loads 310 of A of distribution transformer 200
When the first compensation electric current is calculated in stream information and the first pre-set current value, the first pre-set current value is according to distribution transformer 200
The rated current of branch 130 that is formed with targeted loads 310 of A phase and the rated current of the first accumulator be calculated.When
The second current information and the first pre-set current value that two accumulators are provided according to the opposite targeted loads 310 of B of distribution transformer 200
When the second compensation electric current is calculated, the first pre-set current value is formed according to the B phase and targeted loads 310 of distribution transformer 200
The rated current of branch 130 and the rated current of the second accumulator be calculated.When third accumulator is according to distribution transformer
Third compensation electric current is calculated in the third current information and the first pre-set current value that the opposite targeted loads 310 of 200 C provide
When, the rated current for the branch 130 that the first pre-set current value is formed according to the C phase of distribution transformer 200 and targeted loads 310 and
The rated current of third accumulator is calculated.
Specifically, the first pre-set current value can be calculated by using the following formula:
Imset=e*Ime-Imc；
Wherein, e indicates that margin parameter, Ime indicate what any one phase of distribution transformer 200 was formed with targeted loads 310
The rated current of branch 130；Imc indicates the rated current for the accumulator 110 being electrically connected with branch 130.
It is appreciated that when the first pre-set current value is according to the branch of A phase and targeted loads 310 formation of distribution transformer 200
When the rated current on road 130 and the rated current of the first accumulator are calculated, Ime indicates the A phase and mesh of distribution transformer 200
The rated current for the branch 130 that mark load 310 is formed, Imc indicate the rated current of the first accumulator.When the first pre-set current value
The rated current of the branch 130 formed according to the B phase of distribution transformer 200 and targeted loads 310 and the second accumulator it is specified
When electric current is calculated, Ime indicates the rated current for the branch 130 that the B phase of distribution transformer 200 and targeted loads 310 are formed,
Imc indicates the rated current of the second accumulator.When the first pre-set current value is according to the C phase and targeted loads of distribution transformer 200
When 310 rated current of branch 130 formed and the rated current of third accumulator are calculated, Ime indicates distribution transformer
The rated current for the branch 130 that 200 C phase and targeted loads 310 is formed, Imc indicate the rated current of third accumulator.
Wherein, the rated current for the branch 130 that the A phase Yu targeted loads 310 of distribution transformer 200 are formed, distribution transformer
The rated current for the branch 130 that the B phase of device 200 is formed with targeted loads 310 and the C phase of distribution transformer 200 and target are negative
The rated current for carrying the branch 130 that 310 form may be the same or different.The rated current of first accumulator, the second energy storage
The rated current of device and the rated current of third accumulator may be the same or different.
When in the present embodiment, in order to guarantee that each branch 130 overloads, accumulator 110 has certain reaction time,
Margin parameter e can be set to 80%.Of course, it is possible to be set according to the actual situation to margin parameter e, do not limit herein
It is fixed.
Further, in the present embodiment, accumulator 110 is used for the corresponding current value of current information and the first default electricity
When flow valuve is compared, if the corresponding current value of current information is lower than the first pre-set current value, accumulator 110 is in standby shape
State or charged state.
It is appreciated that the opposite target of A for the distribution transformer 200 that the first accumulator is used to acquire the first current collector
The first current information that load 310 provides is compared with the first pre-set current value, if the corresponding current value of the first current information
Lower than the first pre-set current value, the first accumulator is then in standby or charged state.First accumulator is in standby
It is to be understood that the first accumulator does not provide the first compensation electric current to targeted loads 310, distribution transformer will not be received
The electric energy that 200 A phase provides.First accumulator is in charged state it is to be understood that the first accumulator receives distribution transformer
The electric energy that 200 A phase provides charges.
Second accumulator is for proposing the opposite targeted loads 310 of the B for the distribution transformer 200 that the second current collector acquires
The second current information supplied is compared with the first pre-set current value, if the corresponding current value of the second current information is pre- lower than first
If current value, the second accumulator is then in standby or charged state.Second accumulator be in standby it is to be understood that
Second accumulator does not provide the second compensation electric current to targeted loads 310, and the B phase that will not receive distribution transformer 200 provides
Electric energy.Second accumulator is in charged state it is to be understood that the B phase that the second accumulator receives distribution transformer 200 provides
Electric energy charge.
Third accumulator is for proposing the opposite targeted loads 310 of the C for the distribution transformer 200 that third current collector acquires
The third current information of confession is compared with the first pre-set current value, if the corresponding current value of third current information is pre- lower than first
If current value, third accumulator is then in standby or charged state.Third accumulator be in standby it is to be understood that
Third accumulator does not provide third to targeted loads 310 and compensates electric current, and the C phase that will not receive distribution transformer 200 provides
Electric energy.Third accumulator is in charged state it is to be understood that the C phase that third accumulator receives distribution transformer 200 provides
Electric energy charge.
In the present embodiment, current collector 120 is arranged on the route between tie point 140 and targeted loads 310,
So that the wherein opposite targeted loads 310 that the current information that current collector 120 acquires is distribution transformer 200 provide.
If current collector 120 is arranged on the route between tie point 140 and distribution transformer 200, then current collector 120
The current information of acquisition may be that a wherein opposite multiple loads 300 for distribution transformer 200 provide, it is also possible to distribution
What a wherein opposite targeted loads 310 for transformer 200 and the accumulator 110 being electrically connected on the branch 130 provided.
In the present embodiment, position of the tie point 140 on branch 130 and targeted loads 310 are at a distance of pre-determined distance.Its
In, pre-determined distance can be 500m, or 200m herein and is not construed as limiting.But it in the present embodiment, is preferable over 200m,
At a distance of 200m between tie point 140 and load 300 on i.e. each branch 130.By on each branch 130 tie point 140 with
The distance between load 300 is set as 200m, so that the seasonal mistake of 100 pairs of distribution regulating device solution distribution transformers 200
It carries and the effect of three-phase current unbalance is best.
Further, in the present embodiment, accumulator 110 can use energy accumulation current converter (Power Conversion
System, PCS), energy accumulation current converter is made of DC/AC bidirectional converter (not shown), control unit (not shown) etc..Control is single
A wherein opposite targeted loads 310 for real-time acquisition distribution transformer 200 of the member for receiving the transmission of current collector 120 provide
Current information, and the corresponding current value of the current information is compared with the first pre-set current value, if current information is corresponding
Current value be not less than the first pre-set current value, control unit then control DC/AC bidirectional converter to targeted loads 310 provide benefit
Repay electric current.If the corresponding current value of current information is lower than the first pre-set current value, control unit controls DC/AC bidirectional converter
It is in standby or charged state.Wherein, standby mode refers to that i.e. DC/AC bidirectional converter does not mention to targeted loads 310
For compensating electric current, the electric energy for also not receiving the offer of distribution transformer 200 charges；Charged state refers to DC/AC Bidirectional variable-flow
Device receives the electric energy that distribution transformer 200 provides and charges.
Further, in the present embodiment, current collector 120 can be using opening current acquisition mutual inductor, can also be with
Using Hall sensor.In the present embodiment, it is preferable over opening current acquisition mutual inductor.When current collector 120 is using opening
When current acquisition mutual inductor, current acquisition mutual inductor is the tie point 140 being sheathed on each branch 130 and targeted loads 310
Between route on.
In the present embodiment, in order to also can solve distribution transformer when solving the seasonal overload of distribution transformer 200
The problem of 200 three-phase current unbalance of device.In the following, being carried out based on Fig. 4 to distribution adjusting method provided in an embodiment of the present invention detailed
Thin to illustrate, which is applied to accumulator 110, and this method specifically includes that
Step S101 receives the current information that current collector is sent, and obtains the corresponding current value of current information.
Step S102, judges whether the corresponding current value of current information is lower than the first pre-set current value.
Step S103 is provided if the corresponding current value of current information is not less than the first pre-set current value to targeted loads
Compensate electric current.
In the present embodiment, step S101 to S103 can be retouched with the function of aforementioned currents collector 120 and accumulator 110
It is corresponding to state content, therefore does not refer to part, it can be with reference to the corresponding of the function of aforementioned currents collector 120 and accumulator 110 description
Content.
Further, referring to figure 5., in the present embodiment, distribution adjusting method is further comprising the steps of:
Step S104 is in standby or locates if the corresponding current value of current information is lower than the first pre-set current value
In charged state.
In the present embodiment, step S104 can be corresponding with the function description content of aforementioned accumulator 110, therefore does not refer to portion
Point, the corresponding contents that can be described with reference to the function of aforementioned accumulator 110.
In conclusion the embodiment of the invention provides a kind of distribution regulating device and distribution adjusting methods, by distribution
The branch road that each phase of transformer is formed with targeted loads is provided with a tie point, which is used for and multiple accumulators
In one of electrical connection, wherein one in multiple current collectors is arranged on the route between the tie point and targeted loads
It is a；The current information of a wherein opposite targeted loads offer of the current collector for acquiring distribution transformer in real time, and will be electric
Stream information is transmitted to accumulator；Accumulator is for comparing the corresponding current value of the current information with the first pre-set current value
Compared with if the corresponding current value of current information is not less than the first pre-set current value, to targeted loads offer compensation electric current.As it can be seen that
In a certain opposite targeted loads power supply of distribution transformer, when there are overload situations, the branch mutually formed with targeted loads
The problem of accumulator of upper electrical connection provides compensation electric current, just can solve distribution transformer seasonality overload.Simultaneously as distribution
The branch that each phase of transformer is powered with targeted loads, which respectively corresponds, is electrically connected with accumulator, the storage of each branch electrical connection
Energy device can be corresponding to provide different compensation electric currents according to the practical overload situations for the branch being correspondingly connected with, and enables to distribution
Three-Phase Transformer electric current is in equilibrium state.The seasonal overload of distribution transformer was both can solve by a set of distribution regulating device
Problem, moreover it is possible to solve the problems, such as the three-phase current unbalance of distribution transformer, it is not only at low cost, power supply reliability is also improved,
Extend the service life of distribution transformer.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of distribution regulating device, which is characterized in that including multiple accumulators and multiple current collectors, the multiple energy storage
One end of device is electrically connected between distribution transformer and targeted loads, and each phase of the distribution transformer and the target
It loads the branch road formed and is provided with a tie point, the tie point is used for and one of electricity in the multiple accumulator
It connects, one of them in the multiple current collector is set on the route between the tie point and the targeted loads,
The multiple current collector is electrically connected with the multiple accumulator one-to-one correspondence；
The current collector is used to acquire the electricity that wherein the opposite targeted loads provide of the distribution transformer in real time
Stream information, and the current information is transmitted to the accumulator；
The accumulator is for the corresponding current value of the current information to be compared with the first pre-set current value, if the electricity
The corresponding current value of stream information is not less than first pre-set current value, then provides compensation electric current to the targeted loads.
2. distribution regulating device as described in claim 1, which is characterized in that position of the tie point on the branch road with
The targeted loads are at a distance of pre-determined distance.
3. distribution regulating device as described in claim 1, which is characterized in that the accumulator uses energy accumulation current converter.
4. distribution regulating device as described in claim 1, which is characterized in that the current collector is using opening current acquisition
Mutual inductor.
5. a kind of distribution adjusting method, which is characterized in that be applied to accumulator, one end of multiple accumulators is electrically connected to
Between distribution transformer and targeted loads, and the branch road that each phase of the distribution transformer and the targeted loads are formed is equal
Be provided with a tie point, the tie point is used to be electrically connected with one of in multiple accumulators, the tie point with
Current collector, multiple current collectors and multiple accumulators one are provided on route between the targeted loads
One corresponding electrical connection, the current collector are used to acquire the wherein opposite targeted loads of the distribution transformer in real time
The current information of offer, which comprises
The current information that the current collector is sent is received, and obtains the corresponding current value of the current information；
If the corresponding current value of the current information is not less than the first pre-set current value, compensation electricity is provided to the targeted loads
Stream.
6. distribution adjusting method as claimed in claim 5, which is characterized in that the accumulator provides benefit to the targeted loads
The step of repaying electric current include:
The compensation electric current is calculated according to the corresponding current value of the current information, first pre-set current value.
7. distribution adjusting method as claimed in claim 6, which is characterized in that the compensation electric current is calculated using the following equation
It arrives:
Imse=ImL-Imset；
Wherein, the ImL indicates that the corresponding current value of the current information, the Imset indicate first pre-set current value.
8. distribution adjusting method as claimed in claim 5, which is characterized in that first pre-set current value is according to the distribution
The rated current for the branch that any one phase of transformer is formed with the targeted loads and the accumulator being electrically connected with the branch
Rated current be calculated.
9. distribution adjusting method as claimed in claim 8, which is characterized in that first pre-set current value uses following formula
It is calculated:
Imset=e*Ime-Imc；
Wherein, the e indicates that margin parameter, the Ime indicate any one phase and the targeted loads of the distribution transformer
The rated current of the branch of formation；The Imc indicates the rated current for the accumulator being electrically connected with the branch.
10. distribution adjusting method as claimed in claim 5, which is characterized in that the method also includes:
If the corresponding current value of the current information is lower than first pre-set current value, it is in standby or in charging
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596290.3A CN110190613B (en) | 2019-07-03 | Power distribution adjusting device and power distribution adjusting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910596290.3A CN110190613B (en) | 2019-07-03 | Power distribution adjusting device and power distribution adjusting method |
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| CN110190613B CN110190613B (en) | 2024-10-29 |
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