CN103928214B - A kind of double split reactor of twin columns being applied to current limiter - Google Patents
A kind of double split reactor of twin columns being applied to current limiter Download PDFInfo
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Abstract
A kind of double split reactor of twin columns being applied to current limiter, is made up of twin columns iron core or band air-gap iron core or air-core, left post coupling coil and right post coupling coil.Left post coupling coil and right post coupling coil are formed by interior loop and exterior loop, and the number of turn of inner-outer coil is identical or different, around on the contrary, and its input terminal and lead-out terminal lay respectively at the both sides up and down of interior loop and outside line coil.Left post interior loop input L1 and right post interior loop input R1 short circuit are as the input of the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input R3 connects, right post interior loop outfan R2 and left post exterior loop input L3, left post exterior loop outfan L4 and right post exterior loop outfan R4 short circuit are as the outfan of the double split reactor of twin columns.
Description
Technical field
The present invention relates to a kind of reactor being applied to current limiter field.
Background technology
Along with the fast development of national economy, the demand of electric power is continuously increased, has driven the development of power system by society,
Single-machine capacity and station capacity, substation capacity, city and center of industry load are continuously increased, and allow between power system
Interconnection, the short circuit current level in electrical networks at different levels improves constantly.While it is true, general way remains employing chopper to event
On the one hand barrier circuit cut-offs, protection power equipment, on the other hand also avoids owing to busbar voltage is too low and cause user not
Profit impact.Along with improving constantly of short circuit current level, it is necessary to improve constantly chopper cut-offs capacity.To this end, research people
The aspects such as the electromagnetism of chopper and frame for movement, contact material, arc-extinguishing medium have been carried out substantial amounts of research by member, and low-voltage alternating-current breaks
The capacity that cut-offs of road device has reached 125kA, is applied to the high pressure such as 220kV, 330kV, 500kV and ultrahigh voltage power system
The capacity that cut-offs of the AC circuit breaker of system has reached 75kA.But, that improves chopper further cut-offs capacity, not only in skill
In art the most more and more difficult, and cost also will increase substantially.Additionally, chopper can not be the most used in parallel.Therefore,
The off-capacity of cut-offfing of electric network fault short circuit current has increasingly becomed the important bottleneck problem limiting power network development.
Cut-offfing off-capacity in view of chopper, in recent years, the method for multiple restriction grid short circuit electric current also begins to be concerned
And application.The method limiting grid short circuit electric current mainly has: (1) improves line voltage；(2) untie electrical network to connect, including breaking
Open the connection between some transmission lines of electricity or double-bus.When short trouble occurs, back-up breaker can be closed and ensure power supply；(3)
Improve short-circuit of power transformer impedance；(4) installing current-limiting reactor；(5) installing fault current limiter.But, improve electricity
The cost of net electric pressure is the highest；Untie the method that electrical network connects, the power supply reliability of electrical network can be caused to be substantially reduced；Use height
Impedance transformer or current-limiting reactor be current limiting short-circuit current be the most also the most ripe scheme, but System Reactive Power need to be increased
And it is unfavorable for Power Network Transient Stability.In order to eliminate the shortcoming of current-limiting reactor, installing fault current limiter in electrical network can be used
This solution.Fault current limiter impedance under normal operation is the least, and when short trouble, impedance becomes current limliting greatly.
In view of existing high-voltage large-capacity mechanical switch and electronic power switch cut-off off-capacity, cannot be directly in parallel, fault limits
Stream device technology is the most immature, if constructing large capcity breaker or current limiter by a kind of mode being dirt cheap being currently able to, and will
There is the most positive meaning.In order to reduce the electric current flowing through switching device, Chinese invention patent 200610011904.X announces
A kind of superconductive failure current limiter based on close coupling reactor, Chinese invention patent 200710052947.7 and
201210252205.X individually disclose parallel circuit breaker based on close coupling reactor and current limiting circuit breaker, Chinese invention patent
201310007027.9 disclose series resonance-type current limiter based on close coupling reactor.The protection content of above-mentioned several patent is only
Relate to circuit topology, be not directed to concrete close coupling reactor.Chinese invention patent 200810197118.2,
200910208943.2 and paper (Du Yan, Chen Xuanshu, Liu Fei, Yin Ting. for the close coupling reactor design [J] of shunt trip breaker.
High-Voltage Technology, 2009,35 (11): 2870-2875) disclose a kind of tightly coupled air reactor being applied to shunt trip breaker
Structure, this tightly coupled air reactor use single-column structure, owing to being subjected to high voltage between inside and outside winding, in order to ensure foot
Enough insulation distances, there is some difference for the size of inside and outside winding, and therefore the coil inductance of different-diameter, resistance parameter are inconsistent
Thus cause two branch current skewness, and cause leakage inductance bigger.It addition, in order to ensure that two branch currents are distributed more
Uniformly, the leakage inductance of the tightly coupled air reactor of single-column structure is difficult to effectively be regulated by the turn ratio changing inside and outside winding, and
Single spur track inductance is not easy to do greatly, it is difficult to be applied to series resonance-type current limiter occasion.
Summary of the invention
In order to overcome existing common current-limiting reactor can increase System Reactive Power, existing single-column structure close coupling when steady-state operation
Double winding reactor is inconsistent thus cause CURRENT DISTRIBUTION uneven due to inside and outside winding parameter, and between inside and outside winding, voltage is the highest,
The shortcomings such as when single spur track runs leakage field is excessive, the present invention proposes the iron core of the double division of a kind of twin columns or band air-gap iron core or air-core electricity
Anti-device, compared with existing single-column double division air-core reactor, two branch currents more uniformly spread, the leakage field when single spur track runs
Less, leakage reactance is more easily adjusted by changing inside and outside umber of turn ratio.Use iron core or band air-gap iron core structure, the double division of twin columns
The single spur track inductance of reactor can also be made the biggest.The double split reactor of twin columns proposed based on the present invention, can be applicable to current limliting
Chopper and series resonance current limiter field.The double split reactor of twin columns in use, by single branch road and branch breaker or
Road rapid closing switch series connection, so can flow through the current reduction half of switch, it is easier to realize using low current switch to cut-off
Or limit big fault current.The double split reactor of the twin columns that the present invention proposes, flexibly, easily implements.Can be applicable to various difference
Electric pressure, different capabilities network system in.
To achieve these goals, the present invention is applied to the double split reactor of twin columns of current limiting circuit breaker and can use following two skill
Art scheme:
The twin columns of the first mode of connection double division air-core reactor is by left post coupling coil, right post coupling coil and branch breaker
Composition.Branch breaker is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil is by interior loop and outer
Coil forms, and the wire of inner-outer coil is around on the contrary, and its binding post is respectively left post interior loop input, and left post interior loop is defeated
Going out end, left post exterior loop input and left post exterior loop outfan, input terminal and lead-out terminal lay respectively at up and down the two of coil
Side: left post interior loop input and left post interior loop outfan lay respectively at the both sides up and down of left post interior loop, and left post exterior loop is defeated
Enter end and left post exterior loop outfan lays respectively at the both sides up and down of left post exterior loop.Right post coupling coil is also by interior loop and outside line
Circle composition, the wire of inner-outer coil is around on the contrary, and its binding post is respectively right post interior loop input, and right post interior loop exports
End, right post exterior loop input and right post exterior loop outfan, input terminal and lead-out terminal lay respectively at the both sides up and down of coil:
Right post interior loop input and right post interior loop outfan lay respectively at the both sides up and down of right post interior loop, right post exterior loop input
With the both sides up and down that right post exterior loop outfan lays respectively at right post exterior loop.Left post interior loop input and the input of left post interior loop
End short circuit connects as the input of the double split reactor of twin columns, left post interior loop outfan and right post exterior loop input, Zuo Zhu
Exterior loop outfan and right post interior loop input connect, and right post interior loop outfan and right post exterior loop outfan short circuit are as double
The outfan of the double split reactor of post.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric, thus ensure that two
The homogeneous current distribution of branch road, and in normal work or short circuiting work state, the most all there is the least leakage field, thus reduce
Installing space.
The twin columns of Second Linking Method mode double division air-core reactor is also to be broken by left post coupling coil, right post coupling coil and branch road
Road device composition.Branch breaker is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil is by interior loop
Forming with exterior loop, the wire of inner-outer coil is around on the contrary, and its binding post is respectively left post interior loop input, left post interior lines
Circle outfan, left post exterior loop input and left post exterior loop outfan, input terminal and lead-out terminal lay respectively at the upper of coil
Lower both sides: left post interior loop input and left post interior loop outfan lay respectively at the both sides up and down of left post interior loop, left post outside line
Circle input and left post exterior loop input lay respectively at the both sides up and down of left post exterior loop；Right post coupling coil also by interior loop and
Exterior loop forms, and the wire of inner-outer coil is around on the contrary, and its binding post is respectively right post interior loop input, right post interior loop
Outfan, right post exterior loop input and right post exterior loop outfan, input terminal and lead-out terminal lay respectively at the upper and lower of coil
Both sides: right post interior loop input and right post interior loop outfan lay respectively at the both sides up and down of right post interior loop, right post exterior loop
Input and right post exterior loop input lay respectively at the both sides up and down of right post exterior loop.Left post interior loop input and right post interior lines
Circle input short circuit is as the input of the double split reactor of twin columns, left post interior loop outfan and right post exterior loop input even
Connecing, right post interior loop outfan and left post exterior loop input, left post exterior loop outfan and right post exterior loop outfan short circuit are made
Outfan for the double split reactor of twin columns.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric, thus ensure
The homogeneous current distribution of two branch roads, and in normal work or short circuiting work state the most all there is the least leakage field, thus
Reduce installing space.Branch breaker is connected on left post exterior loop branch road or right post exterior loop outfan branch road, when normally working
For closure state.Unlike the first connected mode, owing to have employed left post exterior loop outfan and the output of right post exterior loop
End short circuit is as the output of the double split reactor of twin columns, and when branch breaker disconnects, higher port voltage undertakes in left and right two
Between post, rather than between inner-outer coil, therefore the insulation distance between inner-outer coil can reduce, and is more beneficial for reducing reactor
Volume and leakage reactance.
The present invention is applied to the double split reactor of twin columns of series resonance-type current limiter can use following four technical scheme:
The double split reactor of the low leakage reactance twin columns of the first mode of connection by twin columns iron core or band air-gap iron core, left post coupling coil,
Right post coupling coil and branch road rapid closing switch composition.Left post coupling coil is enclosed within the left post of twin columns iron core or band air-gap iron core,
Coaxial with iron core column, right post coupling coil is enclosed within the right post of twin columns iron core or band air-gap iron core, coaxial with iron core column；Branch road is quick
Closing switch is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil is by interior loop and exterior loop group
Becoming, the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively left post interior loop input, and left post interior loop exports
End, left post exterior loop input and left post exterior loop outfan, input and output side lays respectively at the both sides up and down of coil: left
Post interior loop input and left post interior loop outfan lay respectively at the both sides up and down of left post interior loop, left post exterior loop input and
Left post exterior loop outfan lays respectively at the both sides up and down of left post exterior loop.Right post coupling coil is also by interior loop and exterior loop group
Becoming, the wire of inner-outer coil is around on the contrary, and its binding post is respectively right post interior loop input, right post interior loop outfan,
Right post exterior loop input and right post exterior loop outfan, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: right
Post interior loop input and right post interior loop outfan lay respectively at the both sides up and down of right post interior loop, right post exterior loop input and
Right post exterior loop outfan lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input and left post interior loop input
Short circuit connects, outside left post as the input of the double split reactor of twin columns, left post interior loop outfan and right post exterior loop input
Coil output and right post interior loop input connect, and right post interior loop outfan and right post exterior loop outfan short circuit are as twin columns
The outfan of double split reactors.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric, thus ensure that two
The homogeneous current distribution on road, and in normal work or short circuiting work state, the most all there is the least leakage field, thus reduce peace
Dress space.Branch road rapid closing switch is connected on due to interior loop outfan branch road or right post exterior loop outfan branch road, normally
It it is closure state during work.
The double split reactor of the low leakage reactance twin columns of Second Linking Method mode is by twin columns iron core or band air-gap iron core or air-core, left post coupling
Zygonema circle, right post coupling coil and branch road rapid closing switch composition.Left post coupling coil is enclosed within twin columns iron core or band air-gap iron core
Left post, coaxial with iron core column, right post coupling coil is enclosed within the right post of twin columns iron core or band air-gap iron core, coaxial with iron core column；
Branch road rapid closing switch is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil is by interior loop and outer
Coil forms, and the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively left post interior loop input, left post interior lines
Circle outfan, left post exterior loop input and left post exterior loop outfan, input terminal and lead-out terminal lay respectively at the upper of coil
Lower both sides: left post interior loop input and left post interior loop outfan lay respectively at the both sides up and down of left post interior loop, left post outside line
Circle input and left post exterior loop input lay respectively at the both sides up and down of left post exterior loop.Right post coupling coil also by interior loop and
Exterior loop forms, and the wire of inner-outer coil is around on the contrary, and its binding post is respectively right post interior loop input, right post interior loop
Outfan, right post exterior loop input and right post exterior loop outfan, input terminal and lead-out terminal lay respectively at the upper and lower of coil
Both sides: right post interior loop input and right post interior loop outfan lay respectively at the both sides up and down of right post interior loop, right post exterior loop
Input and right post exterior loop input lay respectively at the both sides up and down of right post exterior loop.Left post interior loop input and right post interior lines
Circle input short circuit is as the input of the double split reactor of twin columns, left post interior loop outfan and right post exterior loop input even
Connecing, right post interior loop outfan and left post exterior loop input, left post exterior loop outfan and right post exterior loop outfan short circuit are made
Outfan for the double split reactor of twin columns.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric, thus ensure
The homogeneous current distribution of two branch roads, and in normal work or short circuiting work state the most all there is the least leakage field, thus
Reduce installing space.Branch breaker is connected on left post exterior loop branch road or right post exterior loop outfan branch road, when normally working
For closure state.Unlike the first connected mode, owing to have employed left post exterior loop outfan and the output of right post exterior loop
End short circuit is as the output of the double split reactor of twin columns, and when branch breaker disconnects, higher port voltage undertakes in left and right two
Between post, rather than between inner-outer coil, therefore the insulation distance between inner-outer coil can reduce, and is more beneficial for reducing reactor
Volume and leakage reactance.
In some cases, the double split reactors being applied to series resonance-type current limiter need higher leakage inductance, in order to increase leakage
Sense, the inside and outside winding using the different number of turn is a kind of well approach.Double division electricity with the low leakage reactance twin columns of the first mode of connection
Unlike anti-device, the left post exterior loop of the double split reactor of the high leakage reactance twin columns of the first mode of connection and the circle of left post interior loop
Number difference, the number of turn of right post exterior loop and right post interior loop is the most different, but left post exterior loop is identical with the number of turn of right post exterior loop,
Left post interior loop is the most identical with the number of turn of right post interior loop, so can ensure that two branch currents are uniformly distributed.Double points of high leakage reactance twin columns
Split reactor and may be used without the another kind of mode of connection.Split reactors double from the low leakage reactance twin columns of Second Linking Method mode are different
It is that the left post exterior loop of the double split reactor of the high leakage reactance twin columns of Second Linking Method mode is different with the number of turn of left post interior loop, right
The number of turn of post exterior loop and right post interior loop is the most different, but left post exterior loop is identical with the number of turn of right post exterior loop, left post interior lines
Enclose the most identical with the number of turn of right post interior loop, so can ensure that two branch currents are uniformly distributed.
It is applied to twin columns double split reactor branch breaker Guan Bi when properly functioning of current-limiting reactor, twin columns double division reactance
Device shows as Low ESR, cut-offs due to branch breaker when system burst short circuit, and total reactance value of device increases sharply, thus
Limiting short-circuit current, line-breaker is easier to disconnect.
The twin columns double split reactor branch road rapid closing switch when properly functioning being applied to series resonance current limiter disconnects, twin columns
Double split reactors show as high impedance, and whole series resonance current limiter shows as Low ESR, when system burst short circuit, and branch road
Rapid closing switch closes, and double split reactors show as Low ESR, and whole series resonance current limiter shows as high impedance, thus
Limiting short-circuit current, line-breaker is easier to disconnect.
The present invention has a following major advantage:
1) present invention current limiting circuit breaker based on the double split reactor of twin columns and series resonance current limiter when properly functioning to electrical network
Stable state impact little, System Reactive Power will not be increased, steady-state behaviour is better than existing current-limiting reactor；
2), compared with the double split reactor of twin columns of the present invention split reactor double with existing single-column, two branch currents more uniformly spread,
When steady-state operation, leakage field is less, leakage reactance is more easily adjusted by changing inside and outside umber of turn ratio；
3) present invention can be used for constructing jumbo chopper and current limiter.Use the double single branch road of split reactor of twin columns and prop up
The mode of circuit breaker or the series connection of branch road rapid closing switch will flow through the current reduction half of switch, thus reduce large-scale open circuit
Technical difficulty that device and current limiter make and cost, have more market competitiveness.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is the equivalent circuit diagram of present invention current limiting circuit breaker based on the double split reactor of twin columns；
Fig. 2 is the equivalent circuit diagram of present invention resonant current limiter based on the double split reactor of twin columns；
Fig. 3 is twin columns double division hollow reactance that the specific embodiment of the invention 1 is applied to the first mode of connection of current limiting circuit breaker
Device structure chart；
Fig. 4 is twin columns double division hollow reactance that the specific embodiment of the invention 1 is applied to the Second Linking Method mode of current limiting circuit breaker
Device structure chart；
Fig. 5 is the low leakage reactance twin columns pair that the specific embodiment of the invention 2 is applied to the first mode of connection of series resonance-type current limiter
Split reactor structure chart；
Fig. 6 is the low leakage reactance twin columns pair that the specific embodiment of the invention 2 is applied to the Second Linking Method mode of series resonance-type current limiter
Split reactor structure chart；
Fig. 7 is the high leakage reactance twin columns pair that the specific embodiment of the invention 3 is applied to the first mode of connection of series resonance-type current limiter
Split reactor structure chart；
Fig. 8 is the high leakage reactance twin columns pair that the specific embodiment of the invention 3 is applied to the Second Linking Method mode of series resonance-type current limiter
Split reactor structure chart.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings:
The present invention is applied to the double split reactor of twin columns in current limiting circuit breaker and series resonance current limiter field, and the present invention sends out in system
During raw short trouble, realize the failure current limit to whole piece circuit by the state change of the double split reactor of twin columns.
Fig. 1 show the equivalent circuit diagram of present invention current limiting circuit breaker based on the double split reactor of twin columns.Twin columns double division reactance
The self-induction of two branch road winding L1 and L2 of device is respectively L1And L2, mutual inductance is M.Owing to the double winding number of turn is identical, Same Name of Ends
On the contrary, therefore L1=L2, mutual inductance M and L1And L2Closely；First winding L1 elder generation and branch road of the double split reactor of twin columns
Chopper K connects, and the most again with the second winding L2 is in parallel, the double split reactor of last whole twin columns again with line-breaker D
Series connection.When power system is properly functioning, the reactance value of reactorIt is a least numerical value, to system shadow
Ringing the least, the current-carrying capacity of branch breaker K is the 50% of transmission line of electricity electric current.When power system is short-circuited fault, logical
Cross the parameter tuning of chopper, make branch breaker K first cut-off, the reactance value L '=L of reactor2, the short circuit current of system is fast
Speed declines, so that line-breaker D can be easy to disconnect.
Fig. 2 show the equivalent circuit diagram of present invention series resonance-type current limiter based on the double split reactor of twin columns.Double points of twin columns
The self-induction splitting two branch road winding L1 and L2 of reactor is respectively L1And L2, mutual inductance is M.Owing to the double winding number of turn is identical,
Same Name of Ends is contrary, therefore L1=L2, mutual inductance M and L1And L2Closely；First winding L1 of the double split reactor of twin columns
First connecting with branch road rapid closing switch K, the most again with the second winding L2 is in parallel；Electric capacity in series resonance-type current limiter circuit
Connect with reactor L again after device C and branch road rapid closing switch K parallel connection.When power system is properly functioning, the double division of twin columns
The reactance value L=L of reactor2, L can be made to be a biggest value by appropriate design, such electric current mainly forms from L and C
Series resonance branch road in flow through, the least to systematic influence；When short circuit is broken down in power system, the double split reactor of twin columns
Reactance becomeIt it is a least reactance value；Fault current transfers to the double division of twin columns from capacitor C branch road
Reactor, the impedance of series resonance-type current limiter increases and suppresses short circuit current, so that line-breaker D can be easy to break
Open.Branch road rapid closing switch K pass through short circuit current is total short circuit current 50%, so can use short-circuit current capability
The rapid closing switch of 50%, reliability and cost are substantially reduced.
Fig. 3 show twin columns double division hollow that the specific embodiment of the invention 1 is applied to the first mode of connection of current limiting circuit breaker
Reactor figure.The twin columns of the first mode of connection double division air-core reactor by left post coupling coil, right post coupling coil and
Branch breaker forms.Branch breaker is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil by
Interior loop and exterior loop composition, the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively left post interior loop input
L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop outfan L4, input terminal and defeated
Go out terminal and lay respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior loop outfan L2 lays respectively at a left side
The both sides up and down of post interior loop, left post exterior loop input L3 and left post exterior loop outfan L4 lay respectively at left post exterior loop
Both sides up and down.Right post coupling coil is also made up of interior loop and exterior loop, the wire of inner-outer coil around on the contrary, its binding post
It is respectively right post interior loop input R1, right post interior loop outfan R2, right post exterior loop input R3 and right post exterior loop
Outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: in right post interior loop input R1 and right post
Coil output R2 lays respectively at the both sides up and down of right post interior loop, right post exterior loop input R3 and the output of right post exterior loop
End R4 lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input L1 and left post exterior loop input L3 short circuit
As the input of the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input R3 connects, Zuo Zhu
Exterior loop outfan L4 and right post interior loop input R1 connects, right post interior loop outfan R2 and right post exterior loop outfan
R4 short circuit is as the outfan of the double split reactor of twin columns.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric,
Thus ensure that the homogeneous current distribution of two branch roads, and in normal work or short circuiting work state, the most all there is the least leakage
Magnetic, thus reduce installing space.Branch breaker K is connected on right post interior loop outfan R2 branch road or right post exterior loop is defeated
Go out to hold R4 branch road, be closure state during normal work.
Fig. 4 show twin columns double division hollow that the specific embodiment of the invention 1 is applied to the Second Linking Method mode of current limiting circuit breaker
Reactor figure.The twin columns of Second Linking Method mode double division air-core reactor by left post coupling coil, right post coupling coil and
Branch breaker K forms.Branch breaker is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil
Being made up of interior loop and exterior loop, the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively the input of left post interior loop
End L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop outfan L4, input terminal and
Lead-out terminal lays respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior loop outfan L2 lays respectively at
The both sides up and down of left post interior loop, left post exterior loop input L3 and left post exterior loop outfan L4 lay respectively at left post exterior loop
Both sides up and down.Right post coupling coil is also made up of interior loop and exterior loop, the wire of inner-outer coil around on the contrary, its terminals
Son is respectively right post interior loop input R1, right post interior loop outfan R2, right post exterior loop input R3 and right post outside line
Circle outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: right post interior loop input R1 and right post
Interior loop outfan R2 lays respectively at the both sides up and down of right post interior loop, and right post exterior loop input R3 and right post exterior loop are defeated
Go out to hold R4 to lay respectively at the both sides up and down of right post exterior loop.Left post interior loop input L1 and right post interior loop input R1 is short
Connecing the input as the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input R3 connects, right
Post interior loop outfan R2 and left post exterior loop input L3, left post exterior loop outfan L4 and right post exterior loop outfan R4
Short circuit is as the outfan of the double split reactor of twin columns.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric, from
And ensure that the homogeneous current distribution of two branch roads, and in normal work or short circuiting work state, the most all there is the least leakage
Magnetic, thus reduce installing space.Branch breaker K is connected on left post exterior loop outfan L4 branch road or right post exterior loop is defeated
Go out to hold R4 branch road, be closure state during normal work.Unlike the first connected mode, owing to have employed left post outside line
Enclose the output as the double split reactor of twin columns of outfan L4 and right post exterior loop outfan R4 short circuit, at branch breaker K
During disconnection, higher port voltage undertakes between the post of left and right two, rather than between inner-outer coil, therefore exhausted between inner-outer coil
Edge distance can reduce, and is more beneficial for reducing reactor volume and leakage reactance.
Fig. 5 show the low leakage reactance twin columns that the specific embodiment of the invention 2 is applied to the first mode of connection of series resonance current limiter
Double split reactor structure charts.The double split reactor of the low leakage reactance twin columns of the first mode of connection is by twin columns iron core or band air-gap iron core
Or air-core, left post coupling coil, right post coupling coil and branch road rapid closing switch K composition.Left post coupling coil is enclosed within double
Column iron core or the left post of band air-gap iron core, coaxial with iron core column, right post coupling coil is enclosed within twin columns iron core or the right side of band air-gap iron core
Post, coaxial with iron core column；Branch road rapid closing switch is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling
Zygonema circle is made up of interior loop and exterior loop, and the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively left post interior lines
Circle input L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop outfan L4, input
Terminal and lead-out terminal lay respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior loop outfan L2
Lay respectively at the both sides up and down of left post interior loop, left post exterior loop input L3 and left post exterior loop outfan L4 and lay respectively at a left side
The both sides up and down of post exterior loop.Right post coupling coil is also made up of interior loop and exterior loop, the wire of inner-outer coil around on the contrary,
Its binding post be respectively right post interior loop input R1, right post interior loop outfan R2, right post exterior loop input R3 and
Right post exterior loop outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: right post interior loop input
R1 and right post interior loop outfan R2 lays respectively at the both sides up and down of right post interior loop, right post exterior loop input R3 and right post
Exterior loop outfan R4 lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input L1 and the output of left post exterior loop
End L4 short circuit is as the input of the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input R3
Connecting, left post exterior loop outfan L4 and right post interior loop input R1 connects, outside right post interior loop outfan R2 and right post
Coil output R4 short circuit is as the outfan of the double split reactor of twin columns.Two branch resistance of the double split reactor of twin columns and electricity
Feel full symmetric, thus ensure that the homogeneous current distribution of two branch roads, and external the most all in normal work or short circuiting work state
There is the least leakage field, thus reduce installing space.Branch road rapid closing switch K is connected on right post interior loop outfan R2 and props up
Road or right post exterior loop outfan R4 branch road, be closure state during normal work.
Fig. 6 show the low leakage reactance twin columns that the specific embodiment of the invention 2 is applied to the Second Linking Method mode of series resonance current limiter
Double split reactor structure charts.The double split reactor of the low leakage reactance twin columns of Second Linking Method mode is by twin columns iron core or band air-gap iron core
Or air-core, left post coupling coil, right post coupling coil and branch road rapid closing switch K composition.Left post coupling coil is enclosed within double
Column iron core or the left post of band air-gap iron core, coaxial with iron core column, right post coupling coil is enclosed within twin columns iron core or the right side of band air-gap iron core
Post, coaxial with iron core column；Branch road rapid closing switch is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling
Zygonema circle is made up of interior loop and exterior loop, and the inner-outer coil number of turn is identical, and around on the contrary, its binding post is respectively left post interior lines
Circle input L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop outfan L4, input
Terminal and lead-out terminal lay respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior loop outfan L2
Lay respectively at the both sides up and down of left post interior loop, left post exterior loop input L3 and left post exterior loop outfan L4 and lay respectively at a left side
The both sides up and down of post exterior loop.Right post coupling coil is also made up of interior loop and exterior loop, the wire of inner-outer coil around on the contrary,
Its binding post be respectively right post interior loop input R1, right post interior loop outfan R2, right post exterior loop input R3 and
Right post exterior loop outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: right post interior loop input
R1 and right post interior loop outfan R2 lays respectively at the both sides up and down of right post interior loop, right post exterior loop input R3 and right post
Exterior loop outfan R4 lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input L1 and the input of right post interior loop
End R1 short circuit is as the input of the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input R3
Connect, right post interior loop outfan R2 and left post exterior loop input L3, left post exterior loop outfan L4 and right post exterior loop
Outfan R4 short circuit is as the outfan of the double split reactor of twin columns.Two branch resistance and the inductance of the double split reactor of twin columns are complete
Holohedral symmetry, thus ensure that the homogeneous current distribution of two branch roads, and the most all have in normal work or short circuiting work state
The least leakage field, thus reduce installing space.Branch breaker K is connected on left post exterior loop outfan L4 branch road or right post
Exterior loop outfan R4 branch road, is closure state during normal work.Unlike the first connected mode, owing to have employed
Left post exterior loop outfan L4 and right post exterior loop outfan R4 short circuit, as the output of the double split reactor of twin columns, break at branch road
When road device K disconnects, higher port voltage undertakes between the post of left and right two, rather than between inner-outer coil, therefore inner-outer coil it
Between insulation distance can reduce, be more beneficial for reducing reactor volume and leakage reactance.
Fig. 7 show the high leakage reactance twin columns that the specific embodiment of the invention 3 is applied to the first mode of connection of series resonance current limiter
Double split reactor structure charts.In some cases, the double split reactors being applied to series resonance-type current limiter need higher
Leakage inductance, in order to increase leakage inductance, the inside and outside winding using the different number of turn is a kind of well approach.The double split reactor of these twin columns by
Twin columns iron core or band air-gap iron core or air-core, left post coupling coil and right post coupling coil form.Left post coupling coil is enclosed within double
Column iron core or the left post of band air-gap iron core, coaxial with iron core column, right post coupling coil is enclosed within twin columns iron core or the right side of band air-gap iron core
Post, coaxial with iron core column；Branch road rapid closing switch is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling
Zygonema circle is made up of interior loop and exterior loop, and the inner-outer coil number of turn is different, and around on the contrary, its binding post is respectively left post interior lines
Circle input L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop outfan L4, input
Terminal and lead-out terminal lay respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior loop outfan L2
Lay respectively at the both sides up and down of left post interior loop, left post exterior loop input L3 and left post exterior loop outfan L4 and lay respectively at a left side
The both sides up and down of post exterior loop.Right post coupling coil is also made up of interior loop and exterior loop, and the inner-outer coil number of turn is different, around to phase
Instead, its binding post is respectively right post interior loop input R1, right post interior loop outfan R2, right post exterior loop input R3
With right post exterior loop outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: right post interior loop inputs
End R1 and right post interior loop outfan R2 lays respectively at the both sides up and down of right post interior loop, right post exterior loop input R3 and the right side
Post exterior loop outfan R4 lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input L1 and left post exterior loop are defeated
Enter to hold L3 short circuit as the input of the double split reactor of twin columns, left post interior loop outfan L2 and right post exterior loop input
R3 connects, and left post exterior loop outfan L4 and right post interior loop input R1 connects, right post interior loop outfan R2 and the right side
Post exterior loop outfan R4 short circuit is as the outfan of the double split reactor of twin columns.Left post exterior loop and the number of turn of left post interior loop
Difference, the number of turn of right post exterior loop and right post interior loop is the most different, but left post exterior loop is identical with the number of turn of right post exterior loop,
Left post interior loop is the most identical with the number of turn of right post interior loop.Two branch resistance and the inductance of the double split reactor of twin columns are full symmetric,
Thus ensure that the homogeneous current distribution of two branch roads.Rapid closing switch K be connected on due to interior loop outfan R2 branch road or
Right post exterior loop outfan R4 branch road, is off-state during normal work.Unlike specific embodiment 2, embodiment 3
In the post of middle left and right two, the number of turn of inner-outer coil is different, and the magnetic field that inner-outer coil produces can not fully be offset, thus increases leakage inductance.
Fig. 8 show the high leakage reactance twin columns that the specific embodiment of the invention 3 is applied to the Second Linking Method mode of series resonance current limiter
Double split cores or half iron core reactor structure chart.In some cases, double division reactance of series resonance-type current limiter it are applied to
Device needs higher leakage inductance, and in order to increase leakage inductance, the inner-outer coil using the different number of turn is a kind of well approach.These twin columns are double
Split reactor is made up of twin columns iron core or band air-gap iron core or air-core, left post coupling coil and right post coupling coil.Left post coupling
Zygonema snare is at twin columns iron core or the left post of band air-gap iron core, and coaxial with iron core column, right post coupling coil is enclosed within twin columns iron core or band
The right post of air-gap iron core, coaxial with iron core column；Branch road rapid closing switch is connected on left post coupling coil or right post coupling coil
Branch road；Left post coupling coil is made up of interior loop and exterior loop, and the inner-outer coil number of turn is different, and around on the contrary, its binding post divides
Not Wei left post interior loop input L1, left post interior loop outfan L2, left post exterior loop input L3 and left post exterior loop are defeated
Going out and hold L4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: left post interior loop input L1 and left post interior lines
Circle outfan L2 lays respectively at the both sides up and down of left post interior loop, left post exterior loop input L3 and left post exterior loop outfan
L4 lays respectively at the both sides up and down of left post exterior loop.Right post coupling coil is also made up of interior loop and exterior loop, inner-outer coil circle
Number difference, around on the contrary, its binding post is respectively right post interior loop input R1, right post interior loop outfan R2, right post
Exterior loop input R3 and right post exterior loop outfan R4, input terminal and lead-out terminal lay respectively at the both sides up and down of coil:
Right post interior loop input R1 and right post interior loop outfan R2 lays respectively at the both sides up and down of right post interior loop, right post outside line
Circle input R3 and right post exterior loop outfan R4 lays respectively at the both sides up and down of right post exterior loop.Left post interior loop input
L1 and right post interior loop input R1 short circuit as the input of the double split reactor of twin columns, left post interior loop outfan L2 and
Right post exterior loop input R3 connects, and right post interior loop outfan R2 and left post exterior loop input L3, left post exterior loop is defeated
Go out to hold L4 and right post exterior loop outfan R4 short circuit as the outfan of the double split reactor of twin columns.In left post exterior loop and left post
The number of turn of coil is different, and the number of turn of right post exterior loop and right post interior loop is the most different, but left post exterior loop and right post exterior loop
The number of turn is identical, and left post interior loop is the most identical with the number of turn of right post interior loop, two branch resistance of the double split reactor of twin columns and inductance
Full symmetric, thus ensure that the homogeneous current distribution of two branch roads.Branch road rapid closing switch K is connected on the output of left post exterior loop
End L4 branch road or right post exterior loop outfan R4 branch road, be off-state during normal work.Different from the first connected mode
, owing to have employed left post exterior loop outfan L4 and right post exterior loop outfan R4 short circuit as the double split reactor of twin columns
Output, when branch road rapid closing switch K disconnects, higher port voltage undertakes between the post of left and right two, rather than internal and external line
Between circle, therefore the insulation distance between inner-outer coil can reduce, and is more beneficial for reducing reactor volume and leakage reactance.With specifically
Unlike embodiment 2, in embodiment 3 in two posts of left and right, the number of turn of inner-outer coil is different, and the magnetic field that inner-outer coil produces is not
Can fully offset, thus increase leakage inductance.
Claims (5)
1. the double split reactor of the twin columns being applied to current limiter, it is characterised in that the double split reactor of described twin columns by
Twin columns iron core or band air-gap iron core or air-core, left post coupling coil, right post coupling coil, and branch breaker or branch road are fast
Speed closing switch (K) composition；Left post coupling coil is enclosed within the left post of twin columns iron core or band air-gap iron core, coaxial with iron core column,
Right post coupling coil is enclosed within the right post of twin columns iron core or band air-gap iron core, coaxial with iron core column；Branch breaker or branch road quickly close
Lock switch (K) is connected on left post coupling coil or the branch road of right post coupling coil；Left post coupling coil is by interior loop and exterior loop
Composition, the number of turn of interior loop and exterior loop is identical or different, wire around on the contrary, it is defeated that its binding post is respectively left post interior loop
Enter to hold (L1), left post interior loop outfan (L2), left post exterior loop input (L3) and left post exterior loop outfan (L4),
Left post interior loop input (L1) and left post interior loop outfan (L2) lay respectively at the both sides up and down of left post interior loop, Zuo Zhu
Exterior loop input (L3) and left post exterior loop outfan (L4) lay respectively at the both sides up and down of left post exterior loop；Right post couples
Coil is also made up of interior loop and exterior loop, and the wire of inner-outer coil is around on the contrary, and it is defeated that its binding post is respectively right post interior loop
Enter to hold (R1), right post interior loop outfan (R2), right post exterior loop input (R3) and right post exterior loop outfan (R4),
Right post interior loop input (R1) and right post interior loop outfan (R2) lay respectively at the both sides up and down of right post interior loop, right
Post exterior loop input (R3) and right post exterior loop outfan (R4) lay respectively at the both sides up and down of right post exterior loop.
The double split reactor of twin columns the most according to claim 1, it is characterised in that the double split reactor of described twin columns
When being applied to current limiting circuit breaker, the double split reactor of twin columns uses hollow core structures, the interior loop of left post coupling coil and the coupling of right post
The number of turn of the interior loop of coil is identical, and the exterior loop of left post coupling coil is identical with the number of turn of the exterior loop of right post coupling coil,
Use following connected mode: left post interior loop input (L1) and left post exterior loop input (L3) short circuit are as double points of twin columns
Split the input of reactor, left post interior loop outfan (L2) and right post exterior loop input (R3) to connect, left post exterior loop
Outfan (L4) and right post interior loop input (R1) connect, and right post interior loop outfan (R2) and right post exterior loop are defeated
Go out end (R4) short circuit outfan as the double split reactor of twin columns；Branch breaker (K) is connected on the output of right post interior loop
End (R2) branch road or right post exterior loop outfan (R4) branch road, be closure state during normal work.
The double split reactor of twin columns the most according to claim 1, it is characterised in that the double split reactor of described twin columns
When being applied to current limiting circuit breaker, the double split reactor of twin columns uses hollow core structures, the interior loop of left post coupling coil and the coupling of right post
The number of turn of the interior loop of coil is identical, and the exterior loop of left post coupling coil is identical with the number of turn of the exterior loop of right post coupling coil, adopts
By another kind of connected mode: left post interior loop input (L1) and right post interior loop input (R1) short circuit are as double points of twin columns
Split the input of reactor, left post interior loop outfan (L2) and right post exterior loop input (R3) to connect, right post interior loop
Outfan (R2) and left post exterior loop input (L3), left post exterior loop outfan (L4) and right post exterior loop outfan (R4)
Short circuit is as the outfan of the double split reactor of twin columns；Branch breaker (K) is connected on left post exterior loop outfan (L4)
Road or right post exterior loop outfan (R4) branch road, be closure state during normal work.
The double split reactor of twin columns the most according to claim 1, it is characterised in that the double split reactor of described twin columns
When being applied to series resonance current limiter, the double split reactor of twin columns uses iron core or band air-gap iron core or hollow core structures, and left post couples
The interior loop of coil and the number of turn of exterior loop are identical or different, and the interior loop of right post coupling coil is identical with the number of turn of exterior loop or not
With, use following connected mode: left post interior loop input (L1) and left post exterior loop input (L3) short circuit are as twin columns
The input of double split reactors, left post interior loop outfan (L2) and right post exterior loop input (R3) connect, outside left post
Coil output (L4) and right post interior loop input (R1) connect, right post interior loop outfan (R2) and right post outside line
Circle outfan (R4) short circuit is as the outfan of the double split reactor of twin columns；Branch road rapid closing switch (K) is connected on right post
Interior loop outfan (R2) branch road or right post exterior loop outfan (R4) branch road, be closure state during normal work.
The double split reactor of twin columns the most according to claim 1, it is characterised in that the double split reactor of described twin columns
When being applied to series resonance current limiter, the double split reactor of twin columns uses iron core or band air-gap iron core or hollow core structures, left post coupling
The interior loop of zygonema circle and the number of turn of exterior loop are identical or different, the interior loop of right post coupling coil identical with the number of turn of exterior loop or
Difference, the another kind of connected mode of employing: left post interior loop input (L1) and right post interior loop input (R1) short circuit conduct
The input of the double split reactor of twin columns, left post interior loop outfan (L2) and right post exterior loop input (R3) connect, right
Post interior loop outfan (R2) and left post exterior loop input (L3), left post exterior loop outfan (L4) and right post exterior loop
Outfan (R4) short circuit is as the outfan of the double split reactor of twin columns；Branch road rapid closing switch (K) is connected on outside left post
Coil output (L4) branch road or right post exterior loop outfan (R4) branch road, be off-state during normal work.
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| CN105207190B (en) * | 2015-10-12 | 2017-10-10 | 华北电力大学 | It is a kind of to increase reactance type same tower double back transmission line fault demand limiter certainly |
| CN105428040B (en) * | 2015-11-30 | 2017-06-16 | 许继集团有限公司 | A kind of iron core type split reactor |
| CN105958431A (en) * | 2016-06-07 | 2016-09-21 | 广州供电局有限公司 | Protection device for limiting fault current on low voltage side of transformer |
| CN109038525B (en) * | 2018-09-26 | 2020-06-09 | 西安西电电气研究院有限责任公司 | Power system and current limiting device thereof |
| CN111384709B (en) * | 2020-03-09 | 2022-04-26 | 中国科学院电工研究所 | High-voltage high-capacity split reactance type current limiter |
| CN111404132A (en) * | 2020-03-23 | 2020-07-10 | 北京交通大学 | Adjustable inductance solenoid type superconducting current limiter |
| CN111525501B (en) * | 2020-05-28 | 2022-05-27 | 中国科学院电工研究所 | Modularized high-capacity current-limiting circuit breaker |
| CN112952783B (en) * | 2021-02-04 | 2022-08-09 | 中国科学院电工研究所 | Alternating current short circuit fault current limiter |
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| CN101477887A (en) * | 2008-09-26 | 2009-07-08 | 华中科技大学 | Hollow coupling reactor |
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| JP2935235B2 (en) * | 1988-07-13 | 1999-08-16 | 株式会社東芝 | Current limiter |
| US20120075051A1 (en) * | 2010-09-23 | 2012-03-29 | Northern Power Systems, Inc. | Magnetic Devices and Transformer Circuits Made Therewith |
| JP5824211B2 (en) * | 2010-12-21 | 2015-11-25 | 株式会社豊田中央研究所 | Composite magnetic component and switching power supply using the same |
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| CN101477887A (en) * | 2008-09-26 | 2009-07-08 | 华中科技大学 | Hollow coupling reactor |
| CN101814402A (en) * | 2009-10-29 | 2010-08-25 | 国网电力科学研究院 | Parallel type circuit breakers based on tightly coupled air reactor |
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| CN102790382A (en) * | 2012-07-19 | 2012-11-21 | 中国科学院电工研究所 | Current limited soft connecting/disconnecting device |
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