CN103956719A - Multi-column combination type superconductive resistance-sensitive type current limiter - Google Patents
Multi-column combination type superconductive resistance-sensitive type current limiter Download PDFInfo
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Abstract
Disclosed is a multi-column combination type superconductive resistance-sensitive type current limiter. The multi-column combination type superconductive resistance-sensitive type current limiter is formed by combining n superconductive inductance branches, n being greater than or equal to two. The limiter comprises L1 inner coils L1in and L1 outer coils L1out, L2 inner coils L2in and L2 outer coils L2out, L3 inner coils L3in and L3 outer coils L3out, ..., Ln inner coils Lnin and Ln outer coils Lnout, each inner coil and each outer coil have the same number of turns. The centers of the coils are uniformly distributed along a circumference, and every two coil centers form an included angle of 360/n degrees, n being greater than or equal to two. A superconductive coil is installed inside a low-temperature Dewar. During normal working, the resistance of the superconductive coil is zero, and inductance is quite small. In case that a system generates emergent short circuits, the superconductive coil performs rapid quenching to limit the transient values of short circuit currents, then each branch breaker is sequentially broken, and the voltages and resistance of the whole superconductive resistance-sensitive type current limiter gradually increase to limit the steady-state values of the short circuit currents.
Description
Technical field
The present invention relates to a kind of superconduction resistance sense type flow restricter that is applied to short trouble current limliting.
Background technology
Along with the fast development of national economy, society constantly increases the demand of electric power, drive the development of electric power system, single-machine capacity and station capacity, substation capacity, city and center of industry load constantly increase, just make between electric power system interconnectedly, the short circuit current level in electrical networks at different levels improves constantly.However, general way remains and adopts circuit breaker to cut-off faulty line, on the one hand protects power equipment, also avoids on the other hand because busbar voltage is too low and user is caused to adverse effect.Along with improving constantly of short circuit current level, just need to improve constantly the capacity that cut-offs of circuit breaker.But, further improve the capacity that cut-offs of circuit breaker, not only more and more difficult technically, and also cost also will increase substantially.In addition directly in parallel use of circuit breaker.Therefore, the off-capacity of cut-offfing of electric network fault short circuit current has more and more become the important bottleneck problem that limits power network development.
Consider the off-capacity of cut-offfing of circuit breaker, in recent years, the method for multiple restriction grid short circuit electric current also started to be concerned and to apply.The method of restriction grid short circuit electric current mainly contains: (1) improves line voltage; (2) untie electrical network and connect, comprise the connection disconnecting between some transmission lines or double-bus.In the time there is short trouble, can close back-up breaker and ensure power supply; (3) improve short-circuit of power transformer impedance; (4) installing current limiting reactor; (5) installing fault current limiter.But the cost that improves line voltage grade is too high; Untie the method that electrical network connects, can cause the power supply reliability of electrical network greatly to reduce; Adopting high-impedance transformer or current limiting reactor is that current limiting short-circuit current is the most also the most ripe scheme, but needs increase System Reactive Power and be unfavorable for Power Network Transient Stability.In electrical network, install this solution of fault current limiter in order to eliminate the shortcoming of current limiting reactor, can to adopt.Fault current limiter under normal operation impedance is very little, and in the time of short trouble, impedance becomes greatly and current limliting.The fault current limiter technology of current comparative maturity mainly contains series connection current limiting reactor, series resonant-type fault current limiter, controlled series compensation fault current limiter etc., and be mainly the current limiting technique that application new material is realized in the fault current limiter technology of conceptual phase, comprise superconductive current limiter, PTC thermistor flow restricter and solid-state current limiter.
In current superconductive current limiter technology, superconduct resistance type flow restricter has obtained very large concern.In the time that system is normally moved, superconduct resistance type flow restricter presents no resistance state, on electrical network without any impact, in the time that fault occurs, high-temperature superconductor quench and present high resistance state and carry out current limliting.Superconduct resistance type flow restricter, in the time making, normally utilizes single or many superconductive tapes to be made into noninductive disc coil module, and then the logical module of multiple noninductive disc coils is crossed connection in series-parallel and formed flow restricter.Paper (Development of resistive fault current limiters based on YBCO coated conductors, IEEE Transactions on Applied Superconductivity, vol.19, no.3, pp.1950-1955) the eight-trigram type structure fabrication superconduction noninductive resistance that has adopted single conductor middle part to circle round, Chinese invention patent 201210057470.2 has adopted two-conductor line with making superconduction noninductive resistance around end welded structure.The shortcoming of cake formula structural-superconducting resistance type flow restricter is that single cake port voltage is the highest, is therefore difficult to be made into large flat bread, needs multiple little cake series connection just can be constructed to be permeable to bear high-tension flow restricter, thereby has increased joint quantity.Superconduct resistance type flow restricter also can be configured to cylinder mode, paper (An analysis and short circuit test of various types of Bi-2223bifilar winding fault current limiting module, IEEE Transactions on Applied Superconductivity, 2006, vol.16, no.2, pp.703-706) adopt biobelt radially lap wound mode constructed drum type brake noninductive resistance coil, Chinese invention patent 201210057511.8 adopts biobelt vertically and has constructed drum type brake noninductive resistance coil around mode.But radial and axial and around drum type brake noninductive coil all exist port voltage to cross the problems such as high, be difficult to make large cylinder.The superconduction noninductive resistance coil of common cake formula structure and cylinder mode is in the time being applied to high-power occasion, because single noninductive resistance module cannot be done greatly, can only realize by connection in series-parallel, have that joint is too much, splicing loss is large, between unit in parallel, be difficult to current-sharing, and cannot, with the shortcomings of inductive mode operation, if find a kind of method of constructing large-scale superconduction noninductive coil, very positive meaning will be there is.
Summary of the invention
Because existing resistor-type high tc superconducting fault current limiter can only form multiple small units module connection in series-parallel forms, exist splicing loss large, all press the shortcoming of current-sharing complexity, and can only be with resistance mode work, the Joule heat that produces in current limliting process is too high, quench reply slow, be difficult to meet the problems such as reclosing, existing superconduction inductive type flow restricter increases System Reactive Power and pressure drop in the time of steady operation, and owing to exchanging the existence of stray field, is difficult to adopt stainless steel metal Dewar.The object of the invention is to overcome the shortcoming of above-mentioned prior art, propose a kind of column combined type superconduction resistance sense type flow restricter.The present invention adopts resistance and the common current limliting of inductance of superconducting coil, in the time of stable state, the resistance of flow restricter is zero, inductance is very little, in the time of sudden short circuit, the quick quench of superconducting coil, resistance increase the instantaneous value of fault current limiting, after each branch breaker cut-offs in succession, the inductance of superconducting coil increases, the steady-state value of fault current limiting.Superconducting coil can be designed as small resistor, large inductance type, and the caloric value of superconducting coil is reduced.
To achieve these goals, column combined type superconduction resistance sense type flow restricter of the present invention is by the following technical solutions:
Column combined type superconduction resistance sense type flow restricter is formed by n post superconduction inductance branch combinations, n >=2, described flow restricter comprise L1 post interior loop and exterior loop, L2 post interior loop and exterior loop, L3 post interior loop and exterior loop ..., Ln post interior loop and exterior loop, cooled cryostat and branch breaker; The inside and outside coil number of turn of each post is identical, around on the contrary.The center of each post coil distributes along even circumferential, and angle is 360 °/n between any two, n >=2.The binding post of L1 post coil is respectively interior loop input, interior loop output, exterior loop input and exterior loop output, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input and interior loop output are positioned at the upper and lower both sides of L1 post interior loop, and exterior loop input and exterior loop output are positioned at the upper and lower both sides of L1 post exterior loop; The binding post of L2 post coil is respectively interior loop input, interior loop output, exterior loop input and exterior loop output, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input and interior loop output are positioned at the upper and lower both sides of L2 post interior loop, and exterior loop input and exterior loop output are positioned at the upper and lower both sides of L2 post exterior loop; The binding post of L3 post coil is respectively interior loop input, interior loop output, exterior loop input and exterior loop output, input and output terminal lays respectively at the both sides up and down of coil: interior loop input and interior loop output are positioned at the upper and lower both sides of L3 post interior loop, and exterior loop input and exterior loop output are positioned at the upper and lower both sides of L3 post exterior loop; The binding post of Ln post coil is respectively interior loop input, interior loop output, exterior loop input and exterior loop output, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input and interior loop output are positioned at the upper and lower both sides of Ln post interior loop, and exterior loop input and exterior loop output are positioned at the upper and lower both sides of Ln post exterior loop.Interior loop and exterior loop on the different posts of flow restricter are arranged in cooled cryostat inside; Each branch breaker is arranged in cooled cryostat outside, is connected on respectively L1 post exterior loop output branch road, L2 post exterior loop output branch road, L3 post exterior loop output branch road and Ln post exterior loop output branch road.L1 post interior loop input, L2 post interior loop input, L3 post interior loop input and Ln post interior loop input short circuit are as the input of n column combination formula superconduction resistance sense type flow restricter, L1 post interior loop output is connected with L2 post exterior loop input, L2 post interior loop output is connected with L3 post exterior loop input, Ln-1 post interior loop output is connected with Ln post exterior loop input, and Ln post interior loop output is connected with L1 post exterior loop input.L1 post exterior loop output, L2 post exterior loop output, L3 post exterior loop output and Ln post exterior loop output short circuit are as the output of n column combination formula superconduction resistance sense type flow restricter.Because the number of turn of each post inner-outer coil is identical, the therefore resistance of each branch road and inductance full symmetric, thus ensure that the CURRENT DISTRIBUTION of each branch road is even.Distribute and compared with copper lead effect by joint with each parallel branch electric current of simple superconduct resistance type flow restricter, each branch current of superconduction resistance sense type flow restricter distributes according to inductance, and therefore electric current distributes more even.Each branch breaker is closure state while normally work.In the time of sudden short circuit, each branch breaker disconnects in succession, and the inductance of whole superconduction resistance sense type flow restricter and resistance all progressively increase, and short circuit current reduces gradually.Because superconduction resistance sense type flow restricter adopts resistance and the common current limliting of inductance, the caloric value of superconducting tape is little, is more conducive to improve stability.
Column combined type superconduction resistance sense type flow restricter is branch breaker closure in the time of normal operation, and the resistance of resistance sense type flow restricter is zero, and inductance is the parallel connection of each branch road leakage reactance.Initial stage in the time of system burst short circuit, superconduction resistance sense type flow restricter is similar to superconduct resistance type flow restricter, thereby the instantaneous value of the rapid quench fault current limiting of flow restricter, afterwards because branch breaker cut-offs, total reactance value of device increases sharply, thereby restriction short-circuit current, line-breaker more easily disconnects.In order to improve the fail safe of column combined type superconduction resistance sense type flow restricter operation, reduce the caloric value of superconduction resistance sense type flow restricter, and meet reclosing requirement, column combined type superconduction resistance sense type flow restricter has the superconductive tape coiling of high resistivity after can adopting quench, can also adopt wholly or in part the superconductive tape coiling after quench with low-resistivity.It is that superconducting tape or B are a kind of coiling in superconducting tape that interior loop on different posts and exterior loop adopt Y, or different coil adopts two kinds of different superconducting tape coilings; Cooled cryostat adopts the stainless steel material with vacuum interlayer to make.
The present invention has following major advantage:
1) the column combined type superconduction resistance sense type flow restricter of the present invention's structure, utilize the instantaneous value of the rapidity fault current limiting of superconducting tape quench, utilize progressively disconnecting and realize the transformation to resistance sense by resistance of resistance sense type flow restricter of each branch breaker, can further improve failure current limit limitation rate.
2) the present invention can be used for constructing jumbo superconductive current limiter.Adopt the mode of multicolumn combination to realize the parallel connection of multiple superconductive current limiter branch roads, and can realize the uniform distribution of each branch current, thereby reduced technical difficulty and cost that large-scale superconductive current limiter is made, more have the market competitiveness.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is the equivalent circuit diagram of column combined type superconduction resistance sense type flow restricter of the present invention;
Fig. 2 is the mounting arrangement figure of the specific embodiment of the invention 1 twin columns combined superconductive resistance sense type flow restricter;
Fig. 3 is loop construction and the mode of connection figure of the specific embodiment of the invention 1 twin columns combined superconductive resistance sense type flow restricter;
Fig. 4 is the mounting arrangement figure of the specific embodiment of the invention 2 three column combination formula superconduction resistance sense type flow restricters;
Fig. 5 is loop construction and the mode of connection figure of the specific embodiment of the invention 2 three column combination formula superconduction resistance sense type flow restricters;
Fig. 6 is the mounting arrangement figure of the specific embodiment of the invention 3 four column combination formula superconduction resistance sense type flow restricters;
Fig. 7 is loop construction and the mode of connection figure of the specific embodiment of the invention 3 four column combination formula superconduction resistance sense type flow restricters.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The present invention proposes the column combined type superconduction resistance sense type flow restricter that is applied to flow restricter field.
As shown in Figure 1, be n(n >=2 of the present invention) equivalent circuit diagram of column combination formula superconduction resistance sense type flow restricter.The self-induction of the n column combination formula superconduction resistance sense each interior winding of type flow restricter and outer winding is L, and mutual inductance is M, when resistance normal condition, is 0, is increased to R when quench.Because the double winding number of turn is identical, around on the contrary, self-induction L and mutual inductance M are very approaching.In the time that system is normally moved, the reactance value of reactor
be a very little numerical value, very little to systematic influence, the ampacity of n branch breaker KL1, KL2, KL3 and KLn is the 1/n of transmission line electric current.In the time that system is short-circuited fault, each branch breaker cut-offs in succession, the reactance value of reactor from
progressively be increased to L, resistance is progressively increased to R, final all switches disconnection cutting-off of short-circuit electric currents from 0.
As shown in Figures 2 and 3, be the mounting arrangement figure of the specific embodiment of the invention 1 twin columns combined superconductive resistance sense type flow restricter, and occluder configurations and mode of connection figure.When superconductive current limiter is applied to high-voltage great-current occasion, need to adopt more superconductive tape parallel connections.The present embodiment twin columns combined superconductive resistance sense type flow restricter is made up of L1 post interior loop L1in and exterior loop L1out, L2 post interior loop L2in and exterior loop L2out, cooled cryostat Dewar and branch breaker KL1, KL2, each post inner-outer coil number of turn is identical, around on the contrary.The center of each post coil distributes along even circumferential, and angle is 90 ° between any two.The binding post of L1 post coil is respectively interior loop input L1a, interior loop output L1b, exterior loop input L1c and exterior loop output L1d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L1a and interior loop output L1b lay respectively at the upper and lower both sides of the interior loop L1in of L1 post coil, and exterior loop input L1c and exterior loop output L1d lay respectively at the upper and lower both sides of the exterior loop L1out of L1 post coil; The binding post of L2 post coil is respectively interior loop input L2a, interior loop output L2b, exterior loop input L2c and exterior loop output L2d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L2a and interior loop output L2b lay respectively at the upper and lower both sides of the interior loop L2in of L2 post coil, and exterior loop input L2c and exterior loop output L2d lay respectively at the upper and lower both sides of the exterior loop L2out of L2 post coil.Interior loop on flow restricter two posts and exterior loop are arranged in cooled cryostat Dewar inside; Two branch breaker KL1 and KL2 are arranged in cooled cryostat Dewar outside, are connected on respectively L1 post exterior loop output L1d branch road, L2 post exterior loop output L2d branch road.L1 post interior loop input L1a, L2 post interior loop input L2a short circuit are as the input of twin columns combined superconductive resistance sense type flow restricter, L1 post interior loop output L1b is connected with L2 post exterior loop input L2c, and L2 post interior loop output L2b is connected with L1 post exterior loop input L1c.L1 post exterior loop output L1d, L2 post exterior loop output L2d short circuit are as the output of twin columns combined superconductive resistance sense type flow restricter.Because the number of turn of two post inner-outer coils is identical, the therefore resistance of two branch roads and inductance full symmetric, thus ensure that the CURRENT DISTRIBUTION of each branch road is even.Distribute and compared with copper lead effect by joint with each parallel branch electric current of simple superconduct resistance type flow restricter, each branch current of superconduction resistance sense type flow restricter distributes according to inductance, and therefore electric current distributes more even.Two branch breaker KL1, KL2 are closure state while normally work.In the time of sudden short circuit, two branch breaker KL1 and KL2 disconnect in succession, and the inductance of whole superconduction resistance sense type flow restricter and resistance all progressively increase, and short circuit current reduces gradually.It is that superconducting tape or B are a kind of coiling in superconducting tape that interior loop on L1 post and L2 post and exterior loop adopt Y, or different coil adopts different superconducting tape coilings; Cooled cryostat adopts the stainless steel material with vacuum interlayer to make.
As shown in Figure 4 and Figure 5, be the mounting arrangement figure of the specific embodiment of the invention 2 three column combination formula superconduction resistance sense type flow restricters, and occluder configurations and mode of connection figure.When superconductive current limiter is applied to high-voltage great-current occasion, need to adopt more superconductive tape parallel connections.The present embodiment three column combination formula superconduction resistance sense type flow restricters are made up of L1 post interior loop L1in and exterior loop L1out, L2 post interior loop L2in and exterior loop L2out, L3 post interior loop L3in and exterior loop L3out, cooled cryostat Dewar and branch breaker KL1, KL2, KL3, the three post inner-outer coil numbers of turn are identical, around on the contrary.The center of three post coils distributes along even circumferential, and angle is 120 ° between any two.The binding post of L1 post coil is respectively interior loop input L1a, interior loop output L1b, exterior loop input L1c and exterior loop output L1d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L1a and interior loop output L1b lay respectively at the upper and lower both sides of the interior loop L1in of L1 post coil, and exterior loop input L1c and exterior loop output L1d lay respectively at the upper and lower both sides of the exterior loop L1out of L1 post coil; The binding post of L2 post coil is respectively interior loop input L2a, interior loop output L2b, exterior loop input L2c and exterior loop output L2d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L2a and interior loop output L2b lay respectively at the upper and lower both sides of the interior loop L2in of L2 post coil, and exterior loop input L2c and exterior loop output L2d lay respectively at the upper and lower both sides of the outer L2out of L2 post coil; The binding post of L3 post coil is respectively interior loop input L3a, interior loop output L3b, exterior loop input L3c and exterior loop output L3d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L3a and interior loop output L3b lay respectively at the upper and lower both sides of the interior loop L3in of L3 post coil, and exterior loop input L3c and exterior loop output L3d lay respectively at the upper and lower both sides of the exterior loop L3out of L3 post coil.Interior loop on flow restricter three posts and exterior loop are arranged in cooled cryostat Dewar inside; Each branch breaker KL1, KL2 and KL3 are arranged in cooled cryostat Dewar outside, are connected on respectively L1 post exterior loop output L1d branch road, L2 post exterior loop output L2d branch road and L3 post exterior loop output L3d branch road.L1 post interior loop input L1a, L2 post interior loop input L2a, L3 post interior loop input L3a short circuit are as the input of three column combination formula superconduction resistance sense type flow restricters, L1 post interior loop output L1b is connected with L2 post exterior loop input L2c, L2 post interior loop output L2b is connected with L3 post exterior loop input L3c, and L3 post interior loop output L3b is connected with L1 post exterior loop input L1c.L1 post exterior loop output L1d, L2 post exterior loop output L2d, L3 post exterior loop output L3d short circuit are as the output of three column combination formula superconduction resistance sense type flow restricters.Because the number of turn of each post inner-outer coil is identical, the therefore resistance of each branch road and inductance full symmetric, thus ensure that the CURRENT DISTRIBUTION of each branch road is even.Distribute and compared with copper lead effect by joint with each parallel branch electric current of simple superconduct resistance type flow restricter, each branch current of superconduction resistance sense type flow restricter distributes according to inductance, and therefore electric current distributes more even.Each branch breaker KL1, KL2 and KL3 are closure state in the time of normal work.In the time of sudden short circuit, each branch breaker KL1, KL2 and KL3 disconnect in succession, and the inductance of whole superconduction resistance sense type flow restricter and resistance all progressively increase, and short circuit current reduces gradually.It is that superconducting tape or B are a kind of coiling in superconducting tape that interior loop on L1 post, L2 post and L3 post and exterior loop adopt Y, or different coil adopts different superconducting tape coilings; Cooled cryostat adopts the stainless steel material with vacuum interlayer to make.
As shown in Figure 6 and Figure 7, be the mounting arrangement figure of the specific embodiment of the invention 3 four column combination formula superconduction resistance sense type flow restricters, and occluder configurations and mode of connection figure.When superconductive current limiter is applied to high-voltage great-current occasion, need to adopt more superconductive tape parallel connections.The present embodiment four column combination formula superconduction resistance sense type flow restricters are made up of L1 post interior loop L1in and exterior loop L1out, L2 post interior loop L2in and exterior loop L2out, L3 post interior loop L3in and exterior loop L3out, L4 post interior loop L4in and exterior loop L4out, low-temperature (low temperature) vessel Dewar and branch breaker KL1, KL2, KL3, KL4, each post inner-outer coil number of turn is identical, around on the contrary.The center of each post coil distributes along even circumferential, and angle is 90 ° between any two.The binding post of L1 post coil is respectively interior loop input L1a, interior loop output L1b, exterior loop input L1c and exterior loop output L1d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L1a and interior loop output Lb lay respectively at the upper and lower both sides of the interior loop L1in of L post coil, and exterior loop input L1c and exterior loop output L1d lay respectively at the upper and lower both sides of the exterior loop L1out of L1 post coil; The binding post of L2 post coil is respectively interior loop input L2a, interior loop output L2b, exterior loop input L2c and exterior loop output L2d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L2a and interior loop output L2b lay respectively at the upper and lower both sides of the interior loop L2in of L2 post coil, and exterior loop input L2c and exterior loop output L2d lay respectively at the upper and lower both sides of the exterior loop L2out of L2 post coil; The binding post of L3 post coil is respectively interior loop input L3a, interior loop output L3b, exterior loop input L3c and exterior loop output L3d, input terminal and lead-out terminal lay respectively at the both sides up and down of coil: interior loop input L3a and interior loop output L3b lay respectively at the upper and lower both sides of the interior loop L3in of L3 post coil, and exterior loop input L3c and exterior loop output L3d lay respectively at the upper and lower both sides of the exterior loop L3out of L3 post coil; The binding post of L4 post coil is respectively interior loop input L4a, interior loop output L4b, exterior loop input L4c and exterior loop output L4d, and input terminal and lead-out terminal lay respectively at the both sides up and down of coil; Interior loop input L4a and interior loop output L4b lay respectively at the upper and lower both sides of the interior loop L4in of L4 post coil, and exterior loop input L4c and exterior loop output L4d lay respectively at the upper and lower both sides of the exterior loop L4out of L4 post coil.Interior loop on flow restricter four posts and exterior loop are arranged in cooled cryostat Dewar inside; Each branch breaker KL1, KL2, KL3 and KL4 are arranged in cooled cryostat Dewar outside, are connected on respectively L1 post exterior loop output L1d branch road, L2 post exterior loop output L2d branch road, L3 post exterior loop output L3d branch road and L4 post exterior loop output L4d branch road.L1 post interior loop input L1a, L2 post interior loop input L2a, L3 post interior loop input L3a and L4 post interior loop input L4a short circuit are as the input of four column combination formula superconduction resistance sense type flow restricters, L1 post interior loop output L1b is connected with L2 post exterior loop input L2c, L2 post interior loop output L2b is connected with L3 post exterior loop input L3c, L3 post interior loop output L3b is connected with L4 post exterior loop input L4c, and L4 post interior loop output L4b is connected with L1 post exterior loop input L1c.L1 post exterior loop output L1d, L2 post exterior loop output L2d, L3 post exterior loop output L3d and L4 post exterior loop output L4d short circuit are as the output of four column combination formula superconduction resistance sense type flow restricters.Because the number of turn of each post inner-outer coil is identical, the therefore resistance of each branch road and inductance full symmetric, thus ensure that the CURRENT DISTRIBUTION of each branch road is even.Distribute and compared with copper lead effect by joint with each parallel branch electric current of simple superconduct resistance type flow restricter, each branch current of superconduction resistance sense type flow restricter distributes according to inductance, and therefore electric current distributes more even.Each branch breaker KL1, KL2, KL3 and KL4 are closure state in the time of normal work.In the time of sudden short circuit, each branch breaker KL1, KL2, KL3 and KL4 disconnect in succession, and the inductance of whole superconduction resistance sense type flow restricter and resistance all progressively increase, and short circuit current reduces gradually.It is that superconducting tape or B are a kind of coiling in superconducting tape that interior loop on L1 post, L2 post, L3 post and L4 post and exterior loop adopt Y, or different coil adopts different superconducting tape coilings; Cooled cryostat adopts the stainless steel material with vacuum interlayer to make.
Although described three embodiment have discussed the column combined type superconduction resistance sense type flow restricter of two posts, three posts and four rod structures, but should understand, the column combined type superconduction resistance sense type flow restricter that the present invention mentions is not limited to situation described in embodiment, thereby not deviating under the principle of know-why of the present invention, can make various changes and distortion.As the number of the cylinder of mentioning in above embodiment can adopt greater number to carry out the parallel connection of more superconductive tapes, for n column combination formula superconduction resistance sense type flow restricter, to ensure that when mounted between Ge Zhu center, angle is 360/n, n >=2.Branch breaker also can change electronic power switch into, also can be arranged on end of incoming cables, can also cancel circuit breaker.In addition, the exterior loop of each post and interior loop also can adopt multi-layer cylinder formula structure, and interlayer leaves heat dissipation channel.
Claims (4)
1. a column combined type superconduction resistance sense type flow restricter, is characterized in that, column combined type superconduction resistance sense type flow restricter is formed by n post superconduction inductance branch combinations, n >=2; Described flow restricter comprises L1 post interior loop (L1in) and exterior loop (L1out), L2 post interior loop (L2in) and exterior loop (L2out), L3 post interior loop (L3in) and exterior loop (L3out), Ln post interior loop (Lnin) and exterior loop (Lnout), cooled cryostat (Dewar) and branch breaker (KL1, KL2, KL3 ..., KLn); The inside and outside coil number of turn of each post is identical, around on the contrary; The center of each post coil distributes along even circumferential, and angle is 360 °/n between any two, n >=2; The binding post of L1 post coil is respectively interior loop input (L1a), interior loop output (L1b), exterior loop input (L1c) and exterior loop output (L1d), and input terminal and lead-out terminal lay respectively at the both sides up and down of coil; The binding post of L2 post coil is respectively interior loop input (L2a), interior loop output (L2b), exterior loop input (L2c) and exterior loop output (L2d), and input terminal and lead-out terminal lay respectively at the both sides up and down of coil; The binding post of L3 post coil is respectively interior loop input (L3a), interior loop output (L3b), exterior loop input (L3c) and exterior loop output (L3d), and input terminal and lead-out terminal lay respectively at the both sides up and down of coil; The binding post of Ln post coil is respectively interior loop input (Lna), interior loop output (Lnb), exterior loop input (Lnc) and exterior loop output (Lnd), and input terminal and lead-out terminal lay respectively at the both sides up and down of coil; Interior loop and exterior loop on the different posts of flow restricter are arranged in cooled cryostat (Dewar) inside; Each branch breaker (KL1, KL2, KL3 ..., KLn) be arranged in cooled cryostat (Dewar) outside, be connected on respectively L1 post exterior loop output (L1d) branch road, L2 post exterior loop output (L2d) branch road, L3 post exterior loop output (L3d) branch road and Ln post exterior loop output (Lnd) branch road.
2. column combined type superconduction resistance sense type flow restricter according to claim 1, it is characterized in that, described multicolumn superconduction inductive branch adopts following connected mode: L1 post interior loop input (L1a), L2 post interior loop input (L2a), L3 post interior loop input (L3a) and Ln post interior loop input (Lna) short circuit are as the input of n column combination formula superconduction resistance sense type flow restricter, L1 post interior loop output (L1b) is connected with L2 post exterior loop input (L2c), L2 post interior loop output (L2b) is connected with L3 post exterior loop input (L3c), Ln-1 post interior loop output (Ln-1b) is connected with Ln post exterior loop input (Lnc), Ln post interior loop output (Lnb) is connected with L1 post exterior loop input (L1c), L1 post exterior loop output (L1d), L2 post exterior loop output (L2d), L3 post exterior loop output (L3d) and Ln post exterior loop output (Lnd) short circuit are as the output of n column combination formula superconduction resistance sense type flow restricter, because the number of turn of each post inner-outer coil is identical, the therefore resistance of each branch road and inductance full symmetric, has ensured that the CURRENT DISTRIBUTION of each branch road is even.
3. column combined type superconduction resistance sense type flow restricter according to claim 1, is characterized in that, each branch breaker in the time of normal work (KL1, KL2, KL3 ..., KLn) be closure state; In the time of sudden short circuit, each branch breaker (KL1, KL2, KL3 ..., KLn) in succession disconnect, the inductance of whole superconduction resistance sense type flow restricter and resistance all progressively increase, short circuit current reduces gradually.
4. column combined type superconduction resistance sense type flow restricter according to claim 1, is characterized in that, it is that superconducting tape or B are a kind of coiling in superconducting tape that the interior loop on different posts and exterior loop adopt Y, or different coil adopts different superconducting tape coilings; Described cooled cryostat (Dewar) adopts the stainless steel material with vacuum interlayer to make.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451390A (en) * | 2016-11-15 | 2017-02-22 | 广东电网有限责任公司电力科学研究院 | Resistor type superconductive current limiter with adjustable operation volume and current limiting resistance |
| CN111525501A (en) * | 2020-05-28 | 2020-08-11 | 中国科学院电工研究所 | Modularized high-capacity current-limiting circuit breaker |
| CN114496461A (en) * | 2022-04-15 | 2022-05-13 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
| EP4035214A4 (en) * | 2019-10-25 | 2023-10-18 | Victoria Link Limited | A superconducting switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976161A (en) * | 2005-12-02 | 2007-06-06 | Ls产电株式会社 | Resistive superconducting fault current limiter |
| CN101183781A (en) * | 2007-12-10 | 2008-05-21 | 华中科技大学 | Shunt inductance current-limiting breaker |
| US20090190274A1 (en) * | 2008-01-30 | 2009-07-30 | Industry-Academic Cooperation Foundation, Yonsei Universty | Current limiting module and hybrid current limiter using different kinds of superconducting wires |
| CN102044865A (en) * | 2009-10-21 | 2011-05-04 | 北京云电英纳超导电缆有限公司 | Saturated core type superconductive current limiter with cable-wound AC winding structure |
| CN103078306A (en) * | 2013-01-09 | 2013-05-01 | 中国科学院电工研究所 | Fault current limiter on basis of combined rapid switch-on switch |
| CN103368156A (en) * | 2013-08-05 | 2013-10-23 | 北京云电英纳超导电缆有限公司 | Modularized saturation iron core superconductive current limiter and control method thereof |
-
2014
- 2014-03-26 CN CN201410116959.1A patent/CN103956719B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976161A (en) * | 2005-12-02 | 2007-06-06 | Ls产电株式会社 | Resistive superconducting fault current limiter |
| CN101183781A (en) * | 2007-12-10 | 2008-05-21 | 华中科技大学 | Shunt inductance current-limiting breaker |
| US20090190274A1 (en) * | 2008-01-30 | 2009-07-30 | Industry-Academic Cooperation Foundation, Yonsei Universty | Current limiting module and hybrid current limiter using different kinds of superconducting wires |
| CN102044865A (en) * | 2009-10-21 | 2011-05-04 | 北京云电英纳超导电缆有限公司 | Saturated core type superconductive current limiter with cable-wound AC winding structure |
| CN103078306A (en) * | 2013-01-09 | 2013-05-01 | 中国科学院电工研究所 | Fault current limiter on basis of combined rapid switch-on switch |
| CN103368156A (en) * | 2013-08-05 | 2013-10-23 | 北京云电英纳超导电缆有限公司 | Modularized saturation iron core superconductive current limiter and control method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451390A (en) * | 2016-11-15 | 2017-02-22 | 广东电网有限责任公司电力科学研究院 | Resistor type superconductive current limiter with adjustable operation volume and current limiting resistance |
| EP4035214A4 (en) * | 2019-10-25 | 2023-10-18 | Victoria Link Limited | A superconducting switch |
| CN111525501A (en) * | 2020-05-28 | 2020-08-11 | 中国科学院电工研究所 | Modularized high-capacity current-limiting circuit breaker |
| 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 |
| CN114496461A (en) * | 2022-04-15 | 2022-05-13 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
| CN114496461B (en) * | 2022-04-15 | 2022-07-05 | 中国科学院合肥物质科学研究院 | High-temperature superconducting assembly with composite high-temperature superconducting current lead |
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