CN1790853A - Composite high temperature superconductive power fault current limiter - Google Patents
Composite high temperature superconductive power fault current limiter Download PDFInfo
- Publication number
- CN1790853A CN1790853A CN 200510022229 CN200510022229A CN1790853A CN 1790853 A CN1790853 A CN 1790853A CN 200510022229 CN200510022229 CN 200510022229 CN 200510022229 A CN200510022229 A CN 200510022229A CN 1790853 A CN1790853 A CN 1790853A
- Authority
- CN
- China
- Prior art keywords
- high temperature
- fault current
- current limiter
- power fault
- temperature superconductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The composite high-temperature superconductor current limiter for electric fault comprises connected in series a magnetic-saturation high-temperature superconductor current limiter 1 with two connected iron-core reactors in series and high-temperature superconductor coil as dc offset coil on secondary winding, and a resistance-type high-temperature superconductor current limiter 2 with relative-higher substrate resistance. Wherein, connecting in series a switch to said limiter 1 and 2 respectively for online maintenance. The advantages of this invention include: rapid response speed, strong large current limiting ability, smaller volume, better practicability, and higher security.
Description
Technical field
Composite high temperature superconductive power fault current limiter belongs to electrical equipment technical field, particularly a kind of protective device that is used for large-capacity power transmission and distribution network restriction short-circuit fault of power system electric current.
Background technology
The most frequently used power failure current limitation device is the current limiting reactor of being made by air core inductor at present.But because the inductance value of this reactor is fixed, therefore can not adapt to the requirement that the power system operation condition changes, can't overcome the contradiction between the loss of voltage that increases the fault current limiting ability and reduce electric power system when normally moving, thereby its effective use is restricted.
After high temperature superconducting materia occurred, a series of dissimilar high temperature superconductive power fault current limiters of high-temperature superconductor characteristics design that utilize were come out one after another.High-temperature superconductor has the intrinsic current limiting characteristic, promptly enters the resistance that normal state occurs after resistance and the quench zero point of superconducting state, and therefore, superconductor itself is exactly a flow restricter, but when practical application, but can not simply reach the requirement that the electric power system current limliting is used.
The reactance type flow restricter that utilizes saturable reactor to design and produce is because its operating characteristic can't utilize the conventional conductor technology to realize technically.Utilize original cryogenic superconductor, technical can the realization, but operating cost is too high, occurs the economical efficiency that can't resolve in the actual motion again.Because the successful development of high temperature super conductive conductor, it can be used to make high amp-circle coil.Along with the raising of apply properties such as critical current, prepare saturation reactance type fault current limiter with high temperature superconductor coil and had feasibility.
Utilize the resistive current limiter response speed of high-temperature superconductor intrinsic current limiting characteristic fast, but a little less than the big current limitation ability; The response speed of magnetic saturation type flow restricter is slow, but strong and safe to big current limitation ability.So, use wherein a kind of flow restricter can't satisfy the actual requirement of restriction short-circuit fault of power system electric current in large-capacity power transmission and the distribution network separately.
Summary of the invention
The invention provides a kind of composite high temperature superconductive power fault current limiter, this flow restricter has the advantage of resistance-type high temperature superconductive power fault current limiter and magnetic saturation type high temperature superconductive power fault current limiter concurrently, promptly has fast, the big strong and safe characteristics of current limitation ability of response speed; Simultaneously, this flow restricter has been avoided the big current limitation ability of resistance-type high temperature superconductive power fault current limiter weak shortcoming and the slow shortcoming of magnetic saturation type high temperature superconductive power fault current limiter response speed, satisfies the actual requirement of restriction short-circuit fault of power system electric current in large-capacity power transmission and the distribution network fully.
Basic ideas of the present invention be resistance-type and two kinds of high temperature superconductive power fault current limiters of magnetic saturation type are connected compound, thereby constitute a kind of composite high temperature superconductive power fault current limiter.The response speed that this composite high temperature superconductive power fault current limiter has solved above-mentioned two kinds of high temperature superconductive power fault flow restricters when using separately and the problem of big current limitation ability, and can improve fail safe greatly, thereby can realize the practical application of high temperature superconductive power fault current limiter.
Technical solution of the present invention is as follows:
A kind of composite high temperature superconductive power fault current limiter, comprise magnetic saturation type high temperature superconductive power fault current limiter 1 and resistance-type high temperature superconductive power fault current limiter 2, it is characterized in that magnetic saturation type high temperature superconductive power fault current limiter 1 and resistance-type high temperature superconductive power fault current limiter 2 are in series.
Described magnetic saturation type high temperature superconductive power fault current limiter 1 and resistance-type high temperature superconductive power fault current limiter 2 can be distinguished switch in parallel, so that composite high temperature superconductive power fault current limiter in use carries out on-line maintenance to magnetic saturation type high temperature superconductive power fault current limiter 1 or resistance-type high temperature superconductive power fault current limiter 2 respectively.
Described magnetic saturation type high temperature superconductive power fault current limiter 1 is in series by two iron core reactors (3,4), and as shown in Figure 2, each iron core reactor is made up of closed magnetic core, elementary winding and secondary winding; Each closed magnetic core can be by two C shape magnetic cores (as shown in Figure 3) or two L shaped magnetic cores (as shown in Figure 4) formation that links together; Elementary winding is the coil of plain conductor coiled; Secondary winding is the coil by the high temperature super conductive conductor coiling, and places cooled containers; The direction of winding of two elementary windings is opposite, the direction of winding unanimity of two secondary winding (or the direction of winding unanimity of two elementary windings, the direction of winding of two secondary winding is opposite).
Described magnetic saturation type high temperature superconductive power fault current limiter 1 can also increase a monitoring coil on magnetic core, grasp the operating state of magnetic saturation type high temperature superconductive power fault current limiter 1 at any time with the operating current that passes through in the inductive primary winding.
The loop construction of described secondary winding can be compound disc coil or solenoid type coil, respectively as shown in Figure 7 and Figure 8.
Described resistance-type high temperature superconductive power fault current limiter 2 is a high-temperature superconductor element with higher relatively matrix resistance, and places cooled containers, as shown in Figure 5, comprises high value matrix 6 and high-temperature superconductor 5.Described high-temperature superconductor 5 can be high-temperature superconductor bodies such as strip and block, film like, wire.Described high value matrix 6 can be the metallic matrix with high resistivity.During use, the two ends of resistance-type high temperature superconductive power fault current limiter 2 link to each other with power line 7.
Above-mentioned cooled containers can be a Dewar bottle; The required cooling work environment of high-temperature superconductor can provide with the mode of refrigerating fluid refrigeration, also can provide with the mode of refrigeration machine refrigeration.
Described magnetic saturation type high temperature superconductive power fault current limiter 1 reality is a kind of saturable reactor that utilizes high-temperature superconductor direct current biasing coil to constitute.As shown in Figure 1, during work, on secondary winding, apply the bigoted voltage in tributary; Elementary winding is connected in the transmission line.At this moment, in fact two secondary winding become the direct supercurrent bias coil, produce a dc magnetization field with its enough direct current ampere-turn value, make iron core be in degree of depth saturation condition.When specified alternating current when being connected in the transmission line elementary winding because iron core is in the magnetic saturation state, this moment, elementary winding was in low induction reactance state in electrical network; And when short trouble occurring in the electric power system, the electric current that moment increases makes the magnetomotive force of elementary winding generation in one group of iron core of flow restricter, increase to offset fully and lead the magnetomotive force that direct current biasing coil (secondary winding) produces, so iron core enters normal state by saturation condition, the high induction reactance of the instantaneous generation of elementary winding, thus volitional check the increase of short circuit current in the electrical network.Select two groups of iron cores for use, and two winding polarity directions are opposite, order be the short circuit current that occurs at positive half cycle and negative half period in order to limit respectively.
This flow restricter is by saturable reactor and high temperature superconductor technology be combined into, it is actually to be risen by two iron core reactance and is in series, secondary winding on each iron core is the direct current biasing winding that is turned to by high temperature superconducting materia, and they are placed in the cooled containers.The direct current biasing winding makes core of reactor fully saturated with its enough direct current ampere-turn value, with on the AC Windings that guarantees flow restricter during by electrical network operate as normal rated current, can provide saturated Low ESR; Otherwise, when big failed shorted electric current passes through flow restricter, can cause two iron cores to replace desaturation at the different electrical power half cycle.Reactor withdraws from when saturated, presents high induction reactance automatically, effectively limiting short-circuit current.Secondary winding adopts high temperature superconducting materia, making direct current biasing coil non-resistance energy loss can provide higher current density, thus the bias supply voltage and the capacity that greatly reduce, and dwindle the volume of secondary winding greatly, finally realize the practicality of saturable reactor.
When described resistance-type high temperature superconductive power fault current limiter 2 is worked, be serially connected with in the electrical network.Its equivalent electric circuit as shown in Figure 6, high-temperature superconductor 5 can be considered variable resistor R1, and the high value matrix can be considered fixed resistance R2, is serially connected with in the electrical network after R1 and the R2 parallel connection.When the rated current in the electrical network was passed through the resistance-type high temperature superconductive power fault current limiter, owing to the critical current of rated current less than high-temperature superconductor 5, high-temperature superconductor 5 presented superconducting state (R1=0 this moment), and electric current passes through from high-temperature superconductor 5; When appearance surpasses the short circuit current of the critical current of high-temperature superconductor 5 in the electrical network, high-temperature superconductor 5 quench also present high resistance state (this moment, R1 sharply increased), short circuit current turns to from high value matrix 6 (R2) and passes through, because high value matrix 6 self-resistances are much bigger than the resistance of power line, thereby make the short circuit current in the electrical network be limited.If the open circuit fault electric current still can not effectively be limited, and when continuing to increase, if when fruit had surpassed the current limiting capacity of resistance-type high temperature superconductive power fault current limiter, then the resistance-type high temperature superconductive power fault current limiter might be formed by scorification and open circuit.
During the work of composite high temperature superconductive power fault flow restricter, if short-circuit current occurs in the fruit electrical network, at first resistance-type high temperature superconductive power fault current limiter 2 starts automatically, and fault current is limited; If fault current still can not effectively be limited; and electric current continues to increase; this moment magnetic saturation type high temperature superconductive power fault current limiter 1 automatically starting continue current limliting, and resistance-type high temperature superconductive power fault current limiter 2 formed protection avoid the generation of burning.The maintenance of combined high temperature superconductive failure current limiter can be carried out on-line maintenance to magnetic saturation type high temperature superconductive power fault current limiter or resistance-type high temperature superconductive power fault current limiter respectively by being attempted by the switch on the fault current limiter.
Beneficial effect of the present invention: 1, fast, the big current limitation ability of composite high temperature superconductive power fault current limiter response speed is strong and safe, has avoided weak shortcoming and the slow shortcoming of magnetic saturation type power failure current limiter response speed of the big current limitation ability of resistance-type power failure current limiter; 2, adopt high temperature superconductor technology, greatly reduce bias supply voltage and capacity, higher current density can be provided, satisfy the actual requirement of restriction short-circuit fault of power system electric current in large-capacity power transmission and the distribution network fully; 3, adopt high temperature superconductor technology, dwindled the volume of flow restricter greatly, improved the practicality of power failure flow restricter greatly; 4, adopt dual current-limiting protection, make the security insurance coefficient of electrical network get a greater increase; 5, by two switches in parallel on flow restricter, solved the online maintenance issues of actual high tc superconducting fault current limiter electrical network; 6, avoided fault current excessive, resistive current limiter can not recover and by the danger of being burnt.
Description of drawings
The overall circuit structural representation of Fig. 1 composite high temperature superconductive power fault current limiter, wherein, 1 is the magnetic saturation type high temperature superconductive power fault current limiter, 2 is the resistance-type high temperature superconductive power fault current limiter.
The structural representation of Fig. 2 magnetic saturation type high temperature superconductive power fault current limiter, 3,4 is the iron core reactor of two series connection.
The iron core-closed schematic diagram that Fig. 3 is made of two C sections cores.
The iron core-closed schematic diagram that Fig. 4 is made of two L sections cores.
The structural representation of Fig. 5 resistance-type high temperature superconductive power fault current limiter, wherein, 5 is high-temperature superconductor, and 6 is the high value matrix, and 7 is power line.
The schematic equivalent circuit of Fig. 6 resistance-type high temperature superconductive power fault current limiter.
The compound disc coil schematic diagram of Fig. 7.
Fig. 8 solenoid type coil schematic diagram.
Claims (9)
1, a kind of composite high temperature superconductive power fault current limiter, comprise magnetic saturation type high temperature superconductive power fault current limiter (1) and resistance-type high temperature superconductive power fault current limiter (2), it is characterized in that magnetic saturation type high temperature superconductive power fault current limiter (1) and resistance-type high temperature superconductive power fault current limiter (2) are in series.
2, a kind of composite high temperature superconductive power fault current limiter according to claim 1, it is characterized in that, described magnetic saturation type high temperature superconductive power fault current limiter (1) and resistance-type high temperature superconductive power fault current limiter (2) can be distinguished switch in parallel, so that composite high temperature superconductive power fault current limiter in use carries out on-line maintenance to magnetic saturation type high temperature superconductive power fault current limiter (1) or resistance-type high temperature superconductive power fault current limiter (2) respectively.
3, according to claim 1,2 described a kind of composite high temperature superconductive power fault current limiters, it is characterized in that, described magnetic saturation type high temperature superconductive power fault current limiter (1) is in series by two iron core reactors (3,4), and each iron core reactor is made up of closed magnetic core, elementary winding and secondary winding; Each closed magnetic core can be linked together by two C shape magnetic cores or two L shaped magnetic cores and constitute; Elementary winding is the coil of plain conductor coiled; Secondary winding is the coil by the high temperature super conductive conductor coiling, and places cooled containers; The direction of winding unanimity of two elementary windings, the direction of winding of two secondary winding opposite (or the direction of winding of two elementary windings is opposite, the direction of winding unanimity of two secondary winding).
4, a kind of composite high temperature superconductive power fault current limiter according to claim 3, it is characterized in that, described magnetic saturation type high temperature superconductive power fault current limiter (1) can also increase a monitoring coil on magnetic core, grasp the operating state of magnetic saturation type high temperature superconductive power fault current limiter (1) at any time with the operating current that passes through in the inductive primary winding.
5, a kind of composite high temperature superconductive power fault current limiter according to claim 3 is characterized in that, the loop construction of described secondary winding can be compound disc coil or solenoid type coil.
6, according to claim 1,2 described a kind of composite high temperature superconductive power fault current limiters, it is characterized in that, described resistance-type high temperature superconductive power fault current limiter (2) is a high-temperature superconductor element with higher relatively matrix resistance, and place cooled containers, comprise high value matrix (6) and high-temperature superconductor (5).
7, a kind of composite high temperature superconductive power fault current limiter according to claim 6 is characterized in that, described high-temperature superconductor (5) can be high-temperature superconductor bodies such as strip and block, film like, wire.
8, a kind of composite high temperature superconductive power fault current limiter according to claim 6 is characterized in that, described high value matrix (6) can be the metallic matrix with high resistivity.
9, according to claim 3,6 described a kind of composite high temperature superconductive power fault current limiters, it is characterized in that described cooled containers can be a Dewar bottle; The required cooling work environment of high-temperature superconductor can provide with the mode of refrigerating fluid refrigeration, also can provide with the mode of refrigeration machine refrigeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100222296A CN100385762C (en) | 2005-12-06 | 2005-12-06 | Composite high temperature superconductive power fault current limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100222296A CN100385762C (en) | 2005-12-06 | 2005-12-06 | Composite high temperature superconductive power fault current limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1790853A true CN1790853A (en) | 2006-06-21 |
| CN100385762C CN100385762C (en) | 2008-04-30 |
Family
ID=36788440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100222296A Expired - Fee Related CN100385762C (en) | 2005-12-06 | 2005-12-06 | Composite high temperature superconductive power fault current limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100385762C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521374B (en) * | 2008-11-18 | 2011-01-12 | 李晓明 | Short-circuit current limiting device of magnetic saturation reactor |
| CN102376411A (en) * | 2010-07-02 | 2012-03-14 | 布鲁克Hts有限公司 | Method for current conditioning, in particular on a fault current limiter |
| CN102684308A (en) * | 2012-05-18 | 2012-09-19 | 上海交通大学 | Superconducting state information-based power distribution network self-healing system and method |
| CN102684466A (en) * | 2011-11-29 | 2012-09-19 | 北京科诺伟业科技有限公司 | Low-voltage ride-through bus voltage device of driver |
| CN101741074B (en) * | 2008-11-12 | 2012-11-14 | 苏俊连 | Ship electricity fault current restrictor |
| CN103337850A (en) * | 2013-05-24 | 2013-10-02 | 西安交通大学 | High-voltage DC gas breaker with wide current range |
| 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 |
| CN103633632A (en) * | 2013-11-16 | 2014-03-12 | 中国科学院电工研究所 | Saturated bridge type short circuit fault current limiter |
| CN106385018A (en) * | 2016-10-27 | 2017-02-08 | 华中科技大学 | Shortcircuit fault current limiter |
| CN114844072A (en) * | 2022-05-18 | 2022-08-02 | 华北电力大学 | Wind energy system based on superconducting energy storage-composite current limiter and working method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3925707A (en) * | 1973-10-17 | 1975-12-09 | Westinghouse Electric Corp | High voltage current limiting circuit breaker utilizing a super conductive resistance element |
| CN1635642A (en) * | 2003-12-26 | 2005-07-06 | 北京云电英纳超导电缆有限公司 | Controllable resistor type superconducting fault current limiter |
| CN100345319C (en) * | 2003-12-26 | 2007-10-24 | 北京云电英纳超导电缆有限公司 | Superconducting saturable core fault current limiter |
-
2005
- 2005-12-06 CN CNB2005100222296A patent/CN100385762C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741074B (en) * | 2008-11-12 | 2012-11-14 | 苏俊连 | Ship electricity fault current restrictor |
| CN101521374B (en) * | 2008-11-18 | 2011-01-12 | 李晓明 | Short-circuit current limiting device of magnetic saturation reactor |
| CN102376411A (en) * | 2010-07-02 | 2012-03-14 | 布鲁克Hts有限公司 | Method for current conditioning, in particular on a fault current limiter |
| CN102376411B (en) * | 2010-07-02 | 2015-09-30 | 布鲁克Hts有限公司 | For the method for the Current adjustment in Current adjustment, especially fault current limiter |
| CN102684466A (en) * | 2011-11-29 | 2012-09-19 | 北京科诺伟业科技有限公司 | Low-voltage ride-through bus voltage device of driver |
| CN102684308B (en) * | 2012-05-18 | 2014-12-24 | 上海交通大学 | Superconducting state information-based power distribution network self-healing system and method |
| CN102684308A (en) * | 2012-05-18 | 2012-09-19 | 上海交通大学 | Superconducting state information-based power distribution network self-healing system and method |
| CN103337850A (en) * | 2013-05-24 | 2013-10-02 | 西安交通大学 | High-voltage DC gas breaker with wide current range |
| CN103337850B (en) * | 2013-05-24 | 2016-05-04 | 西安交通大学 | A kind of HVDC gas-break switch with wide-range current |
| 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 |
| CN103633632A (en) * | 2013-11-16 | 2014-03-12 | 中国科学院电工研究所 | Saturated bridge type short circuit fault current limiter |
| CN103633632B (en) * | 2013-11-16 | 2016-10-19 | 中国科学院电工研究所 | A kind of saturated bridge type short circuit fault current limiter |
| CN106385018A (en) * | 2016-10-27 | 2017-02-08 | 华中科技大学 | Shortcircuit fault current limiter |
| CN106385018B (en) * | 2016-10-27 | 2019-04-23 | 华中科技大学 | A kind of short-circuit fault current limiter |
| CN114844072A (en) * | 2022-05-18 | 2022-08-02 | 华北电力大学 | Wind energy system based on superconducting energy storage-composite current limiter and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100385762C (en) | 2008-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100385762C (en) | Composite high temperature superconductive power fault current limiter | |
| Ye et al. | Modeling and simulation of high temperature resistive superconducting fault current limiters | |
| CN102687216B (en) | Fault current limiters (FCL) with the cores saturated by non-superconducting coils | |
| CN102684179B (en) | Hybrid short-circuit failure current limiter | |
| Sotelo et al. | A review of superconducting fault current limiters compared with other proven technologies | |
| CN101789589B (en) | Mixed-type high-temperature superconducting short trouble current limiter | |
| CN202840498U (en) | Novel magnetic-shielding air core transformer coupling bridge type solid-state current limiter | |
| CN101710698A (en) | Permanent-magnetic AC reactor current restrictor | |
| CN110071492A (en) | A kind of bridge type Coupled Superconducting direct current limiter and method | |
| Ito et al. | 6.6 kV/1.5 kA-class superconducting fault current limiter development | |
| Tixador et al. | Hybrid superconducting AC fault current limiter principle and previous studies | |
| CN202930433U (en) | Superconductive current limiter unit module with double-sided YBCO film structure | |
| Shirai et al. | Current limiting performance of three-phase concentric transformer type SFCL at unbalanced fault conditions | |
| CN100464476C (en) | Superconducting hybrid current limiting switch | |
| CN102956809B (en) | The superconductive current limiter unit module of two-sided ybco film structure | |
| Sharma et al. | Basic concepts of superconducting fault current limiter | |
| CN201556934U (en) | Permanent-magnetic alternating-current reactor-type current limiter | |
| CN100495854C (en) | Short-circuit fault current limiter | |
| Zhang et al. | Current limiting and recovery characteristics of an AC fast recovery superconducting fault current-limiting breaker | |
| CN103887782A (en) | Hybrid type flux coupling superconduction fault current limiter and current limitation method | |
| CN201887459U (en) | Combined type superconducting fault current-limit device with self-protection function | |
| CN203932992U (en) | A kind of mixed type magnetic flux Coupled Superconducting fault current limiter | |
| Endo et al. | Development of a superconducting fault current limiter using various high-speed circuit breakers | |
| Shirai et al. | Study on recovery time of a superconducting fault current limiter with adjustable trigger current level | |
| WO2014101286A1 (en) | On-load tap-changer with thyristor auxiliary and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20101206 |