CN104333001B - Distributed series-coupled type power flow controller - Google Patents
Distributed series-coupled type power flow controller Download PDFInfo
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- CN104333001B CN104333001B CN201410697380.9A CN201410697380A CN104333001B CN 104333001 B CN104333001 B CN 104333001B CN 201410697380 A CN201410697380 A CN 201410697380A CN 104333001 B CN104333001 B CN 104333001B
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- coupling transformer
- iron core
- igct
- control
- cabin
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- 238000010168 coupling process Methods 0.000 claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 claims abstract description 48
- 230000008878 coupling Effects 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 53
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 claims description 9
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 6
- 239000005300 metallic glass Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a distributed series-coupled type power flow controller comprising a control cabin, a coupling transformer cabin, a power-taking current transformer, an IGBT assembly, a control box and a coupling transformer, wherein the control cabin and the coupling transformer cabin are of an integral ladder structure, and the integral ladder structure consists of an upper shell and a lower shell and can be opened and closed; the power-taking current transformer, the IGBT assembly and the control box are arranged in the control cabin, and the coupling transformer is arranged in the coupling transformer cabin; and the control cabin and the coupling transformer cabin are made of an aluminum alloy material. According to the distributed series-coupled type power flow controller provided by the invention, insert of electrical reactance or capacitive reactance can be performed by virtue of a transformer coupling mode, a primary side winding of the coupling transformer is a single-turn power transmission line, and the coupling transformer is provided with a plurality of turns of secondary windings; the distributed series-coupled type power flow controller can perform rapid control by virtue of a solid-state combination switch, does not need to disconnect the power transmission line and change an original line structure, does not have space occupation requirements, achieves local control, is simple and flexible, is easy to assemble, can be repeatedly used in different lines, and can be used for greatly reducing the construction cost and running cost compared with a centralized FACTS device.
Description
Technical field
The present invention relates to a kind of controller, be specifically related to a kind of distributed serial coupled mode flow controller.
Background technology
The product that FACTS (FACTS) is modern power electronics technology to combine with tradition power flowcontrol technology, is the strong technical support that strides forward to intelligent grid of tradition electrical network.It utilizes large power power electronic appliance to replace various traditional mechanical type adjusting meanss and high-voltage switch gear, make three main electrical parameters (voltage, line impedance and merit angle) affecting trend distribution in power system can be adjusted according to the instruction of system coordinator, realize conveying power reasonable distribution in electrical network and the conservative control of each node voltage, reduce power attenuation and cost of electricity-generating, increase substantially stability and the reliability of system.
National grid has been widely used the associate power equipment of FACTS technology, compensating capacitor (TCSC), SVC (SVC), controllable parallel reactors (CSR) and STATCOM (STATCOM) etc. including transistor controlling series, these FCATS devices have played extremely important effect to the safe and stable operation of electrical network.But FACTS functions of the equipments are various, structure is complicated, floor space is bigger; one-time investment cost is high; daily operation management and the professional and technical personnel of Maintenance and Repair are required the highest, and the reliability that in FACTS device, the parts such as Control protection system, power electronic devices and cooling system are current is the most very good.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention provides a kind of distributed serial coupled mode flow controller, the insertion of reactance or capacitive reactance is carried out by transformer-coupled mode, the first side winding of coupling transformer is single turn transmission line of electricity, secondary has multiturn, quick control is carried out by solid combination switch, without disconnecting transmission line of electricity, without changing original line construction, need without taking up an area, control on the spot, simple and flexible, being easily installed and can reuse at different circuits, cost and operating cost more centralized FACTS device are substantially reduced.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that:
The present invention provides a kind of distributed serial coupled mode flow controller, and described controller includes control cabinet, coupling transformer cabin, takes energy current transformer, IGBT assembly, control box and coupling transformer；Described control cabinet and coupling transformer cabin are integral type hierarchic structure, it is made up of upper shell and lower house and can open and close, described energy current transformer, IGBT assembly and the control box of taking is arranged in described control cabinet, and described coupling transformer is arranged in described coupling transformer cabin；Described control cabinet and coupling transformer cabin use aluminum alloy materials to make.
Described coupling transformer is arranged on the lower house in coupling transformer cabin by insulated support.
Described taking can be fixed on the lower house of control cabinet by insulated leg by current transformer.
Described IGBT assembly includes metal oxide pressure-limiting device, catalyst, IGCT, the first IGCT copper bar, the second IGCT copper bar, the 3rd IGCT copper bar, electric capacity pressing plate, Absorption Capacitance, absorption resistance and installing plate；Described metal oxide pressure-limiting device, catalyst and IGCT are fixed by the first IGCT copper bar, the second IGCT copper bar and the 3rd IGCT copper bar parallel connection, and it is fixing on a mounting board by screw assemblies, described absorption resistance and Absorption Capacitance are connected in parallel on described IGCT two ends, after described electric capacity pressing plate is fixing, fixing on a mounting board by assembling bolt, described installing plate is fixed on the lower house of control cabinet by assembling bolt.
Described control box is arranged on the lower house of control cabinet, sets power circuit, control circuit and wireless communication module inside it, and described control circuit includes thyristor driving circuit and contactor drive circuit；Described wireless communication module receives the control command of distant place control centre, control circuit and wireless communication module communication, obtain control command, and according to control command, brilliant lock and catalyst are carried out folding control, thus realize the input of distributed serial coupled mode flow controller and exit.
The first side winding of described coupling transformer is single turn transmission pressure, secondary side parallel connection metal oxide pressure-limiting device, catalyst and IGCT.
Parameter according to transmission pressure and the compensation capacity of separate unit distributed serial coupled mode flow controller determine parameter and the material of coupling transformer；The parameter of transmission pressure includes electric pressure, wire type, specified transmission capacity and overcurrent.
The iron core of described coupling transformer is cylindric, it includes the first iron core block and the second iron core block, transmission pressure is placed in the middle of the first iron core block and the second iron core block, and as a winding of coupling transformer, and the first iron core block and the second iron core block closely engage and make magnetic circuit close；Described first iron core block and the second iron core block use annular non-crystaline amorphous metal material to make.
The described iron core taking energy current transformer includes three-iron pellet and the 4th iron core block, transmission pressure is placed in the middle of three-iron pellet and the 4th iron core block, as the winding taking energy current transformer, on iron core the enamel-covered wire of coiling as take can the Secondary Winding of current transformer, power circuit is attempted by Secondary Winding.
Described controller is fixed on transmission pressure by circuit clamping press plate and circuit clamping seats, and its two ends are provided with sealing member；Described sealing member uses quality of rubber materials, is provided with groove inside it.
Compared with prior art, the beneficial effects of the present invention is:
1. the distributed serial coupled mode flow controller that the present invention provides, its volume is little, lightweight, removable and distributing installation, with low cost；
2. it is applicable to the power flowcontrol of below 500kV power transmission network, there is especially for the power flow regulating of 220kV, 110kV ring network power supply network the effect of highly significant；
3. this distributed serial coupled mode flow controller entire length controls within 1m, and diameter is less than 200mm, can be suitably used for single transmission pressure and the power flowcontrol of split conductor；
4. this distributed serial coupled mode flow controller is easily installed, it is not necessary to disconnect transmission line of electricity, it is not necessary to change original line construction, needs without taking up an area, controls on the spot, compact conformation.
Accompanying drawing explanation
Fig. 1 is distributed serial coupled mode flow controller schematic diagram in the embodiment of the present invention；
Fig. 2 is distributed serial coupled mode flow controller structure chart in the embodiment of the present invention；
Fig. 3 is IGBT assembly front view in the embodiment of the present invention；
Fig. 4 is IGBT component left view in the embodiment of the present invention；
Fig. 5 is thyristor driving circuit figure in the embodiment of the present invention；
Fig. 6 is contactor drive circuit figure in the embodiment of the present invention；
Fig. 7 is coupling transformer core structure figure in the embodiment of the present invention；
Wherein, 1-takes energy current transformer, 2-insulated leg, 3-upper shell, 4-coupling transformer, 5-circuit clamping press plate, 6-sealing member, 7-circuit clamping seats, 8-insulated support, 9-lower house, 10-controls box, 11-IGBT assembly, 12-control cabinet, 13-metal oxide pressure-limiting device, 14-the first IGCT copper bar, 15-the second IGCT copper bar, 16-the 3rd IGCT copper bar, 17-electric capacity pressing plate, 18-Absorption Capacitance, 19-absorption resistance, 20-installing plate, 21-catalyst, 22-IGCT, 23-the first iron core block, 24-the second iron core block, 25-coupling transformer cabin.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Such as Fig. 1 and Fig. 2, the present invention provides a kind of distributed serial coupled mode flow controller, and described controller includes control cabinet 12, coupling transformer cabin 25, takes energy current transformer 1, IGBT assembly 11, control box 10 and coupling transformer 4；Described control cabinet 12 and coupling transformer cabin 25 are integral type hierarchic structure, it is made up of upper shell 3 and lower house 9 and can open and close, described energy current transformer 1, IGBT assembly 11 and the control box 10 of taking is arranged in described control cabinet 12, and described coupling transformer 4 is arranged in described coupling transformer cabin 25；Described control cabinet 12 and coupling transformer cabin 25 use aluminum alloy materials to make.
Described coupling transformer 4 is arranged on the lower house 9 in coupling transformer cabin 25 by insulated support 8.
Described taking can be fixed on the lower house 9 of control cabinet 12 by insulated leg 2 by current transformer 1.
Such as Fig. 3 and Fig. 4, described IGBT assembly 11 includes metal oxide pressure-limiting device 13, catalyst 21, IGCT the 22, first IGCT copper bar the 14, second IGCT copper bar the 15, the 3rd IGCT copper bar 16, electric capacity pressing plate 17, Absorption Capacitance 18, absorption resistance 19 and installing plate 20；Described metal oxide pressure-limiting device 13, catalyst 21 and IGCT 22 are in parallel fixing by first IGCT copper bar the 14, second IGCT copper bar 15 and the 3rd IGCT copper bar 16, and be fixed on installing plate 20 by screw assemblies, described absorption resistance 19 and Absorption Capacitance 18 are connected in parallel on described IGCT 22 two ends, after described electric capacity pressing plate 17 is fixing, being fixed on installing plate 20 by assembling bolt, described installing plate 20 is fixed on the lower house 9 of control cabinet 12 by assembling bolt.
Described control box 10 is arranged on the lower house 9 of control cabinet 12, power circuit, control circuit and wireless communication module is set inside it, described wireless communication module receives the control command of distant place control centre, control circuit and wireless communication module communication, obtain control command, and according to control command, brilliant lock and catalyst 21 are carried out folding control, thus realize the input of distributed serial coupled mode flow controller and exit.
Control circuit includes thyristor driving circuit (such as Fig. 5) and contactor drive circuit (such as Fig. 6).
When needing to put into reactance, trigger circuit in positive half cycles forward parallel thyristors and send out positive triggering pulse, IGCT forward conduction, send out negative triggering pulse in negative half period ripple reverse parallel connection thyristor gating circuit, IGCT reverse-conducting, after IGCT two-way admittance, is disconnected catalyst by control contactor coil L1, IGCT stops conducting, puts into reactance.When need not put into reactance, trigger circuit in positive half cycles forward parallel thyristors and send out positive triggering pulse, IGCT forward conduction, send out negative triggering pulse in negative half period ripple reverse parallel connection thyristor gating circuit, IGCT reverse-conducting, after IGCT two-way admittance, is closed catalyst by control contactor coil L2, IGCT stops conducting, exits reactance.
Parameter according to transmission pressure and the compensation capacity of separate unit distributed serial coupled mode flow controller determine parameter and the material of coupling transformer 4；The parameter of transmission pressure includes electric pressure, wire type, specified transmission capacity and overcurrent.
Such as Fig. 7, the iron core of described coupling transformer 4 is cylindric, it includes the first iron core block 23 and the second iron core block 24, transmission pressure is placed in the middle of the first iron core block 23 and the second iron core block 24, as a winding of coupling transformer 4, and the first iron core block 23 and the second iron core block 24 closely engage and make magnetic circuit close；First iron core block 23 is the most smooth with the snap-latch surface of the second iron core block 24, and in the case of iron core closes, air gap is the least, then the overall leakage reactance of iron core is little, and when distributed serial coupled mode flow controller exits, the reactance on circuit does not affect.Described first iron core block 23 and the second iron core block 24 use annular non-crystaline amorphous metal material to make, the iron core using this material of non-crystaline amorphous metal to make is lighter than the iron core weight using traditional silicon steel disc to make, length is short, more can be adapted to the transmission pressure of single conductor and bundle conductor configuration.
The described iron core taking energy current transformer 1 includes three-iron pellet and the 4th iron core block, transmission pressure is placed in the middle of three-iron pellet and the 4th iron core block, as the winding taking energy current transformer 1, on iron core, the enamel-covered wire of coiling is as the Secondary Winding taking energy current transformer 1, power circuit is attempted by Secondary Winding, and power circuit is powered to control circuit, catalyst 21.
Described controller is fixed on transmission pressure by circuit clamping press plate 5 and circuit clamping seats 7, and its two ends are provided with sealing member 6；Described sealing member 6 uses quality of rubber materials, is provided with groove inside it, if having foreign material or rain erosion, foreign material and rainwater can be trapped in first groove, each groove is respectively formed one layer of protection.The transmission line of electricity set up for steel-cored aluminium strand, there is gap in conductive line surfaces, uses multi-layer sealed energy to meet under severe outdoor environment the most affected by environment inside guarantee DSR device.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit; the detailed description of the invention of the present invention still can be modified or equivalent by those of ordinary skill in the field with reference to above-described embodiment; these are without departing from any amendment of spirit and scope of the invention or equivalent, within the claims of the present invention all awaited the reply in application.
Claims (1)
1. a distributed serial coupled mode flow controller, it is characterised in that: described controller includes control cabinet, coupling transformer cabin, takes energy current transformer, IGBT assembly, control box and coupling transformer；Described control cabinet and coupling transformer cabin are integral type hierarchic structure, it is made up of upper shell and lower house and can open and close, described energy current transformer, IGBT assembly and the control box of taking is arranged in described control cabinet, described coupling transformer is arranged in described coupling transformer cabin, and described control cabinet and coupling transformer cabin use aluminum alloy materials to make；
Described coupling transformer is arranged on the lower house in coupling transformer cabin by insulated support；
Described taking can be fixed on the lower house of control cabinet by insulated leg by current transformer；
Described IGBT assembly includes metal oxide pressure-limiting device, catalyst, IGCT, the first IGCT copper bar, the second IGCT copper bar, the 3rd IGCT copper bar, electric capacity pressing plate, Absorption Capacitance, absorption resistance and installing plate；Described metal oxide pressure-limiting device, catalyst and IGCT are fixed by the first IGCT copper bar, the second IGCT copper bar and the 3rd IGCT copper bar parallel connection, and it is fixing on a mounting board by screw assemblies, described absorption resistance and Absorption Capacitance are connected in parallel on described IGCT two ends, after described electric capacity pressing plate is fixing, fixing on a mounting board by assembling bolt, described installing plate is fixed on the lower house of control cabinet by assembling bolt；
Described control box is arranged on the lower house of control cabinet, sets power circuit, control circuit and wireless communication module inside it, and described control circuit includes thyristor driving circuit and contactor drive circuit；Described wireless communication module receives the control command of distant place control centre, control circuit and wireless communication module communication, obtain control command, and according to control command, IGCT and catalyst carried out folding control, thus realize the input of distributed serial coupled mode flow controller and exit；
The first side winding of described coupling transformer is single turn transmission pressure, secondary side parallel connection metal oxide pressure-limiting device, catalyst and IGCT；
Parameter according to transmission pressure and the compensation capacity of separate unit distributed serial coupled mode flow controller determine parameter and the material of coupling transformer；The parameter of transmission pressure includes electric pressure, wire type, specified transmission capacity and overcurrent；
The iron core of described coupling transformer is cylindric, it includes the first iron core block and the second iron core block, transmission pressure is placed in the middle of the first iron core block and the second iron core block, and as a winding of coupling transformer, and the first iron core block and the second iron core block closely engage and make magnetic circuit close；Described first iron core block and the second iron core block use annular non-crystaline amorphous metal material to make；
The described iron core taking energy current transformer includes three-iron pellet and the 4th iron core block, transmission pressure is placed in the middle of three-iron pellet and the 4th iron core block, as the winding taking energy current transformer, on iron core the enamel-covered wire of coiling as take can the Secondary Winding of current transformer, power circuit is attempted by Secondary Winding；
Described controller is fixed on transmission pressure by circuit clamping press plate and circuit clamping seats, and its two ends are provided with sealing member；Described sealing member uses quality of rubber materials, is provided with groove inside it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697380.9A CN104333001B (en) | 2014-11-26 | 2014-11-26 | Distributed series-coupled type power flow controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697380.9A CN104333001B (en) | 2014-11-26 | 2014-11-26 | Distributed series-coupled type power flow controller |
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| Publication Number | Publication Date |
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| CN104333001A CN104333001A (en) | 2015-02-04 |
| CN104333001B true CN104333001B (en) | 2017-01-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711943A (en) * | 2016-12-26 | 2017-05-24 | 中电普瑞科技有限公司 | Protection device and method for distributed series-coupled power flow controller |
| CN109193959B (en) * | 2018-09-21 | 2024-09-17 | 全球能源互联网研究院有限公司 | Current transformer for energy taking and static synchronous series compensation device using same |
| CN113497446B (en) * | 2021-01-09 | 2023-08-18 | 华北电力大学（保定） | 110kV and above voltage class single-phase electromagnetic series type transmission line current control topological circuit |
| CN113541145B (en) * | 2021-01-09 | 2023-08-18 | 华北电力大学（保定） | 110kV and above voltage class three-phase electromagnetic series type transmission line current control topological circuit |
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| KR101778078B1 (en) * | 2012-08-28 | 2017-09-13 | 스마트 와이어스 인코포레이티드 | Power line reactance module and applications |
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2014
- 2014-11-26 CN CN201410697380.9A patent/CN104333001B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 一种分布式潮流控制方法研究;唐爱红等;《电力系统保护与控制》;20110816;第39卷(第16期);第89-94页 * |
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| CN104333001A (en) | 2015-02-04 |
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Effective date of registration: 20170524 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: China Electric Prime Technology Co., Ltd. Patentee after: State Grid Corporation of China Co-patentee after: Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: State Grid Smart Grid Institute Patentee before: State Grid Corporation of China Co-patentee before: China Electric Prime Technology Co., Ltd. Co-patentee before: Electric Power Research Institute of State Grid Liaoning Electric Power Co., Ltd. |