CN202696154U - Dynamic reactive voltage regulating device used for high-voltage line - Google Patents
Dynamic reactive voltage regulating device used for high-voltage line Download PDFInfo
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- CN202696154U CN202696154U CN2012203183265U CN201220318326U CN202696154U CN 202696154 U CN202696154 U CN 202696154U CN 2012203183265 U CN2012203183265 U CN 2012203183265U CN 201220318326 U CN201220318326 U CN 201220318326U CN 202696154 U CN202696154 U CN 202696154U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model provides a dynamic reactive voltage regulating device used for a high-voltage line. The dynamic reactive voltage regulating device used for the high-voltage line comprises N magnetic control electric reactor branch circuits, N fixed capacitor branch circuits, N lightning arrester branch circuits, N outdoor high-voltage falling type fuses, a outdoor high-voltage line current transformer and a controller. Each magnetic control electric reactor branch circuit is formed by a magnetic control electric reactor and provided with a current transformer; after a number n magnetic control electric reactor branch circuit is connected with a number n fixed capacitor branch circuit and a number n lightning arrester branch circuit in parallel, the number n magnetic control electric reactor branch circuit is connected to an outdoor high-voltage bus in a hanging mode through a number n outdoor high-voltage falling type fuse; the outdoor high-voltage line current transformer is connected with an outdoor high-voltage bus loop in series; the current transformer in each magnetic control electric reactor branch circuit and the outdoor high-voltage line current transformer is connected with an output end of the controller, and the output end of the controller is connected with each magnetic control electric reactor. The dynamic reactive voltage regulating device used for the high-voltage line can achieve dynamic compensation of reactive capacity and smooth stepless regulation, and is free from switching, safe and reliable, and remarkable in line loss energy conservation.
Description
Technical field
The utility model relates to a kind of line voltage distribution automatic regulating equipment, particularly relates to a kind of dynamic reactive voltage regulating device for high-tension line.
Background technology
Be compared to urban distribution network, China's rural power grids have its particularity, and the rural area area is wide, and electricity consumption is not concentrated, and exists the problems such as electric network composition is unreasonable, radius of electricity supply is large, feeder line is long, conductor cross-section is thin, reactive power compensation scarce capacity.Because a large amount of agricultural machinery is used in agricultural production, agricultural machinery nearly all is inductive load, and the idle ratio of load is large, causes rural power grids idle seriously polluted, and reliability is subject to great impact.The simultaneously use of agricultural machinery is not long-term fixing, but according to the agricultural production time at times with the use in season, cause the reactive requirement amount of rural power grids often to fluctuate, and fluctuation range is large.Owing to above reason, the most rural power grids electrical network of China presents following notable feature: the one, and rural power grids are aging soon, the quality of power supply is poor, power supply is unstable; The 2nd, Energy Loss in Rural Power Network is large, and fault is many, and Transmission Cost is high.
Rural power grids because be subjected to that above-mentioned radius of electricity supply, daily load change, season the factors such as load variations, load skewness impact, larger fluctuation appears in each bar line voltage distribution, brownout can cause equipment undercapacity even cisco unity malfunction, and overtension can affect the equipment Electrical Safety.Therefore, how to guarantee that the rural power grids quality of voltage becomes the matter of utmost importance that solves the rural power grids problem.
At present, the control method that line voltage is commonly used mainly contains two kinds: the one, by adjusting the pressure regulation of main transformer of transformer substation load tap changer, the foundation of regulating can only be as benchmark take substation bus bar voltage, can not guarantee the voltage stabilization of each bar circuit, and it is larger on the safe operation impact of main transformer frequently to adjust the main transformer tap; Another kind method is to adopt the regulative mode of grouping switching capacitor group, but its reactive power compensation is discontinuous, and level is arranged, and can not obtain desirable compensation effect.In peak times of power consumption, there is the capacitor group of level often not reach compensation capacity; And in low power consumption, even idle phenomenon appears sending repeatedly.Shoving that switch on-off electric capacity causes is all extremely harmful to system and equipment itself with overvoltage, because the idle variation of rural power grids is fast, the frequent switching of capacitor is so that capacitor life-span shortens again, capacitor often damages, and seriously reduces the rural power grids quality of power supply and power supply reliability.
This shows, above-mentioned existing reactive voltage adjusting device for high-tension line structure with use, obviously still have inconvenience and defective, and demand urgently further being improved.How to found a kind of dynamic compensation and level and smooth step-less adjustment that realizes reactive capability, and the capacitor group need not switching in the idle adjustment process, thereby solve in rural power grids and the small hydropower station transmission line because the voltage fluctuation problem that long distance powedr transmission causes, improve the new dynamic reactive voltage regulating device that is used for high-tension line of rural power grids and the small power station transmission of electricity quality of power supply and power supply reliability, the current industry utmost point of real genus needs improved target.
The utility model content
The technical problems to be solved in the utility model provides a kind of dynamic reactive voltage regulating device for high-tension line, make its dynamic compensation that can realize reactive capability and level and smooth step-less adjustment, and the capacitor group need not switching in the idle adjustment process, thereby solve in rural power grids and the small hydropower station transmission line because the voltage fluctuation problem that long distance powedr transmission causes, improve rural power grids and the small power station transmission of electricity quality of power supply and power supply reliability, overcome the deficiency of existing reactive voltage adjusting device.
For solving the problems of the technologies described above, a kind of dynamic reactive voltage regulating device for high-tension line of the utility model, comprise N magnet controlled reactor branch road, fixed capacitor branch road, lightning arrester branch road, outdoor high-voltage drop type fuse and an outdoor high-voltage line current instrument transformer and a controller, N is positive integer, wherein: each magnet controlled reactor props up the route magnet controlled reactor and forms, and all is equiped with current transformer; Behind n magnet controlled reactor branch road and n fixed capacitor branch road, the n lightning arrester branch circuit parallel connection, be articulated on the outdoor high-voltage bus n=1,2 by the n outdoor high-voltage drop type fuse ... N; Outdoor high-voltage line current instrument transformer is serially connected with in the outdoor high-voltage bus bar circuit; The secondary side of the current transformer of each magnet controlled reactor branch road and outdoor high-voltage line current instrument transformer links to each other with the signal input part of controller, and the signal output part of controller links to each other with each magnet controlled reactor.
As a kind of improvement of the present utility model, described each fixed capacitor branch road is to be formed by series reactor unshakable in one's determination and capacitor's seriesu.
Described controller adopts the Digital Signal Processing controller.
Described outdoor high-voltage line current instrument transformer adopts open type electric power Current Transformer.
Described magnet controlled reactor is the pole magnet controlled reactor.
After adopting such design, the utility model provides a kind of pole MCR molded line road dynamic reactive voltage regulating device for high-tension line, guarantee that by the idle output of automatic adjusting line voltage distribution is stable, utilize dynamic compensation and the level and smooth step-less adjustment of pole MCR magnet controlled reactor realization in parallel with capacitor group reactive capability, the capacitor group need not switching in the idle adjustment process, install safe and reliable to operation, non-maintaining, unattended operation, the dynamic step-less adjustment of capacity, the line loss obvious energy conservation, adapting to adverse circumstances uses, be specially adapted to the circuit that scope range of the fluctuation of voltage is large or pressure drop is large, pole MCR circuit automatic pressure regulating device is installed on the middle rear end of feeder line, certain limit can in line voltage distribution is adjusted automatically, guarantee rural power grids customer power supply quality of voltage, reduce line loss, also be applicable to small hydropower station transmission line voltage power-less dynamic compensation, solved small hydropower station owing to be in remote districts, circuit is long, line loss is large, the tradition reactive power compensator all is not suitable with the difficult problem of its load variations characteristics, and invests little, return rate is high.
Description of drawings
Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding technological means of the present utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the circuit connection diagram of the utility model dynamic reactive voltage regulating device.
Fig. 2 is the structural representation of the utility model dynamic reactive voltage regulating device.
Embodiment
See also Fig. 1, shown in Figure 2, a kind of dynamic reactive voltage regulating device for high-tension line of the utility model, comprise N magnet controlled reactor branch road, fixed capacitor branch road, lightning arrester branch road, outdoor high-voltage drop type fuse and an outdoor high-voltage line current instrument transformer and a controller, wherein N is positive integer.
Each magnet controlled reactor props up route magnet controlled reactor (MCR) 6 and forms, preferred pole MCR magnet controlled reactor, and be equiped with current transformer.Each fixed capacitor branch road is to be in series with capacitor 5 by series reactor 4 unshakable in one's determination.Each lightning arrester branch road is comprised of lightning arrester 3 respectively.Controller 7 can adopt the Digital Signal Processing controller.1 preferred open type electric power Current Transformer of outdoor high-voltage line current instrument transformer.
Behind n magnet controlled reactor branch road and n fixed capacitor branch road, the n lightning arrester branch circuit parallel connection, be articulated on the outdoor high-voltage bus n=1 wherein, 2 by the n outdoor high-voltage drop type fuse ... N.Outdoor high-voltage line current instrument transformer 1 is serially connected with in the outdoor high-voltage bus bar circuit, the secondary side of the current transformer of each magnet controlled reactor branch road and outdoor high-voltage line current instrument transformer 1 links to each other with the signal input part of controller 7, and the signal output part of controller 7 links to each other with the magnet controlled reactor 6 of magnet controlled reactor branch road.
The utility model is used the dynamic reactive voltage adjusting method of said apparatus, to provide reactive power by two parts for the outdoor high-voltage bus, the one, the capacitive reactive power of the fixed capacity that the fixed capacitor branch road provides, the 2nd, the magnet controlled reactor branch road is according to the high-tension line load variations and the variable perception of via controller dynamic adjustments output is idle, high-tension line is idle to tend to balance thereby make, stablized line voltage distribution, reduced power loss, improve power factor, reached the purpose of dynamic passive compensation.
In this process, controller 7 at first carries out the collection of voltage of high-voltage line, current parameters by outdoor high-voltage line current instrument transformer, and then calculate the instantaneous values such as system power factor, active power, reactive power, and the calculating of process instantaneous reactive control algolithm, draw the pilot angle set-point that magnet controlled reactor need to be regulated, the signal output part of via controller 7 is sent to the magnet controlled reactor branch road again, just can dynamic adjustments magnet controlled reactor branch road the perceptual reactive capability of output.
The utility model discloses a kind of pole MCR type dynamic reactive voltage regulating device that is applied in the electric power system high pressure electric line, utilize pole MCR magnet controlled reactor in parallel with the capacitor group, dynamic compensation and the level and smooth step-less adjustment of line system reactive capability have been realized, and the fixed capacitor branch road need not switching in the idle adjustment process, package unit fast response time, safe and reliable to operation, non-maintaining, unattended operation, adapt to adverse circumstances and use, solved in the transmission line because the problem of the voltage fluctuation that long distance powedr transmission causes.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection range of the present utility model.
Claims (5)
1. dynamic reactive voltage regulating device that is used for high-tension line, it is characterized in that comprising N magnet controlled reactor branch road, fixed capacitor branch road, lightning arrester branch road, outdoor high-voltage drop type fuse and an outdoor high-voltage line current instrument transformer and a controller, N is positive integer, wherein:
Each magnet controlled reactor props up the route magnet controlled reactor and forms, and is equiped with current transformer;
Behind n magnet controlled reactor branch road and n fixed capacitor branch road, the n lightning arrester branch circuit parallel connection, be articulated on the outdoor high-voltage bus n=1,2 by the n outdoor high-voltage drop type fuse ... N;
Outdoor high-voltage line current instrument transformer is serially connected with in the outdoor high-voltage bus bar circuit;
The secondary side of the current transformer of each magnet controlled reactor branch road and outdoor high-voltage line current instrument transformer links to each other with the signal input part of controller, and the signal output part of controller links to each other with each magnet controlled reactor.
2. a kind of dynamic reactive voltage regulating device for high-tension line according to claim 1 is characterized in that described each fixed capacitor branch road is to be formed by series reactor unshakable in one's determination and capacitor's seriesu.
3. a kind of dynamic reactive voltage regulating device for high-tension line according to claim 1 is characterized in that described controller adopts the Digital Signal Processing controller.
4. a kind of dynamic reactive voltage regulating device for high-tension line according to claim 1 is characterized in that described outdoor high-voltage line current instrument transformer adopts open type electric power Current Transformer.
5. a kind of dynamic reactive voltage regulating device for high-tension line according to claim 1 is characterized in that described magnet controlled reactor is the pole magnet controlled reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203183265U CN202696154U (en) | 2012-07-03 | 2012-07-03 | Dynamic reactive voltage regulating device used for high-voltage line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203183265U CN202696154U (en) | 2012-07-03 | 2012-07-03 | Dynamic reactive voltage regulating device used for high-voltage line |
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| Publication Number | Publication Date |
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| CN202696154U true CN202696154U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012203183265U Expired - Fee Related CN202696154U (en) | 2012-07-03 | 2012-07-03 | Dynamic reactive voltage regulating device used for high-voltage line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723719A (en) * | 2012-07-03 | 2012-10-10 | 北京国能子金电气技术有限公司 | Dynamic reactive voltage adjusting device for high voltage line and adjusting method thereof |
-
2012
- 2012-07-03 CN CN2012203183265U patent/CN202696154U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723719A (en) * | 2012-07-03 | 2012-10-10 | 北京国能子金电气技术有限公司 | Dynamic reactive voltage adjusting device for high voltage line and adjusting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HUAAN YUANDA INTELLIGENT ELECTRIC CO., LTD Free format text: FORMER OWNER: BEIJING GUONENG ZIJIN ELECTRIC TECHNOLOGY CO., LTD. Effective date: 20130725 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130725 Address after: 100176 No. 19 Xingye street, Beijing economic and Technological Development Zone, Beijing Patentee after: BEIJING HUAAN YUANDA INTELLIGENT ELECTRICAL CO., LTD. Address before: 100176 No. 19 Xingye street, Beijing economic and Technological Development Zone Patentee before: Beijing Guonengzijin Electrical Technoclogy Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100176 No. 19 Xingye street, Beijing economic and Technological Development Zone, Beijing Patentee after: Beijing Husu Electric Co., Ltd. Address before: 100176 No. 19 Xingye street, Beijing economic and Technological Development Zone, Beijing Patentee before: BEIJING HUAAN YUANDA INTELLIGENT ELECTRICAL CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20190703 |