CN201805232U - Superconductive controllable series capacitance compensator - Google Patents
Superconductive controllable series capacitance compensator Download PDFInfo
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- CN201805232U CN201805232U CN2010202134296U CN201020213429U CN201805232U CN 201805232 U CN201805232 U CN 201805232U CN 2010202134296 U CN2010202134296 U CN 2010202134296U CN 201020213429 U CN201020213429 U CN 201020213429U CN 201805232 U CN201805232 U CN 201805232U
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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
Superconductive controllable series capacitance compensator comprises a capacitor (C), a superconductive controllable reactor (L), a damping circuit (H), an over-voltage protection (MOV) and a circuit breaker (B). The connecting mode is as follows: the capacitor (C), the superconductive controllable reactor (L), the over-voltage protection (MOV) and the circuit breaker (B) are connected in parallel; and the damping circuit is connected with a circuit between the over-voltage protection (MOV) and the circuit breaker (B). The superconductive controllable series capacitance compensator can be used for smoothly adjusting the equivalent capacitance valve in a wide range, integrates the self-detection with the automatic control and has the advantages of high response speed, low loss, small harmonic wave pollution and the like which cannot be achieved by other devices.
Description
Technical field
The utility model relates to superconduction controllable series compensation capacitor, belongs to transmission line dynamic passive compensation technical field.
Background technology
Along with the high speed development of China's electric power system, especially Xi Diandongsong enforcement, the string benefit has quickish development in China 500kV transmission system in recent years.Big line Wei County, room string complement system, positive Huaihe River line three fort string complement systems, Feng Wanshun string complement system and day wide Pingguo string complement system that exchanges all are the concrete application of this technology at China's electrical network.The operation practice of said system shows, the utilization of string complement system to improving stability of power system, enlarges conveying capacity, plays great function.
Traditional controlled series compensation is based on the flexible AC transmission technology, adopts the series compensator of thyristor control.Controlled series compensation can change the reactance that string is mended device within the specific limits neatly, except that the conveying capacity that can increase existing line, also have the voltage-regulation of improvement and reactive balance, improve the transient stability level, reasonable distribution load trend, inhibition system low frequency power oscillation suppresses the subsynchronous resonance effects such as (SSR) of the fired power generating unit of fixed series compensation initiation.Yet, there is following problem based on the controlled series compensation of thyristor:
1, because the needs of thyristor constantly switch, will inject a large amount of harmonic waves to network system, this makes network system need install special filter additional.
2, the pressure drop ratio of thyristor own is bigger, and loss in service is relatively serious.
3, present manufacturing process is relatively more expensive for the high-pressure thyristor cost.
4, the operation of thyristor needs complicated control and protection system.
Summary of the invention
The purpose of this utility model is that the superconductive controllable reactor technology is applied in the series compensation capacitor, can have more excellent performance, has remedied the deficiency of tradition based on the thyristor controlled series compensation again.
The utility model is to address the above problem the solution that is adopted to be: superconducting controllable series capacitance compensator, comprise hardware components and control principle part, hardware components adopts superconductive controllable reactor as the controlled by-pass inductor device of series compensation capacitor, replace the controlled inductance part that contains thyristor in traditional controllable series compensation device, form by capacitor, superconductive controllable reactor, damping circuit, overvoltage protection and circuit breaker; Connected mode is that capacitor, superconductive controllable reactor, overvoltage protection and circuit breaker adopt and be connected in parallel; Damping circuit is connected on the circuit between overvoltage protection and the circuit breaker.
The utility model superconductive controllable reactor can adopt transformer type, also can be versions such as saturable core reactor, magnetic flux lock, three-phase reactor type, mixed type, magnetic screen induction type and bridge circuit type; It is made up of high-temperature superconductor winding, Dewar, AC Windings, iron core, detection winding, and the AC Windings coil is in parallel with the electric capacity of series compensation capacitor.The control principle part by changing the dc bias current size, changes the core sataration degree of depth, thereby realizes the smooth adjustment of AC coil reactance value.
The utility model adopts superconductive controllable reactor as the controlled by-pass inductor device of series compensation capacitor, replaced the controlled inductance part that contains thyristor in traditional controllable series compensation device, the advantage that not only can possess traditional series compensation capacitor, have quicker response, and avoided the deficiency that thyristor brought.Superconduction controllable series compensation capacitor will have very great development prospect and using value.
The utility model control principle part by changing superconduction winding current size, changes the core sataration degree of depth, thereby realizes the smooth adjustment of AC coil reactance value.Superconducting controllable series capacitance compensator can be on a large scale, the smooth adjustment equivalent capacitance value, and union has other device incomparable advantage such as response speed is fast, loss is little, harmonic pollution is little from detecting, being controlled in one automatically.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a transformer type superconducting controllable series capacitance device structural representation.
Embodiment
The utility model comprises hardware components and control principle part, hardware components adopts superconductive controllable reactor as the controlled by-pass inductor device of series compensation capacitor, replace the controlled inductance part that contains thyristor in traditional controllable series compensation device, form by capacitor C, superconductive controllable reactor L, damping circuit H, overvoltage protection MOV and circuit breaker B, connected mode is that capacitor C, superconductive controllable reactor L, overvoltage protection MOV and circuit breaker B adopt and be connected in parallel; Damping circuit H is connected on the circuit between overvoltage protection MOV and the circuit breaker B.
The utility model superconductive controllable reactor adopts transformer type, also can be versions such as saturable core reactor, magnetic flux lock, transformer type, three-phase reactor type, mixed type, magnetic screen induction type and bridge circuit type; It is made up of high-temperature superconductor winding, Dewar, AC Windings, iron core, detection winding etc., and the AC Windings coil is in parallel with the electric capacity of series compensation capacitor; The control principle part by changing the dc bias current size, changes the core sataration degree of depth, thereby realizes the smooth adjustment of AC coil reactance value.
The utility model adopts superconductive controllable reactor as the controlled by-pass inductor device of series compensation capacitor; replace the controlled inductance part that contains thyristor in traditional controllable series compensation device, it contains capacitor, C overvoltage protection MOV, damping circuit H and circuit breaker B as shown in Figure 1.Superconductive controllable reactor can be versions such as saturable core reactor, magnetic flux lock, transformer type, three-phase reactor type, mixed type, magnetic screen induction type and bridge circuit type.
The utility model superconduction reactor adopts transformer type, as shown in Figure 2, it is made up of high-temperature superconductor winding, Dewar, AC Windings, iron core, detection winding etc., AC Windings coil outlet end points 1, the end points 2 that is about to controlled reactor AC Windings end points 1 shown in Figure 2, end points 2 connection in series-parallel access Fig. 1 in parallel with the electric capacity of series compensation capacitor.
The utility model control principle part as shown in Figure 2, by size of current in the superconduction winding, changes the core sataration degree of depth, thereby realizes the smooth adjustment of AC coil reactance value.Superconducting controllable series capacitance compensator can be on a large scale, the smooth adjustment equivalent capacitance value, and realize voltage monitoring by detecting winding.
Claims (3)
1. superconducting controllable series capacitance compensator is characterized in that, is made up of capacitor (C), superconductive controllable reactor (L), damping circuit (H), overvoltage protection (MOV) and circuit breaker (B); Connected mode is that capacitor (C), superconductive controllable reactor (L), overvoltage protection (MOV) and circuit breaker (B) adopt and be connected in parallel; Damping circuit is connected on the circuit between overvoltage protection (MOV) and the circuit breaker (B).
2. according to right 1 described superconducting controllable series capacitance compensator, it is characterized in that: superconductive controllable reactor (L) adopts transformer type, be made up of high-temperature superconductor winding, Dewar, AC Windings, iron core, detection winding, the AC Windings coil is in parallel with the electric capacity of series compensation capacitor.
3. according to right 1 described superconducting controllable series capacitance compensator, it is characterized in that: superconductive controllable reactor (L) adopts saturable core reactor or magnetic flux lock or three-phase reactor type or mixed type or versions such as magnetic screen induction type or bridge circuit type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202134296U CN201805232U (en) | 2010-06-03 | 2010-06-03 | Superconductive controllable series capacitance compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202134296U CN201805232U (en) | 2010-06-03 | 2010-06-03 | Superconductive controllable series capacitance compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201805232U true CN201805232U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202134296U Expired - Lifetime CN201805232U (en) | 2010-06-03 | 2010-06-03 | Superconductive controllable series capacitance compensator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201805232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867193A (en) * | 2010-06-03 | 2010-10-20 | 云南电力试验研究院(集团)有限公司 | Superconducting controllable series capacitance compensator |
-
2010
- 2010-06-03 CN CN2010202134296U patent/CN201805232U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867193A (en) * | 2010-06-03 | 2010-10-20 | 云南电力试验研究院(集团)有限公司 | Superconducting controllable series capacitance compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
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| CX01 | Expiry of patent term |