CN204243693U - A kind of deicing device that do not have a power failure based on phase shifter - Google Patents
A kind of deicing device that do not have a power failure based on phase shifter Download PDFInfo
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- CN204243693U CN204243693U CN201420753910.2U CN201420753910U CN204243693U CN 204243693 U CN204243693 U CN 204243693U CN 201420753910 U CN201420753910 U CN 201420753910U CN 204243693 U CN204243693 U CN 204243693U
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- isolating switch
- phase shifter
- ice
- pst
- power failure
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- 238000002844 melting Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 22
- 230000010363 phase shift Effects 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- WFDDMRRZEHUPCP-UHFFFAOYSA-N Nc1ccc(Sc2ccc(Sc3ccc(N)cc3)s2)cc1 Chemical compound Nc1ccc(Sc2ccc(Sc3ccc(N)cc3)s2)cc1 WFDDMRRZEHUPCP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model provides a kind of deicing device that do not have a power failure based on phase shifter, comprises circuit breaker Q F, phase shifter PST, Capacitor banks C, lightning arrester, the first isolating switch K1, the second isolating switch K2, the 3rd isolating switch K3 and the 4th isolating switch K4; First isolating switch K1, phase shifter PST and the second isolating switch K2 connect successively, composition K1-PST-K2 branch road, 3rd isolating switch K3, Capacitor banks C and the 4th isolating switch K4 connect successively, composition K3-C-K4 branch road, K1-PST-K2 branch road, K3-C-K4 branch road and lightning arrester are all in parallel with circuit breaker Q F.The utility model in conjunction with the auxiliary equipment such as inductance, electric capacity, is treating that DC ice-melting two ends provide phase angle difference by phase shifter or phase shifter, increases or reduce the trend of institute's line attachment flexibly, realizes the alternating current heating ice-melt of institute's line attachment or its parallel line.The utility model ice-melt principle is simple, and deicing processes, without the need to having a power failure, contributes to improving grid stability and reliability in deicing processes, improves the ability that electrical network resists ice disaster.
Description
Technical field
The utility model belongs to electric and electronic technical field, is specifically related to a kind of deicing device that do not have a power failure based on phase shifter.
Background technology
The all provinces of south China annual electrical network icing situation is serious, except giving wire, steel tower and gold utensil and all bringing certain mechanical failure, also can break when icing is serious, fall shaft tower, cause large area blackout.The method that current electrical network is relatively commonly used is electric power ice-melt, and comprise portable ice-melting vehicle, interchange ice-melt point, artificial deicing, fixing DC ice melting hold concurrently SVC device etc., various method respectively has feature.Electric power ice-melt needs larger current, substantially can be divided into and exchange ice-melt and DC ice melting two type.Exchange ice-melt principle simple, but power supply capacity is usually large than DC ice melting power supply capacity demand.DC ice melting injects variable DC voltage by converter to circuit, and the feature utilizing transmission line resistance less obtains larger direct current, line current is increased to realize ice-melt, but DC component causes adverse effect to the equipment such as transformer, switch.Existing de-icing method must carry out under power down mode.Because icing season is peak of power consumption in winter, line outage ice-melt causes shortage of electric power, system cloud gray model nervous, ice-melt not in time and large area icing also can cause the broken string of falling tower, power grid accident is expanded further, and therefore electrical network is urgent to the de-icing technology demand that do not have a power failure.
Do not have a power failure in deicing processes and need to maintain normal power supply, must take measures to avoid ice-melt to produce excessive impact to system capital equipment.Meanwhile, different substation connection type is different, and transmission line Distance geometry model is varied, therefore requires that deicing device possesses certain versatility.In the order of severity of line ice coating, deicing processes, the control & protection strategy of factor to deicing device such as system incipient fault possibility proposes requirements at the higher level.About the implementation of the ice-melt that do not have a power failure, domestic and international study to propose to comprise adopt power flow regulating device, as THE UPFC increases the ice-melt of line load electric current, adopt power transformer the ice-melt of supplementary insulation heating wires, and add high-frequency and high-voltage driving source and microwave trap and realize the different resolving ideas such as high-frequency current ice-melt.But said method or need extra increase equipment and circuit, or too high to the capacity requirement of voltage source converter, and there is larger difficulty in real world applications.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of deicing device that do not have a power failure based on phase shifter, by phase shifter or phase shifter in conjunction with the auxiliary equipment such as inductance, electric capacity, treating that DC ice-melting two ends provide phase angle difference, the trend of flexible increase or reduction institute line attachment, realizes the alternating current heating ice-melt of institute's line attachment or its parallel line.Ice-melt principle of the present invention is simple, and deicing processes, without the need to having a power failure, contributes to improving grid stability and reliability in deicing processes, improves the ability that electrical network resists ice disaster.
To achieve these goals, the utility model takes following scheme:
The utility model provides a kind of deicing device that do not have a power failure based on phase shifter, and described device comprises circuit breaker Q F, phase shifter PST, Capacitor banks C, lightning arrester, the first isolating switch K1, the second isolating switch K2, the 3rd isolating switch K3 and the 4th isolating switch K4; Described first isolating switch K1, phase shifter PST and the second isolating switch K2 connect successively, composition K1-PST-K2 branch road, described 3rd isolating switch K3, Capacitor banks C and the 4th isolating switch K4 connect successively, composition K3-C-K4 branch road, described K1-PST-K2 branch road, K3-C-K4 branch road and lightning arrester are all in parallel with circuit breaker Q F.
Described phase shifter comprises series transformer and shunt transformer; A winding of described shunt transformer is drawn from the neutral point of series transformer, its secondary winding by Phase shift winding and tap-changing windings in series.
Described lightning arrester is zinc oxide arrester.
Described circuit breaker Q F is oil-immersed breaker.
Described device by the first terminal and the second terminal with treat that DC ice-melting is connected.
Compared with prior art, the beneficial effects of the utility model are:
The utility model in conjunction with the auxiliary equipment such as inductance, electric capacity, is treating that DC ice-melting two ends provide phase angle difference by phase shifter or phase shifter, increases or reduce the trend of institute's line attachment flexibly, realizes the alternating current heating ice-melt of institute's line attachment or its parallel line.Ice-melt principle is simple, and deicing processes, without the need to having a power failure, contributes to improving grid stability and reliability in deicing processes, improves the ability that electrical network resists ice disaster.
Accompanying drawing explanation
Fig. 1 is the deicing device structure chart that do not have a power failure based on phase shifter in the utility model embodiment 1;
Fig. 2 is the deicing device structure chart that do not have a power failure based on phase shifter in the utility model embodiment 2.
Fig. 3 is phase shifter structure figure in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
As Fig. 1, based on phase shifter do not have a power failure deicing device by the first terminal and the second terminal with treat that DC ice-melting is connected; It comprises circuit breaker Q F, phase shifter PST, Capacitor banks C, lightning arrester, the first isolating switch K1, the second isolating switch K2, the 3rd isolating switch K3 and the 4th isolating switch K4; Described first isolating switch K1, phase shifter PST and the second isolating switch K2 connect successively, composition K1-PST-K2 branch road, described 3rd isolating switch K3, Capacitor banks C and the 4th isolating switch K4 connect successively, composition K3-C-K4 branch road, described K1-PST-K2 branch road, K3-C-K4 and lightning arrester are all in parallel with circuit breaker Q F.
As Fig. 3, described phase shifter comprises series transformer and shunt transformer; A winding of described shunt transformer is drawn from the neutral point of series transformer, its secondary winding by Phase shift winding and tap-changing windings in series.Tap-changing windings can adopt mechanical type pressure regulation, or thyristor voltage regulation.Phase shift winding can provide a fixing angular deflection, can the adjustable range of single-phase increase deicing device, if system does not have demand, by-pass switch can be adopted Phase shift winding bypass.Phase shifter PST has increase Line Flow and reduces Line Flow two kinds of working methods, namely by providing advanced or delayed phase shifting angle to realize.Phase shifter PST and capacitor, reactor parallel connection use and form auxiliary type phase shifter, i.e. APST, can increase the excursion of Line Flow.Shunt capacitance can increase trend further, and shunt inductance can reduce trend further.
Described lightning arrester is zinc oxide arrester.
Described circuit breaker Q F is oil-immersed breaker.
Based on the deicing device that do not have a power failure of phase shifter by imposing suitable transformation and control to mechanical type phase shifter or controllable phase shifter, it is made to possess the function of ice-melt.
When electrical network normally runs, by circuit breaker Q F by the deicing device bypass that do not have a power failure based on phase shifter, this timer does not play any systemic-function.If desired, by closed first isolating switch K1 and the second isolating switch K2, only phase shift PST device can be dropped into, the effect of balanced trend can be played.When needs ice-melt, can pass through to change control command and increase place Line Flow ice-melt, also can, by reducing institute's line attachment trend, parallel line trend be increased, electric current increase realizes ice-melt.If desired, if ice melting current exceedes the operating current of phase shifter, by closed 3rd isolating switch K3 and the 4th isolating switch K4, Capacitor banks C is dropped into, for phase shifter PST shunts, thus make the ice melting current of circuit exceed phase shifter rated current, realize thermal ice-melting.
Embodiment 2
As Fig. 2, based on phase shifter do not have a power failure deicing device by the first terminal and the second terminal with treat that DC ice-melting is connected; It comprises circuit breaker Q F, phase shifter PST, inductance L, lightning arrester, the first isolating switch K1, the second isolating switch K2, the 3rd isolating switch K3 and the 4th isolating switch K4; Described first isolating switch K1, phase shifter PST and the second isolating switch K2 connect successively, composition K1-PST-K2 branch road, described 3rd isolating switch K3, inductance L and the 4th isolating switch K4 connect successively, composition K3-L-K4 branch road, described K1-PST-K2 branch road, K3-L-K4 branch road and lightning arrester are all in parallel with circuit breaker Q F.
As Fig. 3, described phase shifter comprises series transformer and shunt transformer; A winding of described shunt transformer is drawn from the neutral point of series transformer, its secondary winding by Phase shift winding and tap-changing windings in series.Tap-changing windings can adopt mechanical type pressure regulation, or thyristor voltage regulation.Phase shift winding can provide a fixing angular deflection, can the adjustable range of single-phase increase deicing device, if system does not have demand, by-pass switch can be adopted Phase shift winding bypass.Phase shifter PST has increase Line Flow and reduces Line Flow two kinds of working methods, namely by providing advanced or delayed phase shifting angle to realize.Phase shifter PST and capacitor, reactor parallel connection use and form auxiliary type phase shifter, i.e. APST, can increase the excursion of Line Flow.Shunt capacitance can increase trend further, and shunt inductance can reduce trend further.
Described lightning arrester is zinc oxide arrester.
Described circuit breaker Q F is oil-immersed breaker.
Based on the deicing device that do not have a power failure of phase shifter by imposing suitable transformation and control to mechanical type phase shifter or controllable phase shifter, it is made to possess the function of ice-melt.
When electrical network normally runs, by circuit breaker Q F by the deicing device bypass that do not have a power failure based on phase shifter, this timer does not play any systemic-function.If desired, by closed first isolating switch K1 and the second isolating switch K2, only phase shift PST device can be dropped into, the effect of balanced trend can be played.When needs ice-melt, can pass through to change control command and increase place Line Flow ice-melt, also can, by reducing institute's line attachment trend, parallel line trend be increased, electric current increase realizes ice-melt.If desired, if ice melting current exceedes the operating current of phase shifter, by closed 3rd isolating switch K3 and the 4th isolating switch K4, inductance L is dropped into, for phase shifter PST shunts, thus make the ice melting current of circuit exceed phase shifter rated current, realize thermal ice-melting.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field still can modify to embodiment of the present utility model with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of the utility model spirit and scope or equivalent replacement, are all applying within the claims of the present utility model awaited the reply.
Claims (5)
1. based on the deicing device that do not have a power failure of phase shifter, it is characterized in that: described device comprises circuit breaker Q F, phase shifter PST, Capacitor banks C, lightning arrester, the first isolating switch K1, the second isolating switch K2, the 3rd isolating switch K3 and the 4th isolating switch K4; Described first isolating switch K1, phase shifter PST and the second isolating switch K2 connect successively, composition K1-PST-K2 branch road, described 3rd isolating switch K3, Capacitor banks C and the 4th isolating switch K4 connect successively, composition K3-C-K4 branch road, described K1-PST-K2 branch road, K3-C-K4 branch road and lightning arrester are all in parallel with circuit breaker Q F.
2. the deicing device that do not have a power failure based on phase shifter according to claim 1, is characterized in that: described phase shifter comprises series transformer and shunt transformer; A winding of described shunt transformer is drawn from the neutral point of series transformer, its secondary winding by Phase shift winding and tap-changing windings in series.
3. the deicing device that do not have a power failure based on phase shifter according to claim 1, is characterized in that: described lightning arrester is zinc oxide arrester.
4. the deicing device that do not have a power failure based on phase shifter according to claim 1, is characterized in that: described circuit breaker Q F is oil-immersed breaker.
5. the deicing device that do not have a power failure based on phase shifter according to claim 1, is characterized in that: described device by the first terminal and the second terminal with treat that DC ice-melting is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753910.2U CN204243693U (en) | 2014-12-03 | 2014-12-03 | A kind of deicing device that do not have a power failure based on phase shifter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753910.2U CN204243693U (en) | 2014-12-03 | 2014-12-03 | A kind of deicing device that do not have a power failure based on phase shifter |
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| CN204243693U true CN204243693U (en) | 2015-04-01 |
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| CN201420753910.2U Active CN204243693U (en) | 2014-12-03 | 2014-12-03 | A kind of deicing device that do not have a power failure based on phase shifter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494615A (en) * | 2018-12-10 | 2019-03-19 | 贵州电网有限责任公司 | Active circulation, which is manufactured, using flexible multimode switch realizes power distribution network de-icing method |
| CN109742709A (en) * | 2018-12-18 | 2019-05-10 | 湖南省湘电试研技术有限公司 | A kind of electrification ice melting system and its de-icing method |
| CN110350441A (en) * | 2019-07-15 | 2019-10-18 | 贵州电网有限责任公司 | A kind of online de-icing method of transmission line of electricity based on phase-shifting transformer |
| CN110535061A (en) * | 2019-07-15 | 2019-12-03 | 贵州电网有限责任公司 | One kind being used for the online ice-melt substation back brake method of electric line |
| CN110768269A (en) * | 2019-12-03 | 2020-02-07 | 西安西电电力系统有限公司 | Static synchronous compensation device and control method thereof |
-
2014
- 2014-12-03 CN CN201420753910.2U patent/CN204243693U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494615A (en) * | 2018-12-10 | 2019-03-19 | 贵州电网有限责任公司 | Active circulation, which is manufactured, using flexible multimode switch realizes power distribution network de-icing method |
| CN109494615B (en) * | 2018-12-10 | 2020-07-28 | 贵州电网有限责任公司 | Method for realizing ice melting of power distribution network by manufacturing active circulation current through flexible multi-state switch |
| CN109742709A (en) * | 2018-12-18 | 2019-05-10 | 湖南省湘电试研技术有限公司 | A kind of electrification ice melting system and its de-icing method |
| CN110350441A (en) * | 2019-07-15 | 2019-10-18 | 贵州电网有限责任公司 | A kind of online de-icing method of transmission line of electricity based on phase-shifting transformer |
| CN110535061A (en) * | 2019-07-15 | 2019-12-03 | 贵州电网有限责任公司 | One kind being used for the online ice-melt substation back brake method of electric line |
| CN110768269A (en) * | 2019-12-03 | 2020-02-07 | 西安西电电力系统有限公司 | Static synchronous compensation device and control method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |