CN106159862A - A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently - Google Patents
A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently Download PDFInfo
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- CN106159862A CN106159862A CN201610589639.7A CN201610589639A CN106159862A CN 106159862 A CN106159862 A CN 106159862A CN 201610589639 A CN201610589639 A CN 201610589639A CN 106159862 A CN106159862 A CN 106159862A
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- transformer station
- svg
- ice melting
- direct current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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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
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently; including electric energy measurement metering and protection device, transformator, operational mode switch, DC ice melting unit and dynamic passive compensation unit; the former limit of described transformator is measured by electric energy measurement and protection device is connected with the ac bus of transformer station, and the secondary of described transformator is connected with DC ice melting unit, dynamic passive compensation unit respectively by operational mode switch.The present invention is capable of device self thermal losses and recycles, and can dispatch AVC system compatible with transformer station, provides effective for the multi-functional Study on topology of deicing device and device development and instructs, is widely portable to 500kV transformer station.
Description
Technical field
The present invention relates to the deicing device of electrical engineering, be specifically related to a kind of 500kV transformer station having SVG function concurrently intensive
Type direct current ice melting system.
Background technology
The southern area ice disaster such as the Guizhou of China, Hunan, Hubei take place frequently, due to Climate Anomalies or even north in recent years
The northern area such as capital, Liaoning also time have ice disaster to occur, easily cause the broken string of falling tower after powerline ice-covering, serious threat to electricity
Net safe and stable operation and power supply reliability.In order to improve the ability of transmission line of electricity opposing ice damage, domestic many units have developed
The DC de-icing device of Multiple Type, provides solid technical guarantee for electrical network Winter safety stable operation, but deicing device
The line ice coating phase uses the most in the winter time, and utilization rate is relatively low, and the deicing device investment of 500kV transformer station is big, the idle resistance of overequipment
The popularization and application of deicing device are hindered, to this end, home and abroad minority colleges and universities and R&D institution develop and be applicable to 500kV transformer station
The DC de-icing device having SVG no-power compensation function concurrently, not only can to icing circuit implement DC ice melting, also by change
Device internal structure realizes dynamic passive compensation.But, there is techniques below problem in such device: problem 1, harmonic wave is big, takes up an area
Area is big: can produce a large amount of 5 times, 7 inferior harmonic currents, device self and filtering during plant running needs configuration to organize Large Copacity more
Capacitor, reactor, cause that plant area area is big, construction cost is high；Problem 2, ice-melt and the reactive-load compensation same capacity configuration of palpus:
Whole volume SVG to be taken into account and deicing device, voltage takes the high voltage of SVG, and electric current takes the big electric current of deicing device, causes entirety
Capacity is very big, and cost is high；Problem 3, caloric value is big, must use water-cooled: which loss is big, and operating cost is high, it is necessary to use
Water-cooling pattern, increases water-cooling system, and water quality requirement is high, need to carry out deionization process, to prevent from leaking simultaneously, need again winter to carry out
Antifreeze process, maintenance workload is big, affects device reliability.Therefore, SVG no-power compensation function is had concurrently for 500kV transformer station
The feature of DC de-icing device, grind in the urgent need to carrying out the novel intensive DC de-icing device topological structure of 500kV transformer station
Studying carefully, in order to solve the problem that existing deicing device exists, the structure for device designs and final development provides and instructs.
Summary of the invention
The technical problem to be solved in the present invention: for the problems referred to above of prior art, it is provided that one is capable of device certainly
Fever of the body loss recycles, and can dispatch AVC system compatible with transformer station, for the multi-functional Study on topology of deicing device and dress
Putting development and provide effective guidance, the 500kV transformer station having SVG function concurrently being widely portable to 500kV transformer station is intensive
Direct current ice melting system.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently, including electric energy measurement metering and protection
Device, transformator, operational mode switch, DC ice melting unit and dynamic passive compensation unit, the former limit of described transformator leads to
Crossing electric energy measurement metering and protection device to be connected with the ac bus of transformer station, the secondary of described transformator is cut by operational mode
Parallel operation is connected with DC ice melting unit, dynamic passive compensation unit respectively.
Preferably, described DC ice melting unit includes rectification part, induced voltage suppressor and the switching of three-phase DC ice-melting
One input of device, the AC of described rectification part and operational mode switch is connected, the DC side of described rectification part
Pass sequentially through induced voltage suppressor to be connected with three-phase DC ice-melting switch, and by the output of three-phase DC ice-melting switch
End provides ice-melt output voltage.
Preferably, described dynamic passive compensation unit includes SVG type dynamic reactive compensator and Capacitor banks and reactor
Group, described SVG type dynamic reactive compensator is connected with another input of operational mode switch, and described SVG type is dynamic
Two secondary input ends of reactive-load compensator respectively with the secondary outfan of Capacitor banks and Reactor banks, the TT&C system of transformer station with
And the scheduling AVC system of transformer station is connected, a secondary input end of described Capacitor banks and Reactor banks exchanges mother with transformer station
Line is connected.
Preferably, described SVG type dynamic reactive compensator is also associated with thermal losses UTILIZATION OF VESIDUAL HEAT IN unit.
Preferably, described SVG type dynamic reactive compensator is installed in the power cabinet closing space, the top of described power cabinet
Portion is provided with interconnective blower fan and ducting outlet.
Preferably, described thermal losses UTILIZATION OF VESIDUAL HEAT IN unit includes that radiator and source pump, described source pump include steaming
Sending out device, condenser and compressor pump, described radiator includes separate wind passage and the first aquaporin, and described vaporizer includes
The second separate aquaporin and first medium passage, described condenser includes separate second medium passage and waste heat
Utilizing passage, the first aquaporin arrival end of described radiator connects with ducting outlet, the port of export connects with closing space, described
By circulating pump circulation between first aquaporin, the second aquaporin, between described first medium passage, second medium passage
By compressor pump circulation, described UTILIZATION OF VESIDUAL HEAT IN passage includes that hot water heats passage, and described hot water heats passage end and is provided with
Cold water inlet, the other end are provided with hot water outlet pipe.
Preferably, described UTILIZATION OF VESIDUAL HEAT IN passage also includes air heat dissipation channel.
Preferably, the connection group of described transformator is Y/y0d11, and described transformator is that upper and lower winding concentricity is complete
Consistent axial direction double bundle structure transformer, two windings of the secondary of described axial direction double bundle structure transformer share an iron core
Magnetic circuit is that axial split is arranged.
The present invention has the 500kV transformer station intensive style direct current ice melting system of SVG function concurrently and has an advantage that
1, the present invention includes electric energy measurement metering and protection device, transformator, operational mode switch, DC ice melting unit
With dynamic passive compensation unit, the former limit of described transformator measured by electric energy measurement and protection device and transformer station exchange mother
Line be connected, the secondary of described transformator by operational mode switch respectively with DC ice melting unit, dynamic passive compensation unit
It is connected, it is possible to realize ice-melt capacity with SVG capacity because configuration need to be separately optimized, reduce device volume and cost, meet ice-melt high
Reliability and dynamic passive compensation requirement, and there is harmonic wave control function, optimize transformer station's dynamic reactive and coordinate with static reactive.
2, the present invention can collect every line voltage distribution, electric current, meritorious and idle etc. with Measurement-control System of Transformer Substation information exchange
Information, it is achieved neighboring station voltage is estimated, dispatches AVC system compatible with transformer station, it is achieved our station dynamic electric voltage, steady state voltage and neighboring station
Voltage Multiple Optimization is coordinated to control.
3, cooling system of the present invention uses closed cycle air-cooled, and operation maintenance is simple, and without the risk of infiltration, and it is prone to real
The recycling of existing device self thermal losses.
4, the present invention can carry out the recovery of device self thermal losses, after the heat recovery that plant running thermal losses is produced,
Heating cold water, is converted into the domestic hot-water of about 55 DEG C, it is achieved the recycling of energy by cold water, reduces plant running cost,
Solve existing dynamic reactive compensation device and mended the idle difficult problem damaged and gained merit, it is achieved large power power electronic appliance real meaning
Energy-conserving and environment-protective run.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the embodiment of the present invention.
Fig. 2 is the winding block diagram of the transformator of the embodiment of the present invention.
Fig. 3 be the transformator of the embodiment of the present invention two windings of secondary in flux distribution.
Fig. 4 is the thermal losses UTILIZATION OF VESIDUAL HEAT IN cellular construction schematic diagram of the embodiment of the present invention.
Fig. 5 is the principle schematic that the application embodiment of the present invention carries out reactive requirement and allocation strategy.
Marginal data: 1, electric energy measurement metering and protection device；2, transformator；3, operational mode switch；4, direct current melts
Ice unit；41, rectification part；42, induced voltage suppressor；43, three-phase DC ice-melting switch；5, dynamic passive compensation list
Unit；51, SVG type dynamic reactive compensator；510, space is closed；511, power cabinet；512, blower fan；513 and ducting outlet；52、
Capacitor banks and Reactor banks；6, thermal losses UTILIZATION OF VESIDUAL HEAT IN unit；61, radiator；62, source pump；621, vaporizer；622、
Condenser；623, compressor pump；624, cold water inlet；625, hot water outlet pipe.
Detailed description of the invention
As it is shown in figure 1, the 500kV transformer station intensive style direct current ice melting system that the present embodiment has SVG function concurrently includes electric energy
Measuring and protection device 1, transformator 2, operational mode switch 3, DC ice melting unit 4 and dynamic passive compensation unit 5,
The former limit of transformator 2 is measured by electric energy measurement and protection device 1 is connected with the 35kV ac bus of transformer station, transformator 2
Secondary is connected with DC ice melting unit 4, dynamic passive compensation unit 5 respectively by operational mode switch 3.In the present embodiment,
Transformator 2 is by the input of output termination operational mode switch 3, the output of operational mode switch 3 after 35kV high pressure blood pressure lowering
End input with DC ice melting unit 4 and dynamic passive compensation unit 5 respectively is connected, and operational mode switch 3 exports specified
Voltage is 22.5kV, and rated capacity is that the DC voltage of 120MW treats each other DC ice-melting to three；Dynamic passive compensation unit 5 exports
Rated voltage 20kV, rated capacity is ± perception of 100Mvar or capacitive reactive power.
In the present embodiment, electric energy measurement metering and protection device 1 use commercially available DNCLBH-35kV type electric energy measurement, metering
With protection device.
In the present embodiment, transformator 2 uses from BYQ-350kV-20kV type 12 pulse wave transformer ground, this 12 pulse wave transformation
The connection group of device is Y/y0d11, and transformator 2 is upper and lower winding concentricity on all four axial direction double bundle structure transformer,
It is that axial split is arranged that two windings of the secondary of axial direction double bundle structure transformer share an iron circuit, passes through said structure
Be capable of ice-melt rectification 5 times, 7 subharmonic automotive resistances, it is ensured that SVG harmonic compensation enters electrical network and compensation by transformator
Rapidity.In the present embodiment, transformator 2 is the unsaturation three-winding transformer of Low ESR, wide-voltage-regulation rectification, it is possible to achieve many
Gear voltage exports, and transformator 2 uses Low ESR, wide-voltage-regulation method for designing simultaneously, by the preferred arrangement of aforementioned winding and electricity
Field calculates, and makes transformer regulating wide ranges reach 80% (20%～100%), and the short-circuit impedance difference of each gear is less, available
Diode rectification ice-melt, meets ice-melt high reliability request.
As in figure 2 it is shown, transformator 2 be upper and lower winding concentricity on all four axial direction double bundle structure transformer i.e.: former
Each phase of limit D winding, each phase of secondary y11 winding, each phase one_to_one corresponding of secondary d0 winding and concentricity complete
Cause in axial direction double bundle structure；As it is shown on figure 3, Φ1、Φ2It is respectively the magnetic flux by two winding A phases of secondary, Φ1-Φ2For
Magnetic flux by two winding B phases of secondary.Due to each phase of former limit D winding, each phase of secondary y11 winding, secondary d0 around
Each phase one_to_one corresponding and the concentricity of group are completely the same in axial direction double bundle structure, therefore can meet formula:
FA (5,7 times)=FAy (5,7 times)+FAd (5,7 times)=0
FB (5,7 times)=FBy (5,7 times)+FBd (5,7 times)=0
FC (5,7 times)=FCy (5,7 times)+FCd (5,7 times)=0
Wherein, FA (5,7 times)Represent the harmonic wave of former limit A phase, FAy (5,7 times)Represent the harmonic wave of secondary y11 winding A phase, FAd (5,7 times)Table
Show the harmonic wave of secondary d0 winding A phase, FB (5,7 times)Represent the harmonic wave of former limit B phase, FBy (5,7 times)Represent the humorous of secondary y11 winding B phase
Ripple, FBd (5,7 times)Represent the harmonic wave of secondary d0 winding B phase, FC (5,7 times)Represent the harmonic wave of former limit C phase, FCy (5,7 times)Represent secondary y11 around
The harmonic wave of group C phase, FCd (5,7 times)Represent the harmonic wave of secondary d0 winding C phase.Therefore, it is possible to realize ice-melt rectification 5 times, 7 subharmonic from
Dynamic counteracting, it is ensured that SVG harmonic compensation enters electrical network and the rapidity of compensation by transformator.
In the present embodiment, operational mode switch 3 uses commercially available YXMS-20kV type operational mode switch.
As it is shown in figure 1, DC ice melting unit 4 includes rectification part 41, induced voltage suppressor 42 and three-phase DC ice-melting
One input of switch 43, the AC of rectification part 41 and operational mode switch 3 is connected, the direct current of rectification part 41
Side passes sequentially through induced voltage suppressor 42 and is connected with three-phase DC ice-melting switch 43, and by three-phase DC ice-melting switch
The outfan of 43 provides ice-melt output voltage.In the present embodiment, rectification part 41 uses the ZLQ-20kV of diode uncontrollable rectifier
Type 12 pulse wave diode rectifier, is made up of two three phase rectifier full-bridges, can realize 12 pulse wave direct voltage outputs；Induced voltage
Suppressor 42 uses the DYYZ-20kV type induced voltage suppressor of independent development；Three-phase DC ice-melting switch 43 uses commercially available
RBQH-20kV type DC ice-melting switch.
As it is shown in figure 1, dynamic passive compensation unit 5 includes SVG type dynamic reactive compensator 51 and Capacitor banks and reactance
Device group 52, SVG type dynamic reactive compensator 51 is connected with another input of operational mode switch 3, and the dynamic nothing of SVG type
Two secondary input ends of merit compensator 51 respectively with secondary outfan, the TT&C system of transformer station of Capacitor banks and Reactor banks 52
(in the present embodiment, being specially transformer station's existing CKXT-12 type measure and control device) and scheduling AVC system (this enforcement of transformer station
Example is specially transformer station's existing AVC-8 type system) it is connected, Capacitor banks and a secondary input end of Reactor banks 52 and power transformation
The ac bus stood is connected.In the present embodiment, SVG type dynamic reactive compensator 51 uses DTWGBC-20kV type dynamic reactive to mend
Repaying device, Capacitor banks and Reactor banks 52 is the existing capacitor of transformer station and Reactor banks.
As it is shown in figure 1, SVG type dynamic reactive compensator 51 is also associated with thermal losses UTILIZATION OF VESIDUAL HEAT IN unit 6, thermal losses waste heat
Range site 6 can effectively solve that SVG type dynamic reactive compensator 51 caloric value is big, self thermal losses big, must use water-cooled, runs
High in cost of production problem, it is achieved super-current power unit high efficiency and heat radiation, realizes self thermal losses simultaneously and recycles.
As shown in Figure 4, SVG type dynamic reactive compensator 51 is installed in the power cabinet 511 closing space 510, power cabinet
The top of 511 is provided with interconnective blower fan 512 and ducting outlet 513, uses the room air closing space 510 to close and follows
Ring, then avoid dust entrance indoor with the sealed type air cooling way of outdoor heat exchange, it is ensured that SVG type dynamic reactive compensator
Stablizing and reliable of 51 working environments.
As shown in Figure 4, thermal losses UTILIZATION OF VESIDUAL HEAT IN unit 6 includes radiator 61 and source pump 62, and source pump 62 includes
Vaporizer 621, condenser 622 and compressor pump 623, radiator 61 includes separate wind passage and the first aquaporin, evaporation
Device 621 includes the second separate aquaporin and first medium passage, and condenser 622 includes that separate second medium leads to
Road and UTILIZATION OF VESIDUAL HEAT IN passage, the first aquaporin arrival end of radiator 61 connects with ducting outlet 513, the port of export and closing space
510 connections, by circulating pump circulation between the first aquaporin, the second aquaporin, first medium passage, second medium passage
Between by compressor pump 623 circulation, UTILIZATION OF VESIDUAL HEAT IN passage includes that hot water heats passage, and hot water heats passage end and is provided with cold
Water water inlet pipe 624 (connecing tap water), the other end are provided with hot water outlet pipe 625, the hot water of exportable about 55 DEG C.By above-mentioned knot
Structure, it is possible to realize the air-cooled cooling to SVG type dynamic reactive compensator 51, and by SVG type dynamic reactive compensator 51 Interior Space
Converting heat in gas becomes utilizable about 55 DEG C hot water output, it is achieved self heat waste of SVG type dynamic reactive compensator 51
The energy-conserving and environment-protective of consumption are reclaimed and utilize, and utilize source pump to make indoor cold wind temperature can be far below ambient temperature, thus
Ensure that cooling system remains to reliability service under summer high temperature weather.In the present embodiment, radiator 61 uses RBLQ-60 type to dispel the heat
Device, power device high efficiency and heat radiation technology based on complex superconducting flat-plate heat pipe, reduces power model heat generation density, simultaneously to wind
Road is optimized design etc., thus improves the heat exchanger effectiveness of thermal losses UTILIZATION OF VESIDUAL HEAT IN unit 6.Source pump 62 uses commercially available
RLJH-22 type condenser 62.The present embodiment uses power device high efficiency and heat radiation technology based on complex superconducting flat-plate heat pipe, drops
Low power module heat generation density, is optimized design etc. simultaneously, thus improves the heat friendship of thermal losses UTILIZATION OF VESIDUAL HEAT IN unit 6 air channel
Change efficiency.
In the present embodiment, UTILIZATION OF VESIDUAL HEAT IN passage also includes air heat dissipation channel, when hot water is dissolved nowhere when, it is possible to straight
Connect and utilize air that medium is cooled down, thus improve the availability of source pump 62.
Due to the present embodiment SVG type dynamic reactive compensator 51 two secondary input ends respectively with Capacitor banks and Reactor banks
The secondary outfan of 52, the TT&C system of transformer station (are specially transformer station's existing CKXT-12 type observing and controlling dress in the present embodiment
Put) and the scheduling AVC system (in the present embodiment be specially transformer station's existing AVC-8 type system) of transformer station be connected, therefore
Can coordinate to control in conjunction with the TT&C system of existing transformer station and scheduling AVC system feasible region voltage.In the present embodiment comprehensively
Consider electrical network demand, propose different to Target Assignment such as our station dynamic electric voltage, steady state voltage, neighboring station voltage and reactive-load compensations
Regulation and control priority, takes into account the control target that priority is relatively low while meeting high priority target as far as possible, thus realizes many mesh
Mark is coordinated to control, as shown in table 1.
Table 1: control target and priority list.
The TT&C system of transformer station can to SVG type dynamic reactive compensator 51 provide every, transformer station line voltage distribution, electric current,
The information such as meritorious and idle, it is achieved neighboring station voltage prediction, according to the computational methods such as formula (1) of node voltage and power；
In formula (1), UsFor neighboring station voltage to be predicted, U0For our station voltage, take the meansigma methods of three-phase, R and X be our station with
Impedance on this station interconnection, P and Q is our station and gaining merit and idle on this station interconnection, and P, with inflow our station for just, flows out
Our station is negative, Q with flow into our station perception for just, the perception leaving our station is negative.The trend utilizing transmission line of electricity is joined with impedance
Number, the busbar voltage of real-time estimation adjacent substations；Export idle when neighboring station voltage out-of-limit by control device, thus maintain
Voltage stabilization in certain area.
As it is shown in figure 5, include in the step carrying out reactive requirement and distribution: 1, according to each phase in formula (1) estimation area
The neighboring station voltage of adjacent transformer station；2, carry out reactive requirement analysis, first determine whether that our station transient voltage is the most stable, the most gradually increase
Add output perception or capacitive reactive power Q* until our station Transient Voltage Stability；Judge that our station voltage is the most out-of-limit again, the most gradually increase
Add and export perception or capacitive reactive power Q* until our station steady state voltage is stable, the most gradually realize neighboring station voltage and coordinate control, impact
Property load dynamic compensation and dynamic reactive capacity Initiative Inventory Management；3, carry out without the distribution of work, when perception or capacitive reactive power Q* output,
First realize the reactive-load compensation of certain capacity with self capacity of SVG type dynamic reactive compensator 51, at SVG type dynamic reactive compensator
When 51 capacity can not meet actual reactive requirement, utilize SVG type dynamic reactive compensator 51 control transformer station's inner capacitor group and
Capacitor or reactor in Reactor banks 52 realize reactive-load compensation, until meeting our station and neighboring station Reactive-power control demand.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (8)
1. the 500kV transformer station intensive style direct current ice melting system having SVG function concurrently, it is characterised in that: include electric energy measurement
Metering and protection device (1), transformator (2), operational mode switch (3), DC ice melting unit (4) and dynamic passive compensation list
Unit (5), the former limit of described transformator (2) is measured by electric energy measurement and protection device (1) is connected with the ac bus of transformer station,
The secondary of described transformator (2) by operational mode switch (3) respectively with DC ice melting unit (4), dynamic passive compensation list
Unit (5) is connected.
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 1, its feature exists
In: described DC ice melting unit (4) includes rectification part (41), induced voltage suppressor (42) and three-phase DC ice-melting switch
(43), the AC of described rectification part (41) is connected with an input of operational mode switch (3), described rectification part
(41) DC side passes sequentially through induced voltage suppressor (42) and is connected with three-phase DC ice-melting switch (43), and passes through three-phase
The outfan of DC ice-melting switch (43) provides ice-melt output voltage.
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 1, its feature exists
In: described dynamic passive compensation unit (5) includes SVG type dynamic reactive compensator (51) and Capacitor banks and Reactor banks
(52), described SVG type dynamic reactive compensator (51) is connected with another input of operational mode switch (3), and described
Two secondary input ends of SVG type dynamic reactive compensator (51) respectively with Capacitor banks and the secondary outfan of Reactor banks (52),
The TT&C system of transformer station and the scheduling AVC system of transformer station are connected, and described Capacitor banks and Reactor banks (52) are once
Input is connected with the ac bus of transformer station.
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 3, its feature exists
In: described SVG type dynamic reactive compensator (51) is also associated with thermal losses UTILIZATION OF VESIDUAL HEAT IN unit (6).
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 4, its feature exists
In: described SVG type dynamic reactive compensator (51) is installed in the power cabinet (511) closing space (510), described power cabinet
(511) top is provided with interconnective blower fan (512) and ducting outlet (513).
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 5, its feature exists
In: described thermal losses UTILIZATION OF VESIDUAL HEAT IN unit (6) includes radiator (61) and source pump (62), and described source pump (62) includes
Vaporizer (621), condenser (622) and compressor pump (623), described radiator (61) includes separate wind passage and first
Aquaporin, described vaporizer (621) includes the second separate aquaporin and first medium passage, described condenser (622)
Including separate second medium passage and UTILIZATION OF VESIDUAL HEAT IN passage, the first aquaporin arrival end and wind of described radiator (61)
Road outlet (513) connection, the port of export connect with closing space (510), by following between described first aquaporin, the second aquaporin
Ring pump circulation, by compressor pump (623) circulation between described first medium passage, second medium passage, described remaining
Heat utilization passage includes that hot water heats passage, and described hot water heats that passage end is provided with cold water inlet (624), the other end is provided with
Hot water outlet pipe (625).
The 500kV transformer station intensive style direct current ice melting system having SVG function concurrently the most according to claim 6, its feature exists
In: described UTILIZATION OF VESIDUAL HEAT IN passage also includes air heat dissipation channel.
8. according to the 500kV transformer station intensive style DC ice melting having SVG function concurrently described in any one in claim 1～7
System, it is characterised in that: the connection group of described transformator (2) is Y/y0d11, and described transformator (2) is that upper and lower winding is concentric
Spending on all four axial direction double bundle structure transformer, two windings of the secondary of described axial direction double bundle structure transformer share one
Individual iron circuit is that axial split is arranged.
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| CN201610589639.7A CN106159862B (en) | 2016-07-25 | 2016-07-25 | A kind of 500kV transformer stations intensive style direct current ice melting system for having SVG functions concurrently |
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| CN201610589639.7A CN106159862B (en) | 2016-07-25 | 2016-07-25 | A kind of 500kV transformer stations intensive style direct current ice melting system for having SVG functions concurrently |
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| CN106159862B CN106159862B (en) | 2017-11-28 |
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| CN106711906A (en) * | 2017-01-23 | 2017-05-24 | 湖南华大紫光科技股份有限公司 | Power station isolated island operation DC based deicing device and deicing method |
| CN107155280A (en) * | 2017-04-26 | 2017-09-12 | 湖南省冶金规划设计院 | A kind of integrated ventilating and cooling heat reclamation device |
| CN107453253A (en) * | 2017-08-31 | 2017-12-08 | 国网湖南省电力公司 | SVG is cooled down and afterheat utilizing system |
| CN108899852A (en) * | 2018-08-24 | 2018-11-27 | 国网湖南省电力有限公司 | A kind of intensive style DC de-icing device protection TT&C system |
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| CN108899852A (en) * | 2018-08-24 | 2018-11-27 | 国网湖南省电力有限公司 | A kind of intensive style DC de-icing device protection TT&C system |
| CN109038446A (en) * | 2018-08-24 | 2018-12-18 | 国网湖南省电力有限公司 | Intensive DC de-icing device and supervisory control of substation background information interaction platform |
| CN109149493A (en) * | 2018-10-12 | 2019-01-04 | 四川大学 | Processed thermal control equipment and control method of the multiply insulation from heating aerial earth wire |
| CN109149493B (en) * | 2018-10-12 | 2020-01-31 | 四川大学 | Heating control equipment and control method for multi-strand insulation self-heating overhead ground wire |
| CN109449854A (en) * | 2018-12-06 | 2019-03-08 | 四川大学 | Station lossless three-phase current divider and design and control method for anti-icing ice-melt |
| CN109449854B (en) * | 2018-12-06 | 2020-02-07 | 四川大学 | Station-used lossless three-phase current divider for preventing ice and melting ice and design and control method |
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