CN205863871U - 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 PDF

Info

Publication number
CN205863871U
CN205863871U CN201620790500.4U CN201620790500U CN205863871U CN 205863871 U CN205863871 U CN 205863871U CN 201620790500 U CN201620790500 U CN 201620790500U CN 205863871 U CN205863871 U CN 205863871U
Authority
CN
China
Prior art keywords
transformer station
svg
ice melting
direct current
function concurrently
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620790500.4U
Other languages
Chinese (zh)
Inventor
陆佳政
朱思国
李波
谭艳军
周秀冬
朱远
黄清军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hunan Electric Power Co Ltd, Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201620790500.4U priority Critical patent/CN205863871U/en
Application granted granted Critical
Publication of CN205863871U publication Critical patent/CN205863871U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/10Flexible AC transmission systems [FACTS]

Abstract

The utility model 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.This utility model 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

A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently
Technical field
This utility model relates to the deicing device of electrical engineering, is specifically related to a kind of 500kV transformer station having SVG function concurrently Intensive 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.
Utility model content
The technical problems to be solved in the utility model: for the problems referred to above of prior art, it is provided that one is capable of dress Put self thermal losses to recycle, and AVC system compatible can be dispatched with transformer station, for the multi-functional Study on topology of deicing device And device development provides effective and instructs, it is widely portable to the 500kV transformer station collection having SVG function concurrently of 500kV transformer station About type direct current ice melting system.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model 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.
This utility model has the 500kV transformer station intensive style direct current ice melting system of SVG function concurrently and has an advantage that
1, this utility model includes 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 and the friendship of transformer station Stream bus be connected, the secondary of described transformator by operational mode switch respectively with DC ice melting unit, dynamic passive compensation Unit is connected, it is possible to realizes ice-melt capacity with SVG capacity because being separately optimized configuration, reduces device volume and cost, meets and melt Ice high reliability and dynamic passive compensation requirement, and there is harmonic wave control function, optimize transformer station's dynamic reactive and static reactive Coordinate.
2, this utility model can collect every line voltage distribution, electric current, meritorious and nothing with Measurement-control System of Transformer Substation information exchange The information such as merit, it is achieved neighboring station voltage is estimated, with transformer station dispatch AVC system compatible, it is achieved our station dynamic electric voltage, steady state voltage and Neighboring station voltage Multiple Optimization is coordinated to control.
3, this utility model cooling system uses closed cycle air-cooled, and operation maintenance is simple, and without the risk of infiltration, and easily In the recycling realizing device self thermal losses.
4, this utility model can carry out the recovery of device self thermal losses, heat recovery plant running thermal losses produced After, heat cold water, cold water is converted into the domestic hot-water of about 55 DEG C, it is achieved the recycling of energy, reduce plant running and become This, solve existing dynamic reactive compensation device and mended the idle difficult problem damaged and gained merit, it is achieved large power power electronic appliance is real The energy-conserving and environment-protective of meaning run.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of this utility model embodiment.
Fig. 2 is the winding block diagram of the transformator of this utility model embodiment.
Fig. 3 be the transformator of this utility model embodiment two windings of secondary in flux distribution.
Fig. 4 is the thermal losses UTILIZATION OF VESIDUAL HEAT IN cellular construction schematic diagram of this utility model embodiment.
Fig. 5 is the principle schematic that application this utility model embodiment 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 benefit by transformator The rapidity repaid.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 gears voltage export, transformator 2 uses Low ESR, wide-voltage-regulation method for designing simultaneously, by the preferred arrangement of aforementioned winding with Electric Field Calculation, makes transformer regulating wide ranges reach 80% (20%~100%), and the short-circuit impedance difference of each gear is less, can Use diode rectification ice-melt, meet 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, Φ12For 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 change The ac bus in power station is connected.In the present embodiment, SVG type dynamic reactive compensator 51 uses DTWGBC-20kV type dynamic reactive Compensator, Capacitor banks and Reactor banks 52 are 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 Target Assignment such as our station dynamic electric voltage, steady state voltage, neighboring station voltage and reactive-load compensations different Regulation and control priority, while meeting high priority target, take into account the control target that priority is relatively low as far as possible, thus realize many Goal coordination controls, 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;
U s = ( U 0 + P R + Q X U 0 ) 2 + ( P X - Q R U 0 ) 2 - - - ( 1 )
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 preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

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.
CN201620790500.4U 2016-07-25 2016-07-25 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently Expired - Fee Related CN205863871U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620790500.4U CN205863871U (en) 2016-07-25 2016-07-25 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620790500.4U CN205863871U (en) 2016-07-25 2016-07-25 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently

Publications (1)

Publication Number Publication Date
CN205863871U true CN205863871U (en) 2017-01-04

Family

ID=57649231

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620790500.4U Expired - Fee Related CN205863871U (en) 2016-07-25 2016-07-25 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently

Country Status (1)

Country Link
CN (1) CN205863871U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159862A (en) * 2016-07-25 2016-11-23 国网湖南省电力公司 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently
CN109361186A (en) * 2018-12-06 2019-02-19 四川大学 Station lossless single-phase current divider and design and control method for anti-icing ice-melt
CN109361187A (en) * 2018-12-06 2019-02-19 四川大学 Lossless single-phase current divider and design and control method between line

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106159862A (en) * 2016-07-25 2016-11-23 国网湖南省电力公司 A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently
CN109361186A (en) * 2018-12-06 2019-02-19 四川大学 Station lossless single-phase current divider and design and control method for anti-icing ice-melt
CN109361187A (en) * 2018-12-06 2019-02-19 四川大学 Lossless single-phase current divider and design and control method between line
CN109361187B (en) * 2018-12-06 2020-01-24 四川大学 Line-to-line lossless single-phase shunt and design and control method
CN109361186B (en) * 2018-12-06 2020-05-19 四川大学 Station-used lossless single-phase shunt for preventing ice and melting ice and design and control method

Similar Documents

Publication Publication Date Title
CN106159862B (en) A kind of 500kV transformer stations intensive style direct current ice melting system for having SVG functions concurrently
CN205863871U (en) A kind of 500kV transformer station intensive style direct current ice melting system having SVG function concurrently
CN104167756B (en) Power flow determination method of alternating current and direct current system containing multi-terminal high voltage direct current transmission
CN105610158B (en) A kind of Distributed Power Flow controller and its control method
CN104333036B (en) Multi-source coordination control system
CN104143775B (en) A kind of power electronic transformer substation
Wang et al. A novel compensation technology of static synchronous compensator integrated with distribution transformer
CN206469330U (en) Electric heat storage boiler auxiliary thermal power plant thermal power plant unit depth peak regulation system
CN106300200A (en) A kind of removable DC de-icing device having STATCOM function concurrently and de-icing method thereof
Yang et al. Comparative study on radial topology 10kV AC and±10kV DC power distribution network
Chen et al. A 10 MW class data center with ultra-dense high-efficiency energy distribution: Design and economic evaluation of superconducting DC busbar networks
CN206908254U (en) Intensive deicing device constant current, constant pressure modularization dynamic passive compensation part
CN205791566U (en) Converter system and micro-grid system
Ramesh et al. Stabilty of Power Transmission Capability of HVDC system using facts controllers
CN204030390U (en) One power electronics transformer station
CN209627231U (en) A kind of high-voltage frequency converter braking circuit topological structure
Guo et al. Feasibility study on new energy multi-feed direct current grid connection
CN208045257U (en) Transformer
Gao et al. An overview on harmonic elimination
CN102842858B (en) Movable high-voltage high-capacity chain type STATCOM system container structure
CN206041816U (en) Mining flame proof high pressure combination converter core and converter
CN206194521U (en) Direct current electric stove is with directly falling 54 pulse wave rectifier transformer of formula
Yuan Distributed power flow controller
CN201323114Y (en) Built-in water cooled reactor
Yao et al. Industrial design and application of a railway electric special power supply

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170104

Termination date: 20210725

CF01 Termination of patent right due to non-payment of annual fee