CN107221952B - A kind of adjustable controllable wind farm group boosting collects station system - Google Patents

A kind of adjustable controllable wind farm group boosting collects station system Download PDF

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Publication number
CN107221952B
CN107221952B CN201710446457.9A CN201710446457A CN107221952B CN 107221952 B CN107221952 B CN 107221952B CN 201710446457 A CN201710446457 A CN 201710446457A CN 107221952 B CN107221952 B CN 107221952B
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China
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grounding switch
bus
disconnecting link
power plant
booster stations
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CN107221952A (en
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梁涛
邹继行
侯振国
孙天一
李燕超
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Changli Xintian Wind Energy Co ltd
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Hebei University of Technology
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    • H02J3/386—
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The present invention relates to a kind of adjustable controllable wind farm group boostings to collect station system, it is characterised in that the system includes power-management centre, collects station and n wind power plant substation, and n is natural number；The power-management centre connection collects station, collects station and is separately connected n wind power plant substation；Each wind power plant substation includes wind power plant substation booster stations and a number of blower, and a number of blower constitutes a Wind turbines, and each blower is connected with wind power plant substation booster stations；The station of collecting includes collecting station booster stations, wind power plant booster stations monitoring unit, collecting station booster stations monitoring unit, wind electric field blower monitoring unit, AGC control unit, AVC control unit, electric energy quality monitoring regulation unit, electrical energy metering unit and booster stations five-prevention operation unit.The system is connected to the grid after optimizing boosting again after capable of collecting the aggregated booster stations of voltage of each wind power plant substation booster stations, can ensure that electricity net safety stable and wind power plant economical operation optimize.

Description

A kind of adjustable controllable wind farm group boosting collects station system
Technical field
The invention belongs to wind-powered electricity generation technical field of electric power, more particularly to a kind of adjustable controllable wind farm group boosting to collect station system System.
Background technique
Wind-power electricity generation gradually obtains the extensive use of countries in the world, and so far, China's wind-powered electricity generation installation total capacity has reached the world First place, but speedup is decreased obviously, because of the randomness and unstability of wind energy, in addition the variation of atmospheric density, propeller pitch angle makes The balance for obtaining output power is difficult to be guaranteed.Therefore, the development of China's wind-powered electricity generation is going into the transitional period, from the pursuit of amount into Enter the promotion of confrontation.
Wind-electricity integration is unstable in recent years, off-grid Frequent Accidents become outstanding problem.Between another aspect wind-power electricity generation has The characteristics of having a rest property, fluctuation and randomness, wind-powered electricity generation can be lower using hourage, the submitting route of wind power plant or wind power plant cluster Light condition is in when regional wind speed is lower, asset utilization ratio is low.More distinct issues are that the existing wind power plant in China is all It is Wind turbines by being pooled to affiliated wind power plant booster stations after included box type transformer boosting, wind power plant booster stations are again Power grid is directly incorporated into after boosting.And each wind power plant generating state information can not interact in the same area, and it cannot be according to adjacent Wind power plant standing state suitably regulates and controls local wind power plant, if in the more wind power plant same periods in the same area Generating state is inconsistent, and more wind power plants are grid-connected simultaneously will certainly to generate certain influence to the stability of power grid.Single wind-powered electricity generation The access system of field is respectively designed according to its boundary condition, and the access power grid that simple superposition obtains wind power plant cluster is often difficult to reach To optimal effectiveness, the technical issues of wind-electricity integration becomes current urgent need to resolve how is solved the problems, such as.
Summary of the invention
It is an object of the present invention to be directed to the deficiency of existing wind-electricity integration mode, a kind of adjustable controllable wind farm group liter is proposed Pressure collects station system.The system optimizes again after capable of collecting the aggregated booster stations of voltage of each wind power plant substation booster stations It being connected to the grid after secondary boosting, classifies to the wind power plant substation booster stations of different brackets voltage, access collects in the booster stations of station, Collect the wind power plant substation booster stations output voltage for booster stations of standing to access and the quality of voltage of public electric wire net is above sent to carry out effectively Regulation distributes the instruction reasonably optimizing that power-management centre issues, to the wind power plant substation liter of all wind power plant substations in area under one's jurisdiction Pressure station and blower are monitored and control, and can ensure that electricity net safety stable and wind power plant economical operation optimize.
The technical solution of the present invention is as follows:
A kind of adjustable controllable wind farm group boosting collects station system, it is characterised in that the system includes in power scheduling The heart collects station and n wind power plant substation, and n is natural number；The power-management centre connection collects station, collects station and is separately connected n A wind power plant substation；Each wind power plant substation includes wind power plant substation booster stations and a number of blower, a number of Blower constitutes a Wind turbines, and each blower is connected with wind power plant substation booster stations；
It is described collect station include collect station booster stations, wind power plant booster stations monitoring unit, collect station booster stations monitoring unit, Wind electric field blower monitoring unit, AGC control unit, AVC control unit, electric energy quality monitoring regulate and control unit, electrical energy metering list Member and booster stations five-prevention operation unit；Connection relationship between each section is: wind power plant booster stations monitoring unit connects booster stations Five-prevention operation unit, wind power plant substation booster stations and AVC control unit；Wind electric field blower monitoring unit connects a number of wind Machine and AGC control unit；The connection of AVC control unit collects station booster stations monitoring unit；Collect station booster stations monitoring unit connection Collect station booster stations, electric energy quality monitoring regulation unit and booster stations five-prevention operation unit；The connection of electrical energy metering unit collects It stands booster stations, wind power plant substation booster stations and a number of blower；Collect station booster stations and connects each wind power plant substation boosting It stands；
It is described collect station booster stations using three-winding transformer as core, the three-winding transformer include low-pressure side winding, in Pressure surveys winding and high-pressure side winding, high-pressure side winding are connected with #1 bus, and medium voltage side winding is connected with #2 bus, low-pressure side winding It is connected with #3 bus, SVG+FC dynamic reactive compensation device line, I line of capacitor, II line of capacitor, capacitor is accessed on #3 bus III line, low-voltage bus bar PT and station modified line, the wind power plant substation booster stations of n wind power plant substation are according to corresponding output voltage point It Jie Ru not be on #1 bus and #2 bus；Public electric wire net and high voltage bus PT are accessed on #1 bus simultaneously, is accessed on #2 bus The output voltage of middle pressure bus PT, #2 bus can boost to the voltage of #1 bus by three-winding transformer；
The physical circuit connection for collecting station booster stations is: the low-pressure side winding coil and arrester LA5 of three-winding transformer Connect and ground, while low-pressure side winding coil is connected by handcart type breaker 312, handcart 312-2 with #3 bus；#3 bus It is separately connected handcart type breaker C31, handcart type breaker C36, handcart type breaker C35, handcart type breaker C34, handcart One end of 32-7 and handcart type breaker B32；The whole railway superstructures SVG+FC being connect through handcart type breaker C31 with #3 bus Dynamic reactive compensation device line；The whole railway superstructures capacitor I line being connect through handcart type breaker C36 with #3 bus；Through handcart Whole railway superstructures capacitor II line that formula breaker C35 is connect with #3 bus；It is connect through handcart type breaker C34 with #3 bus Whole railway superstructures capacitor III line；The whole railway superstructures low-voltage bus bar PT being connect through handcart 32-7 with #3 bus；Through handcart-type Whole railway superstructures station modified line that breaker B32 is connect with #3 bus；
The other end of the handcart type breaker C31 is separately connected grounding switch C31-CD, arrester LA10, breaker The other end of one end of C311 and disconnecting link C31-5, the grounding switch C31-CD and arrester LA10 are grounded, the disconnecting link The other end of C31-5 is connected with one end of grounding switch C31-5XD and double winding voltage transformer TV7, grounding switch C31-5XD The other end ground connection, the other end and disconnecting switch and the disconnecting link, SVG reactive-load compensator phase of the double winding voltage transformer TV7 Even；The other end of the breaker C311 is separately connected one end and the idle benefit of FC of grounding switch C311-6XD through disconnecting link C311-6 Repay device, the other end ground connection of grounding switch C311-6XD；
The other end of handcart type breaker C36 one end with grounding switch C36-5CD, disconnecting switch C36-5C respectively Connection, the other end of disconnecting switch C36-5C connect one end of grounding switch C36-CD, arrester LA11 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is that the resistance of capacitor one of resistance two of capacitor two of resistance two is sequentially connected in series, one resistance of Article 2 route Two one resistance of capacitor of resistance two of capacitor two are sequentially connected in series, and Article 3 route is the inductor with magnetic core, reactor The other end is connect with one end of earthing isolator C36-5D；The grounding switch C36-5CD, it meets grounding switch C36-CD, keep away Thunder device LA11, earthing isolator C36-5D the other end be grounded；Capacitor I line, capacitor II line and capacitor III line and #3 bus Part category used in whole route of connection and connection type are identical；
The other end of the handcart 32-7 is successively connected with breaker, four winding voltage mutual inductor TV8 ground connection, arrester The both ends of LA14 are connected in parallel on the circuit both ends after breaker is connected with four winding voltage mutual inductor TV8；
The other end of the handcart type breaker B32 respectively with grounding switch B32-5BD, two-winding transformer one End connection, the low-pressure side winding terminal of the two-winding transformer are connected with double-power supply switching device inlet wire one end, double winding transformation The neutral point of device is through current transformer TA connection double-power supply switching device inlet wire one end, double-power supply switching device leading-out terminal and single mother Line wiring be connected, the double-power supply switching device inlet wire other end by another two-winding transformer respectively with arrester LA15 and melt Disconnect one end connection closed；The other end of fuse cutout is connected with station external power, the grounding switch B32-5BD, arrester The other end of LA15 is grounded；
The neutral point of the medium voltage side winding of the three-winding transformer respectively with arrester LA4, spark gap, grounding switch One end of 112-9 is connected, and the other end of arrester LA4, spark gap, grounding switch 112-9 are grounded；Middle pressure surveys winding Coil is connect with one end of arrester LA3, grounding switch 112-4BD, disconnecting link 112-4 respectively, the other end of the disconnecting link 112-4 It is connect respectively with one end of breaker 112, grounding switch 112-4KD；The other end of the breaker 112 is separately connected earthing One end of lock 112-2KD, disconnecting link 112-2, another termination #2 bus of the disconnecting link 112-2；The grounding switch 112-4BD, The other end of arrester LA3, grounding switch 112-4KD and grounding switch 112-2KD are grounded；
Wind power plant substation booster stations 31 output end of the #2 bus through disconnecting link 134-2 and a low pressure wind power plant substation 3 It is connected；The disconnecting link 134-2 is connect with one end of breaker 134, grounding switch 134-2KD respectively；The breaker 134 it is another One end is connect with one end of grounding switch 134-5KD, disconnecting link 134-5 respectively；The other end of the disconnecting link 134-5 respectively with ground connection The connection of one end of disconnecting link 134-5XD, arrester LA1 and a capacitor, the other end of the capacitor are connected after two capacitors Ground connection, connects three winding voltage transformer TV1 between two capacitors before ground connection, and three winding voltage transformer TV1 is same When be grounded；The other end of disconnecting link 134-5 connects the three-phase output end of the wind power plant substation booster stations of the low pressure wind power plant substation simultaneously； The arrester LA1, grounding switch 134-2KD, grounding switch 134-5XD, grounding switch 134-5KD the other end be grounded； #2 bus is accessed in a manner mentioned above for the wind power plant substation booster stations of other low pressure wind power plants substation；
One end of #2 bus difference the grounding switch 12-7MD and disconnecting link 12-7, the other end of disconnecting link 12-7 connect five respectively One end of winding voltage mutual inductor TV2 and grounding switch 12-7PD；The grounding switch 12-7MD, grounding switch 12-7PD and five Winding voltage mutual inductor TV2 is grounded, and constitutes medium voltage side bus PT；
The neutral point of the high-pressure side winding of the three-winding transformer is separately connected arrester LA6, another spark gap It is grounded with the other end of one end of grounding switch 212-9, arrester LA6, another spark gap and grounding switch 212-9； The coil of the high-pressure side winding is connected with one end of arrester LA7, grounding switch 212-4BD and disconnecting link 212-4 respectively, described The other end of disconnecting link 212-4 is connect with one end of grounding switch 212-4KD and breaker 212 respectively；The breaker 212 it is another One end is connected with one end of grounding switch 212-1KD and disconnecting link 212-1 respectively, and the other end connection #1 of the disconnecting link 212-1 is female Line；The grounding switch 212-1KD, grounding switch 212-4KD, grounding switch 212-4BD and arrester LA7 the other end connect Ground；
The #1 bus is connect with one end of disconnecting link 233-1, the other end of disconnecting link 233-1 respectively with grounding switch 233- One end connection of 1KD, breaker 233；The other end of the breaker 233 respectively with grounding switch 233-5KD and disconnecting link 233-5 One end connection, the other end of the disconnecting link 233-5 respectively with grounding switch 233-5XD, arrester LA8 and capacitor One end is connected, and is grounded after the other end two capacitors of series connection of the capacitor, connects between two capacitors before ground connection Three winding voltage transformer TV4, three winding voltage transformer TV4 are grounded simultaneously；The other end of the disconnecting link 233-5 simultaneously with public affairs The three-phase voltage of common-battery net is connected；The grounding switch 233-5XD, arrester LA8, grounding switch 233-5KD and grounding switch The other end of 233-1KD is grounded；
One end of #1 bus difference the grounding switch 21-7MD and disconnecting link 21-7, the other end of disconnecting link 21-7 connect five respectively One end of winding voltage mutual inductor TV2 and grounding switch 21-7PD；The grounding switch 21-7MD, grounding switch 21-7PD and five Winding voltage mutual inductor TV5 is grounded, and constitutes high-voltage side bus PT；
The #1 bus is connect with one end of disconnecting link 234-1, the wind-powered electricity generation through disconnecting link 234-1 and a high pressure wind power plant substation Ground station booster stations output end is connected；The other end of disconnecting link 234-1 one end with grounding switch 234-1KD, breaker 234 respectively Connection；The other end of the breaker 234 is connect with one end of grounding switch 234-5KD and disconnecting link 234-5 respectively, the disconnecting link The other end of 234-5 is connected with one end of grounding switch 234-5XD, arrester LA9 and a capacitor respectively, the capacitor It is grounded after the other end two capacitors of series connection, three winding voltage transformer TV6 is connected between two capacitors before ground connection, Three winding voltage transformer TV6 is grounded simultaneously；The other end of the disconnecting link 234-5 wind-powered electricity generation with the high pressure wind power plant substation simultaneously The output end of ground station booster stations is connected；The grounding switch 234-5XD, arrester LA9, grounding switch 234-5KD and ground connection The other end of disconnecting link 234-1KD is grounded；#1 bus is accessed in a manner mentioned above for other high pressure wind power plants substation.
The beneficial effects of the present invention are:
Present system changes the wind farm grid-connected mode of tradition, by collecting station booster stations to multiple wind power plant substations liter Pressure station, which concentrate, to be collected, and is carried out classification access to the wind power plant substation booster stations of the wind power plant substation of different brackets voltage and is collected Stand in the respective bus bars of booster stations, the voltage of low pressure wind power plant substation booster stations boost again after coordination optimization, then with height The voltage of pressure wind power plant substation booster stations is collected, then is incorporated to public electric wire net.By collecting each functional unit pair in station The wind power plant substation booster stations and blower of all wind power plant substations in area under one's jurisdiction are monitored.Collect what station issued power-management centre Instruct reasonably optimizing after, then sub-distribution to wind power plant booster stations monitoring unit, wind electric field blower monitoring unit, AVC control unit, AGC control unit collects station booster stations monitoring unit, electrical energy metering unit, electric energy quality monitoring regulation unit, booster stations five Anti- operating unit.Electric energy quality monitoring regulate and control unit to access collect station booster stations wind power plant substation booster stations output voltage and On send the quality of voltage of public electric wire net to carry out Effective Regulation, AVC control unit issues idle output target to wind power plant booster stations Monitoring unit and collect station booster stations monitoring unit, whole idle output is regulated and controled；AGC control unit issue it is active go out Power target is issued to wind electric field blower monitoring unit, regulates and controls to whole active output；Electrical energy metering unit acquisition system Power-management centre is sent on meter generated energy；Booster stations five-prevention operation unit is to collecting station booster stations and wind power plant substation booster stations Remote control operation provides safety guarantee, ensure that the economy of the grid-connected safety of wind farm group and wind power plant operation.
Detailed description of the invention
Fig. 1 is the overall structure block diagram that the adjustable controllable wind farm group boosting of the present invention collects station system.
Fig. 2 collects station system wind power plant substation for the adjustable controllable wind farm group boosting of the present invention and collects station booster stations company Connect schematic diagram.
Fig. 3 be the adjustable controllable wind farm group boosting of the present invention collect a kind of embodiment of station system collect station booster stations electricity Gas figure.
In figure, station, 3 wind power plant substations, 21 wind power plant booster stations monitoring units, 22 wind-powered electricity generations are collected in 1 power-management centre, 2 Station booster stations monitoring unit, 26 electric energy meters are collected in field fan monitoring unit, 23AVC control unit, 24AGC control unit, 25 Station booster stations are collected in amount unit, 27 electric energy quality monitorings regulation unit, 28 booster stations five-prevention operation units, 29；31 wind-powered electricity generation grounds It stands booster stations, 32 blowers；
Specific embodiment
It is further described the present invention below with reference to examples and drawings, but is not protected in this, as to the claim of this application Protect the restriction of range.
Controllable wind farm group boosting that the present invention is adjustable collects station system, and (abbreviation system includes electric power tune referring to Fig. 1-3) Degree center 1, collect station 2 and n wind power plant substation 3, n be natural number；The connection of power-management centre 1 collects station 2, collects station It is separately connected n wind power plant substation 3；Each wind power plant substation 3 includes wind power plant substation booster stations 31 and a number of wind Machine 32, a number of blower 32 constitute a Wind turbines, and each blower 32 is connected with wind power plant substation booster stations 31；
The power-management centre 1 is provincial dispatching center or regional dispatching center, is existing electric power facility；
The station 2 of collecting includes collecting station booster stations 29, wind power plant booster stations monitoring unit 21, collecting station booster stations monitoring Unit 25, wind electric field blower monitoring unit 22, AGC control unit 24, AVC control unit 23, electric energy quality monitoring regulate and control unit 27, electrical energy metering unit 26 and booster stations five-prevention operation unit 28；
Connection relationship between each section is: wind power plant booster stations monitoring unit 21 connects booster stations five-prevention operation unit 28, wind power plant substation booster stations 31 and AVC control unit 23；Wind electric field blower monitoring unit 22 connects a number of blower 32 With AGC control unit 24；The connection of AVC control unit 23 collects station booster stations monitoring unit 25；Collect station booster stations monitoring unit 25 connections collect station booster stations 29, electric energy quality monitoring regulation unit 27 and booster stations five-prevention operation unit 28；Electrical energy metering The connection of unit 26 collects station booster stations 29, wind power plant substation booster stations 31 and a number of blower 32；Collect station booster stations 29 Connect each wind power plant substation booster stations 31；
It is described collect station booster stations 29 using three-winding transformer as core, the three-winding transformer include low-pressure side winding, Middle pressure surveys winding and high-pressure side winding, high-pressure side winding are connected with #1 bus, and medium voltage side winding is connected with #2 bus, low-pressure side around Group is connected with #3 bus, and SVG+FC dynamic reactive compensation device line, I line of capacitor, II line of capacitor, capacitor are accessed on #3 bus III line of device, low-voltage bus bar PT and station modified line, the wind power plant substation booster stations 31 of n wind power plant substation are according to corresponding output electricity Pressure is respectively connected on #1 bus and #2 bus；Public electric wire net and high voltage bus PT are accessed on #1 bus simultaneously, on #2 bus Bus PT is pressed in access, the output voltage of #2 bus can boost to the voltage of #1 bus by three-winding transformer；
The physical circuit connection for collecting station booster stations 29 is: the low-pressure side winding coil and arrester of three-winding transformer LA5 connect and ground, while low-pressure side winding coil is connected by handcart type breaker 312, handcart 312-2 with #3 bus；#3 Bus be separately connected handcart type breaker C31, handcart type breaker C36, handcart type breaker C35, handcart type breaker C34, One end of handcart 32-7 and handcart type breaker B32；The whole railway superstructures being connect through handcart type breaker C31 with #3 bus SVG+FC dynamic reactive compensation device line；The whole railway superstructures capacitor I line being connect through handcart type breaker C36 with #3 bus； The whole railway superstructures capacitor II line being connect through handcart type breaker C35 with #3 bus；Through handcart type breaker C34 and #3 bus Whole railway superstructures capacitor III line of connection；The whole railway superstructures low-voltage bus bar PT being connect through handcart 32-7 with #3 bus；Through Whole railway superstructures station modified line that handcart type breaker B32 is connect with #3 bus；
The other end of the handcart type breaker C31 is separately connected grounding switch C31-CD, arrester LA10, breaker The other end of one end of C311 and disconnecting link C31-5, the grounding switch C31-CD and arrester LA10 are grounded, the disconnecting link The other end of C31-5 is connected with one end of grounding switch C31-5XD and double winding voltage transformer TV7, grounding switch C31-5XD The other end ground connection, the other end and disconnecting switch and the disconnecting link, SVG reactive-load compensator phase of the double winding voltage transformer TV7 Even；The other end of the breaker C311 is separately connected one end and the idle benefit of FC of grounding switch C311-6XD through disconnecting link C311-6 Repay device, the other end ground connection of grounding switch C311-6XD；
The other end of handcart type breaker C36 one end with grounding switch C36-5CD, disconnecting switch C36-5C respectively Connection, the other end of disconnecting switch C36-5C connect one end of grounding switch C36-CD, arrester LA11 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is that the resistance of capacitor one of resistance two of capacitor two of resistance two is sequentially connected in series, one resistance of Article 2 route Two one resistance of capacitor of resistance two of capacitor two are sequentially connected in series, and Article 3 route is the inductor with magnetic core, reactor The other end is connect with one end of earthing isolator C36-5D；The grounding switch C36-5CD, it meets grounding switch C36-CD, keep away Thunder device LA11, earthing isolator C36-5D the other end be grounded；Capacitor I line, capacitor II line and capacitor III line and #3 bus Part category used in whole route of connection and connection type are identical；
The other end of handcart type breaker C35 one end with grounding switch C35-5CD, disconnecting switch C35-5C respectively Connection, the other end of disconnecting switch C35-5C connect one end of grounding switch C35-CD, arrester LA12 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is that the resistance of capacitor one of resistance two of capacitor two of resistance two is sequentially connected in series, one resistance of Article 2 route Two one resistance of capacitor of resistance two of capacitor two are sequentially connected in series, and Article 3 route is the inductor with magnetic core, reactor The other end is connect with one end of earthing isolator C35-5D；The grounding switch C35-5CD, it meets grounding switch C35-CD, keep away Thunder device LA12, earthing isolator C35-5D the other end be grounded；
The other end of handcart type breaker C34 one end with grounding switch C34-5CD, disconnecting switch C34-5C respectively Connection, the other end of disconnecting switch C34-5C connect one end of grounding switch C34-CD, arrester LA13 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is that the resistance of capacitor one of resistance two of capacitor two of resistance two is sequentially connected in series, one resistance of Article 2 route Two one resistance of capacitor of resistance two of capacitor two are sequentially connected in series, and Article 3 route is the inductor with magnetic core, reactor The other end is connect with one end of earthing isolator C34-5D；The grounding switch C34-5CD, it meets grounding switch C34-CD, keep away Thunder device LA13, earthing isolator C34-5D the other end be grounded；
The other end of the handcart 32-7 is successively connected with breaker, four winding voltage mutual inductor TV8 ground connection, arrester The both ends of LA14 are connected in parallel on the circuit both ends after breaker is connected with four winding voltage mutual inductor TV8；
The other end of the handcart type breaker B32 respectively with grounding switch B32-5BD, two-winding transformer one End connection, the low-pressure side winding terminal of the two-winding transformer are connected with double-power supply switching device inlet wire one end, double winding transformation The neutral point of device is through current transformer TA connection double-power supply switching device inlet wire one end, double-power supply switching device leading-out terminal and single mother Line wiring be connected, the double-power supply switching device inlet wire other end by another two-winding transformer respectively with arrester LA15 and melt Disconnect one end connection closed；The other end of fuse cutout is connected with station external power, the grounding switch B32-5BD, arrester The other end of LA15 is grounded；
The neutral point of the medium voltage side winding of the three-winding transformer respectively with arrester LA4, spark gap, grounding switch One end of 112-9 is connected, and the other end of arrester LA4, spark gap, grounding switch 112-9 are grounded；Middle pressure surveys winding Coil is connect with one end of arrester LA3, grounding switch 112-4BD, disconnecting link 112-4 respectively, the other end of the disconnecting link 112-4 It is connect respectively with one end of breaker 112, grounding switch 112-4KD；The other end of the breaker 112 is separately connected earthing One end of lock 112-2KD, disconnecting link 112-2, another termination #2 bus of the disconnecting link 112-2；The grounding switch 112-4BD, The other end of arrester LA3, grounding switch 112-4KD and grounding switch 112-2KD are grounded；
Wind power plant substation booster stations 31 output end of the #2 bus through disconnecting link 134-2 and a low pressure wind power plant substation 3 It is connected；The disconnecting link 134-2 is connect with one end of breaker 134, grounding switch 134-2KD respectively；The breaker 134 it is another One end is connect with one end of grounding switch 134-5KD, disconnecting link 134-5 respectively；The other end of the disconnecting link 134-5 respectively with ground connection The connection of one end of disconnecting link 134-5XD, arrester LA1 and a capacitor, the other end of the capacitor are connected after two capacitors Ground connection, connects three winding voltage transformer TV1 between two capacitors before ground connection, and three winding voltage transformer TV1 is same When be grounded；The three-phase (ABC) for the wind power plant substation booster stations that the other end of disconnecting link 134-5 connects the low pressure wind power plant substation simultaneously is defeated Outlet；The arrester LA1, grounding switch 134-2KD, grounding switch 134-5XD, the other end of grounding switch 134-5KD are equal Ground connection；#2 bus is accessed in a manner mentioned above for the wind power plant substation booster stations of other low pressure wind power plants substation；Such as The wind power plant substation booster stations of second low pressure wind power plant substation access #2 bus in the following manner: the #2 bus is through disconnecting link 135-2 is connected with second low pressure wind power plant substation；The disconnecting link 135-2 respectively with breaker 135, grounding switch 135-2KD One end connection；The other end of the breaker 135 is connect with one end of grounding switch 135-5KD, disconnecting link 135-5 respectively；Institute The other end for stating disconnecting link 135-5 is connect with one end of grounding switch 135-5XD, arrester LA2 and a capacitor respectively, the electricity It is grounded after the other end two capacitors of series connection of container, three winding mutual induction of voltage is connected between two capacitors before ground connection Device TV3, three winding voltage transformer TV3 are grounded simultaneously；The other end of disconnecting link 135-5 connects the wind of the low pressure wind power plant substation simultaneously Three-phase (ABC) output end of electric field substation booster stations；The arrester LA2, grounding switch 135-2KD, grounding switch 135- 5XD, grounding switch 135-5KD the other end be grounded；
One end of #2 bus difference the grounding switch 12-7MD and disconnecting link 12-7, the other end of disconnecting link 12-7 connect five respectively One end of winding voltage mutual inductor TV2 and grounding switch 12-7PD；The grounding switch 12-7MD, grounding switch 12-7PD and five Winding voltage mutual inductor TV2 is grounded, and constitutes medium voltage side bus PT；
The neutral point of the high-pressure side winding of the three-winding transformer is separately connected arrester LA6, another spark gap It is grounded with the other end of one end of grounding switch 212-9, arrester LA6, another spark gap and grounding switch 212-9； The coil of the high-pressure side winding is connected with one end of arrester LA7, grounding switch 212-4BD and disconnecting link 212-4 respectively, described The other end of disconnecting link 212-4 is connect with one end of grounding switch 212-4KD and breaker 212 respectively；The breaker 212 it is another One end is connected with one end of grounding switch 212-1KD and disconnecting link 212-1 respectively, and the other end connection #1 of the disconnecting link 212-1 is female Line；The grounding switch 212-1KD, grounding switch 212-4KD, grounding switch 212-4BD and arrester LA7 the other end connect Ground；
The #1 bus is connect with one end of disconnecting link 233-1, the other end of disconnecting link 233-1 respectively with grounding switch 233- One end connection of 1KD, breaker 233；The other end of the breaker 233 respectively with grounding switch 233-5KD and disconnecting link 233-5 One end connection, the other end of the disconnecting link 233-5 respectively with grounding switch 233-5XD, arrester LA8 and capacitor One end is connected, and is grounded after the other end two capacitors of series connection of the capacitor, connects between two capacitors before ground connection Three winding voltage transformer TV4, three winding voltage transformer TV4 are grounded simultaneously；The other end of the disconnecting link 233-5 simultaneously with public affairs The three-phase voltage (ABC) of common-battery net is connected；The grounding switch 233-5XD, arrester LA8, grounding switch 233-5KD and ground connection The other end of disconnecting link 233-1KD is grounded；
One end of #1 bus difference the grounding switch 21-7MD and disconnecting link 21-7, the other end of disconnecting link 21-7 connect five respectively One end of winding voltage mutual inductor TV2 and grounding switch 21-7PD；The grounding switch 21-7MD, grounding switch 21-7PD and five Winding voltage mutual inductor TV5 is grounded, and constitutes high-voltage side bus PT；
The #1 bus is connect with one end of disconnecting link 234-1, the wind-powered electricity generation through disconnecting link 234-1 and a high pressure wind power plant substation Ground station booster stations output end is connected；The other end of disconnecting link 234-1 one end with grounding switch 234-1KD, breaker 234 respectively Connection；The other end of the breaker 234 is connect with one end of grounding switch 234-5KD and disconnecting link 234-5 respectively, the disconnecting link The other end of 234-5 is connected with one end of grounding switch 234-5XD, arrester LA9 and a capacitor respectively, the capacitor It is grounded after the other end two capacitors of series connection, three winding voltage transformer TV6 is connected between two capacitors before ground connection, Three winding voltage transformer TV6 is grounded simultaneously；The other end of the disconnecting link 234-5 wind-powered electricity generation with the high pressure wind power plant substation simultaneously The output end (ABC) of ground station booster stations is connected；The grounding switch 234-5XD, arrester LA9, grounding switch 234-5KD and The other end of grounding switch 234-1KD is grounded；#1 is accessed in a manner mentioned above for other high pressure wind power plants substation Bus.
The wind power plant booster stations monitoring unit 21 is used to monitor and acquire the wind power plant substation boosting of n wind power plant substation Operating status, remote signalling amount, telemetering amount, remote regulating amount and the remote control amount stood, monitor current wind power plant substation booster stations each switch, Disconnecting link Bitwise, transformer gear, busbar voltage, bus current, frequency, active power output, idle output etc., receive AVC control The regulation and control instruction of unit processed；And important switch, the disconnecting link in the booster stations of each wind power plant substation can be remotely controlled, to wind power plant The transformer gear of substation booster stations carries out remote regulating descending operation, provides safeguard to the stable operation of wind power plant substation booster stations.
The wind electric field blower monitoring unit 22 be used to monitor and acquire n wind power plant substation blower active power, Reactive power, generator terminal electric current, set end voltage, wind speed and current operating conditions.It is flat to monitor current wind power plant mean wind speed, wind-powered electricity generation Equal power, wind power plant standby capacity, wind power plant outage capacity, wind power plant power generation capacity, the active controllable upper limit of wind power plant, wind power plant Active controllable lower limit, wind power plant the is idle controllable upper limit, wind power plant is idle controllable lower limit, the active climbing speed of wind power plant, wind power plant Active fall off rate, wind power plant are idle climbing speed, wind power plant is idle fall off rate, wind power plant AGC instruction feedback value, wind power plant Target of Reactive Power value feedback and wind power plant overall operation state, receive the regulation and control instruction of AGC control unit.And it can be according to current monitor Information is remotely controlled operation to the blower of wind power plant substation, controls starting, stopping, the reset of separate unit blower.
The AVC control unit 23 receives the idle and regulating and controlling voltage instruction that power-management centre issues, while acquiring n The current idle output in wind power plant substation and when front powers on pressure value has and receives instruction and smart allocation regulates and controls idle output and electricity Press the function of referring to.If current idle output is insufficient, AVC control unit is first to the wind power plant booster stations of low pressure wind power plant substation Monitoring unit issues reactive compensation instruction, if reactive compensation is insufficient, secondly supervises to the wind power plant booster stations of high pressure wind power plant substation Control unit issue reactive command, if reactive compensation is still insufficient, finally to collect station booster stations monitoring unit issue reactive compensation Instruction, to reach the idle and voltage-target that power-management centre is issued.
The AGC control unit 24 receives the active power output instruction that power-management centre issues, while passing through wind power plant wind Machine monitoring unit 22 acquires the current active power output information of blower of n wind power plant substation, has and receives instruction and smart allocation tune Control the function of active power output output.If current active power output output is insufficient, AGC control unit is first to low pressure wind power plant substation Wind electric field blower monitoring unit issue active power output compensating instruction, if active power output compensation is insufficient, secondly to high pressure wind power plant The wind electric field blower monitoring unit of substation issues active power output compensating instruction, controls separate unit wind by wind electric field blower monitoring unit Starting, stopping and the active power of machine are exported to reach the active power output target value that power-management centre is issued.
The station booster stations monitoring unit 25 that collects is used to monitor and acquire the operating status for collecting station booster stations, remote signalling Amount, telemetering amount, remote regulating amount and remote control amount, monitoring currently collect each switch, disconnecting link Bitwise, the transformer shelves of station booster stations Position, busbar voltage, bus current, frequency, active power output, idle output etc., receive the regulation and control instruction of AVC control unit；And energy The important switch, the disconnecting link that collect in the booster stations of station are remotely controlled, remote regulating liter is carried out to the transformer gear for collecting station booster stations Drop operation provides safeguard the stable operation for collecting station booster stations.
The electrical energy metering unit 26 is used to monitor and acquire wind power plant substation booster stations, collects station booster stations and wind-powered electricity generation The forward direction of ground station blower is active, reversed active, positive idle, reversely idle etc., to the generated energy and wind-powered electricity generation of wind power plant substation The separate unit wind turbine power generation amount at ground station carries out collect statistics and send power-management centre on simultaneously.
Electric energy quality monitoring regulation unit 27 is mainly to wind power plant substation booster stations input voltage and to public electric wire net The power quality of three-phase voltage is monitored, measurement analysis frequency departure, voltage deviation, voltage fluctuation and flickering, three-phase voltage The degree of balance, mains by harmonics are not allowed.If it was found that the above index not in the normal range, issues current state to collecting station boosting It stands monitoring unit 25, carries out regulation power quality to reach normal range (NR).
The booster stations five-prevention operation unit 28 guarantees wind power plant substation booster stations and collects station all kinds of switch/knives of booster stations The safe action of lock, prevents the equipment such as the important switch/disconnecting link of artificial maloperation, and any grid switching operation will pass through five-prevention operation list The simulation of member.Collect station booster stations monitoring unit 25 and wind power plant booster stations monitoring unit 21 will to the remote control operation of equipment It just can be carried out by the permission of five-prevention operation unit.
Further characteristic of the invention is n=3-6.
The operation principle and process that controllable wind farm group boosting that the present invention is adjustable collects station system is:
First, power-management centre 1 to collect station 2 transmitting order to lower levels, including grid-connected voltage quality, grid-connected voltage allow model It encloses, active power output target, idle output target etc..
Second, collect the order that 2 reception power-management centre 1 of station issues and execution；At the same time, wind power plant booster stations are supervised The wind power plant substation booster stations 31 that unit 21 monitors wind power plant substation are controlled, wind electric field blower monitoring unit 22 monitors wind power plant substation Blower 32, collect station booster stations monitoring unit 25 monitoring collect station booster stations 29；Electric energy quality monitoring regulates and controls 27 basis of unit Current grid-connected voltage state transmitting order to lower levels regulates and controls grid-connected voltage quality and voltage fluctuation model to station booster stations monitoring unit 25 is collected It encloses；The idle output target that AVC control unit 23 is issued power-management centre 1 is issued to wind power plant booster stations monitoring unit 21 and collect station booster stations monitoring unit 25, whole idle output is regulated and controled to reach target value；AGC control unit 24 The active power output target that power-management centre 1 is issued is issued to wind electric field blower monitoring unit 22, to the active defeated of entirety Regulated and controled out to reach target value；Power-management centre 1 is sent on the acquisition statistics generated energy of electrical energy metering unit 26；If wherein Need to collecting station booster stations 29 and wind power plant substation booster stations 31 are remotely controlled operation, booster stations five-prevention operation unit 28 understand into Row simulated operation carries out practical remote control operation after success.
Embodiment
Controllable wind farm group boosting that the present embodiment is adjustable collects station system and includes power-management centre 1, collects 2 and n of station A wind power plant substation 3, n=3；The connection of power-management centre 1 collects station 2, collects station and is separately connected 3 wind power plant substations 3； Each wind power plant substation 3 includes that wind power plant substation booster stations 31 and 33 32,33 blowers 32 of blower constitute a Wind turbines, Each blower 32 is connected with wind power plant substation booster stations 31；
Three wind power plant substation booster stations are denoted as S1, S2, S3 respectively in Fig. 2,33 blowers be denoted as respectively a1, a2 ... a33.The station booster stations 29 that collect are 220KV booster stations, and the wind power plant substation booster stations S1 is 110KV booster stations, described Wind power plant substation booster stations S2 is 110KV booster stations, and the wind power plant substation booster stations S3 is 220KV booster stations.The wind-powered electricity generation Ground station booster stations S1 output voltage, wind power plant substation booster stations S2 output voltage and wind power plant substation booster stations S3 output voltage It is respectively connected to 220KV and collects station booster stations.Wherein wind power plant substation booster stations S1 and wind power plant substation booster stations S2 output voltage It connects 110KV#2 bus and collects station booster stations；Wind power plant substation booster stations S3 output voltage input voltage connects 220KV#1 bus Remittance collects station booster stations.Wind power plant substation booster stations S1 output voltage and wind power plant substation booster stations S2 output voltage pass through remittance Integrate station booster stations and boost to collect as 220KV and wind power plant substation booster stations S3 output voltage again and is incorporated to 220KV common electrical together Net.
The power-management centre 1 is provincial dispatching center or regional dispatching center, is existing electric power facility；
The station 2 of collecting includes collecting station booster stations 29, wind power plant booster stations monitoring unit 21, collecting station booster stations monitoring Unit 25, wind electric field blower monitoring unit 22, AGC control unit 24, AVC control unit 23, electric energy quality monitoring regulate and control unit 27, electrical energy metering unit 26 and booster stations five-prevention operation unit 28；
Connection relationship between each section is: wind power plant booster stations monitoring unit 21 connects booster stations five-prevention operation unit 28, wind power plant substation booster stations 31 and AVC control unit 23；Wind electric field blower monitoring unit 22 connects a number of blower 32 With AGC control unit 24；The connection of AVC control unit 23 collects station booster stations monitoring unit 25；Collect station booster stations monitoring unit 25 connections collect station booster stations 29, electric energy quality monitoring regulation unit 27 and booster stations five-prevention operation unit 28；Electrical energy metering The connection of unit 26 collects station booster stations 29, wind power plant substation booster stations 31 and a number of blower 32；Collect station booster stations 29 Connect each wind power plant substation booster stations 31；
As shown in figure 3, the station booster stations 29 that collect are using three-winding transformer as core, which includes Pressure surveys winding and the high-pressure side 220KV winding, the high-pressure side 220KV winding and 220KV#1 bus in 35KV low-pressure side winding, 110KV It is connected, 110KV medium voltage side winding is connected with 110KV#2 bus, and 35KV low-pressure side winding is connected with 35KV#3 bus, and 35KV#3 is female On line access SVG+FC dynamic reactive compensation device line, I line of capacitor, II line of capacitor, III line of capacitor, low-voltage bus bar PT and Station modified line；Public electric wire net, high voltage bus PT and wind power plant substation booster stations S3 output voltage are accessed on 220KV#1 bus, Wind power plant substation booster stations S1 output voltage, wind power plant substation booster stations S2 output voltage and middle pressure are accessed on 110KV#2 bus Bus PT；
The physical circuit connection for collecting station booster stations 29 is: the 35KV low-pressure side winding coil of three-winding transformer and lightning-arrest Device LA5 connect and ground, while low-pressure side winding coil passes through handcart type breaker 312, handcart 312-2 and 35KV#3 bus phase Even；It is disconnected that 35KV#3 bus is separately connected handcart type breaker C31, handcart type breaker C36, handcart type breaker C35, handcart-type One end of road device C34, handcart 32-7 and handcart type breaker B32；It connect through handcart type breaker C31 with 35KV#3 bus whole Bar railway superstructures SVG+FC dynamic reactive compensation device line；The sliver being connect through handcart type breaker C36 with 35KV#3 bus Road constitutes capacitor I line；The whole railway superstructures capacitor II line being connect through handcart type breaker C35 with 35KV#3 bus；Through handcart Whole railway superstructures capacitor III line that formula breaker C34 is connect with 35KV#3 bus；It is connect through handcart 32-7 with 35KV#3 bus Whole railway superstructures low-voltage bus bar PT；It uses at the whole railway superstructures station being connect through handcart type breaker B32 with 35KV#3 bus Modified line；
The other end of the handcart type breaker C31 is separately connected grounding switch C31-CD, arrester LA10, breaker The other end of one end of C311 and disconnecting link C31-5, the grounding switch C31-CD and arrester LA10 are grounded, the disconnecting link The other end of C31-5 is connected with one end of grounding switch C31-5XD and double winding voltage transformer TV7, grounding switch C31-5XD The other end ground connection, the other end and disconnecting switch and the disconnecting link, SVG reactive-load compensator phase of the double winding voltage transformer TV7 Even；The other end of the breaker C311 is separately connected one end and the idle benefit of FC of grounding switch C311-6XD through disconnecting link C311-6 Repay device, the other end ground connection of grounding switch C311-6XD；
The other end of handcart type breaker C36 one end with grounding switch C36-5CD, disconnecting switch C36-5C respectively Connection, the other end of disconnecting switch C36-5C connect one end of grounding switch C36-CD, arrester LA11 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is the resistance of capacitor one of resistance two of capacitor two of resistance two series connection, one, Article 2 route resistance two The resistance of capacitor one of resistance two of capacitor two series connection, Article 3 route be the inductor with magnetic core, the other end of reactor with One end of earthing isolator C36-5D connects；The grounding switch C36-5CD, connect grounding switch C36-CD, arrester LA11, The other end of earthing isolator C36-5D is grounded；Capacitor I line, capacitor II line and capacitor III line are connect with 35KV#3 bus Whole route used in part category and connection type it is identical；
The other end of handcart type breaker C35 one end with grounding switch C35-5CD, disconnecting switch C35-5C respectively Connection, the other end of disconnecting switch C35-5C connect one end of grounding switch C35-CD, arrester LA12 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is the resistance of capacitor one of resistance two of capacitor two of resistance two series connection, one, Article 2 route resistance two The resistance of capacitor one of resistance two of capacitor two series connection, Article 3 route be the inductor with magnetic core, the other end of reactor with One end of earthing isolator C35-5D connects；；The grounding switch C35-5CD, grounding switch C35-CD, arrester are met LA12, earthing isolator C35-5D the other end be grounded；
The other end of handcart type breaker C34 one end with grounding switch C34-5CD, disconnecting switch C34-5C respectively Connection, the other end of disconnecting switch C34-5C connect one end of grounding switch C34-CD, arrester LA13 respectively, while through several electricity The one end for holding inductance and resistance and reactor connects, and the connection type of several capacitor and inductors and resistance is that three-line is in parallel, the One route is the resistance of capacitor one of resistance two of capacitor two of resistance two series connection, one, Article 2 route resistance two The resistance of capacitor one of resistance two of capacitor two series connection, Article 3 route be the inductor with magnetic core, the other end of reactor with One end of earthing isolator C34-5D connects；；The grounding switch C34-5CD, grounding switch C34-CD, arrester are met LA13, earthing isolator C34-5D the other end be grounded；
The other end of the handcart 32-7 is successively connected with breaker, four winding voltage mutual inductor TV8 ground connection, arrester The both ends of LA14 are connected in parallel on the circuit both ends after breaker is connected with four winding voltage mutual inductor TV8；
The other end of the handcart type breaker B32 respectively with grounding switch B32-5BD, two-winding transformer one End connection, the low-pressure side winding terminal of the two-winding transformer are connected with double-power supply switching device inlet wire one end, double winding transformation The neutral point of device is through current transformer TA connection double-power supply switching device inlet wire one end, double-power supply switching device leading-out terminal and single mother Line wiring be connected, the double-power supply switching device inlet wire other end by another two-winding transformer respectively with arrester LA15 and melt Disconnect one end connection closed；The other end of fuse cutout is connected with station external power, the grounding switch B32-5BD, arrester The other end of LA15 is grounded；
The neutral point of the 110KV medium voltage side winding of the three-winding transformer respectively with arrester LA4, spark gap, connect One end of ground disconnecting link 112-9 is connected, and the other end of arrester LA4, spark gap, grounding switch 112-9 are grounded；Middle pressure is surveyed The coil of winding is connect with one end of arrester LA3, grounding switch 112-4BD, disconnecting link 112-4 respectively, the disconnecting link 112-4's The other end is connect with one end of breaker 112, grounding switch 112-4KD respectively；The other end of the breaker 112 is separately connected One end of grounding switch 112-2KD, disconnecting link 112-2, another termination 110KV#2 bus of the disconnecting link 112-2；The earthing Lock 112-4BD, arrester LA3, grounding switch 112-4KD and grounding switch 112-2KD the other end be grounded；
The 110KV#2 bus is connected through disconnecting link 134-2 with wind power plant substation booster stations S1 output end；The disconnecting link 134- 2 connect with one end of breaker 134, grounding switch 134-2KD respectively；The other end of the breaker 134 respectively with earthing One end connection of lock 134-5KD, disconnecting link 134-5；The other end of the disconnecting link 134-5 respectively with grounding switch 134-5XD, lightning-arrest One end of device LA1 and a capacitor connects, and is grounded after the other end two capacitors of series connection of the capacitor, before ground connection Three winding voltage transformer TV1 is connected between two capacitors, three winding voltage transformer TV1 is grounded simultaneously；Disconnecting link 134-5's Three-phase (ABC) output end of the other end while the electric field substation booster stations S1 that gives a dinner for a visitor from afar；The arrester LA1, grounding switch 134- 2KD, grounding switch 134-5XD, grounding switch 134-5KD the other end be grounded；The 110KV#2 bus is through disconnecting link 135-2 It is connected with wind power plant substation booster stations S2 output end；The disconnecting link 135-2 respectively with breaker 135, grounding switch 135-2KD One end connection；The other end of the breaker 135 is connect with one end of grounding switch 135-5KD, disconnecting link 135-5 respectively；It is described The other end of disconnecting link 135-5 is connect with one end of grounding switch 135-5XD, arrester LA2 and a capacitor respectively, the capacitor It is grounded after the other end two capacitors of series connection of device, three winding voltage transformer is connected between two capacitors before ground connection TV3, three winding voltage transformer TV3 are grounded simultaneously；The other end of disconnecting link 135-5 gives a dinner for a visitor from afar the three of electric field substation booster stations S2 simultaneously Phase (ABC) output end；The arrester LA2, grounding switch 135-2KD, grounding switch 135-5XD, grounding switch 135-5KD The other end is grounded；
One end of 110KV#2 bus difference the grounding switch 12-7MD and disconnecting link 12-7, the other end point of disconnecting link 12-7 One end of five winding voltage mutual inductor TV2 and grounding switch 12-7PD is not connect；The grounding switch 12-7MD, grounding switch 12- 7PD and five winding voltage mutual inductor TV2 are grounded, and constitute medium voltage side bus PT；
The neutral point of the high-pressure side the 220KV winding of the three-winding transformer is separately connected arrester LA6, another spark The other end of the one end in gap and grounding switch 212-9, arrester LA6, another spark gap and grounding switch 212-9 connects Ground；The coil of the high-pressure side 220KV winding one end with arrester LA7, grounding switch 212-4BD and disconnecting link 212-4 respectively It is connected, the other end of the disconnecting link 212-4 is connect with one end of grounding switch 212-4KD and breaker 212 respectively；The open circuit The other end of device 212 is connected with one end of grounding switch 212-1KD and disconnecting link 212-1 respectively, the other end of the disconnecting link 212-1 Connect 220KV#1 bus；The grounding switch 212-1KD, grounding switch 212-4KD, grounding switch 212-4BD and arrester The other end of LA7 is grounded；
The 220KV#1 bus is connect with one end of disconnecting link 233-1, the other end of disconnecting link 233-1 respectively with grounding switch One end connection of 233-1KD, breaker 233；The other end of the breaker 233 respectively with grounding switch 233-5KD and disconnecting link One end of 233-5 connects, the other end of the disconnecting link 233-5 respectively with grounding switch 233-5XD, arrester LA8 and an electricity One end of container is connected, and the other end of the capacitor is connected and is grounded after two capacitors, two before ground connection capacitor it Between connect three winding voltage transformer TV4, three winding voltage transformer TV4 is grounded simultaneously；The other end of the disconnecting link 233-5 is same When be connected with the three-phase voltage (ABC) of public electric wire net；The grounding switch 233-5XD, arrester LA8, grounding switch 233-5KD It is grounded with the other end of grounding switch 233-1KD；
One end of 220KV#1 bus difference the grounding switch 21-7MD and disconnecting link 21-7, the other end point of disconnecting link 21-7 One end of five winding voltage mutual inductor TV2 and grounding switch 21-7PD is not connect；The grounding switch 21-7MD, grounding switch 21- 7PD and five winding voltage mutual inductor TV5 are grounded, and constitute high-voltage side bus PT；
The 220KV#1 bus is connect with one end of disconnecting link 234-1, through disconnecting link 234-1 and wind power plant substation booster stations S3 Output end be connected；The other end of disconnecting link 234-1 is connect with one end of grounding switch 234-1KD, breaker 234 respectively；It is described The other end of breaker 234 is connect with one end of grounding switch 234-5KD and disconnecting link 234-5 respectively, and the disconnecting link 234-5's is another One end is connected with one end of grounding switch 234-5XD, arrester LA9 and a capacitor respectively, the other end string of the capacitor It is grounded after joining two capacitors, three winding voltage transformer TV6, three winding electricity is connected between two capacitors before ground connection Pressure mutual inductor TV6 is grounded simultaneously；The other end of the disconnecting link 234-5 while the output end (ABC) of wind power plant substation booster stations S3 It is connected；The grounding switch 234-5XD, arrester LA9, the other end of grounding switch 234-5KD and grounding switch 234-1KD are equal Ground connection；
Unaccomplished matter of the present invention is well-known technique.

Claims (2)

1. a kind of adjustable controllable wind farm group boosting collects station system, it is characterised in that the system include power-management centre, Collect station and n wind power plant substation, n is natural number；The power-management centre connection collects station, collects station and is separately connected n Wind power plant substation；Each wind power plant substation includes wind power plant substation booster stations and a number of blower, a number of wind Mechanism is connected with wind power plant substation booster stations at a Wind turbines, each blower；
The station of collecting includes collecting station booster stations, wind power plant booster stations monitoring unit, collecting station booster stations monitoring unit, wind-powered electricity generation Fan monitoring unit, AGC control unit, AVC control unit, electric energy quality monitoring regulation unit, electrical energy metering unit and Booster stations five-prevention operation unit；Connection relationship between each section is: it is anti-that wind power plant booster stations monitoring unit connects booster stations five Operating unit, wind power plant substation booster stations and AVC control unit；Wind electric field blower monitoring unit connect a number of blower and AGC control unit；The connection of AVC control unit collects station booster stations monitoring unit；Collect station booster stations monitoring unit connection to collect It stands booster stations, electric energy quality monitoring regulation unit and booster stations five-prevention operation unit；The connection of electrical energy metering unit collects station and rises Pressure station, wind power plant substation booster stations and a number of blower；Collect station booster stations connection each wind power plant substation booster stations；
For the station booster stations that collect using three-winding transformer as core, which includes low-pressure side winding, medium voltage side Winding and high-pressure side winding, high-pressure side winding are connected with #1 bus, and medium voltage side winding is connected with #2 bus, low-pressure side winding and #3 Bus is connected, and SVG+FC dynamic reactive compensation device line, I line of capacitor, II line of capacitor, capacitor III are accessed on #3 bus Line, low-voltage bus bar PT and station modified line, the wind power plant substation booster stations of n wind power plant substation are distinguished according to corresponding output voltage It accesses on #1 bus and #2 bus；Public electric wire net and high voltage bus PT are accessed on #1 bus simultaneously, on #2 bus in access Bus PT is pressed, the output voltage of #2 bus can boost to the voltage of #1 bus by three-winding transformer；
The physical circuit connection for collecting station booster stations is: the low-pressure side winding coil of three-winding transformer is connect with arrester LA5 And it is grounded, while low-pressure side winding coil is connected by handcart type breaker 312, handcart 312-2 with #3 bus；#3 bus difference Connect handcart type breaker C31, handcart type breaker C36, handcart type breaker C35, handcart type breaker C34, handcart 32-7 With one end of handcart type breaker B32；The whole railway superstructures SVG+FC dynamic being connect through handcart type breaker C31 with #3 bus Reactive power compensator line；The whole railway superstructures capacitor I line being connect through handcart type breaker C36 with #3 bus；It is disconnected through handcart-type Whole railway superstructures capacitor II line that road device C35 is connect with #3 bus；It connect through handcart type breaker C34 with #3 bus whole Railway superstructures capacitor III line；The whole railway superstructures low-voltage bus bar PT being connect through handcart 32-7 with #3 bus；Through handcart-type open circuit Whole railway superstructures station modified line that device B32 is connect with #3 bus；
The other end of the handcart type breaker C31 be separately connected grounding switch C31-CD, arrester LA10, breaker C311 and The other end of one end of disconnecting link C31-5, the grounding switch C31-CD and arrester LA10 are grounded, the disconnecting link C31-5's The other end is connected with one end of grounding switch C31-5XD and double winding voltage transformer TV7, and grounding switch C31-5XD's is another End ground connection, the other end of the double winding voltage transformer TV7 are connected with disconnecting switch and disconnecting link, SVG reactive-load compensator；It is described The other end of breaker C311 is separately connected one end and the FC reactive-load compensator of grounding switch C311-6XD through disconnecting link C311-6, connects The other end of ground disconnecting link C311-6XD is grounded；
The other end of the handcart type breaker C36 connects with one end of grounding switch C36-5CD, disconnecting switch C36-5C respectively It connects, the other end of disconnecting switch C36-5C connects one end of grounding switch C36-CD, arrester LA11 respectively, while through several capacitors The connection type of the connection of one end of inductance and resistance and reactor, several capacitor and inductors and resistance is that three-line is in parallel, first Route is that the resistance of capacitor one of resistance two of capacitor two of resistance two is sequentially connected in series, one resistance two of Article 2 route One resistance of capacitor of resistance two of a capacitor two is sequentially connected in series, Article 3 route be the inductor with magnetic core, reactor it is another One end is connect with one end of earthing isolator C36-5D；The grounding switch C36-5CD, it meets grounding switch C36-CD, is lightning-arrest Device LA11, earthing isolator C36-5D the other end be grounded；Capacitor I line, capacitor II line and capacitor III line and #3 bus connect Part category used in the whole route connect and connection type are identical；
The other end of the handcart 32-7 is successively connected with breaker, four winding voltage mutual inductor TV8 ground connection, arrester LA14's Both ends are connected in parallel on the circuit both ends after breaker is connected with four winding voltage mutual inductor TV8；
The other end of the handcart type breaker B32 high-pressure side with grounding switch B32-5BD, two-winding transformer respectively Winding terminal connection, the low-pressure side winding terminal of the two-winding transformer are connected with double-power supply switching device inlet wire one end, double winding The neutral point of the low-pressure side winding of transformer is through current transformer TA connection double-power supply switching device inlet wire one end, dual power supply switching Device leading-out terminal is connected with single bus scheme, and the double-power supply switching device inlet wire other end is distinguished by another two-winding transformer It is connect with one end of arrester LA15 and fuse cutout；The other end of fuse cutout is connected with station external power, the grounding switch B32-5BD, arrester LA15 the other end be grounded；
The neutral point of the medium voltage side winding of the three-winding transformer respectively with arrester LA4, spark gap, grounding switch 112- 9 one end is connected, and the other end of arrester LA4, spark gap, grounding switch 112-9 are grounded；The coil of medium voltage side winding It is connect respectively with one end of arrester LA3, grounding switch 112-4BD, disconnecting link 112-4, the other end difference of the disconnecting link 112-4 It is connect with one end of breaker 112, grounding switch 112-4KD；The other end of the breaker 112 is separately connected grounding switch One end of 112-2KD, disconnecting link 112-2, another termination #2 bus of the disconnecting link 112-2；The grounding switch 112-4BD, it keeps away The other end of thunder device LA3, grounding switch 112-4KD and grounding switch 112-2KD are grounded；
The #2 bus is connected through disconnecting link 134-2 with 31 output end of wind power plant substation booster stations of a low pressure wind power plant substation 3； The disconnecting link 134-2 is connect with one end of breaker 134, grounding switch 134-2KD respectively；The other end of the breaker 134 It is connect respectively with one end of grounding switch 134-5KD, disconnecting link 134-5；The other end of the disconnecting link 134-5 respectively with grounding switch One end of 134-5XD, arrester LA1 and a capacitor connects, and is grounded after the other end two capacitors of series connection of the capacitor, Three winding voltage transformer TV1 is connected between two capacitors before ground connection, three winding voltage transformer TV1 connects simultaneously Ground；The other end of disconnecting link 134-5 connects the three-phase output end of the wind power plant substation booster stations of the low pressure wind power plant substation simultaneously；It is described Arrester LA1, grounding switch 134-2KD, grounding switch 134-5XD, grounding switch 134-5KD the other end be grounded；For The wind power plant substation booster stations of other low pressure wind power plants substation access #2 bus in a manner mentioned above；
One end of #2 bus difference the grounding switch 12-7MD and disconnecting link 12-7, the other end of disconnecting link 12-7 connect five windings respectively One end of voltage transformer TV2 and grounding switch 12-7PD；The grounding switch 12-7MD, grounding switch 12-7PD and five windings Voltage transformer TV2 is grounded, and constitutes medium voltage side bus PT；
The neutral point of the high-pressure side winding of the three-winding transformer is separately connected arrester LA6, another spark gap and connects One end of ground disconnecting link 212-9, the other end of arrester LA6, another spark gap and grounding switch 212-9 are grounded；It is described The coil of high-pressure side winding is connected with one end of arrester LA7, grounding switch 212-4BD and disconnecting link 212-4 respectively, the disconnecting link The other end of 212-4 is connect with one end of grounding switch 212-4KD and breaker 212 respectively；The other end of the breaker 212 It is connected respectively with one end of grounding switch 212-1KD and disconnecting link 212-1, the other end of the disconnecting link 212-1 connects #1 bus；Institute The other end for stating grounding switch 212-1KD, grounding switch 212-4KD, grounding switch 212-4BD and arrester LA7 is grounded；
The #1 bus is connect with one end of disconnecting link 233-1, the other end of disconnecting link 233-1 respectively with grounding switch 233-1KD, disconnected One end of road device 233 connects；The other end of the breaker 233 one end with grounding switch 233-5KD and disconnecting link 233-5 respectively Connection, the other end of disconnecting link 233-5 one end phase with grounding switch 233-5XD, arrester LA8 and a capacitor respectively Even, it is grounded after the other end two capacitors of series connection of the capacitor, connects three winding between two capacitors before ground connection Voltage transformer TV4, three winding voltage transformer TV4 are grounded simultaneously；The other end of the disconnecting link 233-5 while and public electric wire net Three-phase line be connected；The grounding switch 233-5XD, arrester LA8, grounding switch 233-5KD and grounding switch 233-1KD The other end be grounded；
One end of #1 bus difference the grounding switch 21-7MD and disconnecting link 21-7, the other end of disconnecting link 21-7 connect five windings respectively One end of voltage transformer TV2 and grounding switch 21-7PD；The grounding switch 21-7MD, grounding switch 21-7PD and five windings Voltage transformer TV5 is grounded, and constitutes high-voltage side bus PT；
The #1 bus is connect with one end of disconnecting link 234-1, the wind-powered electricity generation ground through disconnecting link 234-1 and a high pressure wind power plant substation Booster stations output end of standing is connected；The other end of disconnecting link 234-1 connects with one end of grounding switch 234-1KD, breaker 234 respectively It connects；The other end of the breaker 234 is connect with one end of grounding switch 234-5KD and disconnecting link 234-5 respectively, the disconnecting link The other end of 234-5 is connected with one end of grounding switch 234-5XD, arrester LA9 and a capacitor respectively, the capacitor It is grounded after the other end two capacitors of series connection, three winding voltage transformer TV6 is connected between two capacitors before ground connection, Three winding voltage transformer TV6 is grounded simultaneously；The other end of the disconnecting link 234-5 wind-powered electricity generation with the high pressure wind power plant substation simultaneously The output end of ground station booster stations is connected；The grounding switch 234-5XD, arrester LA9, grounding switch 234-5KD and ground connection The other end of disconnecting link 234-1KD is grounded；#1 bus is accessed in a manner mentioned above for other high pressure wind power plants substation.
2. adjustable controllable wind farm group boosting according to claim 1 collects station system, it is characterised in that n=3-6.
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CN108387801B (en) * 2018-03-28 2024-05-17 华电电力科学研究院有限公司 Wind power station electric energy quality testing device and testing method
CN110544580A (en) * 2018-10-31 2019-12-06 中国能源建设集团广东省电力设计研究院有限公司 Main transformer and boosting system of offshore wind power plant boosting station
CN109617118B (en) * 2018-12-12 2022-04-12 云南电网有限责任公司电力科学研究院 Method for determining grounding mode of direct current boosting convergence access system of photovoltaic power station
CN113271340B (en) * 2021-04-26 2023-03-28 中国电建集团华东勘测设计研究院有限公司 Network networking and monitoring system configuration structure suitable for offshore wind farm

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