CN205665322U - Electric wire netting adaptability testing arrangement - Google Patents
Electric wire netting adaptability testing arrangement Download PDFInfo
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- CN205665322U CN205665322U CN201620361394.8U CN201620361394U CN205665322U CN 205665322 U CN205665322 U CN 205665322U CN 201620361394 U CN201620361394 U CN 201620361394U CN 205665322 U CN205665322 U CN 205665322U
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Abstract
The utility model provides an electric wire netting adaptability testing arrangement is equipped with the phase -shifting transformer of changeable winding, and it is once held and is equipped with the adapter for the input terminal of connecting two kind at least electric pressures, with the tandem type disturbance generator that phase -shifting transformer links to each other is cascaded by a plurality of H bridge power unit for the disturbance voltage of different brackets is produced according to control signal, output filter, it is right to be used for the alternating voltage signal of tandem type disturbance generator output carries out filtering, obtains vinyl ester resin's sine wave signal, the output boosting transformer adopts the output of changeable winding, and it is right to be used for sine wave signal steps up to predetermined electric pressure, main control unit for production control command erupts simultaneously and delivers to tandem type disturbance generator. The device can be applicable to wind turbine generator system and photovoltaic inverter's electric wire netting adaptive testing, convenient to use, resources are saved simultaneously.
Description
Technical field
This utility model relates to electrical network technical field of measurement and test, particularly relates to a kind of grid adaptability test device.
Background technology
Along with the mankind pursue the continuous quickening of clean energy resource paces, generation of electricity by new energy has obtained widely developing, wind-powered electricity generation
Field carries out the conveying of electric power in the way of its cluster wind power generating set, photovoltaic plant the most centralized access power system, its
In electric power system power source structure, accounting is also significantly increased, and the impact on power system is more and more obvious.But due to wind energy turbine set, light
The building site of overhead utility is positioned at the area that scene resource relative abundance, power load are relatively small, this area's electric network composition ratio
Weaker, add randomness and the undulatory property of wind-powered electricity generation, photovoltaic is affected polytropy by cloud layer, and new forms of energy collect the frequency in area
The three-phase imbalance of fluctuation, voltage pulsation, harmonic wave, flickering and electrical network happens occasionally, and has had a strong impact on Wind turbines, photovoltaic inverse
Become the stable operation of device, cause new energy resources system to there is the biggest potential safety hazard.Steady in order to preferably promote the safety of new forms of energy
Fixed operation, relevant criterion requires that Wind turbines, photovoltaic DC-to-AC converter possess the function of grid adaptability, such as: IEC 61400-21
《Measurement and assessment of electrical characteristics–Part1-Wind
Turbines " and standard GB/T/T19963-2011 " wind energy turbine set accesses power system technology regulation ", GB/T19964-2012
" photo-voltaic power generation station accesses power system technology and specifies " is to Wind turbines, the voltage deviation of photovoltaic DC-to-AC converter, frequency departure, three-phase
Voltage unbalance, voltage flicker have all been made with harmonic wave and being distinctly claimed；" the grid-connected detection management of Wind turbines is provisional in National Energy Board
Way " (state can newly can [2010] No. 433 literary compositions), it is stipulated that " grid adaptability test " is one of Wind turbines grid-connected detection content.
By new forms of energy being collected the accident statistics of local wind group of motors, owing to Wind turbines, photovoltaic DC-to-AC converter cannot be fitted
Answer the impact of the grid disturbances such as grid voltage change, frequency fluctuation, imbalance of three-phase voltage, flickering and harmonic wave, wind-powered electricity generation off-grid thing
Part happens occasionally, and presents the feature that distribution is increasingly wider, coverage is increasing, the frequency of occurrences is the highest.Cause
This how to promote Wind turbines, photovoltaic DC-to-AC converter grid adaptability ability extremely the most urgent.But due to Wind turbines, photovoltaic
The capacity of inverter monomer is continuously increased, and carries out Wind turbines, the test surfaces of photovoltaic DC-to-AC converter grid adaptability the most at the scene
Facing the predicament without test equipment, and existing test equipment is the most general between Wind turbines and photovoltaic DC-to-AC converter, installation makes
With complicated inconvenience.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.
To this end, a purpose of the present utility model is to propose a kind of grid adaptability test device, this device can be same
Time be applied to Wind turbines and photovoltaic DC-to-AC converter grid adaptability test, easy to use, economize on resources.
For reaching above-mentioned purpose, the grid adaptability test device that this utility model embodiment proposes, can cut including being provided with
Changing the phase-shifting transformer of winding, the once end of described phase-shifting transformer is provided with adaptor, is used for connecting at least two electric pressure
Input terminal；The tandem type disturbance generator being connected with described phase-shifting transformer, is cascaded by multiple H bridge power units, is used for
Different grades of disturbance voltage is produced according to control signal；Output filter, for exporting described tandem type disturbance generator
Ac voltage signal be filtered, obtain the sine wave signal of predeterminated frequency；Output boostering transformer, uses changeable winding
Output, for boosting to the electric pressure preset to described sine wave signal；Master controller, with described tandem type disturbance generator
It is connected, is used for producing control instruction and sending to described tandem type disturbance generator.
Further, the secondary terminals of described phase-shifting transformer uses dihedral connection, and each phase comprises six groups of Secondary Winding, often
The phase angle of individual Secondary Winding misplaces 30 degree successively.
Further, described H bridge power unit is integrated by rectification module, DC filtering module, inversion module, wherein, and institute
Stating rectification module is the three phase bridge circuit using IGBT module composition, for the alternating voltage letter exported by described phase-shifting transformer
Number it is rectified into d. c. voltage signal；Described DC filtering module, for filtering the AC compounent in described d. c. voltage signal, with
Time store energy, provide stable voltage for described inversion module；Described inversion module is the single-phase of employing IGBT module composition
Bridge circuit, for according to described filtered d. c. voltage signal output single-phase ac voltage signal.
Further, the cascade of the plurality of H bridge power unit is that the single-phase AC voltage signal of six H bridge power units is defeated
Going out cascade, output signal is the phase in three-phase alternating current ripple.
Further, described output filter is LCL type wave filter.
Further, described device also includes the input protector being connected with described phase-shifting transformer, including input open circuit
Device and comprehensive protection device, for controlling the power on/off of described grid adaptability test device.
Further, described device also includes high voltage input terminal and high-voltage output end, for introducing station by high tension cable
Electric power signal in Chang；Wherein, described high voltage input terminal is connected with described input protector, and described high-voltage output end is defeated with described
Go out booster transformer to be connected.
Further, described input protector is connected with described master controller, for the control according to described master controller
Instruction controls the break-make of described input chopper.
Further, tested device is Wind turbines or photovoltaic DC-to-AC converter.
Further, described device also includes data acquisition and analysis system, is connected for gathering the outfan of described device
Wind turbines or the grid-connected information of photovoltaic DC-to-AC converter, and analyze the running status of described Wind turbines or photovoltaic DC-to-AC converter.
The grid adaptability test device that this utility model embodiment proposes, can apply at Wind turbines and photovoltaic simultaneously
Inverter, when the different object of test, only need to carry out simple scene and relocate and can test, simplify in-site installation operation
Step, and the hardware circuit designed can preferably adapt to different access objects, possesses stronger robustness；Internal circuit
Design ensure that higher performance reducing while cost.
For above and other objects, features and advantages of the present utility model can be become apparent, preferable reality cited below particularly
Execute example, and coordinate institute's accompanying drawings, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the grid adaptability test device of one embodiment of this utility model；
Fig. 2 is the counter structure schematic diagram of a Secondary Winding of the phase-shifting transformer of one embodiment of this utility model；
Fig. 3 is the coiling knot of six groups of corresponding Secondary Winding of the phase-shifting transformer of one embodiment of this utility model
Structure schematic diagram；
Fig. 4 is the structural representation of the H bridge power unit of one embodiment of this utility model；
Fig. 5 is that the cascade by the disturbance generator of multiple H bridge power units cascade of one embodiment of this utility model is electric
Line structure schematic diagram；
Fig. 6 is the structural representation of the grid adaptability test device of another embodiment of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Below with reference to the accompanying drawings the grid adaptability test device of this utility model embodiment is described.
Fig. 1 is the structural representation of the grid adaptability test device of one embodiment of this utility model, as it is shown in figure 1,
This device includes: phase-shifting transformer 10, tandem type disturbance generator 20, output filter 30, output boostering transformer 40 and master
Controller 50.
Specifically, it is provided with the once end of phase-shifting transformer described in the phase-shifting transformer 10 of changeable winding and is provided with adaptor,
For connecting the input terminal of at least two electric pressure, to adapt to the electric pressure of different tested device.More specifically, phase shift
One Secondary Winding of transformator 10 uses star connection coiling, and is designed by the double winding of original creation, when design according to scene
The specific electric pressure of Wind turbines, photovoltaic DC-to-AC converter, can be designed with two kinds of changeable windings by phase-shifting transformer 10
Transformator, according to Wind turbines high side voltage grade 35kV and photovoltaic DC-to-AC converter high side voltage grade 10kV, becomes in phase shift
The once end of depressor 10 arranges an adaptor, when testing Wind turbines, is connected to by adaptor on 35kV tap terminal,
When testing photovoltaic DC-to-AC converter, adaptor is connected on 10kV tap terminal, to ensure that the voltage that secondary exports keeps perseverance
Fixed.
In an embodiment of the application, the secondary terminals of phase-shifting transformer 10 uses dihedral connection, and each phase comprises six
Group Secondary Winding, the phase angle of each Secondary Winding misplaces 30 degree successively, phase-shifting transformer secondary terminals comprise altogether 18 secondaries around
Group, the counter structure of a Secondary Winding as shown in Figures 2 and 3, uses this kind of design can reduce the harmonic wave electricity that input side flows into
The frequency of stream and overtone order, simultaneously because secondary terminals uses dihedral connection, make the triple-frequency harmonics of outlet side cancel out each other, isolation
The harmonic wave of three times and three times multiples on electrical network.
The tandem type disturbance generator 20 being connected with described phase-shifting transformer is cascaded by multiple H bridge power units, for root
Different grades of disturbance voltage is produced according to control signal.The structural representation of tandem type disturbance generator 20 as shown in Figure 4, uses
The working method of AC-DC-exchange and the main circuit topology of first rectification inversion again.In a particular embodiment, the H of each cascade
Bridge power unit is all integrated by rectification module 21, DC filtering module 22, inversion module 23, and wherein, described rectification module is to adopt
With IGBT module [by IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor chip) with
The modularity that FWD (Freewheeling diode, fly-wheel diode chip) is encapsulated by specific circuit bridge is partly led
Body product] three phase bridge circuit that forms, for the ac voltage signal that described phase-shifting transformer exports is rectified into DC voltage
Signal；Described DC filtering module, for filtering the AC compounent in described d. c. voltage signal, stores energy, for institute simultaneously
State the voltage that inversion module provides stable；Described inversion module is the single-phase bridge circuit using IGBT module composition, for basis
Described filtered d. c. voltage signal output single-phase ac voltage signal.This ensure that the two-way flow of energy, at electrical network
When setting up voltage for Wind turbines, photovoltaic DC-to-AC converter, energy flows to Wind turbines, photovoltaic inversion from electrical network through rectification unit
Device, after Wind turbines, photovoltaic inverter grid-connected, the energy of Wind turbines, photovoltaic DC-to-AC converter output is defeated by rectification unit
Delivering to electrical network, the DC voltage of rectification unit output is designated as Ud；Owing to the d. c. voltage signal of rectification unit output also comprising
AC compounent and ripple component, after rectification unit, connection filter capacitor is as DC filtering unit, filters in direct current
AC compounent, stores energy simultaneously, provides stable voltage for inversion link.Inversion unit is the list using IGBT module composition
Phase bridge circuit, is output as single-phase alternating current by filtered d. c. voltage signal.In a specific embodiment, such as Fig. 4 institute
Showing, the IGBT module of the application can use with integrated IGBT and anti-paralleled diode, it is to avoid IGBT is because turning off suddenly the height produced
Press and puncture.
Further, the cascade of the plurality of H bridge power unit is that the single-phase AC voltage signal of six H bridge power units is defeated
Going out cascade, output signal is the phase in three-phase alternating current ripple.So can increase the voltage progression of inversion unit output, reduce defeated
Go out harmonic content, cost-effective while ensureing performance.Each phase of the secondary terminals output of phase-shifting transformer 10 all comprises 6 groups
Secondary Winding, is all connected each group of Secondary Winding with H bridge power unit, and by the single phase ac waveform of six groups of H bridge outputs
Connecting, form that amplitude is higher and the more waves AC of progression, every six groups of output stages are unified into a wherein phase of three-phase alternating current ripple,
Its circuit topological structure is as shown in Figure 5.The output of six groups of H bridge power units of A phase is joined end to end, forms the A of six groups of cascades
Export mutually, be designated as Uoa, the connected mode of B, C similar A phase separately constitutes B, C phases of six groups of cascades and exports and be designated as U respectivelyob、
Uoc, the voltage waveform that inverter can be made to export by the way of cascade is more nearly sine wave, decreases inverter output
Harmonic content.In a particular embodiment, H bridge power unit can use modularized design, by three-phase H bridge rectification unit, middle rank
Filtering direct current capacitors unit, single-phase H bridge inverter unit are integrated into a modular power cell, this ensure that power list
The versatility of unit, it is simple to mobile, dismounting and on-site maintenance.
Output filter 30, for being filtered the ac voltage signal of described tandem type disturbance generator 20 output, obtains
Sine wave signal to predeterminated frequency.It is PWM (Pulse Width by the alternating current of tandem type disturbance generator 20 output
Modulation, pulse width modulation) impulse waveform, pattern belongs to SPWM (Sinusoidal Pulse Width
Modulation, sinusoidal pulse width modulation), it is necessary to it is changed into real sinusoidal wave form by wave filter, simultaneously because H bridge power
The output of unit comprises higher hamonic wave, needs higher hamonic wave to be filtered by wave filter, and the LCL type wave filter of design is according to H bridge
The switching frequency of power cell chooses corresponding L (inductance), the actual value of C (electric capacity), designs specific cut-off frequency, it is ensured that defeated
Go out the quality of power supply of voltage.Simultaneously because the multiformity of grid adaptability test device access device, electrical network may be made to adapt to
Property equipment output vibrate, use LCL type wave filter can effectively suppress between grid adaptability device and tested load
Distributed inductance and the amplification of distribution capacity, increase damping resistance on C loop simultaneously, is used for suppressing output vibration.
Output boostering transformer 40 uses changeable winding to export, for described sine wave signal boosts to the electricity preset
Pressure grade.The voltage exported by inverter is 6.3kV, for meeting the normal access of Wind turbines, photovoltaic DC-to-AC converter, need by
6.3kV boosts to 35kV/6kV, designs the double winding way of output, by the connected mode of adjusting switchover sheet, adjusts output transformation
Device is to use 6.3kV become 35kV or use 6.3kV to become 10kV, so only need to be by changing the connection side of switching piece at the scene
Formula, can test Wind turbines or photovoltaic DC-to-AC converter.
Master controller 50 is connected with described tandem type disturbance generator, is used for producing control instruction and sending to described cascade
Formula disturbance generator 20, to produce the disturbance of different electric pressure.Specifically, the control as grid adaptability test device is big
Brain, master controller 50 also control the various relays of grid adaptability test device deciliter, adding within grid adaptability
Hot device, the control of cooling fan and the control algolithm of tandem type disturbance generator.Preferably, the device of the application can use
1764 types PLC (Programmable Logic Controller, Programmable logical controller in MicroLogix 1500 series
Device) and TI series of digital signals process in TMS28334 as Master control chip, wherein 1764 types PLC be responsible for top level control calculate
The calculating of method, and the control of the parts such as chopper, relay, heater, cooling fan, 1764 types PLC are responsible for upper simultaneously
The communication of position machine, issues control instruction by master control screen to PLC and operates, reserved host computer data communication interface simultaneously,
Long-range control is facilitated to operate.TI 28334 is responsible for the control algolithm of tandem type disturbance generator 20 and calculates, and passes through phase-shifting carrier wave
SPWM control algolithm, control the turning on and off of power cell, the alternating current that output is sinusoidal, and within it hold to add and deposit
Storage unit, can facilitate the data analysis of phenomenon of the failure with the output state of recording power unit.
The grid adaptability test device of the present embodiment, can apply at Wind turbines and photovoltaic DC-to-AC converter simultaneously, survey
During the different object of examination, only need to carry out simple scene and relocate and can test, simplify in-site installation operating procedure, and level
The design of connection formula disturbance generator can preferably adapt to different access objects, possesses stronger robust performance.By moving
The secondary terminals of phase transformer arranges 6 groups of Secondary Winding mutually, can increase the capacity of test device, and rectification unit can be adopted simultaneously
With modularized design, promote reliability and the convenience of grid disturbance device.
Fig. 6 is the structural representation of the grid adaptability test device of another embodiment of this utility model.
In an embodiment of the application, as shown in Figure 6, on the basis of Fig. 1, described device also includes high input voltage
End 60, high-voltage output end 70, input protector 80, input chopper 81, comprehensive protection device 82 and data acquisition and analysis system 90,
Wherein, input protector 80 includes inputting chopper 81 and comprehensive protection device 82 (not shown).
Wherein, input protector 80 is connected with phase-shifting transformer 10, for controlling described grid adaptability test device
Power on/off.Wherein, input protector 80 includes inputting chopper 81 and comprehensive protection device 82.
High voltage input terminal 60 and high-voltage output end 70 for introducing the electric power signal in yard by high tension cable.High pressure is defeated
Entering end 60 to be connected with input protector 80, high-voltage output end 70 is connected with output boostering transformer 40.For controlling described electrical network
The power on/off of adaptive testing device.
High voltage input terminal 60 delivers to input protector after the high-tension electricity in station introduces grid adaptability test device
80, by input chopper 81 control grid adaptability test device send power-off, 82 error protections of comprehensive protection device simultaneously
Function, can pre-set certain self-protection decision condition, in the protective condition definite value that emergency or triggering set
Time can automatically disjunction input chopper 81.Such as, inverse at Wind turbines, the photovoltaic that grid adaptability test device is internal or tested
When becoming device generation over current fault, comprehensive protection device 82 can control to input chopper 81 and quickly disconnect, it is ensured that fault and electrical network
Cut off, reduce the fault impact on electric power netting safe running.
Further, described input protector 80 is connected with described master controller 50, for according to described master controller 50
Control instruction control described input chopper 81 break-make.Described input protector 80 communicates with master controller 50, logical
Cross master controller 50 and control the disjunction of input chopper 81, reduce the error of manual operation, lifting operation efficiency.
Further, tested device can be Wind turbines or photovoltaic DC-to-AC converter.
Further, data acquisition and analysis system 90 is for gathering the connected Wind turbines of outfan or the photovoltaic of described device
The grid-connected information of inverter, and analyze the running status of described Wind turbines or photovoltaic DC-to-AC converter.This system acquisition electrical network adapts to
The three-phase voltage of system safety testing device high-voltage output end, three-phase current signal, record Wind turbines or the grid-connected ripple of photovoltaic DC-to-AC converter
Shape, carries out online data Treatment Analysis, the electrical network of Wind turbines can be adapted to ability and be evaluated.
When Wind turbines/photovoltaic DC-to-AC converter carries out grid adaptability test, disconnect Wind turbines/photovoltaic DC-to-AC converter high pressure
Side and the wiring of medium voltage network, access the input chopper of the application device, separately by Wind turbines/photovoltaic inversion by medium voltage network
The output boostering transformer outlet side of the application device is accessed in device high-pressure side, the test device of the application will be series at wind turbine
Group/between photovoltaic DC-to-AC converter high-pressure side and medium voltage network.The humorous of needs is produced by the voltage transformation within the device of the application
Ripple, voltage deviation, frequency departure, flickering, three-phase imbalance, adapt to energy for testing the electrical network of Wind turbines/photovoltaic DC-to-AC converter
Power.
Embodiments herein can be applied at Wind turbines and photovoltaic DC-to-AC converter simultaneously, when the different object of test, only
Simple scene need to be carried out relocate and can test, simplify in-site installation operating procedure, and the hardware circuit designed can
Preferably to adapt to different access objects, possesses stronger robust performance.Use medium pressure grade connection current transformer, decrease power device
The use of part, in turn ensure that the unfailing performance of current transformer.It is provided simultaneously with control function in master controller, can automatically detect electrical network
The state of adaptability device controls accordingly, simplifies operating procedure during on-the-spot test, the communication interface with pc of increase
And data storage function, make this device use more convenient and intelligent.
It should be noted that in description of the present utility model, term " first ", " second " etc. are only used for describing purpose,
And it is not intended that indicate or hint relative importance.Additionally, in description of the present utility model, except as otherwise noted, " many
Individual " it is meant that two or more.
Should be appreciated that each several part of the present utility model can realize by hardware, software, firmware or combinations thereof.?
In above-mentioned embodiment, multiple steps or method in memory and can be performed by suitable instruction execution system with storage
Software or firmware realize.Such as, if realized with hardware, with the most the same, available known in this field
Following technology in any one or their combination realize: there is the gate for data signal realizes logic function
The discrete logic of circuit, has a special IC of suitable combination logic gate circuit, programmable gate array (PGA),
Field programmable gate array (FPGA) etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Any one or more embodiments or example combine in an appropriate manner.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (10)
1. a grid adaptability test device, it is characterised in that including:
Being provided with the phase-shifting transformer of changeable winding, the once end of described phase-shifting transformer is provided with adaptor, for connecting at least
The input terminal of two kinds of electric pressures；
The tandem type disturbance generator being connected with described phase-shifting transformer, is cascaded by multiple H bridge power units, for according to control
Signal produces different grades of disturbance voltage；
Output filter, for being filtered the ac voltage signal of described tandem type disturbance generator output, is preset
The sine wave signal of frequency；
Output boostering transformer, uses changeable winding to export, for described sine wave signal boosts to the voltage etc. preset
Level；
Master controller, is connected with described tandem type disturbance generator, is used for producing control instruction and sending extremely described tandem type disturbing
Dynamic generator.
2. grid adaptability test device as claimed in claim 1, it is characterised in that the secondary terminals of described phase-shifting transformer is adopted
Using dihedral connection, each phase to comprise six groups of Secondary Winding, the phase angle of each Secondary Winding misplaces 30 degree successively.
3. grid adaptability test device as claimed in claim 1, it is characterised in that described H bridge power unit is by rectification mould
Block, DC filtering module, inversion module are integrated, wherein,
Described rectification module is the three phase bridge circuit using IGBT module composition, for the exchange exported by described phase-shifting transformer
Voltage signal is rectified into d. c. voltage signal；
Described DC filtering module, for filtering the AC compounent in described d. c. voltage signal, stores energy, for described simultaneously
Inversion module provides stable voltage；
Described inversion module is the single-phase bridge circuit using IGBT module composition, for believing according to described filtered DC voltage
Number output single-phase ac voltage signal.
4. grid adaptability test device as claimed in claim 3, it is characterised in that the plurality of H bridge power unit cascades
Being the single-phase AC voltage signal output cascade of six H bridge power units, output signal is the phase in three-phase alternating current ripple.
5. grid adaptability test device as claimed in claim 1, it is characterised in that described output filter is LCL type filter
Ripple device.
6. grid adaptability test device as claimed in claim 1, it is characterised in that also include:
The input protector being connected with described phase-shifting transformer, including input chopper and comprehensive protection device, is used for controlling described
The power on/off of grid adaptability test device.
7. grid adaptability test device as claimed in claim 6, it is characterised in that also include:
High voltage input terminal and high-voltage output end, for introducing the electric power signal in yard by high tension cable；
Wherein, described high voltage input terminal is connected with described input protector, described high-voltage output end and described output boosting transformation
Device is connected.
8. grid adaptability test device as claimed in claim 6, it is characterised in that described input protector and described master control
Device processed is connected, and controls the break-make of described input chopper for the control instruction according to described master controller.
9. the grid adaptability test device as described in any one of claim 1-8, it is characterised in that tested device is wind turbine
Group or photovoltaic DC-to-AC converter.
10. grid adaptability test device as claimed in claim 1, it is characterised in that also include:
Data acquisition and analysis system, for gathering the connected Wind turbines of outfan or the grid-connected letter of photovoltaic DC-to-AC converter of described device
Breath, and analyze the running status of described Wind turbines or photovoltaic DC-to-AC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361394.8U CN205665322U (en) | 2016-04-26 | 2016-04-26 | Electric wire netting adaptability testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361394.8U CN205665322U (en) | 2016-04-26 | 2016-04-26 | Electric wire netting adaptability testing arrangement |
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| CN205665322U true CN205665322U (en) | 2016-10-26 |
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| CN201620361394.8U Active CN205665322U (en) | 2016-04-26 | 2016-04-26 | Electric wire netting adaptability testing arrangement |
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| CN105717399A (en) * | 2016-04-26 | 2016-06-29 | 华北电力科学研究院有限责任公司 | Test device for power grid adaptability |
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| CN109120013A (en) * | 2018-10-24 | 2019-01-01 | 云南电网有限责任公司电力科学研究院 | A kind of method and device for grid adaptability detection device injection disturbance quantity |
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| CN105717399A (en) * | 2016-04-26 | 2016-06-29 | 华北电力科学研究院有限责任公司 | Test device for power grid adaptability |
| CN108445311A (en) * | 2018-03-30 | 2018-08-24 | 中国西电电气股份有限公司 | A kind of capacitor noise test loop and its test method |
| CN108445311B (en) * | 2018-03-30 | 2020-10-09 | 中国西电电气股份有限公司 | Capacitor noise test loop and test method thereof |
| CN109120013A (en) * | 2018-10-24 | 2019-01-01 | 云南电网有限责任公司电力科学研究院 | A kind of method and device for grid adaptability detection device injection disturbance quantity |
| CN109120013B (en) * | 2018-10-24 | 2022-06-07 | 云南电网有限责任公司电力科学研究院 | Method and device for detecting injection disturbance quantity of power grid adaptability detection device |
| CN111239534A (en) * | 2020-03-19 | 2020-06-05 | 广东电网有限责任公司电力科学研究院 | MMC-based high-capacity wind turbine generator system power grid adaptability integrated test system |
| CN114113870A (en) * | 2022-01-28 | 2022-03-01 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
| CN114113870B (en) * | 2022-01-28 | 2022-04-26 | 西安德纳检验检测有限公司 | New energy station power grid adaptability detection method, device and system |
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