CN209342822U - A kind of flexible direct current transmission converter valve detection system - Google Patents
A kind of flexible direct current transmission converter valve detection system Download PDFInfo
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- CN209342822U CN209342822U CN201821578392.XU CN201821578392U CN209342822U CN 209342822 U CN209342822 U CN 209342822U CN 201821578392 U CN201821578392 U CN 201821578392U CN 209342822 U CN209342822 U CN 209342822U
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Abstract
The utility model discloses flexible direct current transmission converter valve detection system, including the back-to-back flexible DC transmission model machine of both-end, communication interface arrangement and N number of electrical connection arrangement；Model machine includes corresponding bridge arm, acquisition device and pole control device；Electrical connection arrangement accompanies examination bridge arm and tested converter valve for connecting model machine, to adapt to distinct device producer electric interfaces；Communication interface arrangement is used to connect included, the original valve control device and pole control device of tested converter valve, to realize the transmission of signal between included, original valve control and pole control；Acquisition device will collect the voltage of model machine, current data is transferred to pole control device；Pole control device will export modulating wave to all valve control devices after the data processing received, so that valve control device outputs control signals to corresponding converter valve after handling according to modulating wave, after the tested converter valve is worked according to the control signal, corresponding voltage and current etc. is exported, the detection datas such as acquisition device collection voltages electric current realize closed loop detection.
Description
Technical field
The present invention relates to flexible DC transmission technology field more particularly to flexible direct current transmission converter valve detection system and sides
Method.
Background technique
In recent years, answering with the renewable energy power generations technology such as the development of power electronic devices and wind-force, solar energy
With flexible DC transmission technology is at home and abroad developed rapidly and applies.Relatively traditional high voltage dc transmission technology, it is soft
Property direct current transportation be a kind of more flexible, the less New DC transmission mode of harmonic wave of control, be based on turn-off device and arteries and veins
The DC transmission system that the voltage source converter of width modulation technology is constituted is rushed, in new-energy grid-connected, island power supply and different
The fields such as step networking have been widely used.Based on modularization multi-level converter (MMC, Modular Multilevel
Converter because it is in active power and reactive power independent control, new energy accesses, is asynchronous flexible HVDC transmission system)
The unique advantage of networking and urban electricity supply etc., flexible DC transmission at sea wind-electricity integration, power grid flexible interconnection, remote
The occasions such as large capacity power transmission are widely used.
Converter valve is the core equipment of flexible DC transmission, the stability and the change of current of converter valve operation directly in decision engineering
Valve overall performance index, research flexible direct current converter valve detection method can carry out the performance of third-party converter valve more complete
The verifying of the detection in face, construction and later period operation to flexible direct current engineering have great importance.
Inventor in implementing the embodiments of the present invention, it is found that domestic and international flexible direct current converter valve equipment producer goes out in converter valve
Before factory, valve section or small-sized physical model machine voluntarily to be built, type approval test only is carried out to the converter valve of itself production, testing cost is high,
And testing result is difficult to compare with other producers, causes to be difficult to directly to compare and evaluate the whole of distinct device producer converter valve
Body performance lacks the appliance arrangement that a kind of pair of distinct device producer converter valve carries out direct contrasting detection and analysis.
Utility model content
The purpose of the utility model embodiment is to provide a kind of flexible direct current transmission converter valve detection system, can be suitable for
Flexible HVDC transmission system can not only carry out comprehensive detection and verifying, additionally it is possible to or not converter valve overall performance index
Overall performance index with the soft straight converter valve of equipment manufacturer carries out more complete contrast and evaluation, save a large number of experiments economy at
Originally, human cost and time cost, implementation method is simple, easy to operate.
To achieve the above object, the utility model embodiment provides a kind of detection of one flexible direct current transmission converter valve of offer
System, comprising: the back-to-back flexible DC transmission model machine of both-end, communication interface arrangement and N number of electrical connection arrangement；
Every end of the back-to-back flexible DC transmission model machine of both-end is 6 bridge arms of three-phase, including acquisition device and pole control
Device；Wherein, the number of N is equal to the number of tested converter valve, and N is greater than or equal to 1；
Described electrical connection arrangement one end connects the bridge arm interface of the back-to-back flexible DC transmission model machine of the both-end, described
The other end of electrical connection arrangement connects the tested converter valve；
Described communication interface arrangement one end connects the included valve control device of the tested converter valve, the communication interface arrangement
The other end connects the pole and controls device；
The acquisition device is separately connected the tested converter valve and pole control device, will collect the tested change of current
The detection data of valve is transferred to the pole control device；Wherein, the detection data includes alternating voltage, alternating current, direct current
Pressure and DC current；
The pole control device connects the included valve control device of the tested converter valve, is exported and is modulated according to the detection data
Wave, and the modulating wave is transferred to the included valve control device, so that the included valve control device is according to the modulating wave
Output control signals to the corresponding tested converter valve.
Further, the back-to-back flexible DC transmission model machine of the both-end further include: valve control device；
The valve control device bridge arm and the communication interface with the back-to-back flexible DC transmission model machine of the both-end respectively
One end of device connects, and to control the modulating wave output control signal that device is sent according to the pole, and the control is believed
Number output is to corresponding bridge arm.
Further, further includes:
The tested converter valve connects the included valve control device by optical fiber, and the data of the tested converter valve are led to
It crosses the included valve control device and is transmitted to the pole control device；Wherein, the data include the capacitor electricity of the tested converter valve
Pressure.
Further, the communication interface arrangement includes M main channel and M redundant channel；Wherein, M is greater than or equal to
6；
Then described communication interface arrangement one end connects the included valve control device of the tested converter valve, the communication interface dress
The one end set connects the valve control device
The communication interface arrangement by the main channels M respectively with the included valve control device and the valve control device
Connection；
The communication interface arrangement is filled with the included valve control device and the valve control respectively by the M redundant channels
Set connection.
Further, the communication interface arrangement further includes a trunk channel and an alternate channel；
Then the other end connection of the communication interface arrangement pole control device includes:
The communication interface arrangement is controlled device with the pole by trunk channel and is connect, and the communication interface fills
It sets and is connect by an alternate channel with pole control device.
Further, the electrical connection arrangement includes the insulator bracket for fixing the tested converter valve and mother
Row；
One end of the busbar connects described electrical connection arrangement one end, and the other end connection of the busbar is described electrically to be connected
The connection device other end.
Compared with prior art, flexible HVDC transmission system converter valve detection method and system tool disclosed by the utility model
It has the advantages that:
A kind of flexible direct current transmission converter valve detection system, including the back-to-back flexible DC transmission model machine of both-end, communication connect
Mouth device and N number of electrical connection arrangement；Model machine includes that device is controlled in 12 bridge arms, acquisition device and pole；Electrical connection arrangement is used for
Connection model machine accompanies examination bridge arm and tested converter valve, to adapt to distinct device producer electric interfaces；Communication interface arrangement is for connecting
Device is controlled in included, the original valve control device of tested converter valve and pole, to realize signal between included, original valve control and pole control
Transmission；Acquisition device will collect the voltage of model machine, current data is transferred to pole control device；The data that pole control device will receive
Modulating wave is exported after processing to all valve control devices, so that valve control device outputs control signals to phase after handling according to modulating wave
The converter valve answered exports corresponding voltage and current etc., adopts after the tested converter valve is worked according to the control signal
The detection datas such as acquisition means collection voltages electric current realize closed loop detection, detect the performance of the tested converter valve.It is carried on the back by both-end
Backrest flexible DC transmission model machine, electrical connection arrangement and communication interface arrangement may be implemented not allowing connecing for the long family's converter valve of equipment
Enter, realize the detection on extra-high voltage flexible HVDC transmission system model machine to converter valve, voluntarily builds valve relative to existing
Section or small-sized physical model machine are detected, and the present embodiment can also be saved big more fully to the performance detection of converter valve and verifying
Amount test economic cost, human cost and time cost, implementation method is simple, easy to operate.And it is filled by N number of electrical connection
It sets, so that it may which the converter valve for accessing N number of distinct device producer realizes direct comparative evaluation's distinct device producer converter valve
Energy.
Detailed description of the invention
Fig. 1 is the structural block diagram for the back-to-back flexible DC transmission model machine of both-end that the embodiment of the present invention one provides；
Fig. 2 is the structural block diagram for the flexible direct current transmission converter valve detection system that the embodiment of the present invention one provides；
Fig. 3 is the structural schematic diagram for the valve control device redundancy setting that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram for the communication interface arrangement that the embodiment of the present invention one provides.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one
It should be noted that in the prior art, producer is before converter valve factory, by building valve section or small-sized physical sample
Machine carries out type approval test to the converter valve, and type approval test can be divided into operation test and Insulation Test two major classes, operation examination
The purpose tested is check valve and interlock circuit, in operating status on-state under the conditions of the repeat function of most serious, turn on and off
It is whether suitable for the effect of electric current, voltage and temperature when state, while proving between valve electronic circuit and valve major loop mutually
The correctness of effect；Insulation Test is broadly divided into the insulation tolerance between valve support and valve end to the insulation examination of converter valve.
Therefore, insulation type test includes that valve support is exhausted, is broadly divided into the insulation between valve support and valve end to the insulation examination of converter valve
Tolerance.Therefore, insulation type test includes Insulation Test between valve support Insulation Test and valve end.Pass through small-sized physical model machine
Carrying out type approval test to converter valve cannot achieve to change of current valve performance complete detection, and each producer is when producing a converter valve
It all carries out physical prototyping to build, test economic cost, human cost and time cost can be improved, can't be realized to multiple equipment
The direct comparative evaluation of the performance of producer's converter valve.
It is the structural frames for the back-to-back flexible DC transmission model machine of both-end that the embodiment of the present invention one provides referring to Fig. 1, Fig. 1
Figure.
In embodiments of the present invention, by building the model prototype of the back-to-back flexible HVDC transmission system of both-end, it is used for mould
Quasi- flexible HVDC transmission system in practice has both ends with the back-to-back flexible DC transmission model machine, and there are six bridges for every end tool
It is illustrated for arm 11, for flexible HVDC transmission system, at least needs both ends ability transimission power, that is, have rectification side 101
With inverter side 102, wherein alternating current is rectified into direct current through converter valve by rectification side 101, and direct current is by line transmission to inverter side
102, DC inversion is exchange by the converter valve of inverter side 102, completes the transmission process of entire electric energy.Bridge arm 11 is by several function
Rate module composition.Specific control flow are as follows: acquisition device 12 acquires alternating voltage, alternating current, DC voltage, DC current
Etc. information, and sent after the information of acquisition is handled to system-level control device, i.e., control device 13 in pole (controls pole in abbreviation pole
Control and protection, PCP), it is handled by pole control device 13, exports modulating wave.Illustratively, device is controlled in pole
13 handle alternating voltage electric current with control theories algorithms such as dq transformation, Park Transformations in Control card by lock (PLL) ring
After processing, the DC voltage or power instruction that can be referred to, and then the modulating wave generated, the modulating wave is passed into valve grade
Control device, that is, valve control device 14.Valve control device 14 is after the processing of the selection algorithms such as sequence, each of corresponding each bridge arm 11
Power module can all generate corresponding control signal, and the valve control device 14 is passed to the control signal by optical fiber each
Each power module of bridge arm 11.The fluctuations such as the DC voltage and current that the power module generates in switching process can pass through again
Acquisition device 12 passes to pole control device 13, to form a closed loop detection.The information such as the capacitance voltage of power module also can
By being sent to valve control device 14 on pooling together after collecting fiber, control device 13 in pole is passed to by valve control device 14, is completed
Control monitoring of the device 13 to bridge arm 11 in pole.
Referring to fig. 2, Fig. 2 is the structural frames for the flexible direct current transmission converter valve detection system that the embodiment of the present invention one provides
Figure.
A kind of flexible direct current transmission converter valve detection system characterized by comprising the back-to-back flexible DC transmission of both-end
30 (not shown) of model machine 10, communication interface arrangement 20 and N number of electrical connection arrangement；
The back-to-back flexible DC transmission model machine 10 of both-end has both ends, and every end is 6 bridge arms of three-phase, including acquisition device
12 and pole control device 13；Wherein, the number of N is equal to the number of tested converter valve 40, and N is greater than or equal to 1；
The bridge arm 11 that described 30 one end of electrical connection arrangement connects the back-to-back flexible DC transmission model machine 10 of the both-end connects
Mouthful, the other end of the electrical connection arrangement 30 connects the tested converter valve 40, for accessing the tested converter valve 40
The back-to-back flexible DC transmission model machine 10 of both-end, to replace the corresponding bridge arm 11 of 11 interface of bridge arm；
Described 20 one end of communication interface arrangement connects the included valve control device 41 of the tested converter valve 40, and the communication connects
The other end of mouth device 20 connects the pole and controls device 13, controls device 13 with the pole for realizing the included valve control device 41
Between signal transmission；
The acquisition device 12 is used to for the detection data for collecting the tested converter valve 40 being transferred to the pole control dress
Set 13；Wherein, the detection data includes alternating voltage, alternating current, DC voltage and DC current；
The pole control device 13 is used to export modulating wave according to the detection data received, and the modulating wave is defeated
Out to the included valve control device 41, so that the included valve control device 41 outputs control signals to phase according to the modulating wave
The tested converter valve 40 answered, after the tested converter valve 40 exports corresponding detection data according to the control signal,
The acquisition device 12 acquires the detection data and realizes closed loop detection.
In embodiments of the present invention, the back-to-back flexible DC transmission model machine 10 of the both-end has both ends, that is, has rectification side
101 with inverter side 102, it is generally preferable to test is replaced with any side, the other side is to accompany to try end.It is exemplary, it is assumed that whole
Stream side 101 and inverter side 102 all have there are six bridge arm 11, in certain primary test, 5 different converter valves have been replaced whole
Flow 5 bridge arms 11 in side 101, the then bridge arm 11 not being replaced in the rectification side 101 and the six of the inverter side 102
A bridge arm 11 is to accompany examination bridge arm 11.
It should be noted that the number of the electrical connection arrangement 30 is according to the different manufacturers that be actually subjected to be detected
Different converter valves determine, for example, the converter valves that have A different, then the data N=A of electrical connection arrangement 30.Because different
The valve tower structural shape of the converter valve of producer or the different converter valves of same producer is inconsistent, it is possible that size is unmatched
Situation needs then when the back-to-back flexible DC transmission model machine 10 of size and the both-end for needing converter valve to be tested mismatches
A upper electrical connection arrangement 30 is connected for the converter valve, it is defeated that converter valve is accessed into the back-to-back flexible direct current of the both-end
It is tested in electric model machine 10.The electrical connection arrangement 30 of the embodiment of the present invention is used to tested converter valve 40 accessing test prototype
In, that is, the back-to-back flexible DC transmission model machine 10 of the both-end is accessed, the back-to-back flexible DC transmission model machine of the both-end is replaced
Bridge arm 11 in 10.
Further, the electrical connection arrangement 30 include for fix the insulator bracket of the tested converter valve 40 and
Busbar；
One end of the busbar connects described 30 one end of electrical connection arrangement, and the other end connection of the busbar is described electrical
30 other end of attachment device.
In embodiments of the present invention, the electrical connection arrangement 30 is exactly in the back-to-back flexible DC transmission sample of the both-end
By machine 10, an insulator bracket is set, for fixing the tested converter valve 40, passes through the quilt on busbar or cable connection
Converter valve 40 is surveyed, then the busbar or cable are accessed to 11 interface of bridge arm of the back-to-back flexible DC transmission model machine 10 of the both-end
On；Illustratively, it is tested 11 interface of A bridge arm that converter valve 40 has accessed the back-to-back flexible DC transmission model machine 10 of the both-end,
Then the tested converter valve 40 has replaced the A bridge arm 11, the interface of the A bridge arm 11 is extended accordingly, to keep away
Tested converter valve 40 is being accessed the bridge arm being replaced by the interference for exempting from signal between A bridge arm 11 and the tested converter valve 40
Behind 11 position, the bridge arm 11 being replaced no longer works.
Further, the back-to-back flexible DC transmission model machine 10 of the both-end further include: valve control device 14；
The valve control device 14 respectively with the bridge arm 11 of the back-to-back flexible DC transmission model machine 10 of the both-end and described logical
One end of communication interface device 20 connects, to control the modulating wave output control signal that device 13 is sent according to the pole, and will
The control signal is exported to corresponding bridge arm 11.
It should be noted that in embodiments of the present invention, valve control device includes that the back-to-back flexible direct current of the both-end is defeated
Original valve control device 14 of electric model machine 10 and third party are tested the included valve control device 41 of converter valve 40, then the both-end is back-to-back
The valve control device at the every end of flexible DC transmission model machine 10 can have 6 sets or more, can be accessed more by the electrical interface assembly
More included valve control devices 41, the present invention is not especially limited this.
It should be noted that the bridge arm 11 of the same end of the back-to-back flexible DC transmission model machine 10 of both-end has one
Unified valve control device 14 because the power module of the bridge arm 11 of the back-to-back flexible DC transmission model machine 10 of the both-end with it is described
Agreement between valve control device 14 is consistent, it is possible to use same valve control device 14.In the back-to-back flexible direct current of the both-end
There are two valve control device 14 in transmission of electricity model machine 10, a valve control device 14 corresponds to rectification side 101, another valve control device 14 is right
Answer inverter side 102.
Further, further includes:
The tested converter valve 40 connects the included valve control device 41 by optical fiber, by the tested converter valve 40
Data are transmitted to the pole by the included valve control device 41 and control device 13；Wherein, the data include the tested change of current
The capacitance voltage of valve 40.
It should be noted that different manufacturers power module and valve control fill because of valve level controller ununified so far
Communications protocol between setting is inconsistent, can not be directly connected to control.Therefore when detecting different converter valves, it is necessary to while subject being provided
Bridge arm 11 (tested converter valve 40) and the corresponding valve control device of the tested converter valve 40 (included valve control device 41).
Further, the communication interface arrangement 20 includes M main channel and M redundant channel；Wherein, M is greater than or waits
In 6；
Then described 20 one end of communication interface arrangement connects the included valve control device 41 of the tested converter valve 40, the communication
One end of interface arrangement 20 connects the valve control device 14
The communication interface arrangement 20 by the main channels M respectively with the included valve control device 41 and the valve control
Device 14 connects；
The communication interface arrangement 20 by the redundant channels M respectively with the included valve control device 41 and the valve
Device 14 is controlled to connect.
Further, the communication interface arrangement 20 further includes a trunk channel and an alternate channel；
Then the other end connection of the communication interface arrangement 20 pole control device 13 includes:
The communication interface arrangement 20 is controlled device 13 with the pole by trunk channel and is connect, and the communication connects
Mouth device 20 is controlled device 13 with the pole by an alternate channel and is connect.
In embodiments of the present invention, pole control device 13 and the included valve control device 41 and the valve control device 14 it
Between increase a communication interface arrangement 20, for by the information of multiple valve control devices (valve control device 14 and included valve control device 41)
Such as power module voltage information taken is then passed to pole control device 13, because pole control device 13 has reserved 2 interfaces to two
It holds (rectification side 101, inverter side 102), then can obtain the information and inverter side 102 of the valve control device 14 of rectification side 101 respectively
Valve control device 14 information, in addition the communication interface arrangement 20 also by pole control device 13 modulating wave be distributed to each valve control
Device (valve control device 14 and included valve control device 41), each valve control device (valve control device 14 and included valve control device 41) is voluntarily
Control signal is generated, each module of each bridge arm 11 is passed to by optical fiber, to control whole system.
It should be noted that be greater than or equal to 1 in N, and when N is less than or equal to 6, then the back-to-back flexible direct current of the both-end
Transmission of electricity model machine 10, one end are test leads, and the other end is to accompany examination end, are being test lead with rectification side 101, inverter side 102 is to accompany examination
When end, then rectification side 101 can have two or more valve control devices, one of them is the back-to-back flexible DC transmission of the both-end
Original valve control device 14 of model machine 10, remaining is the tested corresponding included valve control device 41 of converter valve more than 40.It is exemplary, whole
When flowing only one the tested converter valve 40 of side 101, then there are two valve control device (valve control device 14 and included valve controls for rectification side 101
Device 41), one be the back-to-back flexible DC transmission model machine 10 of the both-end original valve control device a, one is described tested
The included valve control device b of converter valve 40, the communication interface arrangement 20 connect the valve control device a and the included valve control device
b。
In embodiments of the present invention, if 6 bridge arms 11 of certain side of the model machine are all from different manufacturers, thus it is described
Communication interface arrangement 20 need to realize that will singly cover pole control device 13 is that downlink data is forwarded by 6 different included valve control devices 41
To corresponding bridge arm 11, i.e., 6 different tested converter valves 40, or by the number of 6 different 41 uplinks of included valve control device
Device 13 is controlled to pole according to summarizing.In the prototyping system, it is single set configuration that device 13 is controlled in pole, and valve control device 14 is matched for redundancy
It sets, included valve control device 41 can also be arranged with redundancy, the active and standby set switching of valve control be carried out in pole control device 13, as long as there is a bridge
Switching is requested in the valve control of arm 11, and the valve control device of all bridge arms 11 can all switch.Illustratively, referring to Fig. 3, valve control device it is superfluous
Remaining setting covers based on A1, A2, A3, A4, A5, A6, and B1, B2, B3, B4, B5, B6 are spare set
In embodiments of the present invention, redundancy setting has been carried out to the communication channel of communication interface arrangement 20, illustratively, with
There are the back-to-back flexible DC transmission model machine 10 of both-end 12 bridge arms 11 to be illustrated, the communication interface arrangement 20 and institute
Stating pole control device 13 has the communication of 2 tunnels, including trunk channel, alternate channel, and Content of communciation is that device 13 is controlled in the pole and valve control fills
The some amount of communication is set, this is not described in detail specifically by the present invention.The communication interface arrangement 20 has the communication of 12 tunnels with valve control device,
The signal received from pole control device 13 is forwarded to valve control device, does not need to handle signal, the communication delay of downlink is wanted
Ask control in us rank；With the explanation of rectification side 101, similarly, the communication interface arrangement 20 is from the 6 of rectification side 101 for inverter side 102
After the signal that the corresponding valve control device of a bridge arm 11 receives summarizes, point main set and spare set issue the pole control device 13, delay
Control is in us rank.
The hardware configuration of communication interface arrangement is briefly introduced below, hardware configuration mainly includes industrial personal computer, hands over
It changes planes, interface box.Referring to fig. 4, communication interface arrangement entity apparatus is exactly interface cabinet, wherein interface box include PW1 power panel,
CO recording plate, CO communication board, 1#FT3 plate, 2#FT3 plate, MC master control borad, 1#PU plate, 2#PU plate and 3#PU plate, PW1 power panel are used
In providing power supply for the board in controller；CO recording plate is used to can record the modulated signal of each bridge arm, the event such as tripping request
Hinder information, facilitates debugging and fault diagnosis；CO communication board is used to communicate with host computer, some quantity of states and tripping solicited message
On send to host computer interface, also remote-controlled setting parameter, subject bridge arm quantity selection can be in interface online modification；1#FT3 plate:
TX1-RX1: with pole control A communication, modulated signal that receiving pole control A is issued and on send valve control information；TX2-RX2: with AU bridge arm A valve
Control communication；TX3-RX3: it is communicated with BU bridge arm A valve control；TX4-RX4: it is communicated with CU bridge arm A valve control；TX5-RX5: with AD bridge arm A
Valve control communication；TX6-RX6: it is communicated with BD bridge arm A valve control；TX7-RX7: it is communicated with CD bridge arm A valve control；2#FT3 plate: TX1-RX1:
With pole control B communication, modulated signal that receiving pole control B is issued and on send valve control information；TX2-RX2: it is communicated with AU bridge arm B valve control；
TX3-RX3: it is communicated with BU bridge arm B valve control；TX4-RX4: it is communicated with CU bridge arm B valve control；TX5-RX5: logical with AD bridge arm B valve control
News；TX6-RX6: it is communicated with BD bridge arm B valve control；TX7-RX7: it is communicated with CD bridge arm B valve control；MC master control borad is for forwarding modulation letter
Number, processing valve control report tripping request etc.；1#PU plate is used to receive the current value of each bridge arm；2#PU plate is for sending main quilt
Signal gives the A valve control of each bridge arm；3#PU plate is for sending the main B valve control by signal to each bridge arm；Interchanger is interface letter
Industrial personal computer and transfer box itself fault message are sent to after breath and wave-record chart interaction and the tripping of valve control institute cut-in valve control is asked
Seek information.Industrial personal computer is interface display, and recording is shown, parameter downloading etc..
Specifically, increasing a communication interface dress on the back-to-back flexible DC transmission model machine 10 of both-end that Fig. 1 is put up
Set 20 and N number of electrical connection arrangement 30.It is back-to-back in the both-end built when only detecting the converter valve of an equipment manufacturer
On flexible DC transmission model machine 10, subject converter valve replaces some bridge arm 11 of the model machine wherein one end, it is remaining other
Bridge arm 11 is to accompany examination bridge arm 11.In the converter valve of detection multiple equipment producer, or when the different converter valves of detection.What is built
On the back-to-back flexible DC transmission model machine 10 of both-end, multiple converter valves of subject replace the correspondence of model machine wherein one end respectively
Some bridge arm 11, e.g. six different converter valves then can be six bridge arms 11 of replacement rectification side 101, described
There are six 10, the back-to-back flexible DC transmission model machine of both-end when bridge arm 11, the back-to-back flexible DC transmission model machine 10 of both-end
One end once can be at most made of 6 different manufacturers converter valves, and opposite end VSC (soft straight) converter valve is to accompany examination end.Device is controlled in pole
13 increase a communication interface arrangement 20 from the communication of the included valve control device 41 of different converter valves centre.The communication interface arrangement
20 are responsible for the information of tested converter Control being distributed to corresponding included valve control device 41, by each included valve control device 41
Information collection summarize after transmit pole control device 13.
Brief description once control process:
It is described after the bridge arm 11 of the back-to-back flexible DC transmission model machine 10 of the both-end is substituted in tested converter valve 40
Acquisition device 12 acquires the information such as alternating voltage, alternating current, DC voltage, the DC current of the tested converter valve 40, and
It is sent after the information of acquisition is handled to system-level control device, i.e. pole control device 13 (controls pole control in abbreviation pole
And protection, PCP), it is handled by pole control device 13, exports modulating wave.Illustratively, control device 13 in pole will exchange
Voltage and current, can after the control theories algorithm such as the processing of lock (PLL) ring and dq transformation, Park Transformation is handled in Control card
The DC voltage or power instruction referred to, and then the modulating wave generated, pass to valve grade control device for the modulating wave,
It is transferred to the included valve control device 41 of the tested converter valve 40 and to be transferred to the remaining bridge arm 11 not being replaced corresponding
Valve control device 14.The included valve control device 41 and the valve control device 14 are corresponding every after the processing of the selection algorithms such as sequence
Each power module of a bridge arm 11 can generate corresponding control signal, and the valve control device 14 passes through optical fiber for the control
Signal passes to each power module of each bridge arm 11, and the included valve control device 41 passes to the tested converter valve 40
Each power module.The fluctuations such as the DC voltage and current that the power module generates in switching process can pass through acquisition device again
12 pass to pole control device 13, to form a closed loop detection.The capacitance voltage of the power module of the tested converter valve 40
Etc. information also can be by being sent to the included valve control device 41 on pooling together after collecting fiber, by the included valve control device
41 pass to pole control device 13, complete monitoring of the pole control device 13 to the tested converter valve 40.
It should be noted that passing through the above-mentioned back-to-back flexible DC transmission model machine 10 of both-end, communication interface arrangement 20, N
A electrical connection arrangement 30, tested converter valve 40 and the connection of included valve control device 41 can be achieved with unblocking to converter valve, stable state
The test such as test, DC Line Fault, brownout operation, above-mentioned device connection can guarantee to tested 40 detection data of converter valve
Acquisition, be able to achieve and the performance of converter valve tested comprehensively.
In embodiments of the present invention, mainly it is to provide a kind of flexible direct current transmission converter valve detection system, these can be passed through
Cooperating between device realizes the detection to different change of current valve performances.By in the back-to-back flexible DC transmission of the both-end
The test such as steady state test, DC Line Fault, brownout operation is carried out on model machine 10, the performance of converter valve can be tested, because of subject
Operating mode locating for the converter valve at end is consistent, through-current capability, loss (devices switch convenient for the different tested converter valves 40 of comparison
Frequency), long-play reliability, the dispersibility of device (including IGBT, capacitor etc.), module overvoltage capabilities etc..It can be direct
Compare and evaluate the performance of different converter valves.
Implement the present embodiment to have the following beneficial effects:
It can be real by the back-to-back flexible DC transmission model machine 10 of both-end, electrical connection arrangement 30 and communication interface arrangement 20
The access for not allowing the long family's converter valve of equipment now realizes the inspection on extra-high voltage flexible HVDC transmission system model machine to converter valve
It surveys, voluntarily builds valve section or small-sized physical model machine is detected relative to existing, the present embodiment can be more fully to converter valve
Performance detection and verifying, also saving a large number of experiments economic cost, human cost and time cost, implementation method is simple, operation
It is convenient.And pass through N number of electrical connection arrangement 30, so that it may which the converter valve for accessing N number of distinct device producer realizes direct comparison
Evaluate distinct device producer change of current valve performance.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (6)
1. a kind of flexible direct current transmission converter valve detection system, which is characterized in that including the back-to-back flexible DC transmission sample of both-end
Machine, communication interface arrangement and N number of electrical connection arrangement；
Every end of the back-to-back flexible DC transmission model machine of both-end is 6 bridge arms of three-phase, including device is controlled in acquisition device and pole；
Wherein, the number of N is equal to the number of tested converter valve, and N is greater than or equal to 1；
Described electrical connection arrangement one end connects the bridge arm interface of the back-to-back flexible DC transmission model machine of the both-end, described electrical
The other end of attachment device connects the tested converter valve；
Described communication interface arrangement one end connects the included valve control device of the tested converter valve, the communication interface arrangement it is another
One end connects the pole and controls device；
The acquisition device is separately connected the tested converter valve and pole control device, will collect the tested converter valve
Detection data is transferred to the pole control device；Wherein, the detection data include alternating voltage, alternating current, DC voltage and
DC current；
The pole control device connects the included valve control device of the tested converter valve, exports modulating wave according to the detection data,
And the modulating wave is transferred to the included valve control device, so that the included valve control device is exported according to the modulating wave
Signal is controlled to the corresponding tested converter valve.
2. flexible direct current transmission converter valve detection system as described in claim 1, which is characterized in that the both-end is soft back-to-back
Property direct current transportation model machine further include: valve control device；
The valve control device bridge arm and the communication interface arrangement with the back-to-back flexible DC transmission model machine of the both-end respectively
One end connection, it is and the control signal is defeated to control the modulating wave output control signal that device is sent according to the pole
Out to corresponding bridge arm.
3. flexible direct current transmission converter valve detection system as described in claim 1, which is characterized in that further include:
The tested converter valve connects the included valve control device by optical fiber, and the data of the tested converter valve are passed through institute
It states included valve control device and is transmitted to the pole control device；Wherein, the data include the capacitance voltage of the tested converter valve.
4. flexible direct current transmission converter valve detection system as described in claim 1, which is characterized in that the communication interface arrangement
Including M main channel and M redundant channel；Wherein, M is greater than or equal to 6；
Then described communication interface arrangement one end connects the included valve control device of the tested converter valve, the communication interface arrangement
One end connects the valve control device
The communication interface arrangement is connected with the included valve control device and the valve control device respectively by the M main channels
It connects；
The communication interface arrangement is connected with the included valve control device and the valve control device respectively by the M redundant channels
It connects.
5. flexible direct current transmission converter valve detection system as claimed in claim 4, which is characterized in that the communication interface arrangement
It further include a trunk channel and an alternate channel；
Then the other end connection of the communication interface arrangement pole control device includes:
The communication interface arrangement is controlled device with the pole by trunk channel and is connect, and the communication interface arrangement is logical
An alternate channel is crossed to connect with pole control device.
6. flexible direct current transmission converter valve detection system as described in claim 1, which is characterized in that the electrical connection arrangement
Including the insulator bracket and busbar for fixing the tested converter valve；
One end of the busbar connects described electrical connection arrangement one end, and the other end of the busbar connects the electrical connection dress
Set the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578392.XU CN209342822U (en) | 2018-09-26 | 2018-09-26 | A kind of flexible direct current transmission converter valve detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578392.XU CN209342822U (en) | 2018-09-26 | 2018-09-26 | A kind of flexible direct current transmission converter valve detection system |
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| CN209342822U true CN209342822U (en) | 2019-09-03 |
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| CN201821578392.XU Active CN209342822U (en) | 2018-09-26 | 2018-09-26 | A kind of flexible direct current transmission converter valve detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358241A (en) * | 2018-09-26 | 2019-02-19 | 南方电网科学研究院有限责任公司 | Flexible direct current transmission converter valve detection system and method |
| CN111541265A (en) * | 2020-06-11 | 2020-08-14 | 南方电网科学研究院有限责任公司 | Converter station debugging method adopting single-station bipolar back-to-back operation mode |
| CN112083861A (en) * | 2020-09-07 | 2020-12-15 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Flexible direct-current valve control information acquisition and judgment auxiliary tool and information acquisition and judgment method |
-
2018
- 2018-09-26 CN CN201821578392.XU patent/CN209342822U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358241A (en) * | 2018-09-26 | 2019-02-19 | 南方电网科学研究院有限责任公司 | Flexible direct current transmission converter valve detection system and method |
| CN111541265A (en) * | 2020-06-11 | 2020-08-14 | 南方电网科学研究院有限责任公司 | Converter station debugging method adopting single-station bipolar back-to-back operation mode |
| CN111541265B (en) * | 2020-06-11 | 2022-04-12 | 南方电网科学研究院有限责任公司 | Converter station debugging method adopting single-station bipolar back-to-back operation mode |
| CN112083861A (en) * | 2020-09-07 | 2020-12-15 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Flexible direct-current valve control information acquisition and judgment auxiliary tool and information acquisition and judgment method |
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