CN106054668B - A kind of modularization based on RT-Lab changeable half adjustment method in kind - Google Patents
A kind of modularization based on RT-Lab changeable half adjustment method in kind Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
A kind of modularization based on RT-Lab changeable half adjustment method in kind, debugging system includes connected D.C. high voltage transmission primary system emulation module, VGC module, VCM module and valve body；VGC module includes digital VGC module and the VGC module in kind that is attached thereto by the first switch logic module, and VCM module includes digital VCM module and the VCM module in kind that is attached thereto by the second switch logic module；VGC module in kind and material object VCM module are connected by Aurora interface with primary system emulation module.Adjustment method includes VGC switching and VCM switching, through measurand compared with the total word model built in RT-Lab carries out external characteristics, complete the functional test of VCM or VGC, a plurality of types of switchings are carried out to VGC, VCM module, by the switching under different situations, the problems in closed-loop system root is rapidly found out.
Description
Technical field
The invention belongs to modular multilevel type voltage source converters to emulate field, and in particular to a kind of based on RT-Lab's
The adjustment method in kind of modularization changeable half is used to carry out VGC, VCM simultaneously half debugging in kind.
Background technique
Technology of transmission of electricity based on voltage source converter is a kind of novel HVDC Transmission Technology, compared to Traditional DC transmission of electricity tool
There are many benefits.Due to multi-level voltage source current converter showed in terms of environmental protection and energy saving it is superior, by more and more
Concern.RT-Lab be design and research MMC-HVDC one of real-time simulation platform, wherein the modularized design of OP5600 and
The application of SSN algorithm, so that larger system is able to carry out pyrene depression of order to quickly run, to valve body and valve control in OP7020
It is emulated, ensure that the signal between OP5600 and OP7020 transmits by hardware synchronization and software synchronization.
At present during the domestic artificial debugging for carrying out MMC-HVDC using RT-Lab, full digital trigger technique submodule number is not
More than 800, half valve control debugging submodule number in kind is no more than 512, therefore the method for the present invention is dedicated to solving bridge arm submodule
The debugging problem of flexible DC transmission multi-terminal system of the block number mesh no more than 512.When carrying out HWIL simulation using RT-Lab
Primary system mainly is simulated with RT-Lab, control is protected into part as tested object.
For the artificial debugging process of flexible DC transmission control and protection system, by cascade multi-path choice module to multiple
VGC and multiple VCM carry out selection switching.When carrying out joint debugging using OP5600 and OP7020, two end systems as shown in figure 1 are needed
Joint debugging is carried out to 1#VCM, 1#VGC, 2#VCM, 2#VGC.It is difficult to lock the problems in closed-loop system root, therefore was testing
The design that butted part is emulated in journey becomes very crucial.
There are exception or interface sections inside 1#VCM when something goes wrong, and the trigger pulse generated in respective modules will
Appearance is not turned on or misleads, and influences the normal operation of primary system, and not only 1#VGC is in abnormal condition at this time, entire to be
System can all break down.2#VCM, 2#VGC, 1#VGC some or certain are several to make whole system operation not when something goes wrong
Normally, it and then influences each other.Communication cycle between measurand is difficult to determine sequencing in time in microsecond rank.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, providing a kind of modularization based on RT-Lab can
The adjustment method in kind of switching half, by the way that equivalent simulation controller is arranged, without converting simulation model, by cutting under different situations
It changes, to rapidly find out the problems in closed-loop system root, structure is simple, and precision is high, and debugging is convenient, should be readily appreciated that and realizes.
To achieve the above object, the present invention is based on the technologies that the debugging system in kind of the modularization of RT-Lab changeable half uses
Scheme is：Including connected D.C. high voltage transmission primary system emulation module, VGC module, VCM module and valve body；VGC module
Including digital VGC module and the VGC module in kind being attached thereto by the first switch logic module, VCM module includes number
VCM module and the VCM module in kind being attached thereto by the second switch logic module；The VGC module in kind and material object
VCM module passes through Aurora interface simultaneously and connects with primary system emulation module.
The digital VGC module includes parallel arrangement of first number VGC module and the second number VGC module, and first
Digital VGC module and the second number VGC module pass through algorithms of different the Realization of Simulation.
Primary system emulation module, number VGC module and the first switch logic module passes through OP5600 replicating machine
It realizes.
The Aurora interface, number VCM module, the second switch logic module, valve body are realized by OP7020 replicating machine.
The VGC module is connect with VCM module by PCIe bus.
The present invention is based on the technical solutions that the adjustment method in kind of the modularization of RT-Lab changeable half uses, including following step
Suddenly：
A, VGC switches；
A1) design RT-Lab docks model with material object VGC module is tested；
A2 it) builds and the digital VGC module of material object VGC module equivalent simulation；
A3 multi-path choice processing) is carried out to VGC module in kind and number VGC module by the first switch logic module,
Selection signal is transmitted in VCM module；
B, VCM switches；
B1) on VGC switching infrastructure, the docking model of tested material object VCM module is designed；
B2 it) builds and the digital VCM module of material object VCM module equivalent simulation；
B3 multi-path choice processing) is carried out to VCM module in kind and number VCM module by the second switch logic module,
VGC module in kind and material object VCM module pass through Aurora interface simultaneously and connect with HVDC transmission system, digital VCM module
After selection, shielded by the useful signal of the Aurora interface pulse train non-selected to VCM module in kind, selection signal
It is transmitted to valve body.
The step B3) in the second switch logic module multichannel choosing is carried out to VCM module in kind and number VCM module
When selecting processing：A. it for VCM module in kind and number VCM module, is selected according to trigger command corresponding relationship using identical logic
Instruction is selected, the changing rule of logic has same time series；B. it is cut in the interface SC_Console of RT-Lab setting second
Change the trigger pulse sequence of logic module.
The input signal of material object VGC module and number VGC module is taken from primary system emulation mould in the step A
Block, and perunit value is converted by the output modulation wave signal of VGC module in kind and number VGC module.
It is identical that the VGC switching and VCM switch the external characteristics that equivalent decision condition is switching front and back output reference wave.
The step A2) build with the digital VGC module of material object VGC module equivalent simulation needed for the formula that meets be：
In formula, id, iqRespectively d, q axis component of AC system current on valve side；Usd, UsqRespectively AC system net surveys electricity
D, q axis component of pressure；Ucd、UcqRespectively d, q axis component of AC system voltage on valve side；
The step B2) it builds and is forced with the nearest level met needed for the digital VCM module of material object VCM module equivalent simulation
Nearly formula is：N (t)=[Uref/Ucref]；In formula, N (t) is the submodule number that bridge arm needs to put into；UrefFor bridge arm voltage ginseng
Examine value；UcrefFor submodule capacitor voltage reference value；[] indicates the value that rounds up.
Compared with prior art, the present invention is based on the debugging systems in kind of the modularization of RT-Lab changeable half by setting parallel
The digital VGC module and number VCM module with material object VGC module and material object VCM module equivalent are set, switch logic mould is passed through
Block realizes that electronic objects units and digital module select work.The present invention does not need transformation simulation model can be to containing multiple VGC
The system of module and multiple VCM modules carries out half debugging in kind simultaneously, total by building in measurand and RT-Lab
Word model carries out external characteristics comparison, can complete to carry out functional test to VCM or VGC.Debugging system of the present invention can incite somebody to action
System containing N number of controller in kind switches to no less than 2NThe system of seed type, the system core part are cascade multichannel
Selecting unit, debugging system structure of the present invention is simple, should be readily appreciated that and realizes, easy to operate.
Compared with prior art, the present invention is based on the adjustment method in kind of the modularization of RT-Lab changeable half by build with
The digital VGC module of VGC module equivalent simulation in kind and digital VCM module with VCM module equivalent simulation in kind, by same
Step switching, compares the total word model external characteristics built in measurand and RT-Lab, can be to VCM module or VGC module
Carry out functional test.When the trigger pulse that MMC valve body receives VCM needs to switch, not only to select to receive VCM on RT-Lab
Pulse train source, will also to VCM start pulse signal in kind using useful signal shield, avoid interfering.The method of the present invention
All switch logics can be selected at the interface SC_Console of RT-Lab, according to the concrete condition in debugging process into
Row selection switching.For the control and protection system of both ends flexible DC transmission, it is assumed that each VGC module or each VCM module are only built
A digital simulation module is found, is that emulation or property in kind are able to carry out 16 types according to both ends VGC module and VCM module
The switching of type rapidly finds out the problems in closed-loop system root by the switching under different situations.
Detailed description of the invention
The basic control structure schematic diagram of Fig. 1 routine both ends flexible HVDC transmission system；
Fig. 2 present invention material object VGC, VCM module and mathematical model debug logic chart；
The waveform diagram of Fig. 3 material object VGC module and emulation VGC module handoff procedure output reference wave.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Flexible DC transmission both ends or the total word model of multiterminal are established in RT-Lab, by what is run in OP5600 replicating machine
Primary system component gives the digital VGC module and material object VGC module 4 of emulation simultaneously, and the operation result of VGC module 4 in kind is logical
It crosses OP7020 replicating machine and is sent back to OP5600 replicating machine, so that different types of VGC module arithmetic result can be sent by PCIe
VCM module is given, and the second switch logic module 8 is set in VCM module by signal receiving end, as shown in Figure 2.MMC valve body receives
When the trigger pulse of VCM module needs to switch, not only the arteries and veins of reception VCM module is selected at the interface SC_Console of RT-Lab
Rush sequence source, will also the start pulse signal to VCM module 6 in kind shielded using useful signal.
Switch two parts explanation below with reference to VGC switching and VCM.This method does not need transformation simulation model can be to containing
There is the system of multiple VGC modules and multiple VCM modules while carrying out half debugging in kind.By will be taken in measurand and RT-Lab
The total word model built carries out external characteristics comparison, can carry out functional test to VCM module or VGC module.
1.VGC switching
1) design RT-Lab docks model with material object VGC module 4 is tested；
2) the total word model of VGC module 4 in kind is built in OP5600；
3) input signal of material object VGC module 4 and number VGC module is taken from primary system, and by VGC module in kind
4 and the output modulation wave signal of number VGC module be converted into perunit value；
4) multi-path choice processing is carried out by 3 pairs of material object VGC modules 4 of the first switch logic module and number VGC module,
Final signal is transferred in OP7020 by PCIe；Output result shown in Fig. 3 only considers to switch the reference under both front and back state
Wave waveform guarantees that the external characteristics of switching both front and back VGC module is identical.
2.VCM switching
1) on VGC switching infrastructure, the docking model of tested material object VCM module 6 is built；
2) the total word model of tested material object VCM module 6 is built in OP7020；
3) it is carried out at multi-path choice by 8 pairs of material object VCM modules 6 of the second switch logic module and number VCM module 7
Reason：A. for different VCM modules, identical sel selection instruction is used according to the trigger command corresponding relationship of each submodule,
The changing rule of sel has same time series；B. trigger pulse sequence is configured according to pulse multiplex selector, and
This setting can be designed in the progress of the interface SC_Console of RT-Lab；
4) after to submodule trigger pulse sequence selection, by the rx_valid signal of Aurora interface to receive signal into
Row shielding.
From different types of submodule trigger pulse, identical time Series Processing is first passed around, is equivalent to parallel
Then pulse train is handled by multi-path choice module, trigger command is finally sent to valve body.
Since VCM module 6 in kind is connected using Aurora interface 5 with OP7020 replicating machine, digital VCM module 7 is directly
It is run in OP7020 replicating machine, when whole system is in stable operation, no matter using material object VCM module 6 or number VCM
Module 7, trigger pulse sequence has pulse, and the selection logic in OP7020 replicating machine is based only on the time sequence of FPGA
The selection of column, there may be Signal averagings in practical debugging process, it is therefore desirable to signal shielded, i.e., it is in kind in selection
When VCM module 6, the pulse train of shielding number VCM module 7 is reset by pulse；When selecting number VCM module 7, pass through
The pulse train in rx_valid signal shielding material object VCM module in Aurora interface 5.
All switch logics of the method for the present invention can be selected at the interface SC_Console of RT-Lab, according to tune
Concrete condition during examination carries out selection switching.For the control and protection system of both ends flexible DC transmission, it is assumed that each VGC module
Or each VCM module only establishes an emulation module, is the property of emulation or material object according to both ends VGC module and VCM module
Matter is able to carry out the switching of 16 seed types, by the switching under different situations, rapidly finds out the problems in closed-loop system root.
Claims (5)
1. a kind of adjustment method in kind of modularization based on RT-Lab changeable half, which is characterized in that include the following steps：
A, VGC switches；
A1) design RT-Lab docks model with material object VGC module (4) is tested；
A2 it) builds and the digital VGC module of material object VGC module (4) equivalent simulation；
A3) VGC module (4) in kind and number VGC module are carried out at multi-path choice by the first switch logic module (3)
Reason, selection signal are transmitted in VCM module (6) in kind or number VCM module (7)；
B, VCM switches；
B1) on VGC switching infrastructure, the docking model of tested material object VCM module (6) is designed；
B2 it) builds and the digital VCM module (7) of material object VCM module (6) equivalent simulation；
B3 multi-path choice) is carried out to VCM module (6) in kind and number VCM module (7) by the second switch logic module (8)
Processing, VGC module (4) in kind and material object VCM module (6) pass through Aurora interface (5) and HVDC transmission system phase simultaneously
It connects, after digital VCM module (7) selection, passes through the pulse non-selected to VCM module (6) in kind of the useful signal of Aurora interface
Sequence is shielded, and selection signal is transmitted to valve body (9).
2. the adjustment method in kind of the modularization according to claim 1 based on RT-Lab changeable half, which is characterized in that institute
The step B3 stated) in the second switch logic module (8) multichannel choosing is carried out to VCM module (6) in kind and number VCM module (7)
When selecting processing：A. for VCM module (6) in kind and number VCM module (7), according to trigger command corresponding relationship using identical
The changing rule of logic selection instruction, logic has same time series；B. it is arranged at the interface SC_Console of RT-Lab
The trigger pulse sequence of second switch logic module (8).
3. the adjustment method in kind of the modularization according to claim 1 based on RT-Lab changeable half, it is characterised in that：Institute
The input signal of material object VGC module (4) and number VGC module is taken from primary system emulation module in the step A stated, and will
The output modulation wave signal of VGC module (4) in kind and number VGC module is converted into perunit value.
4. the adjustment method in kind of the modularization according to claim 1 based on RT-Lab changeable half, it is characterised in that：Institute
It is identical that the VGC switching stated and VCM switch the external characteristics that equivalent decision condition is switching front and back output reference wave.
5. the adjustment method in kind of the modularization according to claim 1 based on RT-Lab changeable half, which is characterized in that
The step A2) build with the digital VGC module of material object VGC module (4) equivalent simulation needed for the formula that meets be：
In formula, id, iqRespectively d, q axis component of AC system current on valve side；Usd, UsqRespectively AC system net surveys voltage
D, q axis component；Ucd、UcqRespectively d, q axis component of AC system voltage on valve side；
The step B2) it builds and the required nearest level met of the digital VCM module (7) of material object VCM module (6) equivalent simulation
Regression formulas is：N (t)=[Uref/Ucref]；In formula, N (t) is the submodule number that bridge arm needs to put into；UrefFor bridge arm voltage
Reference value；UcrefFor submodule capacitor voltage reference value；[] indicates the value that rounds up.
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| CN106527408A (en) * | 2016-12-26 | 2017-03-22 | 中国西电电气股份有限公司 | Power electronic controller test system based on RT-LAB real-time digital simulation platform |
| CN114488998B (en) * | 2021-12-29 | 2023-12-19 | 中车永济电机有限公司 | Automatic test method for fault protection logic of traction inverter control unit |
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