CN106483841B - A kind of field adjustable and the method for testing loop current suppression policing parameter - Google Patents
A kind of field adjustable and the method for testing loop current suppression policing parameter Download PDFInfo
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- CN106483841B CN106483841B CN201510530373.4A CN201510530373A CN106483841B CN 106483841 B CN106483841 B CN 106483841B CN 201510530373 A CN201510530373 A CN 201510530373A CN 106483841 B CN106483841 B CN 106483841B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 26
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Abstract
The present invention relates to a kind of field adjustable and the method for testing loop current suppression policing parameter, this method is realized using valve base control equipment VBC, this method comprises: tuning parameter is arranged in the host computer man-machine interface in valve monitoring unit；Increase light transmission interface in valve monitoring unit, tuning parameter and fiber optic communication are sent to bridge arm current control unit；Increase receiving interface in bridge arm current control unit, poll scanning receives information status；Bridge arm current control unit increases parameters revision debugging routine, debugging condition and policing parameter is changed repeatedly according to information is received, until debugging optimizes；Comprehensive debugging result and parameter tuning remove debugging interface program and parameter modification program as a result, unified upgrading valve base Application of control device module, complete engineering application；Technical solution provided by the invention avoids the detailed debugging process that engineering site modifies software code repeatedly, and the debugging and parameter tuning of having evaded sophisticated strategies introduce the risk of hidden danger in the process.
Description
Technical field
The present invention relates to the power electronics flexible direct-current transmission fields of electric system, and in particular to a kind of field adjustable and survey
The method for trying loop current suppression policing parameter.
Background technique
Modular multilevel (MMC) technology is in high-voltage dc transmission electrical domain in application, converter valve needs are hundreds of or even thousands of
The series connection of submodule, each submodule must be controlled individually, as the interface equipment of Control protection system and converter valve, valve base
Control equipment VBC carries the operation control and safeguard protection important task of all submodules and entire bridge arm.
Since the MMC DC transmission system three-phase bridge arm of modular multilevel technology is equivalent to the direct current for the system of being connected in parallel on
Side.When steady-state operation, the voltage between each bridge arm can not be completely the same, therefore will necessarily generate circulation between three-phase bridge arm,
To make sinusoidal bridge arm current waveform be distorted, therefore, it is necessary to complete loop current suppression strategy in valve base control equipment VBC
Realization.
Loop current suppression strategy is all completed in an ideal case in the debugging situation that common simulation software carries out, and ring
The generation of stream is then largely the non-ideal conditions due to device, i.e., produced by inconsistency, therefore, parameter tuning and plan
Slightly debug the specific debugging for depending on engineering site situation to a greater extent.Each parameter to strategy is needed to make specific and careful
Adjustment adjusting, and this tuning process needs repeatedly test and debugging to carry out.
Current common policing algorithm debugging method is constantly to carry out parameter state adjusting according to emulation, thus to valve base control
The parameter modification programming of chip program is repeated in control equipment VBC, or programming repeatedly is run in emulator.Such side
Formula, does not meet field engineering software stability and reliability requirement, does not meet the security requirement of operation valve yet.
The debugging of flexible HVDC transmission system engineering site and test and policing parameter adjusting are that people is easily generated in engineering
It is especially even more serious to modify software code in engineering site for the engineering link of mistake and introducing product hidden danger.
The situ method for designing the engineering strategy parameter testing adjusting of a set of novelty, for flexible DC transmission engineering
System is reliably debugged and stable operation, is of crucial importance.
Summary of the invention
To solve above-mentioned deficiency of the prior art, the object of the present invention is to provide a kind of field adjustable and test circulation suppressions
The method of policing parameter processed can complete tune of the loop current suppression algorithm in engineering site implementation strategy of valve base control equipment VBC
The adjusting of examination and parameter.
The purpose of the present invention is adopt the following technical solutions realization:
A kind of method that the present invention provides field adjustable and tests loop current suppression policing parameter, it is improved in that institute
It states method to realize using valve base control equipment VBC, the valve base control equipment VBC includes connecting with valve monitoring unit by optical fiber
Bridge arm current control unit, bridge arm summarize control unit and bridge arm segment control unit, the valve monitoring unit with it is upper
Machine is connected by cable；The valve monitoring unit receives bridge arm current control unit, bridge arm summarizes control unit, bridge arm segmentation control
The information of the change of current, bridge arm and the defeated system self-condition of flexible direct current that each cabinet of unit processed issues；The bridge arm current
It includes controlling cabinet, core function control panel and leading to that control unit, bridge arm, which summarize control unit and bridge arm segment control unit,
Believe interface board；
The described method includes:
In the host computer man-machine interface of valve monitoring unit, tuning parameter is set；
Increase light in valve monitoring unit and send command interface, tuning parameter and fiber optic communication signal are sent to bridge arm current
Control unit；
Increase in bridge arm current control unit and receive command interface, poll scanning receives information status；
Bridge arm current control unit increases parameters revision debugging routine, changes debugging condition and plan repeatedly according to information is received
Slightly parameter, until debugging optimizes；
Comprehensive debugging result and parameter tuning remove debugging interface as a result, unified upgrading valve base Application of control device module
Module and parameter adapting module complete engineering application.
Further, debugging function is configured in bridge arm current control unit, connects its every control period by optical fiber interface
Valve monitoring cell data is received, does not receive such as, does not then deal with；It such as receives, then debugging is entered by the order received
State opens debugging control switch；Operating parameter is modified by different tuning parameter setting commands again, makes system at runtime
Change parameter in real time, sends corresponding state of a control and data, by different querying commands in order in valve monitoring unit
Upper progress recording and real-time display.
Further, configuration sends command interface on valve monitoring unit, can pass through the control command of host computer
Corresponding control command is sent to bridge arm current control unit, and receives with the state of valve base control equipment VBC the same, is carried out often
The data receiver in period, while memory is hewed out, to store the data received, when host computer calls recording waveform, will deposit
The data of storage are sent to host computer and show；
Host computer is configured, has host computer and draws each link block diagram and each link parameter configuration function and record
Wave energy has in the parameter configuration at each link of algorithm block diagram and fills in, sends and query function, can ensure data
It sends successfully and successfully modified, while recording is manually booted at any time, to observe waveform situation and to compare effect.
Further, according to current waveform, the Harmonic Conditions of circulation is assessed, harmonic wave is minimized, as debugged optimal
Change；
Further, the fiber optic communication is taken based on end-to-end Fibre Optical Communication Technology, according to data volume size and communication
Rate selection；
The end-to-end Fibre Optical Communication Technology refers to connect by the fiber optic applications layer between two different entities one
To a communication mode；
The end-to-end Fibre Optical Communication Technology meets IEC60044-8 standard, fiber medium, traffic rate using physical layer
For 10Mbit/s；Link layer meets the FT3 format of IEC60870-5-1；Sender is on the basis of low and high level, more than recipient
Rise the communication mode on the basis of failing edge.
The excellent effect that technical solution provided by the invention has is:
Field adjustable proposed by the present invention and the method for testing loop current suppression policing parameter, avoid engineering site and repair repeatedly
The detailed debugging process for changing software code, the debugging and parameter tuning of having evaded sophisticated strategies introduce the risk of hidden danger in the process,
Meanwhile the method and use system own resource, by valve base control equipment VBC itself valve monitoring unit, complete debugging, it is whole
A series of functions such as fixed and amendment, save system resource, meanwhile, after debugging, system code is disposably upgraded,
Remove debugging routine, keeps System Error-tolerance Property higher, performance is more preferable.
Detailed description of the invention
Fig. 1 is the composite structural diagram of valve base control equipment VBC provided by the invention；
Fig. 2 is the method realization figure of engineering site debugging provided by the invention and test loop current suppression policing algorithm；
Fig. 3 is the schematic diagram that communication provided by the invention uses.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to
Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment
Only represent possible variation.Unless explicitly requested, otherwise individual component and function are optional, and the sequence operated can be with
Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair
The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims
Object.Herein, these embodiments of the invention can individually or generally be indicated that this is only with term " invention "
For convenience, and if in fact disclosing the invention more than one, the range for being not meant to automatically limit the application is to appoint
What single invention or inventive concept.
The present invention provides a kind of valve base control equipment VBC, as shown in Figure 1, in Fig. 1, the valve base of flexible DC transmission technology
Control equipment VBC includes that the bridge arm current control unit being connect with valve monitoring unit by optical fiber, bridge arm summarize control unit, bridge
Arm segment control unit；The valve monitoring unit is connect with host computer by cable；Valve monitoring unit receives each control unit
Each cabinet issue valve, bridge arm and system self-condition information.
The present invention provides a kind of side for controlling above-mentioned valve base equipment VBC field adjustable and test loop current suppression policing parameter
Method, realization figure is as shown in Fig. 2, include the following steps:
In the host computer man-machine interface of valve monitoring unit, tuning parameter is set；
Increase light transmission interface in valve monitoring unit, tuning parameter and fiber optic communication signal are sent to bridge arm current control
Unit；
Increase receiving interface in bridge arm current control unit, poll scanning receives information status；The reception information is to adjust
Try parameter；
Bridge arm current control unit increases parameters revision debugging routine, and carries out tuning parameter software program internal variable assignment
Modification changes debugging condition and policing parameter according to information is received, until debugging optimizes repeatedly；
Comprehensive debugging result and parameter tuning remove debugging interface as a result, unified upgrading valve base Application of control device module
Program and parameter modification program complete engineering application.
Loop current suppression algorithm plays an important roll the stable operation of flexible HVDC transmission system, and algorithm itself has root
The work that different parameters adjusting is carried out according to varying environment is switched especially for PID controller regulation and control to each link
Be superimposed scavenging effect, adjusted and the relatively equal many-sided work of effect because being related to multi-controller, in debugging process and one kind gradually
Into the debud mode of the progressive parameter tuning of comparison of formula, therefore, if carrying out chip in-circuit emulation debugging to board at the scene
Words easily make flexible HVDC transmission system operation conditions be unable to control situations such as (divergence, oscillation, power swing), simultaneously
It also easily malfunctions to the modification repeatedly of program, occurs so as to cause the situation that system fault, operation conditions can not be grasped.
Using the valve monitoring VM unit of valve base controller VBC itself, parameter is directly arranged on host computer, by upper
Machine configures each link block diagram of the loop current suppression algorithm drawn and each link parameter setting, make debugging efforts it is simple,
Clearly, it flexibly, meanwhile, in conjunction with VM to the record of input parameter and the recording function and data recording function that itself have, carries out
Voltage waveform, current waveform and active power after each setting parameter, the debugging result of reactive power waveform, can be with referring to comparison
Convenient, fast, flexible completion parameter testing work.
Firstly, configuring debugging function in bridge arm current control unit, its every control period is made to receive VM by optical fiber interface
Data do not receive such as, then do not deal with, and such as receive, then enter debugging mode by the order received, open debugging
Control switch；System is set at runtime can come internal modification operating parameter by different tuning parameter setting commands again
Change parameter in real time, then send corresponding state of a control and data by different querying commands, in order to be carried out on VM
Recording and real-time display.
Meanwhile configuration sends command functions on valve monitoring VM, it can be by the order of host computer come electric to bridge arm
Flow control unit sends corresponding control command.And with the state of VBC receive, carry out the data receiver of each cycle, simultaneously
One piece of biggish memory is hewed out, to store the data received, in this way, can will deposit when host computer calls recording waveform
The data of storage are sent to host computer and show.
Finally, also to configure to host computer, host computer is made to have each link block diagram of rendering algorithm and each link parameter
Configuration feature and recording function.Have in the parameter configuration at each link of algorithm block diagram and fill in, send, query function, makes it
It is successfully and successfully modified can to ensure that data are sent, while recording can also be manually booted at any time, so as to observe waveform situation and
Compare effect.
In Fig. 3, fiber optic communication take based on end-to-end Fibre Optical Communication Technology, can be according to data volume in actual use
Size and traffic rate flexible choice.Protocol format is as shown in table 1 below.
1 protocol format table of table
The method of the debugging of flexible HVDC transmission system engineering site and test loop current suppression policing parameter in the present invention, can be with
The loop current suppression algorithm of valve base control equipment VBC is completed in the debugging of engineering site implementation strategy and the adjusting of parameter.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although referring to above-described embodiment pair
The present invention is described in detail, those of ordinary skill in the art still can to a specific embodiment of the invention into
Row modification perhaps equivalent replacement these without departing from any modification of spirit and scope of the invention or equivalent replacement, applying
Within pending claims of the invention.
Claims (2)
1. a kind of field adjustable and the method for testing loop current suppression policing parameter, which is characterized in that the method uses valve base control
Control equipment VBC realizes that the valve base control equipment VBC includes controlling list by the bridge arm current that optical fiber is connect with valve monitoring unit
Member, bridge arm summarize control unit and bridge arm segment control unit, and the valve monitoring unit is connect with host computer by cable；Institute
It states valve monitoring unit and receives each cabinet that bridge arm current control unit, bridge arm summarize control unit, bridge arm segment control unit
The change of current of sending, bridge arm and the defeated system self-condition of flexible direct current information；The bridge arm current control unit, bridge arm summarize
Control unit and bridge arm segment control unit include control cabinet, core function control panel and communication interface board；
The described method includes:
In the host computer man-machine interface of valve monitoring unit, tuning parameter is set；
Increase light in valve monitoring unit and send command interface, tuning parameter and fiber optic communication signal are sent to bridge arm current control
Unit；
Increase in bridge arm current control unit and receive command interface, poll scanning receives information status；
Bridge arm current control unit increases parameters revision debugging routine, and according to receiving, information changes debugging condition repeatedly and strategy is joined
Number, until debugging optimizes；
Comprehensive debugging result and parameter tuning remove debugging interface module as a result, unified upgrading valve base Application of control device module
And parameter adapting module, complete engineering application；
Debugging function is configured in bridge arm current control unit, its every control period is made to receive valve monitoring unit number by optical fiber interface
According to not receiving such as, then do not deal with；It such as receives, then debugging mode is entered by the order received, open debugging control
System switch；Operating parameter is modified by different tuning parameter setting commands again, system is made to change parameter in real time at runtime, is led to
Different querying commands is crossed to send corresponding state of a control and data, in order to the progress recording on valve monitoring unit and in real time
Display；
Configuration sends command interface on valve monitoring unit, can be controlled by the control command of host computer to bridge arm current
Unit sends corresponding control command, and receive with the state of valve base control equipment VBC it is the same, what the state reception equally referred to
It is to carry out the data receiver of each cycle, while hewing out memory, to store the data received, calls recording waveform in host computer
When, the data of storage are sent to host computer and are shown；
Host computer is configured, has host computer and draws each link block diagram and each link parameter configuration function and recording function
Can, have in the parameter configuration at each link of algorithm block diagram and fill in, send and query function, can ensure that data are sent
Success is simultaneously successfully modified, while manually booting recording at any time, to observe waveform situation and to compare effect；
According to current waveform, the Harmonic Conditions of circulation are assessed, harmonic wave is minimized, as debugging optimizes.
2. the method as described in claim 1, which is characterized in that the fiber optic communication is taken based on end-to-end fiber optic communication skill
Art is selected according to data volume size and traffic rate；
The end-to-end Fibre Optical Communication Technology refers to connecting by the fiber optic applications layer between two different entities one-to-one
Communication mode；
The end-to-end Fibre Optical Communication Technology meets IEC60044-8 standard, fiber medium using physical layer, and traffic rate is
10Mbit/s；Link layer meets the FT3 format of IEC60870-5-1；Sender is on the basis of low and high level, and recipient is to rise
Communication mode on the basis of failing edge.
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| CN108919100A (en) * | 2018-07-19 | 2018-11-30 | 珠海格力电器股份有限公司 | Debugging system and method for driving variable frequency compressor |
| CN110929381B (en) * | 2019-10-25 | 2023-06-23 | 舞阳钢铁有限责任公司 | Parameter optimization method for direct current speed regulating device |
| CN111781440A (en) * | 2020-06-01 | 2020-10-16 | 广州大学 | Open type microcomputer relay protection experiment system and method |
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