CN105391099A - Fault synthesis card generation method and system based on PSD-BPA simulation result - Google Patents
Fault synthesis card generation method and system based on PSD-BPA simulation result Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
Abstract
The invention relates to a fault synthesis card generation method and a system based on the PSD-BPA simulation result. The method comprises the following steps: simulating calculation is carried out on grid faults through PSD-BPA to obtain a variety of PSD-BPA simulation results, wherein the PSD-BPA simulation results correspond to the grid faults; commutation failure judgment is made according to each PSD-BPA simulation result; and when there is phase voltage satisfying commutation failure in the PSD-BPA simulation results, corresponding direct-current power modification cards are generated, and fault cards corresponding to the grid faults and the direct-current power modification cards are correspondingly synthesized to generate fault synthesis cards corresponding to the grid faults. By using the fault synthesis card generation method and the system based on the PSD-BPA simulation result, no manual commutation failure judgment is needed for simulation of a lot of grid faults, the workload is reduced greatly, different grid faults can be processed in batch, fault synthesis cards can be generated in batch for system analysis personnel to use, the workload of system analysis personnel is reduced greatly, and the work efficiency is improved.
Description
Technical field
The present invention relates to power domain, particularly a kind of fault Synthesis Card based on PSD-BPA simulation result generates method and system.
Background technology
Along with the continuous construction of DC transmission engineering, the extensive multi-feed HVDC system of China is progressively formed, and its Typical Representative is East China Power Grid and south electric network.For the south electric network of alternating current-direct current series-parallel connection, for multi-feed HVDC system, when AC system breaks down, cause multiple-circuit line commutation failure simultaneously, the power of direct current conveying will significantly reduce, thus trend is all transferred to the communication channel of transferring electricity from the west to the east, if the direct-current commutation failure duration is long, bring great risk by the stable operation of electrical network.To this, which direct current generation commutation failure Water demand AC fault will cause, and Water demand in the case AC fault last long and will cause electrical network unstability, thus provide guidance for the actual motion of electrical network.
When stability analysis is carried out to bulk power grid, general employing electromechanical transient simulation software emulates, system stability analysis is being carried out to large-scale alternating current-direct current electrical network, need the emulation carrying out a large amount of fault, the differentiation manually carrying out direct-current commutation failure by existing, when forming synthesis fault, owing to needing the emulation of a large amount of fault, thus need to carry out a large amount of manual direct-current commutation failure and differentiate, workload is huge, and efficiency is low.
Summary of the invention
Based on this, be necessary to cause more greatly inefficient problem for workload, provide a kind of fault Synthesis Card based on PSD-BPA simulation result that can raise the efficiency to generate method and system.
A kind of fault Synthesis Card generation method based on PSD-BPA simulation result, comprises the following steps:
Read the flow data file in PSD-BPA, obtain DC engineering in electrical network, wherein, described DC engineering comprises inverter side change of current bus and the DC line corresponding with described inverter side change of current bus;
Utilize PSD-BPA to carry out electric power networks fault simulation calculating to described DC engineering, obtain the PSD-BPA simulation result corresponding with described electric network fault;
Read each described PSD-BPA simulation result, obtain the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault, and obtain the fault card corresponding with described electric network fault;
Resolve described fault card, obtain time of failure and fault end time;
When having the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of described inverter side change of current bus, according to described time of failure and described fault end time, generate the direct current power corresponding with described electric network fault to revise and block, wherein, described direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage;
Described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault.
The present invention also provides a kind of fault Synthesis Card generation system based on PSD-BPA simulation result, comprising:
First acquisition module, for reading the flow data file in PSD-BPA, obtain DC engineering in electrical network, wherein, described DC engineering comprises inverter side change of current bus and the DC line corresponding with described inverter side change of current bus;
Second acquisition module, for utilizing PSD-BPA to carry out electric power networks fault simulation calculating to described DC engineering, obtains the described PSD-BPA simulation result corresponding with described electric network fault;
Read module, for reading each described PSD-BPA simulation result, obtains the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault, and obtains the fault card corresponding with described electric network fault;
Parsing module, for resolving described fault card, obtains time of failure and fault end time;
Generation module, for when there being the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of described inverter side change of current bus, according to described time of failure and described fault end time, generate the direct current power corresponding with described electric network fault to revise and block, wherein, described direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage;
Synthesis module, blocking corresponding synthesis for being revised with described direct current power by described fault card corresponding for described electric network fault, generating the fault Synthesis Card corresponding with described electric network fault.
The above-mentioned fault Synthesis Card based on PSD-BPA simulation result generates method and system, by PSD-BPA, simulation calculation is carried out to multiple electric network fault, obtain the multiple PSD-BPA simulation result corresponding respectively with multiple electric network fault, according to each PSD-BPA simulation result, carry out phase conversion failure judgment, when there being the phase voltage meeting commutation failure in each PSD-BPA simulation result, generate corresponding direct current power amendment card, described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault, when carrying out a large amount of electric power networks fault simulation, method and system are generated by the above-mentioned fault Synthesis Card based on PSD-BPA simulation result, without the need to manually carrying out phase conversion failure judgment, and can realize carrying out batch process to different electric network fault, Mass production fault Synthesis Card, utilize for systems analyst, greatly reduce the workload of systems analyst, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of the fault Synthesis Card generation method based on PSD-BPA simulation result of execution mode;
Fig. 2 is the sub-process figure of the fault Synthesis Card generation method based on PSD-BPA simulation result of another kind of execution mode;
Fig. 3 is the sub-process figure of the fault Synthesis Card generation method based on PSD-BPA simulation result of another kind of execution mode;
The sub-process figure of the fault Synthesis Card generation method based on PSD-BPA simulation result of the another kind of execution mode of Fig. 4;
Fig. 5 is the flow chart of the fault Synthesis Card generation method based on PSD-BPA simulation result of another kind of execution mode;
Fig. 6 is that figure enumerated by fault card;
Fig. 7 is that fault Synthesis Card enumerates figure;
Fig. 8 is a kind of module map of the fault Synthesis Card generation system based on PSD-BPA simulation result of execution mode;
Fig. 9 is the submodule figure of the fault Synthesis Card generation system based on PSD-BPA simulation result of another kind of execution mode;
Figure 10 is the submodule figure of the fault Synthesis Card generation system based on PSD-BPA simulation result of another kind of execution mode;
Figure 11 is the submodule figure of the fault Synthesis Card generation system based on PSD-BPA simulation result of another kind of execution mode;
Figure 12 is the module map of the fault Synthesis Card generation system based on PSD-BPA simulation result of another kind of execution mode.
Embodiment
Refer to Fig. 1, a kind of fault Synthesis Card generation method based on PSD-BPA simulation result of execution mode is provided, comprises the steps:
S100: read the flow data file in PSD-BPA, obtains DC engineering in electrical network.
When stability analysis is carried out to bulk power grid, general employing electromechanical transient simulation software emulates, wherein, the electromechanical transient simulation software kit PSD-BPA developed by China Electric Power Research Institute can realize emulation, this software kit has the functions such as Load flow calculation, simulation calculation, short circuit calculation and small interference stability calculating, has a wide range of applications in the planning of the power scheduling travelling mechanism of China, electric power system, the relevant unit such as design and test and each colleges and universities.By PSD-BPA can analyze electric power system be subject in the steady state various interference time system dynamic behaviour.
Wherein, DC engineering comprises inverter side change of current bus and the DC line corresponding with inverter side change of current bus, and the corresponding same inverter side change of current bus of multiple DC line, these DC line belong to same DC engineering.The file of flow data file to be suffix be dat, store with the form of data card, flow data file comprises system parameters, line parameter circuit value, ground connection branch parameters, transformer parameter, operational factor and PV node parameter etc., for DC engineering each in electrical network, namely for each DC engineering, DC bus BD card in PSD-BPA, is included, converter transformer T card and R card, change of current bus B card, DC line LD card.General direct current is made up of positive and negative polarities, to there being two LD cards, and rectification side and each two the double winding converter transformers of inverter side and two DC buss, rectification side and each change of current bus of inverter side.
By reading flow data file, resolve the data card comprised in flow data file.First, search DC line LD card, determine inverter side DC bus, then, travel through all two winding transformers, if transformer side is inverter side DC bus, then opposite side is inverter side change of current bus, finally, adds up the inverter side change of current bus that all LD cards are corresponding, corresponding to the DC line of same inverter side change of current bus, belong to same DC engineering.
S200: utilize PSD-BPA to carry out electric power networks fault simulation calculating to DC engineering, obtains the PSD-BPA simulation result corresponding with described electric network fault.
When utilizing PSD-BPA to carry out electric power networks fault simulation calculating to DC engineering, electric network fault has multiple, carry out the emulation of an electric network fault, correspondence can obtain a kind of PSD-BPA simulation result, when carrying out multiple electric power networks fault simulation and calculating, correspondence obtains multiple PSD-BPA simulation result, and PSD-BPA simulation result and electric network fault are corresponding.Wherein, electric network fault comprises the faults such as single-phase earthing fault, line to line fault earth fault, two-phase short-circuit fault and three phase short circuit fault.
S300: read each PSD-BPA simulation result, obtains the three-phase voltage of the inverter side change of current bus corresponding with electric network fault, and obtains the fault card corresponding with electric network fault.
Often carry out an electric power networks fault simulation, the PSD-BPA simulation result obtained may be different, thus in often kind of PSD-BPA simulation result, contain the three-phase voltage of the inverter side change of current bus corresponding with electric network fault and the fault card corresponding with electric network fault, due in PSD-BPA, data all store with the form of data card, thus the fault message that emulation obtains stores with card form, namely the fault message of appearance when carrying out electric power networks fault simulation is included in fault card, such as, there is fault in certain DC line, the relevant parameter information of this DC line stores with the form of data card, thus obtain fault card, also many DC line are likely had to break down, the form of the relevant information of the DC line that every bar breaks down data card all stores, thus the fault card in PSD-BPA simulation result comprises the relevant parameter information of the DC line respectively broken down.
S400: resolve fault card, obtains time of failure and fault end time.
During owing to carrying out fault simulation, many the DC line broken down may be had, every bar DC line has corresponding fault time when breaking down, wherein, have fault time successively, thus, by resolve fault card, all fault times in known fault card, time of failure and fault end time can be obtained.
S500: when having the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of inverter side change of current bus, according to time of failure and fault end time, generates the direct current power amendment card corresponding with electric network fault.
Wherein, direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage.At least one phase voltage whether is had lower than the predeterminated voltage of correspondence by the three-phase voltage that judges inverter side change of current bus, if have, then represent direct-current commutation failure, now, according to time of failure and fault end time, generate the direct current power amendment card corresponding with electric network fault.The information such as AC line name section and the direct current power on this direct current line segment is included in direct current power amendment card.
S600: described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault.
The corresponding a kind of electric network fault of a kind of fault Synthesis Card, when complete to multiple electric power networks fault simulation, obtain the various faults Synthesis Card that multiple electric network fault is corresponding, realizes the batch process of multiple electric network fault.
The above-mentioned fault Synthesis Card generation method based on PSD-BPA simulation result, by PSD-BPA, simulation calculation is carried out to multiple electric network fault, obtain the multiple PSD-BPA simulation result corresponding respectively with multiple electric network fault, according to each PSD-BPA simulation result, carry out phase conversion failure judgment, when there being the phase voltage meeting commutation failure in each PSD-BPA simulation result, generate corresponding direct current power amendment card, described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault, when carrying out a large amount of electric power networks fault simulation, by the above-mentioned fault Synthesis Card generation method based on PSD-BPA simulation result, without the need to manually carrying out phase conversion failure judgment, and can realize carrying out batch process to different electric network fault, Mass production fault Synthesis Card, utilize for systems analyst, greatly reduce the workload of systems analyst, increase work efficiency.
Refer to Fig. 2, wherein in an embodiment, PSD-BPA simulation result comprises curve file and stability Calculation destination file;
Reads each PSD-BPA simulation result, obtain the three-phase voltage of the inverter side change of current bus corresponding with electric network fault, and the step S300 obtaining the fault card corresponding with electric network fault comprises:
S310: read the curve file in each PSD-BPA simulation result, obtains the three-phase voltage of the inverter side change of current bus corresponding with electric network fault.
S320: read the stability Calculation destination file in each PSD-BPA simulation result, obtains the fault card corresponding with electric network fault.
The file of to be suffix the be cur of the curve file in PSD-BPA simulation result, for the file of binary format, by reading this file, the all result curve generated when can obtain emulation, because file is only indicated curve by a line character string, need the identification being carried out curve type by the word content in character string, such as, the first eight character representation bus title in " BA-HLZ525.0 bus A phase voltage (pu) ", after bus title, four characters are the reference voltage of this bus, remaining character indicates bus A phase voltage, voltage unit is pu, obtain inverter side bus title and reference voltage in the step s 100, thus in curve file, search corresponding A, B and C three-phase voltage curve.
Information such as calculating initial information, computational process information and part monitors curve is listed in stability Calculation destination file in PSD-BPA simulation result, wherein, listing the fault card that fault comprises in initial information, by reading stability Calculation destination file, fault card information can be obtained.
Refer to Fig. 3, wherein in an embodiment, resolve fault card, acquisition time of failure and the step S400 of fault end time comprise:
S410: the moment occurs the fault obtaining fault in fault card, and fault is occurred the time of failure of the minimum value in the moment as fault.
S420: the fault end time of the maximum in the moment as fault, fault was occurred.
Cross reading stability Calculation destination file, fault card information can be obtained, thus can know that the moment occurs the fault of fault in fault card, fault be there is the time of failure of the minimum value in the moment as fault, the fault end time of the maximum in the moment as fault, fault was occurred.
Refer to Fig. 4, wherein in an embodiment, when having the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of inverter side change of current bus, according to time of failure and fault end time, the step S500 generating the direct current power amendment card corresponding with electric network fault comprises:
S510: in the time of failure moment, is reduced to predetermined power value by the direct current power of the DC engineering corresponding with the phase voltage meeting commutation failure condition, generates direct current power amendment card.
S520: in moment fault end time, returns to direct current power normal value by the direct current power of DC engineering corresponding with the phase voltage meeting commutation failure condition in direct current power amendment card from predetermined power value.
Wherein, direct current power normal value is the direct current power value of DC engineering DC line when normally running.
For the phase voltage of inverter side change of current bus commutation failure, think that the direct current power that DC side is corresponding in failure process is down to lower value, after failure vanishes, direct current power recovers normal, can analog DC commutation failure by the change of direct current power in failure process.
In the time of failure moment, the direct current power of the DC engineering corresponding with the phase voltage meeting commutation failure condition is reduced to predetermined power value, generate direct current power amendment card, in PSD-BPA, all data are all store with the form of card, include the information such as AC line name section and the direct current power on this direct current line segment in direct current power amendment card, at the end of fault, recover direct current power to direct current power normal value.
Refer to Fig. 5, wherein in an embodiment, described fault card corresponding for described electric network fault revised with described direct current power and blocks corresponding synthesis, also comprise after generating the step S600 of the fault Synthesis Card corresponding with described electric network fault:
S700: by described fault Synthesis Card write text corresponding for electric network fault different in described electrical network.
S800: according to text, carries out stability analysis to electrical network.
On the basis of cause barrier card, increase direct current power amendment card, namely by direct current power change modeling direct-current commutation failure, increase direct-current commutation failure fault, form fault Synthesis Card, to synthesis fault by critical clearing time computing function, determine that AC fault lasts long and will cause electrical network unstability, thus the analysis realized grid stability, by by described fault Synthesis Card write text corresponding for electric network fault different in described electrical network, realize the electrical network analysis under different electric network fault.
With a specific embodiment, the above-mentioned fault Synthesis Card generation method based on PSD-BPA simulation result is illustrated below.
When utilizing PSD-BPA to carry out fault simulation, flow data file inputs with card form, and data must in strict accordance with the form typing of regulation, otherwise PSD-BPA software None-identified.Wherein, the corresponding BD card of DC bus parameter, the corresponding T card of converter transformer parameter and R card, the corresponding B card of change of current bus parameter, the corresponding LD card of DC line parameter.General direct current is made up of positive and negative polarities, to there being two LD cards, and rectification side and each two the double winding converter transformers of inverter side and two DC buss, rectification side and each change of current bus of inverter side.The Simulation result data obtained after being emulated by PSD-BPA is also exported with sheet form, and such as, the fault message that simulation result comprises exports with the form of LS fault card, by reading LS fault card, obtains fault message.
First, by reading the flow data file in PSD-BPA, flow data file comprises various data card, search DC line LD card, obtain DC line and the inverter side change of current bus of DC engineering in electrical network, travel through all two winding transformers, if transformer side is inverter side DC bus, then opposite side is inverter side change of current bus.If the corresponding same inverter side change of current bus of multiple DC line, then think that these DC line belong to same DC engineering.Meanwhile, the direct current power value in DC line LD card is read, using this performance number as direct current power normal value.
Then, PSD-BPA is utilized to carry out multiple electric power networks fault simulation calculating to DC engineering, obtain multiple PSD-BPA simulation result, read each PSD-BPA simulation result, obtain the three-phase voltage of the inverter side change of current bus corresponding with electric network fault, and obtain the fault card corresponding with electric network fault, resolve fault card, obtain time of failure and fault end time.
Particularly, read curve file in PSD-BPA simulation result, namely read * .cur file, obtain the Simulation result data in this file, then therefrom search the result curve of the inverter side change of current bus A, B and C three-phase voltage, thus the three-phase voltage of inverter side change of current bus can be obtained.Read stability Calculation destination file in PSD-BPA simulation result, namely read * .out file, obtain the LS fault card of this fault simulation.Then each parameter of LS fault card is resolved, obtain each LS fault card fault occur the moment, get fault occur moment minimum value as time of failure TF_Start, fault occur moment maximum as fault end time TF_End.
As shown in Figure 6, be the exemplary graph of fault card in PSD-BPA simulation result, wherein, for FLT type fault card, translated into LS type fault card, represented with * LS.
Again, when having the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of inverter side change of current bus, according to time of failure and fault end time, generate the direct current power amendment card corresponding with electric network fault.
Travel through the DC engineering in electrical network one by one, according to the result curve of the inverter side change of current bus A, B, C three-phase voltage obtained, carry out direct-current commutation failure differentiation.Namely a phase voltage is had in A, B, C three-phase voltage lower than predeterminated voltage, then think this phase direct-current commutation failure, then the generation direct current power corresponding with this phase voltage is revised and is blocked, can be made up of multiple cards, the process that direct current power amendment snap gauge is intended is: in the TF_Start moment, direct current power is reduced to predetermined power value by normal power value, in the TF_End moment, direct current power is returned to direct current power normal value.After all DC engineering have traveled through, if all DC engineering all commutation failure do not occur, then perform the emulation of next fault, otherwise, by the cause barrier card obtained, and the direct current power amendment card generated, combine and form synthesis fault.
As shown in Figure 7, be the exemplary graph of fault Synthesis Card, in figure, a DC engineering i.e. corresponding current conversion station is to the DC engineering of another current conversion station, and the tripping of the C fringe water beetle region of rivers and lakes 5023 is jumped 3B and represented electric network fault.After emulating multiple electric network fault, correspondence obtains various faults Synthesis Card, thus realizes the batch process to various faults, and without the need to differentiating commutation failure manually, increases work efficiency.
Refer to Fig. 8, a kind of fault Synthesis Card generation system based on PSD-BPA simulation result of execution mode be provided, comprise:
First acquisition module 100, for reading the flow data file in PSD-BPA, obtains DC engineering in electrical network.
When stability analysis is carried out to bulk power grid, general employing electromechanical transient simulation software emulates, wherein, the electromechanical transient simulation software kit PSD-BPA developed by China Electric Power Research Institute can realize emulation, this software kit has the functions such as Load flow calculation, simulation calculation, short circuit calculation and small interference stability calculating, has a wide range of applications in the planning of the power scheduling travelling mechanism of China, electric power system, the relevant unit such as design and test and each colleges and universities.By PSD-BPA can analyze electric power system be subject in the steady state various interference time system dynamic behaviour.
Wherein, DC engineering comprises inverter side change of current bus and the DC line corresponding with inverter side change of current bus, and the corresponding same inverter side change of current bus of multiple DC line, these DC line belong to same DC engineering.The file of flow data file to be suffix be dat, store with the form of data card, flow data file comprises system parameters, line parameter circuit value, ground connection branch parameters, transformer parameter, operational factor and PV node parameter etc., for DC engineering each in electrical network, namely for each DC engineering, DC bus BD card in PSD-BPA, is included, converter transformer T card and R card, change of current bus B card, DC line LD card.General direct current is made up of positive and negative polarities, to there being two LD cards, and rectification side and each two the double winding converter transformers of inverter side and two DC buss, rectification side and each change of current bus of inverter side.
By reading flow data file, resolve the data card comprised in flow data file.First, search DC line LD card, determine inverter side DC bus, then, travel through all two winding transformers, if transformer side is inverter side DC bus, then opposite side is inverter side change of current bus, finally, adds up the inverter side change of current bus that all LD cards are corresponding, corresponding to the DC line of same inverter side change of current bus, belong to same DC engineering.
Second acquisition module 200, for utilizing PSD-BPA to carry out electric power networks fault simulation calculating to DC engineering, obtains the PSD-BPA simulation result corresponding with described electric network fault.
When utilizing PSD-BPA to carry out electric power networks fault simulation calculating to DC engineering, electric network fault has multiple, carry out the emulation of an electric network fault, correspondence can obtain a kind of PSD-BPA simulation result, when carrying out multiple electric power networks fault simulation and calculating, correspondence obtains multiple PSD-BPA simulation result, and PSD-BPA simulation result and electric network fault are corresponding.Wherein, electric network fault comprises the faults such as single-phase earthing fault, line to line fault earth fault, two-phase short-circuit fault and three phase short circuit fault.
Read module 300, for reading each PSD-BPA simulation result, obtains the three-phase voltage of the inverter side change of current bus corresponding with electric network fault, and obtains the fault card corresponding with electric network fault.
Often carry out an electric power networks fault simulation, the PSD-BPA simulation result obtained may be different, thus in often kind of PSD-BPA simulation result, contain the three-phase voltage of the inverter side change of current bus corresponding with electric network fault and the fault card corresponding with electric network fault, due in PSD-BPA, data all store with the form of data card, thus the fault message that emulation obtains stores with card form, namely the fault message of appearance when carrying out electric power networks fault simulation is included in fault card, such as, there is fault in certain DC line, the relevant parameter information of this DC line stores with the form of data card, thus obtain fault card, also many DC line are likely had to break down, the form of the relevant information of the DC line that every bar breaks down data card all stores, thus the fault card in PSD-BPA simulation result comprises the relevant parameter information of the DC line respectively broken down.
Parsing module 400, for resolve fault card, obtains time of failure and fault end time.
During owing to carrying out fault simulation, many the DC line broken down may be had, every bar DC line has corresponding fault time when breaking down, wherein, have fault time successively, thus, by resolve fault card, all fault times in known fault card, time of failure and fault end time can be obtained.
Generation module 500, for when there being the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of inverter side change of current bus, according to time of failure and fault end time, generates the direct current power amendment card corresponding with electric network fault.
Wherein, direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage.At least one phase voltage whether is had lower than the predeterminated voltage of correspondence by the three-phase voltage that judges inverter side change of current bus, if have, then represent direct-current commutation failure, now, according to time of failure and fault end time, generate the direct current power amendment card corresponding with electric network fault.The information such as AC line name section and the direct current power on this direct current line segment is included in direct current power amendment card.
Synthesis module 600, blocking corresponding synthesis for being revised with described direct current power by described fault card corresponding for described electric network fault, generating the fault Synthesis Card corresponding with described electric network fault.
The corresponding a kind of electric network fault of a kind of fault Synthesis Card, when complete to multiple electric power networks fault simulation, obtain the various faults Synthesis Card that multiple electric network fault is corresponding, realizes the batch process of multiple electric network fault.
The above-mentioned fault Synthesis Card generation system based on PSD-BPA simulation result, by PSD-BPA, simulation calculation is carried out to multiple electric network fault, obtain the multiple PSD-BPA simulation result corresponding respectively with multiple electric network fault, according to each PSD-BPA simulation result, carry out phase conversion failure judgment, when there being the phase voltage meeting commutation failure in each PSD-BPA simulation result, generate corresponding direct current power amendment card, described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault, when carrying out a large amount of electric power networks fault simulation, by the above-mentioned fault Synthesis Card generation system based on PSD-BPA simulation result, without the need to manually carrying out phase conversion failure judgment, and can realize carrying out batch process to different electric network fault, Mass production fault Synthesis Card, utilize for systems analyst, greatly reduce the workload of systems analyst, increase work efficiency.
Refer to Fig. 9, wherein in an embodiment, PSD-BPA simulation result comprises curve file and stability Calculation destination file.
Read module 300 comprises:
First reading unit 310, reads the curve file in each PSD-BPA simulation result, obtains the three-phase voltage of the inverter side change of current bus corresponding with electric network fault.
Second reading unit 320, reads the stability Calculation destination file in each PSD-BPA simulation result, obtains the fault card corresponding with electric network fault.
The file of to be suffix the be cur of the curve file in PSD-BPA simulation result, for the file of binary format, by reading this file, the all result curve generated when can obtain emulation, because file is only indicated curve by a line character string, need the identification being carried out curve type by the word content in character string, such as, the first eight character representation bus title in " BA-HLZ525.0 bus A phase voltage (pu) ", after bus title, four characters are the reference voltage of this bus, remaining character indicates bus A phase voltage, voltage unit is pu, obtain inverter side bus title and reference voltage in the step s 100, thus in curve file, search corresponding A, B and C three-phase voltage curve.
Information such as calculating initial information, computational process information and part monitors curve is listed in stability Calculation destination file in PSD-BPA simulation result, wherein, listing the fault card that fault comprises in initial information, by reading stability Calculation destination file, fault card information can be obtained.
Refer to Figure 10, wherein in an embodiment, parsing module 400 comprises:
, there is the moment for the fault obtaining fault in fault card, fault occurred the time of failure of the minimum value in the moment as fault in the first determining unit 410.
, for there is the fault end time of the maximum in the moment as fault using fault in the second determining unit 420.
By reading stability Calculation destination file, fault card information can be obtained, thus can know that the moment occurs the fault of fault in fault card, fault be there is the time of failure of the minimum value in the moment as fault, the fault end time of the maximum in the moment as fault, fault was occurred.
Refer to Figure 11, wherein in an embodiment, generation module 500 comprises:
First regulon 510, in the time of failure moment, is reduced to predetermined power value by the direct current power of the DC engineering corresponding with the phase voltage meeting commutation failure condition, generates direct current power amendment card.
Second regulon 520, in moment fault end time, returns to direct current power normal value by the direct current power of DC engineering corresponding with the phase voltage meeting commutation failure condition in direct current power amendment card from predetermined power value.
Wherein, direct current power normal value is the direct current power value of DC engineering DC line when normally running.
For the phase voltage of inverter side change of current bus commutation failure, think that the direct current power that DC side is corresponding in failure process is down to lower value, after failure vanishes, direct current power recovers normal, can analog DC commutation failure by the change of direct current power in failure process.
In the time of failure moment, the direct current power of the DC engineering corresponding with the phase voltage meeting commutation failure condition is reduced to predetermined power value, generate direct current power amendment card, in PSD-BPA, all data are all store with the form of card, include the information such as AC line name section and the direct current power on this direct current line segment in direct current power amendment card, at the end of fault, recover direct current power to direct current power normal value.
Refer to Figure 12, wherein in an embodiment, the above-mentioned fault Synthesis Card generation system based on PSD-BPA simulation result also comprises:
Writing module 700, for writing text by described fault Synthesis Card corresponding for electric network fault different in described electrical network.
Analysis module 800, for according to text, carries out stability analysis to electrical network.
On the basis of cause barrier card, increase direct current power amendment card, namely by direct current power change modeling direct-current commutation failure, increase direct-current commutation failure fault, form fault Synthesis Card, to synthesis fault by critical clearing time computing function, determine that AC fault lasts long and will cause electrical network unstability, thus the analysis realized grid stability, by by described fault Synthesis Card write text corresponding for electric network fault different in described electrical network, realize the electrical network analysis under different electric network fault.
Each technical characteristic of above embodiment can combine arbitrarily, for making description succinct, all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
Above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. one kind based on the fault Synthesis Card generation method of PSD-BPA simulation result, it is characterized in that, comprises the following steps:
Read the flow data file in PSD-BPA, obtain DC engineering in electrical network, wherein, described DC engineering comprises inverter side change of current bus and the DC line corresponding with described inverter side change of current bus;
Utilize PSD-BPA to carry out electric power networks fault simulation calculating to described DC engineering, obtain the PSD-BPA simulation result corresponding with described electric network fault;
Read each described PSD-BPA simulation result, obtain the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault, and obtain the fault card corresponding with described electric network fault;
Resolve described fault card, obtain time of failure and fault end time;
When having the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of described inverter side change of current bus, according to described time of failure and described fault end time, generate the direct current power corresponding with described electric network fault to revise and block, wherein, described direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage;
Described fault card corresponding for described electric network fault is revised with described direct current power and blocks corresponding synthesis, generate the fault Synthesis Card corresponding with described electric network fault.
2. the fault Synthesis Card generation method based on PSD-BPA simulation result according to claim 1, it is characterized in that, described PSD-BPA simulation result comprises curve file and stability Calculation destination file;
The each described PSD-BPA simulation result of described reading, obtains the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault, and the step obtaining the fault card corresponding with described electric network fault comprises:
Read the described curve file in each described PSD-BPA simulation result, obtain the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault;
Read the described stability Calculation destination file in each described PSD-BPA simulation result, obtain the fault card corresponding with described electric network fault.
3. the fault Synthesis Card generation method based on PSD-BPA simulation result according to claim 1, is characterized in that, the described fault card of described parsing, and acquisition time of failure and the step of fault end time comprise:
There is the moment in the fault obtaining fault in described fault card, described fault is occurred the time of failure of the minimum value in the moment as described fault;
Described fault be there is the fault end time of the maximum in the moment as described fault.
4. the fault Synthesis Card generation method based on PSD-BPA simulation result according to claim 1, it is characterized in that, described when having a phase voltage meeting direct-current commutation failure condition in each phase voltage of described inverter side change of current bus, according to described time of failure and described fault end time, generate the direct current power corresponding with described electric network fault and revise the step of blocking and comprise:
In the described time of failure moment, the direct current power of the described DC engineering corresponding with the phase voltage meeting commutation failure condition is reduced to predetermined power value, generates direct current power amendment card;
In described moment fault end time, the direct current power of described DC engineering corresponding with the phase voltage meeting commutation failure condition in direct current power amendment card is returned to direct current power normal value from described predetermined power value;
Wherein, described direct current power normal value is the direct current power value of described DC engineering described DC line when normally running.
5. the fault Synthesis Card generation method based on PSD-BPA simulation result according to claim 1, it is characterized in that, described amendment with described direct current power by described fault card corresponding for described electric network fault blocks corresponding synthesis, also comprises after generating the step of the fault Synthesis Card corresponding with described electric network fault:
By described fault Synthesis Card write text corresponding for electric network fault different in described electrical network;
According to described text, stability analysis is carried out to electrical network.
6., based on a fault Synthesis Card generation system for PSD-BPA simulation result, it is characterized in that, comprising:
First acquisition module, for reading the flow data file in PSD-BPA, obtain DC engineering in electrical network, wherein, described DC engineering comprises inverter side change of current bus and the DC line corresponding with described inverter side change of current bus;
Second acquisition module, for utilizing PSD-BPA to carry out electric power networks fault simulation calculating to described DC engineering, obtains the described PSD-BPA simulation result corresponding with described electric network fault;
Read module, for reading each described PSD-BPA simulation result, obtains the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault, and obtains the fault card corresponding with described electric network fault;
Parsing module, for resolving described fault card, obtains time of failure and fault end time;
Generation module, for when there being the phase voltage meeting direct-current commutation failure condition in the three-phase voltage of described inverter side change of current bus, according to described time of failure and described fault end time, generate the direct current power corresponding with described electric network fault to revise and block, wherein, described direct-current commutation failure condition comprises phase voltage lower than predeterminated voltage;
Synthesis module, blocking corresponding synthesis for being revised with described direct current power by described fault card corresponding for described electric network fault, generating the fault Synthesis Card corresponding with described electric network fault.
7. the fault Synthesis Card generation method based on PSD-BPA simulation result according to claim 6, it is characterized in that, described PSD-BPA simulation result comprises curve file and stability Calculation destination file;
Described read module comprises:
First reading unit, for reading the described curve file in each described PSD-BPA simulation result, obtains the three-phase voltage of the described inverter side change of current bus corresponding with described electric network fault;
Second reading unit, for reading the described stability Calculation destination file in each described PSD-BPA simulation result, obtains the fault card corresponding with described electric network fault.
8. the fault Synthesis Card generation system based on PSD-BPA simulation result according to claim 6, it is characterized in that, described parsing module comprises:
, there is the moment for the fault obtaining fault in described fault card in the first determining unit, described fault is occurred the time of failure of the minimum value in the moment as described fault;
, for there is the fault end time of the maximum in the moment as described fault using described fault in the second determining unit.
9. the fault Synthesis Card generation system based on PSD-BPA simulation result according to claim 6, it is characterized in that, described generation module comprises:
First regulon, in the described time of failure moment, is reduced to predetermined power value by the direct current power of the described DC engineering corresponding with the phase voltage meeting commutation failure condition, generates direct current power amendment card;
Second regulon, in described moment fault end time, returns to direct current power normal value by the direct current power of described DC engineering corresponding with the phase voltage meeting commutation failure condition in direct current power amendment card from described predetermined power value;
Wherein, described direct current power normal value is the direct current power value of described DC engineering described DC line when normally running.
10. the fault Synthesis Card generation system based on PSD-BPA simulation result according to claim 6, is characterized in that, also comprise:
Writing module, for writing text by described fault Synthesis Card corresponding for electric network fault different in described electrical network;
Analysis module, for according to described text, carries out stability analysis to electrical network.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470973A (en) * | 2018-11-30 | 2019-03-15 | 广西电网有限责任公司电力科学研究院 | A kind of failure card library method for building up based on PSD-BPA |
| CN111628486A (en) * | 2020-05-28 | 2020-09-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct current line voltage abrupt change quantity protection misoperation prevention strategy and system |
| CN112395773A (en) * | 2020-12-01 | 2021-02-23 | 福州大学 | Parallel simulation method for improving power grid voltage sag simulation efficiency |
| CN112787342A (en) * | 2019-11-08 | 2021-05-11 | 国网辽宁省电力有限公司 | Active power control method and system for battery energy storage power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120120306A1 (en) * | 2008-08-28 | 2012-05-17 | Cisco Technology, Inc. | Techniques for network-centric scheduled power provisioning |
| CN102968062A (en) * | 2012-11-22 | 2013-03-13 | 广东电网公司电力调度控制中心 | Method for implementing transient stability control batch computing based on PSD-BPA |
| CN204271641U (en) * | 2014-11-28 | 2015-04-15 | 大连理工大学 | A kind of Fault load flow parallel parsing system based on PSD-BPA |
| EP2930634A2 (en) * | 2014-04-11 | 2015-10-14 | General Electric Company | System and method for automated substation design and configuration |
-
2015
- 2015-11-17 CN CN201510796529.3A patent/CN105391099B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120120306A1 (en) * | 2008-08-28 | 2012-05-17 | Cisco Technology, Inc. | Techniques for network-centric scheduled power provisioning |
| CN102968062A (en) * | 2012-11-22 | 2013-03-13 | 广东电网公司电力调度控制中心 | Method for implementing transient stability control batch computing based on PSD-BPA |
| EP2930634A2 (en) * | 2014-04-11 | 2015-10-14 | General Electric Company | System and method for automated substation design and configuration |
| CN204271641U (en) * | 2014-11-28 | 2015-04-15 | 大连理工大学 | A kind of Fault load flow parallel parsing system based on PSD-BPA |
Non-Patent Citations (1)
| Title |
|---|
| 易杨等: "PSD-BPA潮流计算数据卡的自动批量生成和修改", 《电力系统自动化》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470973A (en) * | 2018-11-30 | 2019-03-15 | 广西电网有限责任公司电力科学研究院 | A kind of failure card library method for building up based on PSD-BPA |
| CN109470973B (en) * | 2018-11-30 | 2020-11-13 | 广西电网有限责任公司电力科学研究院 | Fault card library establishing method based on PSD-BPA |
| CN112787342A (en) * | 2019-11-08 | 2021-05-11 | 国网辽宁省电力有限公司 | Active power control method and system for battery energy storage power station |
| CN112787342B (en) * | 2019-11-08 | 2023-09-08 | 国网辽宁省电力有限公司 | Active power control method and system for battery energy storage power station |
| CN111628486A (en) * | 2020-05-28 | 2020-09-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Direct current line voltage abrupt change quantity protection misoperation prevention strategy and system |
| CN112395773A (en) * | 2020-12-01 | 2021-02-23 | 福州大学 | Parallel simulation method for improving power grid voltage sag simulation efficiency |
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Effective date of registration: 20221122 Address after: 510000 No. 75, Meihua Road, Yuexiu District, Guangzhou City, Guangdong Province (office building only) Patentee after: ELECTRICAL POWER DISPATCHING & CONTROL CENTER OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510699 No. 75 Meihua Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: ELECTRICAL POWER DISPATCHING & CONTROL CENTER OF GUANGDONG POWER GRID Co.,Ltd. Patentee before: NR ENGINEERING Co.,Ltd. |