CN104616572A - Alternating current-direct current power grid operating characteristic display system and display method based on RTDS real-time digital simulation - Google Patents
Alternating current-direct current power grid operating characteristic display system and display method based on RTDS real-time digital simulation Download PDFInfo
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Abstract
The display system is provided with a simulation workstation for establishing an AC/DC power network model, a real-time digital simulator, a protocol conversion card, a switch and a power network characteristic display device; the real-time digital simulator outputs analog quantity and digital quantity to the power grid characteristic display device through the protocol conversion card and the switch, and the power grid characteristic display device returns an operation control command to the real-time digital simulator through the switch and the protocol conversion card. The power grid characteristic display device is provided with a transient database, a variable database, a search matching unit and a playback display unit. The invention can realize the visual display of the operation characteristics of the power grid such as steady-state data, transient-state data and the like, and has reliable performance, simplicity and practicability.
Description
Technical field
The present invention relates to alterating and direct current network technology field, particularly a kind of alterating and direct current network operation characterization system based on RTDS real-timedigital simulation and methods of exhibiting thereof.
Background technology
Along with the widespread use of the high-power electric and electronic technology such as high voltage direct current, series compensation, SVC, STATCOM, and the progressively popularization of the clean energy resource such as wind-power electricity generation, energy storage, the operation characteristic of electrical network becomes more complicated, the alternating current-direct current power grid accident that may occur also will be more various, and in net, the recovery of control characteristic to accident of large-sized unit, Large Copacity high voltage direct current and FACTS device is most important.
Iarge-scale system safety and stability outstanding problem is also more and more higher to the requirement of dispatcher, operation and maintenance personnel specialty quality and operating experience.Traditional static security analysis method, dynamic power flow algorithm, electromechanical transient simulation, dispatcher training system DTS can not reflect the fast-changing electromagnetic transient of large power power electronic appliance; lack the true reflection that control protective unit affects the stabilization of power grids, can not meet safety assessment and the training exercise needs of nowadays complex electric network.
In the face of current complex electric network; need to utilize up-to-date grid simulation technology; set up alternating current-direct current complex large power grid model; accurate simulation is carried out to the interaction of alternating current-direct current electrical network, large power power electronic appliance and the response characteristic of new forms of energy equipment, the acting characteristic etc. of Control protection; and by bulk power grid characteristic actual display out, for scientific research personnel and management and running personnel provide comparatively accurate study and training exercise platform.
But, this system can carrying out simulation shows to alternating current-direct current complex electric network operation characteristic is not had in prior art, therefore, not enough for prior art, provide a kind of alterating and direct current network operation characterization system based on RTDS real-timedigital simulation and methods of exhibiting very necessary to overcome prior art deficiency.
Summary of the invention
It is a kind of convenient, flexible to the object of the present invention is to provide, and accurately can reflect the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation of alterating and direct current network operation characteristic.
Of the present inventionly above-mentionedly to be realized by following technological means at present:
Alterating and direct current network operation characterization system based on RTDS real-timedigital simulation is provided, is provided with simulation work station, Real Time Digital Simulator, protocol transform card, switch and the electrical network characterization device of setting up alterating and direct current pessimistic concurrency control;
Described simulation work station is connected with described Real Time Digital Simulator by Ethernet, described Real Time Digital Simulator and described protocol transform card are bi-directionally connected, described protocol transform card and described switch are bi-directionally connected, and described switch and described electrical network characterization device are bi-directionally connected;
Described Real Time Digital Simulator is by protocol transform card, export analog quantity and digital quantity through switch to described electrical network characterization device, and described electrical network characterization device is through switch, return operation control command by protocol transform card to described Real Time Digital Simulator.
onstating Real Time Digital Simulator is RTDS Real Time Digital Simulator.
onstate the communication card that protocol transform card is DNP communication protocol, carry out data cube computation for Real Time Digital Simulator and external device (ED).
onstating electrical network characterization device is EMS energy management system.
Above-mentioned electrical network characterization device is provided with resolution unit, map unit and steady state data storehouse, the data of described switch conveying are resolved through resolution unit, carry out being stored in steady state data storehouse after data-mapping process through map unit again, electrical network characterization device is shown according to the steady state data of the data in steady state data storehouse by Real Time Digital Simulator.
The above-mentioned alterating and direct current network operation characterization system based on RTDS real-timedigital simulation, is also provided with Temporal Data processing unit, and described Temporal Data processing unit is bi-directionally connected with described Real Time Digital Simulator and described electrical network characterization device respectively;
Described Temporal Data processing unit is provided with Temporal Data extraction unit and converting unit, and described electrical network characterization device is provided with Temporal Data storehouse, variable data storehouse, searches matching unit and playback display unit.
The input end of described Temporal Data extraction unit is connected with described Real Time Digital Simulator, the output terminal of described Temporal Data extraction unit is connected with the input end of described converting unit, the output terminal of described converting unit is connected with the input end in described Temporal Data storehouse, matching unit is searched and described playback display unit is bi-directionally connected with described respectively in described Temporal Data storehouse, described in search matching unit and described variable data storehouse is bi-directionally connected;
Described Temporal Data extraction unit extracts the Temporal Data of described Real Time Digital Simulator, and extracted Temporal Data is inputed to described converting unit, and the data after converting unit conversion input and are stored in described Temporal Data storehouse;
Described search matching unit search in variable data storehouse and Temporal Data storehouse to dependent variable, the identical key value in Temporal Data storehouse is assigned to by variable data storehouse, realize associating of variable data storehouse and Temporal Data storehouse, in Temporal Data storehouse, need the variable shown to carry out playback and displaying by playback display unit.
Another object of the present invention is to provide a kind of simply and easily based on the methods of exhibiting of the alterating and direct current network operation characteristic of the alterating and direct current network operation characterization system of RTDS.
Of the present inventionly above-mentionedly to be realized by following technological means at present:
There is provided a kind of methods of exhibiting adopting the above-mentioned alterating and direct current network operation characterization system based on RTDS real-timedigital simulation, the displaying of Power System Steady-state data, comprises the steps:
(1) according to the primary system parameter of alternating current-direct current electrical network, in Real Time Digital Simulator, select basic model, the primary system ginseng that input is corresponding also builds alternating current-direct current electrical network primary system digital simulation model according to actual electric network topological structure;
(2) on Real Time Digital Simulator, arrange DNP agreement output channel, the corresponding protocol transform card of each passage, each passage configures the analog quantity that will show and digital quantity point table;
(3) parameter of protocol transform card and switch is set, makes Real Time Digital Simulator and the two-way communication of electrical network characterization device;
(4) on electrical network characterization device, DNP passage is configured, receive the data from described Real Time Digital Simulator of described switch conveying, and return operational order through protocol transform card to described Real Time Digital Simulator by switch by DNP passage, the displaying of the steady state data realizing Real Time Digital Simulator on electrical network characterization device and interaction.
On based on the methods of exhibiting of the alterating and direct current network operation characterization system of RTDS real-timedigital simulation, the displaying of electrical network Temporal Data comprises the steps:
(1) digital simulation model of Real Time Digital Simulator is run;
(2) Temporal Data extraction unit extracts the Temporal Data that will show, and extracted Temporal Data is inputed to converting unit;
(3), after described converting unit carries out data conversion, the data after conversion are inputted and are stored in the Temporal Data thesaurus of electrical network characterization device;
(4) search matching unit by search in variable data storehouse and Temporal Data storehouse to dependent variable, realize associating of variable data storehouse and Temporal Data storehouse;
(5) variable shown is needed to carry out playback and displaying by playback display unit in Temporal Data storehouse.
The Temporal Data that will the show record ripple that above-mentioned Temporal Data extraction unit extracts is comtrade form, and the data of comtrade form are converted to dat form by described converting unit, identify to enable electrical network characterization device.
Above-mentioned search matching unit search in variable data storehouse and Temporal Data storehouse to dependent variable, be assigned to the identical key value in Temporal Data storehouse by variable data storehouse, realize associating of variable data storehouse and Temporal Data storehouse.
The alterating and direct current network operation characterization system of base RTDS real-timedigital simulation of the present invention and methods of exhibiting thereof, adopt Real Time Digital Simulator Reality simulation electrical network, realize Real Time Digital Simulator by protocol transform card to be connected with the bi-directional data of electrical network characterization device, the displaying directly perceived of electric operation characteristic can be realized.Flexible design of the present invention, dependable performance, simple and practical, accurately can show the operation characteristic of alternating current-direct current electrical network.
Accompanying drawing explanation
Fig. 1 is the structural representation of the alternating current-direct current electrical network characterization system that the present invention is based on RTDS;
Fig. 2 is interface diagram of the present invention;
Fig. 3 is that electrical network Temporal Data of the present invention shows step schematic diagram.
In Fig. 1 to Fig. 3, comprising:
The simulation work station 1 of alterating and direct current pessimistic concurrency control, Real Time Digital Simulator 2,
Protocol transform card 3, switch 4,
Electrical network characterization device 5, steady state data storehouse 51,
Temporal Data storehouse 52, variable data storehouse 53,
Temporal Data processing unit 6, Temporal Data extraction unit 61, converting unit 62.
Embodiment
The present invention will be further described in conjunction with specific embodiments.
A kind of alterating and direct current network operation characterization system based on RTDS real-timedigital simulation, as shown in Figure 1, simulation work station 1, Real Time Digital Simulator 2, protocol transform card 3, switch 4 and the electrical network characterization device 5 of setting up alterating and direct current pessimistic concurrency control is provided with.
Simulation work station 1 is connected with Real Time Digital Simulator 2 by Ethernet, and Real Time Digital Simulator 2 and protocol transform card 3 are bi-directionally connected, and protocol transform card 3 and switch 4 are bi-directionally connected, and switch 4 and electrical network characterization device 5 are bi-directionally connected.
Real Time Digital Simulator 2 is by protocol transform card 3, export analog quantity and digital quantity through switch 4 to electrical network characterization device 5, and electrical network characterization device 5 is through switch 4, return operation control command by protocol transform card 3 to Real Time Digital Simulator 2.
Concrete, Real Time Digital Simulator 2 is RTDS Real Time Digital Simulator 2.Protocol transform card 3 is the communication card of DNP communication protocol, carries out data cube computation for Real Time Digital Simulator 2 and external device (ED).Electrical network characterization device 5 is EMS energy management system.
Electrical network characterization device 5 is provided with resolution unit, map unit and steady state data storehouse 51, the data that switch 4 is carried are resolved through resolution unit, carry out being stored in steady state data storehouse 51 after data-mapping process through map unit again, the steady state data of Real Time Digital Simulator 2 is shown according to the data in steady state data storehouse 51 by electrical network characterization device 5.
Based on the alterating and direct current network operation characterization system of RTDS real-timedigital simulation, should can carry out the displaying of Power System Steady-state data and the displaying of electrical network Temporal Data.
The displaying step of Power System Steady-state data is as follows:
(1) according to the primary system parameter such as actual track, bus, load, power equipment of alternating current-direct current electrical network, in Real Time Digital Simulator 2, select basic model, the primary system ginseng that input is corresponding also builds alternating current-direct current electrical network primary system digital simulation model according to actual electric network topological structure;
(2) on Real Time Digital Simulator 2, arrange DNP agreement output channel, the corresponding protocol transform card 3 of each passage, each passage configures the analog quantity that will show and digital quantity point table;
(3) parameter of protocol transform card 3 and switch 4 is set, makes Real Time Digital Simulator 2 and the two-way communication of electrical network characterization device 5;
(4) on electrical network characterization device 5, DNP passage is configured, the data from described Real Time Digital Simulator 2 that desampler 4 is carried, and return operational order through protocol transform card 3 to described Real Time Digital Simulator 2 by switch 4 by DNP passage, the displaying of the steady state data realizing Real Time Digital Simulator 2 on electrical network characterization device 5 and interaction.
Fig. 2 is a kind of interface embodiment schematic diagram of the present invention, the AC line voltage that primary system digital simulation model computing in Real Time Digital Simulator 2 obtains, power, DC converter valve group electric current, AC line voltage, power, the analog quantity real-time data base directly exporting electrical network characterization device 5 to through switch 4 by protocol transform card 3 gathers; DC line circuit breaker position, alternating current circuit position signalling that primary system digital simulation model computing in Real Time Digital Simulator 2 obtains, the digital quantity real-time data base directly exporting electrical network characterization device 5 to through switch 4 by protocol transform card 3 gathers; The guidance command of electrical network characterization device 5, is back to Real Time Digital Simulator 2 through switch 4 by protocol transform card 3; The remote regulating order of electrical network characterization device 5, is back to Real Time Digital Simulator 2 through switch 4 by protocol transform card 3.
Should based on the alterating and direct current network operation characterization system of RTDS real-timedigital simulation, be also provided with Temporal Data processing unit 6, Temporal Data processing unit 6 is bi-directionally connected with Real Time Digital Simulator 2 and electrical network characterization device 5 respectively.
Temporal Data processing unit 6 is provided with Temporal Data extraction unit 61 and converting unit 62, and electrical network characterization device 5 is provided with Temporal Data storehouse 52, variable data storehouse 53, searches matching unit and playback display unit.
The input end of Temporal Data extraction unit 61 is connected with Real Time Digital Simulator 2, the output terminal of Temporal Data extraction unit 61 is connected with the input end of converting unit 62, the output terminal of converting unit 62 is connected with the input end in Temporal Data storehouse 52, Temporal Data storehouse 52 respectively with search matching unit and playback display unit is bi-directionally connected, search matching unit and variable data storehouse 53 is bi-directionally connected.
Temporal Data extraction unit 61 extracts the Temporal Data of Real Time Digital Simulator 2, and extracted Temporal Data is inputed to converting unit 62, and the data after converting unit 62 is changed input and are stored in Temporal Data storehouse 52.
Search matching unit search in variable data storehouse and Temporal Data storehouse 52 to dependent variable, the identical key value in Temporal Data storehouse 52 is assigned to by variable data storehouse 53, namely word value is mapped, realize associating of variable data storehouse 53 and Temporal Data storehouse 52, in Temporal Data storehouse 52, need the variable shown to carry out playback and displaying by playback display unit.
Based on the alterating and direct current network operation characterization system of RTDS real-timedigital simulation, should can carry out the displaying of Power System Steady-state data and the displaying of electrical network Temporal Data.
As shown in Figure 3, the displaying of electrical network Temporal Data comprises the steps:
(1) digital simulation model of Real Time Digital Simulator 2 is run;
(2) Temporal Data extraction unit 61 extracts the Temporal Data that will show, and extracted Temporal Data is inputed to converting unit 62; Concrete, the Temporal Data that will the show record ripple that Temporal Data extraction unit 61 extracts is comtrade form;
(3), after converting unit 62 carries out data conversion, the data after conversion are inputted and are stored in the Temporal Data thesaurus of electrical network characterization device 5; Concrete, the data of comtrade form are converted to dat form by converting unit 62, can identify to make electrical network characterization device 5;
(4) search matching unit by search variable data storehouse 53 with in Temporal Data storehouse 52 to dependent variable, be assigned to the identical key value in Temporal Data storehouse 52 by variable data storehouse 53, realize associating of variable data storehouse 53 and Temporal Data storehouse 52;
(5) variable shown is needed to carry out playback and displaying by playback display unit in Temporal Data storehouse 52.By arrange the order of playback be according to record ripple time sequencing playback, playback p.s. point, add the startup of replayed section, time-out, acceleration and retrogressing control, the speed of controlling curve playback effectively, the transient state playback of record ripple on electrical network characterization device 5 and displaying can be realized, simultaneously under transient state picture editing state by data correlation to variable data storehouse 53 pairs of dependent variables, the displaying of Temporal Data in transient state display frame of variable can be realized.
Power System Steady-state database 51 associates with variable data storehouse 53, is to be undertaken mating, mapping by the same map word key value of automatically searching in steady state data storehouse 51 and variable data storehouse 53; Similar, electrical network Temporal Data storehouse 52 associates with variable data storehouse 53, is to be undertaken mating, mapping by the same map word key automatically searched in Temporal Data storehouse 52 and variable data storehouse 53.
The alterating and direct current network operation characterization system of base RTDS real-timedigital simulation of the present invention and methods of exhibiting thereof, adopt Real Time Digital Simulator 2 Reality simulation electrical network, realize Real Time Digital Simulator 2 by protocol transform card 3 to be connected with the bi-directional data of electrical network characterization device 5, the displaying directly perceived that electricity runs the characteristic such as steady state data and Temporal Data can be realized.Flexible design of the present invention, dependable performance, simple and practical, accurately can show the operation characteristic of alternating current-direct current electrical network.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1., based on an alterating and direct current network operation characterization system for RTDS real-timedigital simulation, it is characterized in that:
Be provided with simulation work station, Real Time Digital Simulator, protocol transform card, switch and the electrical network characterization device of setting up alterating and direct current pessimistic concurrency control;
Described simulation work station is connected with described Real Time Digital Simulator by Ethernet, described Real Time Digital Simulator and described protocol transform card are bi-directionally connected, described protocol transform card and described switch are bi-directionally connected, and described switch and described electrical network characterization device are bi-directionally connected;
Described Real Time Digital Simulator is by protocol transform card, export analog quantity and digital quantity through switch to described electrical network characterization device, and described electrical network characterization device is through switch, return operation control command by protocol transform card to described Real Time Digital Simulator.
2. the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 1, is characterized in that: described Real Time Digital Simulator is RTDS Real Time Digital Simulator.
3. the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 1 and 2, it is characterized in that: described protocol transform card is the communication card of DNP communication protocol, carry out data cube computation for Real Time Digital Simulator and external device (ED).
4. the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 3, is characterized in that: described electrical network characterization device is EMS energy management system.
5. the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 4, it is characterized in that: described electrical network characterization device is provided with resolution unit, map unit and steady state data storehouse, the data of described switch conveying are resolved through resolution unit, carry out being stored in steady state data storehouse after data-mapping process through map unit again, electrical network characterization device is shown according to the steady state data of the data in steady state data storehouse by Real Time Digital Simulator.
6. the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 5, is characterized in that:
Also be provided with Temporal Data processing unit, described Temporal Data processing unit is bi-directionally connected with described Real Time Digital Simulator and described electrical network characterization device respectively;
Described Temporal Data processing unit is provided with Temporal Data extraction unit and converting unit, and described electrical network characterization device is provided with Temporal Data storehouse, variable data storehouse, searches matching unit and playback display unit;
The input end of described Temporal Data extraction unit is connected with described Real Time Digital Simulator, the output terminal of described Temporal Data extraction unit is connected with the input end of described converting unit, the output terminal of described converting unit is connected with the input end in described Temporal Data storehouse, matching unit is searched and described playback display unit is bi-directionally connected with described respectively in described Temporal Data storehouse, described in search matching unit and described variable data storehouse is bi-directionally connected;
Described Temporal Data extraction unit extracts the Temporal Data of described Real Time Digital Simulator, and extracted Temporal Data is inputed to described converting unit, and the data after converting unit conversion input and are stored in described Temporal Data storehouse;
Described search matching unit search in variable data storehouse and Temporal Data storehouse to dependent variable, the identical key value in Temporal Data storehouse is assigned to by variable data storehouse, realize associating of variable data storehouse and Temporal Data storehouse, in Temporal Data storehouse, need the variable shown to carry out playback and displaying by playback display unit.
7. adopt the methods of exhibiting of the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation as described in claim 1 to 6 any one, it is characterized in that:
The displaying of Power System Steady-state data, comprises the steps:
(1) according to the primary system parameter of alternating current-direct current electrical network, in Real Time Digital Simulator, select basic model, the primary system ginseng that input is corresponding also builds alternating current-direct current electrical network primary system digital simulation model according to actual electric network topological structure;
(2) on Real Time Digital Simulator, arrange DNP agreement output channel, the corresponding protocol transform card of each passage, each passage configures the analog quantity that will show and digital quantity point table;
(3) parameter of protocol transform card and switch is set, makes Real Time Digital Simulator and the two-way communication of electrical network characterization device;
(4) on electrical network characterization device, DNP passage is configured, receive the data from described Real Time Digital Simulator of described switch conveying, and return operational order through protocol transform card to described Real Time Digital Simulator by switch by DNP passage, the displaying of the steady state data realizing Real Time Digital Simulator on electrical network characterization device and interaction.
8. the methods of exhibiting of the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 7, is characterized in that:
The displaying of electrical network Temporal Data comprises the steps:
(1) digital simulation model of Real Time Digital Simulator is run;
(2) Temporal Data extraction unit extracts the Temporal Data that will show, and extracted Temporal Data is inputed to converting unit;
(3), after described converting unit carries out data conversion, the data after conversion are inputted and are stored in the Temporal Data thesaurus of electrical network characterization device;
(4) search matching unit by search in variable data storehouse and Temporal Data storehouse to dependent variable, realize associating of variable data storehouse and Temporal Data storehouse;
(5) variable shown is needed to carry out playback and displaying by playback display unit in Temporal Data storehouse.
9. the methods of exhibiting of the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 8, is characterized in that:
The Temporal Data that will the show record ripple that Temporal Data extraction unit extracts is comtrade form, and the data of comtrade form are converted to dat form by described converting unit, identify to enable electrical network characterization device.
10. the methods of exhibiting of the alterating and direct current network operation characterization system based on RTDS real-timedigital simulation according to claim 8, it is characterized in that: described in search matching unit search in variable data storehouse and Temporal Data storehouse to dependent variable, be assigned to the identical key value in Temporal Data storehouse by variable data storehouse, realize associating of variable data storehouse and Temporal Data storehouse.
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| CN105761590A (en) * | 2016-04-26 | 2016-07-13 | 中国南方电网有限责任公司电网技术研究中心 | Power grid simulation training system and method |
| CN105761570A (en) * | 2016-04-26 | 2016-07-13 | 中国南方电网有限责任公司电网技术研究中心 | Displaying and training apparatus and method for overall dynamic process of alternating current-direct current grid characteristic |
| CN106057008A (en) * | 2016-06-28 | 2016-10-26 | 南京南瑞继保电气有限公司 | Dispatcher training simulation system based on real-time simulator and construction method |
| CN107092198A (en) * | 2016-02-17 | 2017-08-25 | 中国南方电网有限责任公司电网技术研究中心 | Fault analysis method and system for high-voltage direct-current transmission system |
| CN111679155A (en) * | 2020-06-17 | 2020-09-18 | 北京信息科技大学 | Digital analog simulation device and method for distribution line |
| CN111786396A (en) * | 2020-07-10 | 2020-10-16 | 国网湖南省电力有限公司 | High-voltage direct-current power transmission system commutation failure suppression method based on energy storage type chain STATCOM |
| CN112260331A (en) * | 2020-12-21 | 2021-01-22 | 中国电力科学研究院有限公司 | Extra-high voltage alternating current-direct current power grid simulation platform and construction method |
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