CN102760192B - Real-time digital simulator-based power system closed loop verifying platform and method - Google Patents
Real-time digital simulator-based power system closed loop verifying platform and method Download PDFInfo
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Abstract
The invention discloses a real-time digital simulator-based power system closed loop verifying platform and method. The real-time digital simulator-based power system closed loop verifying platform comprises a real-time digital simulator and an online safety and stability prewarning and auxiliary decision making system, wherein the online safety and stability prewarning and auxiliary decision making system comprises a data processing subsystem, a parallel calculation subsystem, a data storage subsystem, a human-computer interaction subsystem, an information publishing subsystem and an offline analyzing subsystem which are connected with a router. The online safety and stability prewarning and auxiliary decision making system also comprises an information control processor which is connected with the router, wherein the real-time digital simulator transmits data to the online safety and stability prewarning and auxiliary decision making system through the Ethernet for realizing mutual communication. According to the invention, through information interaction, effectiveness of a control strategy is visually and conveniently verified, and a research and development and testing verification mode of the online safety and stability prewarning and auxiliary decision making system is optimized. The real-time digital simulator-based power system closed loop verifying platform is reasonable in design and has strong practicability.
Description
Technical field
The present invention relates to field of power, be specifically related to a kind of electric system closed loop verification platform based on Real Time Digital Simulator and verification method.
Background technology
Safety on line stablizes that early warning and aid decision-making system are that a round Realization electrical power system wide-area is monitored, performance analysis, protection and controlling functions overall solution framework; the operation information transmitted from several data acquisition system in electric system (as based on the phasor measurement unit PMU of GPS, SCADA and fault oscillograph) is integrated process by it; security and stability analysis and the decision-making of carrying out online and off-line calculate; for yardman provides control decision support, improve the reliability of Operation of Electric Systems.
Real Time Digital Simulator (RTDS) is a kind of concurrent computational system realizing real-time electric power system electromagnetic transient simulation and develop manufacture specially by Canadian Manitoba company.The highly-parallel computing power of RTDS, extensibility and higher simulation accuracy make it more and more be approved.At present, utilize RTDS to carry out electric system investigative technique day by day ripe, utilize its operating analysis carrying out AC/DC parallel electrical network, trend distribution calculates, all many-sided research such as powernet stability analysis and decision-making.
It is that integration of sampling from energy management system EMS, the wide-area monitoring systems WAMS etc. of practical power systems forms that safety on line stablizes early warning and the required data message of aid decision-making system development& testing under traditional mode, this data acquiring mode can obtain the real-time traffic information of actual electric network, but cannot meet safety on line and stablize early warning and aid decision-making system and carry out electricity net safety stable real-time early warning, online aid decision making and coordinated defense technology and deepen the needs studied.On the one hand, be ensure actual electric network safe operation, do not allow artificially to arrange electric network fault or disturbance to verify that safety on line stablizes correctness, the practicality of early warning and aid decision-making system function; On the other hand, safety on line stablize control measure that early warning and aid decision-making system provide act on actual electric network after operation of power networks characteristic cannot be obtained by off-line simulation means.In addition, along with the development of Power Electronic Technique, nearly all electric system advanced control equipment is all based on power electronic devices, there is flexible feature fast, the responsive time constant of these equipment may diminish to a few tens of milliseconds, and by communication delay and data processing delay, currently become the cycle of operation of power networks status data to be level second by EMS with WAMS system combination, therefore the dynamic Characteristic Data of the short time of Novel electronic devices cannot gather.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of electric system closed loop verification platform based on Real Time Digital Simulator and verification method, achieve RTDS to stablize early warning with safety on line and be connected with the real-time closed-loop of aid decision-making system, convert operation of power networks status information in RTDS to standard E formatted data that safety on line stablizes early warning and aid decision-making system, safety on line is stablized the decision information that early warning and aid decision-making system calculate simultaneously and feed back to the real time modifying that RTDS carries out electric network model parameter, early warning is stablized and aid decision-making system provides development environment for safety on line, test and validation environment.
A kind of electric system closed loop verification platform based on Real Time Digital Simulator provided by the invention, comprises Real Time Digital Simulator RTDS and safety on line stablizes early warning and aid decision-making system; Described safety on line is stablized early warning and is comprised with aid decision-making system the data process subsystem, parallel computation subsystem, data storage subsystem, human-machine interaction subsystem, Information issued subsystem and the off-line analysis subsystem that are connected with router; Its improvements are, described safety on line is stablized early warning and aid decision-making system and comprised Information Control Service and manage device; Described Information Control Service reason device is connected with described router;
Data are passed to described safety on line by Ethernet and are stablized early warning and aid decision-making system by described Real Time Digital Simulator RTDS, form closed-loop system.
Wherein, described Real Time Digital Simulator RTDS and described Information Control Service are managed between device and are adopted communication protocol DNP3.0 for completing the data communication of the WAN/LAN based on ICP/IP protocol.
Wherein, described Information Control Service reason device stablizes early warning and aid decision-making system and described Real Time Digital Simulator RTDS distribution network address to described safety on line, Serial Communication of going forward side by side.
Wherein, after the data obtained from described Real Time Digital Simulator RTDS are carried out the conversion of data message format by described Information Control Service reason device, described data storage subsystem etc. is passed to through described router;
Described Information Control Service reason device is stablized after data that early warning and aid decision-making system obtain carry out the conversion of data message format from described safety on line and is passed to described Real Time Digital Simulator RTDS.
Wherein, described Real Time Digital Simulator RTDS comprises IRC card, GTNET card and the GPC card of at least one;
After at least one GPC card described intercoms mutually, specification signal is passed to described IRC card, described IRC card will pass to described GTNET card after signal transacting; Signal is passed to described Information Control Service reason device by described GTNET card.
Wherein, described safety on line stablizes early warning and aid decision-making system comprises WARMAP system.
The present invention is based on a kind of verification method based on above-mentioned verification platform that another object provides, its improvements are, described method comprises the steps:
(1) described Real Time Digital Simulator RTDS passes to by Ethernet the described Information Control Service that described safety on line stablizes early warning and aid decision-making system manage device by emulating the status data information of electric power system model that obtains;
(2) the described data message received processes according to the network address distributed by described Information Control Service reason device, and passes to through router the described data storage subsystem etc. that described safety on line stablizes early warning and aid decision-making system.
(3) described safety on line stablizes early warning and aid decision-making system carries out analysis and calculation to described data message, and the decision information drawn is fed back to described Real Time Digital Simulator RTDS by described Information Control Service reason device;
(4) described Real Time Digital Simulator RTDS is according to the designated parameter in decision information amendment electric power system model.
Wherein, step (2) described Information Control Service reason device reception data comprise the steps:
1. the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, and described Information Control Service reason device sends the request of data of specification signal to described Real Time Digital Simulator RTDS;
2. send after described Real Time Digital Simulator RTDS receives request of data and confirm to answer and carry out network transmission by after specific data encapsulation;
3. carry out confirmation after described Information Control Service reason device receives described data to answer.
Wherein, step (2) described Information Control Service reason device carries out process to data message and comprises the steps:
Described in <1>, Information Control Service reason device converts described electrical network real-time status data message to data layout that described safety on line stablizes early warning and aid decision-making system identification by calling external function, and the data be converted to are write corresponding file;
Safety on line described in <2> is stablized early warning and aid decision-making system and is called and carry database functions and read above-mentioned data file.
Wherein, step (3) comprises the steps:
A) described safety on line is stablized early warning and aid decision-making system and is called decision information computational analysis obtained from tape function and generate decision-making file;
B) described Information Control Service reason device extracts in Real Time Digital Simulator RTDS model by calling external function the data parameters needing to upgrade from decision-making file obtained above.
Wherein, step (4) comprises the steps:
I) the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, and information controlling center obtains the network address of Real Time Digital Simulator RTDS and decision information is carried out network transmission by after the encapsulation of DNP3.0 stipulations;
Ii) return after DNP3.0 formatted data is received in the GTNET clamping of described Real Time Digital Simulator RTDS and successfully receive answer;
Iii) the described DNP3.0 formatted data received is obtained the decision data of demand by the GTNET card of described Real Time Digital Simulator RTDS after resolving;
Iv) designated parameter in described Real Time Digital Simulator RTDS electric power system model according to described decision data online modification.
Compared with the prior art, beneficial effect of the present invention is:
The present invention is used for exploitation and the debugging that safety on line stablizes early warning and aid decision-making system, can be real-time analysis and calculation is carried out to electric network data, fast safety on line can be stablized decision signal that early warning and aid decision-making system provide simultaneously and feed back to Real Time Digital Simulator RTDS and carry out recruitment evaluation.The information interaction that the present invention is such, not only can intuitively, access control strategy validity, and high degree easily optimize research and development and the testing authentication pattern that safety on line stablizes early warning and aid decision-making system.
The invention solves and carrying out real-time data of power grid acquisition difficulty in electricity net safety stable real-time early warning, online aid decision making and coordinated defense technology in-depth research, the problem that control strategy cannot effectively be verified, the basis increasing system transplantation and dirigibility greatly reduces cost of development.
The present invention adds Information Control Service reason device in closed-loop system, and its effect is that process Real Time Digital Simulator RTDS and safety on line stablize data interaction between early warning and aid decision-making system and format conversion etc.Calling specific function in Information Control Service reason device can real-time processing data request and format conversion, truly reaches this requirement of real-time closed-loop.And in closed-loop system of the present invention, Information Control Service reason device can carry out a point batch record according to data scale and remerges transmission, still can reach requirement when data interaction amount is larger.
Information Control Service is managed device and is arranged at safety on line and stablizes in early warning and aid decision-making system by the present invention, and it saves space and material.
The present invention is reasonable in design, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the electric system closed loop verification platform based on Real Time Digital Simulator provided by the invention.
Its internal process figure when Fig. 2 is the device communication of Information Control Service provided by the invention reason.
Fig. 3 is that safety on line provided by the invention is stablized early warning and aid decision-making system and Information Control Service and managed device communication flow diagram.
Fig. 4 is the format chart of DNP3.0 stipulations provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
A kind of electric system closed loop verification platform based on Real Time Digital Simulator that the present embodiment provides, as shown in Figure 1, comprises Real Time Digital Simulator RTDS and safety on line stablizes early warning and aid decision-making system; Described safety on line stablizes early warning and aid decision-making system comprises data process subsystem, parallel computation subsystem, data storage subsystem, human-machine interaction subsystem, Information issued subsystem and off-line analysis subsystem; Described data process subsystem, parallel computation subsystem, data storage subsystem, human-machine interaction subsystem, Information issued subsystem are all connected with router with off-line analysis subsystem, realize parallel communications; Described safety on line is stablized early warning and aid decision-making system and is comprised Information Control Service and manage device; Described Information Control Service reason device is connected with described router;
Described Real Time Digital Simulator RTDS and described Information Control Service to be managed between device by Ethernet and are adopted communication protocol DNP3.0 to complete the data communication of the WAN/LAN based on ICP/IP protocol.
Described Information Control Service reason device stablizes early warning and aid decision-making system and described Real Time Digital Simulator RTDS distribution network address to described safety on line, then after the data obtained from described Real Time Digital Simulator RTDS are carried out the conversion of data message format by described Information Control Service reason device, described data storage subsystem etc. is passed to through router, described safety on line is stablized early warning and aid decision-making system the decision-making file obtained after analyzing is passed to described Information Control Service and is managed device, through an inverse conversion, achieve described safety on line to stablize early warning and communicate with described Real Time Digital Simulator RTDS with aid decision-making system, and define closed-loop system.
Wherein Information Control Service reason device is for the distribution of the network address and the information-source addresses communicated to connect when object is that explicit data communicates and destination address, and Real Time Digital Simulator RTDS and safety on line are stablized early warning and aid decision-making system and set up SOCKET based on ICP/IP protocol and communicate to connect.When Information Control Service reason device is to Real Time Digital Simulator RTDS solicited status data, the communication card GTNET card IP address of Real Time Digital Simulator RTDS is as source address, and information controlling center IP address is as destination address; When information controlling center sends decision information data to Real Time Digital Simulator RTDS, information controlling center IP address is as source address, and the communication card GTNET card IP address of Real Time Digital Simulator RTDS is as destination address.
As shown in Figure 4, be the format chart of DNP3.0 stipulations.The encapsulation of DNP3.0 formatted data information comprises emulation mode amount and switching signal controlled quentity controlled variable with parsing data type when Real Time Digital Simulator RTDS and safety on line stablize early warning and aid decision-making system communication, data assembling is mainly become DNP3.0 rule schemata according to the demand of source station in real data reciprocal process and transmits in a network after carrying out data packing with ICP/IP protocol by the work that DNP3.0 protocol encapsulation completes, the groundwork that DNP3.0 protocol analysis completes be the data message transmitted in network arrive specify point of destination after the demand data information of DNP3.0 data in packet is extracted.
Described Real Time Digital Simulator RTDS comprises IRC card in parallel, GTNET card and the GPC card of at least one; The GPC card of n (n is integer) is in parallel and after intercoming mutually, the signal of process is passed to described IRC card, and described IRC card will pass to described GTNET card after signal transacting; Signal is passed to described Information Control Service reason device by described GTNET card.
Described safety on line stablizes early warning and aid decision-making system can adopt WARMAP system.
The data process subsystem be connected to router of the present embodiment, parallel computation subsystem, data storage subsystem, human-machine interaction subsystem, Information issued subsystem and off-line analysis subsystem all realize its function by server and corresponding program.
For the verification platform of the present embodiment, the present embodiment provides a kind of test method of correspondence, and described method comprises the steps:
(1) described Real Time Digital Simulator RTDS passes to by Ethernet the described Information Control Service that described safety on line stablizes early warning and aid decision-making system manage device by emulating the status data information of electric power system model that obtains;
The Information Control Service that Real Time Digital Simulator RTDS and safety on line stablize early warning and aid decision-making system to be managed between device by Ethernet and is adopted communication protocol DNP3.0 to complete the data communication of the WAN/LAN based on ICP/IP protocol.
(2) the described data message received processes according to the network address distributed by described Information Control Service reason device, and passes to described data storage subsystem, carries out storing and information processing;
Wherein:
Information Control Service reason device receives data and comprises the steps (as shown in Figure 2):
1. the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, described Information Control Service reason device sends specification signal (magnitude of voltage that in such as RTDS, certain is put, current value or merit angle value etc. to described Real Time Digital Simulator RTDS, its parameter value is designated parameter, and specification signal is determined according to decision system) request of data;
2. send after described Real Time Digital Simulator RTDS receives request of data and confirm to answer and carry out network transmission by after specific data encapsulation;
3. carry out confirmation after described Information Control Service reason device receives described data to answer.
Information Control Service reason device carries out process to data message and comprises the steps:
Described in <1>, Information Control Service reason device converts described electrical network real-time status data message to data layout that described safety on line stablizes early warning and aid decision-making system identification by calling external function, and the data be converted to are write corresponding file;
Safety on line described in <2> is stablized early warning and aid decision-making system and is called and carry database functions and read above-mentioned data file.
(3) described safety on line stablizes early warning and aid decision-making system carries out analysis and calculation to described data message, and the decision information drawn is fed back to described Real Time Digital Simulator RTDS by described Information Control Service reason device;
It comprises the steps:
A) described safety on line stablizes early warning and aid decision-making system first refreshes database, then calls decision information computational analysis obtained from tape function and generate decision-making file;
B) described Information Control Service reason device extracts in Real Time Digital Simulator RTDS model by calling external function the data parameters needing to upgrade from decision-making file obtained above.And issue described Real Time Digital Simulator RTDS after its format conversion being become the discernible form of real-time digital device RTDS;
(4) described Real Time Digital Simulator RTDS is according to the designated parameter in decision information amendment electric power system model.
It comprises the steps:
I) the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, and information controlling center obtains the network address of Real Time Digital Simulator RTDS and decision information is carried out network transmission by after the encapsulation of DNP3.0 stipulations;
Ii) return after DNP3.0 formatted data is received in the GTNET clamping of described Real Time Digital Simulator RTDS and successfully receive answer;
Iii) the described DNP3.0 formatted data received is obtained the decision data of demand by the GTNET card of described Real Time Digital Simulator RTDS after resolving;
Iv) described Real Time Digital Simulator RTDS is according to the designated parameter in described decision data online modification electric power system model.
According to the amended POWER SYSTEM STATE data of step (4), it can carry out secondary revision in circulation step (1)-step (4) or repeatedly revise.
As shown in Figure 2, in figure, Information Control Service reason device inside needs to carry out packet parsing and message encapsulation to passed data for the Information Control Service reason device of the present embodiment and its intercommunication flow process of Real Time Digital Simulator RTDS; Information Control Service reason device and safety on line stablize early warning and aid decision-making system communication process as shown in Figure 3; To sum up tell, it is all complete data layout by Information Control Service reason device to transform, and realizes Real Time Digital Simulator RTDS and safety on line and stablizes communication between early warning and aid decision-making system.
The present invention by setting up the accurate model of electric system in Real Time Digital Simulator RTDS, the reflection electric system virtual condition of the real result making it emulate to obtain, safety on line is stablized early warning and aid decision-making system and Real Time Digital Simulator RTDS system simultaneously and connect into physics closed loop by Ethernet, electricity net safety stable real-time early warning is being carried out by system solves the problem, online aid decision making and coordinated defense technology are deepened real-time data of power grid in research and are obtained difficulty, the problem that control strategy cannot effectively be verified, early warning is stablized and aid decision-making system provides development environment for safety on line, test and validation environment.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1., based on an electric system closed loop verification platform for Real Time Digital Simulator, comprise Real Time Digital Simulator RTDS and safety on line stablizes early warning and aid decision-making system; Described safety on line is stablized early warning and is comprised with aid decision-making system the data process subsystem, parallel computation subsystem, data storage subsystem, human-machine interaction subsystem, Information issued subsystem and the off-line analysis subsystem that are connected with router; It is characterized in that, described safety on line is stablized early warning and aid decision-making system and is comprised Information Control Service and manage device; Described Information Control Service reason device is connected with described router;
Data are passed to described safety on line by Ethernet and are stablized early warning and aid decision-making system by described Real Time Digital Simulator RTDS, form closed-loop system;
Described Real Time Digital Simulator RTDS and described Information Control Service are managed between device and are adopted communication protocol DNP3.0 for completing the data communication of the WAN/LAN based on ICP/IP protocol;
Described Information Control Service reason device stablizes early warning and aid decision-making system and described Real Time Digital Simulator RTDS distribution network address to described safety on line, Serial Communication of going forward side by side;
Described safety on line stablizes early warning and aid decision-making system comprises WARMAP system;
After the data obtained from described Real Time Digital Simulator RTDS are carried out the conversion of data message format by described Information Control Service reason device, pass to described data storage subsystem through described router;
Described Information Control Service reason device is stablized after data that early warning and aid decision-making system obtain carry out the conversion of data message format from described safety on line and is passed to described Real Time Digital Simulator RTDS.
2. electric system closed loop verification platform as claimed in claim 1, it is characterized in that, described Real Time Digital Simulator RTDS comprises IRC card, GTNET card and the GPC card of at least one;
Specification signal is passed to described IRC card by least one GPC card described, and described IRC card will pass to described GTNET card after signal transacting; Signal is passed to described Information Control Service reason device by described GTNET card.
3., based on a verification method for the arbitrary described verification platform of claim 1-2, it is characterized in that, described method comprises the steps:
(1) described Real Time Digital Simulator RTDS passes to by Ethernet the described Information Control Service that described safety on line stablizes early warning and aid decision-making system manage device by emulating the status data information of electric power system model that obtains;
(2) the described data message received processes according to the network address distributed by described Information Control Service reason device, and passes to the described router that described safety on line stablizes early warning and aid decision-making system;
(3) described safety on line stablizes early warning and aid decision-making system carries out analysis and calculation to described data message, and the decision information drawn is fed back to described Real Time Digital Simulator RTDS by described Information Control Service reason device;
(4) described Real Time Digital Simulator RTDS is according to the designated parameter in decision information amendment electric power system model.
4. verification method as claimed in claim 3, is characterized in that, step (2) described Information Control Service reason device receives data and comprises the steps:
1. the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, and described Information Control Service reason device sends the request of data of specification signal to described Real Time Digital Simulator RTDS;
2. send after described Real Time Digital Simulator RTDS receives request of data and confirm to answer and carry out network transmission by after specific data encapsulation;
3. carry out confirmation after described Information Control Service reason device receives described data to answer.
5. verification method as claimed in claim 3, is characterized in that, step (2) described Information Control Service reason device carries out process to data message and comprises the steps:
Described in <1>, Information Control Service reason device converts electrical network real-time status data message to data layout that described safety on line stablizes early warning and aid decision-making system identification by calling external function, and the data be converted to are write corresponding file;
Safety on line described in <2> stablizes early warning and aid decision-making system calling data built-in function reads above-mentioned data file.
6. verification method as claimed in claim 3, it is characterized in that, step (3) comprises the steps:
A) described safety on line is stablized the decision information that computational analysis obtains by early warning and aid decision-making system call function and is generated decision-making file;
B) described Information Control Service reason device extracts in Real Time Digital Simulator RTDS model by calling external function the data parameters needing to upgrade from decision-making file obtained above.
7. verification method as claimed in claim 3, it is characterized in that, step (4) comprises the steps:
I) the GTNET card of described Real Time Digital Simulator RTDS is connected with the SCOKET that described Information Control Service reason device is set up based on TCP/IP, and Information Control Service reason device obtains the network address of Real Time Digital Simulator RTDS and decision information is carried out network transmission by after the encapsulation of DNP3.0 stipulations;
Ii) return after DNP3.0 formatted data is received in the GTNET clamping of described Real Time Digital Simulator RTDS and successfully receive answer;
Iii) the described DNP3.0 formatted data received is obtained the decision data of demand by the GTNET card of described Real Time Digital Simulator RTDS after resolving;
Iv) designated parameter of described Real Time Digital Simulator RTDS POWER SYSTEM STATE data according to described decision data online modification.
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| CN103761181A (en) * | 2013-11-18 | 2014-04-30 | 芜湖大学科技园发展有限公司 | Construction method of power test environment |
| CN104572247A (en) * | 2014-12-10 | 2015-04-29 | 南方电网科学研究院有限责任公司 | Hybrid real-time simulation method based on RTDS (real time digital simulator) |
| CN106934105B (en) * | 2017-02-17 | 2021-05-25 | 广西电网有限责任公司电力科学研究院 | Stable control closed loop simulation system based on RTDS |
| CN108957064A (en) * | 2018-07-11 | 2018-12-07 | 中国南方电网有限责任公司电网技术研究中心 | A kind of data interface converting device of remote testing |
| CN109308631B (en) * | 2018-08-13 | 2022-03-15 | 南方电网科学研究院有限责任公司 | Modeling method for electric power market decision analysis |
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