CN110417660B - Communication control method, inter-station router device and simulation test system - Google Patents
Communication control method, inter-station router device and simulation test system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
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- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/60—Router architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/253—Routing or path finding in a switch fabric using establishment or release of connections between ports
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Abstract
The invention discloses a communication control method of an inter-station communication route, which comprises the following steps: receiving communication information sent by a first safety stable control device through an input communication interface; searching an output communication interface corresponding to the input communication interface according to the identification of the input communication interface and the connection relation of the communication interfaces; the communication interface connection relation is adjustable, and the currently adopted communication interface connection relation is the connection relation which is adjusted and determined according to the current stability control strategy in the safety stability control system; and outputting the communication information to the second safety stable control device through the output communication interface. The communication control method in the application does not need to repeatedly dismantle and connect the connecting lines among all the safety stability control devices, reduces the complexity of a test program to a great extent, and improves the test efficiency. The application also provides a simulation test system of the interstation communication routing device and the safety stability control device, and the simulation test system has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of simulation test of a safety and stability control system of a power grid, in particular to a communication control method of an inter-station communication route, an inter-station router device and a simulation test system of the safety and stability control system.
Background
The power grid safety and stability control system relates to a plurality of plants, the control strategy is updated along with the construction of a power grid, and years of practice proves that the real-time simulation test system can fully perform dynamic simulation test on the stability control system closest to the field working condition, so that the effectiveness and the reliability of the stability control system on the safe and stable operation of the power grid are ensured.
The safety and stability control system of the power grid generally comprises stability control devices of a plurality of stations, and the stations can be separated from each other by dozens of kilometers or even thousands of kilometers in geographic position. The stable control devices of different plant stations are divided into a stable control main station, a stable control sub station and a stable control execution station according to the assumed tasks and the levels.
In order to perform simulation test on the safety and stability control system, safety and stability control devices of all relevant sites need to be built in a laboratory and form a specific topological connection relation. The stable control host of the safe stable control device of each station is connected with a communication device through multimode optical fibers.
When each stable control system corresponding to one stable control strategy is tested, the original connection relation needs to be removed, and wiring is performed according to the connection relation of the stable control system corresponding to the next stable control strategy. When the stability control system is tested, the connection relation between each safety and stability control device needs to be repeatedly dismantled and connected, so that the testing process is complex and complicated, and the simulation testing efficiency of the safety and stability control system is reduced.
Disclosure of Invention
The invention aims to provide a communication control method of an inter-station communication route, an inter-station router device and a simulation test system of a safety and stability control system, and solves the problems of complex simulation test process and low test efficiency of the safety and stability control system.
To solve the above technical problem, the present invention provides a communication control method for an inter-station communication route, including:
receiving communication information sent by a first safety stable control device through an input communication interface;
searching an output communication interface corresponding to the input communication interface according to the identification of the input communication interface and the connection relation of the communication interfaces; the communication interface connection relation is adjustable, and the currently adopted communication interface connection relation is a connection relation which is adjusted and determined according to a current stability control strategy in the safety stability control system;
and outputting the communication information to a second safety stable control device through the output communication interface.
Wherein, the process of adjusting the connection relation of the communication interface comprises the following steps:
receiving a command for updating the connection relation of the communication interface;
deleting the existing communication interface connection relation;
and downloading and writing the new communication interface connection relation so as to update the communication connection relation.
The invention also provides an inter-station communication routing device, which comprises a processor, a memory and a communication interface connected with the processor;
the communication interface comprises a plurality of input communication interfaces and a plurality of output communication interfaces which are used for being connected with the safety and stability control device;
the memory is used for storing a computer program;
the processor is configured to receive communication information through the input communication interface board, and execute the computer program according to the communication information, so as to implement the operation steps of the communication control method for inter-station communication routing.
The processor is an FPGA (field programmable gate array) board card processor.
The input communication interface is used for inputting an analog quantity signal and a digital quantity signal.
The invention also provides a simulation test system of the safety and stability control system, which comprises: the system comprises a real-time simulation device, a communication interface device, a plurality of safety stability control devices and an inter-station communication routing device;
the real-time simulation device is used for generating a simulation test signal of the operation of the power grid;
the communication interface device is used for connecting the real-time simulation device and the plurality of safety stability control devices and outputting the simulation test signal to each safety stability control device;
the safety and stability control device is used for carrying out safety and stability control operation according to the simulation test signal and obtaining a safety and stability control result so as to test a safety and stability control system;
the interstation communication routing device is used for being respectively connected with each safety stability control device and establishing communication connection among the safety stability control devices according to topological connection relation among the safety stability control devices.
The communication interface device at least comprises a GTAO board card, a GTDO board card, a GTDI board card and a GTNET board card.
The safety stable control device comprises a stable control host and two stable control slave machines; the stable control host is connected with the inter-station communication routing device, and the stable control slave is connected with the communication interface device.
And the communication interface device and the inter-station communication routing device are provided with standby interfaces.
The communication control method of the inter-station communication route provided by the invention comprises the steps of receiving communication information sent by a first safety and stability control device through an input communication interface; searching an output communication interface corresponding to the input communication interface according to the identification of the input communication interface and the connection relation of the communication interfaces; the communication interface connection relation is adjustable, and the currently adopted communication interface connection relation is the connection relation which is adjusted and determined according to the current stability control strategy in the safety stability control system; and outputting the communication information to the second safety stable control device through the output communication interface.
According to the method and the device, the topological connection relation among all the safety stable control devices is set according to the stable control strategy of the stable control test, and the communication interface connection relation of all the inter-station communication routing devices is set according to the topological connection relation, so that the safety stable control devices can automatically transmit signals according to the test requirement. The connecting circuit among all the safety stability control devices is not required to be dismantled and connected again aiming at each stability control strategy test, so that the complexity of the test program is reduced to a great extent, and the test efficiency is improved.
The application also provides a simulation test system of the interstation communication routing device and the safety stability control device, and the simulation test system has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a communication control method for inter-station communication routing according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a process of adjusting a connection relationship of a communication interface according to an embodiment of the present invention;
fig. 3 is a block diagram of an inter-station communication routing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure of a safety and stability control system according to an embodiment of the present invention;
fig. 5 is a schematic view of a topological relationship of a plant of a safety and stability control system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a connection structure of a security and stability control system and an inter-station communication routing apparatus according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, fig. 1 is a schematic flowchart of a communication control method for inter-station communication routing according to an embodiment of the present invention, where the method may include:
step S11: and receiving communication information sent by the first safety stable control device through the input communication interface.
It should be noted that the communication control method in this embodiment is mainly used for implementing signal transmission between the safety and stability control devices when the safety and stability control devices perform simulation tests. Therefore, each communication interface of the inter-station communication route in the invention is an interface which is respectively connected with each safety and stability control device.
In addition, the input communication interface in this embodiment is a communication interface for inputting communication information, and the output communication interface is a communication interface for outputting communication information.
Step S12: and searching an output communication interface corresponding to the input communication interface according to the identification of the input communication interface and the connection relation of the communication interfaces.
The communication interface connection relation is adjustable, and the currently adopted communication interface connection relation is the connection relation which is determined to be adjusted according to different stability control strategies in the safety stability control system.
When simulation test is carried out on the safety and stability control devices, the number of related sites is large, each site is provided with the corresponding safety and stability control device, the whole power grid generally has multiple stability control strategies, for each stability control strategy, a topological relation among the safety and stability control devices correspondingly exists, the topological relation is a communication connection relation among the safety and stability control devices, and communication interface connection relations of communication interfaces connected with the safety and stability control devices are determined based on the topological relation.
In this embodiment, the communication interface connection relationship is an adjustable connection relationship, that is, when the communication interface connection relationship is adjusted, the topological relationship between the safety and stability control devices may be changed accordingly. When simulation tests are carried out on different stability control strategies in the safety stability control system, the connection relation of the communication interfaces is only required to be adjusted to the connection relation corresponding to the stability control strategy, and the connection between each safety stability control device and each communication interface is not required to be disassembled and assembled again, so that the simulation test process is simpler.
Step S13: and outputting the communication information to the second safety stable control device through the output communication interface.
The inter-station communication route can complete the communication connection among the communication interfaces according to the communication interface connection relation among the communication interfaces. Because the connection relation of the communication interfaces is adjustable, and aiming at the simulation test of different stability control strategies in the safety stability control system, the connection relation of the communication interfaces can be adjusted to be a corresponding connection relation according to the stability control strategy to be tested at present, and the connection between each safety stability control device and each communication interface is not required to be disassembled and assembled again, so that the simulation test process is simpler, the complexity of the test process is reduced, and the test efficiency of the simulation test of the safety stability control system is improved to a great extent.
As mentioned above, the communication interface connection relationship is adjustable, and there are many specific adjustment ways for the communication interface connection relationship. In another embodiment of the present invention, as shown in fig. 2, fig. 2 is a schematic flow chart of a process of adjusting a connection relationship of a communication interface according to an embodiment of the present invention, which may specifically include:
step S21: receiving a command for updating the connection relation of the communication interface;
step S22: deleting the existing communication interface connection relation;
step S23: and downloading and writing the new communication interface connection relation so as to update the communication connection relation.
The present embodiment is a specific embodiment of updating and adjusting the connection relationship of the communication interfaces, but the present invention is not limited to the embodiment of adjusting the connection relationship of the communication interfaces provided in the present embodiment, for example, information of the connection relationship of multiple communication interfaces may be stored in advance, and when simulation tests are performed on different stability control policies, a corresponding one may be selected. There are other similar embodiments for adjusting the connection relationship of the communication interfaces, which are not listed in the present invention.
Fig. 3 shows a block diagram of an inter-station communication routing apparatus provided in an embodiment of the present invention, where fig. 3 is a block diagram of the inter-station communication routing apparatus provided in the embodiment of the present invention, and the apparatus may include:
a processor 100, a memory 200, and a communication interface 300 connected to the processor 100;
the communication interface 300 comprises a plurality of input communication interfaces and a plurality of output communication interfaces for connecting with the safety and stability control device;
the memory 200 is used to store a computer program;
the processor 100 is configured to receive communication information through the input communication interface board, and execute a computer program according to the communication information to implement the operation steps of the communication control method for inter-station communication routing according to any of the above embodiments.
In the prior art, each safety and stability control device is directly connected through a cable, the connection mode is determined by a stability control strategy in the safety and stability control system, and when different stability control strategies need to be simulated and tested, the cable connected among the safety and stability control devices needs to be detached and reinstalled so as to meet the connection requirement of a new stability control strategy. That is to say, when testing various stability control strategies in the safety stability control system, cables between safety stability control devices need to be frequently detached and installed.
The inter-station communication routing device in this embodiment may be directly connected to each safety and stability control device, and the communication interface connection relationship of the communication interface 300 connected to each safety and stability control device is adjustable, that is, the communication connection between each safety and stability control device may be directly implemented through the running software program of the inter-station communication routing device, and it is not necessary to frequently detach and install cables between each safety and stability control device, thereby reducing the complexity of the simulation test of the safety and stability control system and improving the test efficiency.
Optionally, in another specific embodiment of the present invention, the processor 100 may be further included as an FPGA board card processor.
Of course, the processor in the present invention may be another type of processor as long as the communication control method of the inter-station communication route described above can be implemented.
In the present embodiment, the memory 200 may be a Random Access Memory (RAM), a memory, a Read Only Memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other type of storage medium known in the art, and the present invention is not limited thereto.
Optionally, in another specific embodiment of the present invention, the method may further include: the communication interface 300 is used for inputting and outputting analog quantity signals and digital quantity signals.
In general, the communication interface 300 is referred to as an input communication interface for inputting a communication signal, and as an output communication interface for outputting a communication signal. In addition, analog quantities such as voltage and current of the power grid equipment and digital quantities such as switch position of the circuit breaker and switch quantity such as trip signal are mainly required to be transmitted between the safety and stability control devices, and accordingly, the communication interface 300 in the embodiment also needs to adopt an interface capable of transmitting digital quantities and analog quantities.
The invention also provides a simulation test system of a safety and stability control system, as shown in fig. 4, fig. 4 is a schematic diagram of a connection structure of the safety and stability control system provided by the embodiment of the invention, and the simulation test system comprises:
the system comprises a real-time simulation device 1, a communication interface device 2, a plurality of safety stability control devices 3 and an inter-station communication routing device 4 according to any embodiment;
the real-time simulation device 1 is used for generating a simulation test signal of the operation of the power grid;
the communication interface device 2 is used for connecting the real-time simulation device 1 and the plurality of safety stability control devices 3 and outputting simulation test signals to the safety stability control devices 3;
the safety and stability control device 3 is used for carrying out safety and stability control operation according to the simulation test signal and obtaining a safety and stability control result so as to realize the test of the safety and stability control system;
the inter-station communication routing device 4 is used for being respectively connected with each safety and stability control device 3, and establishing communication connection among each safety and stability control device 3 according to topological connection relation among each safety and stability control device 3.
In fig. 4, the communicator in the inter-station communication routing apparatus 4 is a hardware device corresponding to a specific communication interface, and the router is a hardware device that runs and stores a software program of the inter-station communication routing apparatus 4.
In the simulation test, the real-time simulation device 1 can realize microsecond real-time simulation step length, carry out the simulation of the digitized electromagnetic transient model of the electric power system, and transmit the analog quantity such as voltage, current and the like of the transmission network line, the transformer and the generator and the switching value (namely digital quantity) such as the switch position of the circuit breaker, the tripping signal and the like to the safety and stability control device 3 through the necessary communication interface device 2. Specifically, the real-time simulation device 1 is connected to the communication interface device 2 through a multimode fiber of an LC-LC interface, and a simulation test signal sent by the fiber includes an analog quantity signal and a digital quantity signal, which respectively satisfy the sampling requirement and the switching value input/output requirement of the safety stability control device 3 on voltage and current.
The light receiving module in the communication interface device 2 converts the simulation test signal in the form of the optical signal sent by the real-time simulation device 1 through the optical fiber into the simulation test signal in the form of the electrical signal, inputs the simulation test signal in the form of the electrical signal to the corresponding safety and stability control device 3, and transmits the signal between the safety and stability control devices 3.
The safety and stability control device 3 judges the fault of the power system through the received analog quantity and digital quantity (namely the switching quantity), carries out necessary stability calculation, executes a corresponding stability control strategy, and feeds signals such as splitting, cutting, load cutting and the like back to the real-time simulation device 1 through the communication interface device 2, thereby forming a closed-loop test system consisting of a controlled object and a controller.
As shown in fig. 5, fig. 5 is a schematic view of a topological relationship between a plant station of a safety and stability control system according to an embodiment of the present invention. In fig. 5, each of the stability control master station, the stability control slave station and the stability control execution station is respectively equivalent to a safety stability control device 3, in fig. 5, 8 safety stability control devices 3 corresponding to 8 plant stations are included to respectively form a stability control master station and two stability control slave stations respectively connected with the stability control master station, one of the stability control slave stations is connected with two stability control execution stations, and the other stability control slave station is connected with three stability control execution stations.
In order to fully test the safety and stability control system, various stability control strategies in the safety and stability control system need to be tested comprehensively, and different topological connection relations among the safety and stability control devices 3 need to be corresponded to aiming at each stability control strategy. In the application, the topological connection relation among the safety stability control devices 3 can be changed rapidly and effectively through the inter-station communication routing device 4, the test process of the safety stability control system is simplified, and the simulation test efficiency is improved.
In summary, the simulation test system of the safety and stability control system disclosed by the invention connects all communication interfaces with each safety and stability control device 3 through the inter-station communication routing device 4, and realizes communication between each communication interface according to the connection relationship of the communication interfaces; when the connection relation of the communication interfaces needs to be changed, the safety and stability control system with any topological connection relation can be formed by any number of safety and stability control devices 3 only by updating the program of the connection relation of the communication interfaces, so that the work of frequently wiring and plugging and unplugging cable optical fibers is greatly reduced, and the test period is shortened.
Optionally, in another specific embodiment of the present invention, the method may further include:
the communication interface device 2 at least comprises a GTAO board card, a GTDO board card, a GTDI board card and a GTNET board card.
The real-time simulation apparatus 1 in this embodiment has a communication capability with a plurality of digital input/output interfaces, including but not limited to GTAO communication, GTDO communication, GTDI communication, GTNET communication, and the like.
The communication interface device 2 also includes but is not limited to GTAO board, GTDO board, GTDI board, GTNET board accordingly. Each GTAO board card is provided with 12 paths of electric analog quantity outputs; each GTDO board card is provided with 64 paths of electrical switching value outputs; each GTDI board card is provided with 64 paths of electrical switching value input; each GTNET board card is provided with at least 36 paths of analog quantity digital output and switching value signal input and output.
Optionally, in another specific embodiment of the present invention, the method may further include:
the safety stable control device 3 comprises a stable control host and two stable control slave machines; the stable control host is connected with the inter-station communication routing device 4, and the stable control slave is connected with the communication interface device 2.
In order to fully test the safety and stability control system, the safety and stability control devices 3 of all relevant sites need to be built in a laboratory and form a specific topological connection relationship. The stable control slave machine of the safety stable control device 3 of each station is connected with a communication interface device 2 through multimode optical fibers, and the communication interface devices 2 are mutually connected through coaxial cables according to specific communication requirements.
The sampling board card of the stable control slave of the safety stable control device 3 is subjected to low-pass filtering of a hardware circuit and then sends a communication signal to the stable control host through a multimode optical fiber of an ST-ST interface.
As shown in fig. 6, fig. 6 is a schematic diagram of a connection structure between a security and stability control system and an inter-station communication routing apparatus according to an embodiment of the present invention. The steady control host of each steady control station (equivalent to the safety steady control device 3) is connected to the communication machine of the inter-station communication routing device 4 through an optical fiber. The sending end of the stable control host is connected with the receiving end of the communication machine (i.e. communication interface) in the inter-station communication route 4, and the receiving end of the stable control host is connected with the sending end of the communication machine, fig. 6 only shows the connection mode of two stable control stations and the inter-station communication route device 4, and the connection mode of other safety and stable control devices 3 is completely consistent with that shown in fig. 6, and is not repeated here.
And after the stable control host of the safety stable control device 3 acquires signals such as voltage, current, switch position and the like of the power system station sent by the stable control slave, the operation mode of the power grid is judged, and stable control strategy calculation is carried out. When the power system simulated by the real-time simulation device 1 has a fault, the stability control host calculates a corresponding strategy, sends a strategy execution instruction to the stability control slave, and the slave executes control commands of a unit cutting machine, a load cutting circuit, a disconnection circuit and the like and transmits the control commands back to the real-time simulation device 1 through the communication interface device.
Optionally, in another specific embodiment of the present invention, the method may further include:
the communication interface device 2 and the inter-station communication routing device 4 are both provided with backup interfaces.
Considering that the number of the production stations is the same when different safety and stability control systems are tested, in order to meet various safety and stability control systems as much as possible, a plurality of standby interfaces can be arranged for the communication interface device 2 and the inter-station communication routing device 4 as much as possible, and 1 to n (n is less than or equal to 48) safety and stability control devices 3 of the plant stations can be accessed to form any safety and stability control system so as to meet the test requirements.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. For the device and the system disclosed by the embodiment, the description is relatively simple because the device and the system correspond to the method disclosed by the embodiment, and the relevant points can be referred to the description of the method part.
Claims (4)
1. The utility model provides a simulation test system of safety and stability control system which characterized in that includes: the system comprises a real-time simulation device, a communication interface device, a plurality of safety stability control devices and an inter-station communication routing device;
the real-time simulation device is used for generating a simulation test signal of the operation of the power grid;
the communication interface device is used for connecting the real-time simulation device and the plurality of safety stability control devices and outputting the simulation test signal to each safety stability control device;
the safety and stability control device is used for carrying out safety and stability control operation according to the simulation test signal and obtaining a safety and stability control result so as to test a safety and stability control system;
the inter-station communication routing device is used for being respectively connected with each safety stability control device and establishing communication connection among the safety stability control devices according to topological connection relation among the safety stability control devices;
the inter-station communication routing device receives communication information sent by the first safety stable control device through the input communication interface;
the inter-station communication routing device searches an output communication interface corresponding to the input communication interface according to the identification of the input communication interface and the connection relation of the communication interfaces; the communication interface connection relation is adjustable, and the currently adopted communication interface connection relation is a connection relation which is adjusted and determined according to a current stability control strategy in the safety stability control system;
and outputting the communication information to a second safety stable control device through the output communication interface.
2. The simulation test system of the safety and stability control system according to claim 1, wherein the communication interface device at least comprises a GTAO board card, a GTDO board card, a GTDI board card and a GTNET board card.
3. The simulation test system of the safety and stability control system according to claim 1, wherein the safety and stability control device comprises a stability control host and two stability control slaves; the stable control host is connected with the inter-station communication routing device, and the stable control slave is connected with the communication interface device.
4. The simulation test system of a safety and stability control system according to claim 1, wherein the communication interface means and the inter-station communication routing means are provided with backup interfaces.
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| JP6510443B2 (en) * | 2016-02-29 | 2019-05-08 | 日本電信電話株式会社 | Wavelength cross connect device |
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| WO2017113321A1 (en) * | 2015-12-31 | 2017-07-06 | 深圳配天智能技术研究院有限公司 | Automatic test system for numerical control mainboard |
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| CN101192968A (en) * | 2006-11-22 | 2008-06-04 | 中兴通讯股份有限公司 | A method for automatically getting optical network connection relation |
| CN105702187A (en) * | 2016-01-15 | 2016-06-22 | 京东方科技集团股份有限公司 | Interface circuit and test device |
| JP6510443B2 (en) * | 2016-02-29 | 2019-05-08 | 日本電信電話株式会社 | Wavelength cross connect device |
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