CN106789275B - Power transmission network security test system and method for electric power system - Google Patents
Power transmission network security test system and method for electric power system Download PDFInfo
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Abstract
The invention relates to the technical field of intelligent power grids, and discloses a power transmission network safety testing system and method for an electric power system. It includes: the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the power center simulation subsystem are in communication connection with each other; an electric power system transmission network simulation model runs in the electric power system transmission network real-time simulation subsystem; the power transmission network secondary equipment simulation subsystem of the power system is used for simulating secondary equipment of the power system; and the power center simulation subsystem is used for monitoring the power transmission network of the power system. The method and the device can integrate the information physical characteristics of the power transmission network of the power system, can simulate and analyze the safety attack and defense problems of the power transmission network of the power system, and are favorable for promoting the development of the information safety technology of the power transmission network of the power system.
Description
Technical Field
The invention relates to the technical field of smart power grids, in particular to a power transmission network safety testing system and method for an electric power system.
Background
As a critical infrastructure of modern society, power systems are a high value target for cyber attacks. Scientific researchers combine technical means such as access control, authentication encryption and intrusion detection in the field of information security with the power production flow to research the information security protection implementation mode of the power system. In the process of digitalization and intellectualization, the power system is gradually developed into a power information physical system (GCPS) formed by fusing an information system and a physical system. In an electric power system, the transmission network is one of the main components of the electric power system, the dispatch control and the state monitoring of the transmission network are highly dependent on the information system, and the occurrence of a safety event may cause serious consequences.
The inventor discovers that in the process of implementing the invention: the existing power system simulation platform is difficult to meet the requirements of safety attack and defense verification of a power transmission network for the following reasons:
(1) an information system of a traditional electric power system simulation platform generally considers a physical system, and an interconnection system with mutual influence of information and physics is inconvenient to realize in power transmission network safety attack and defense.
(2) The traditional power system simulation platform is difficult to meet the problem of power transmission network safety attack and defense information physical hybrid simulation.
(3) In a power transmission network safety attack and defense platform, a discrete calculation process and a continuous physical information process are combined in a system, a physical information hybrid simulation process is often composed of a plurality of parallel/concurrent physical activities or information events, the combination of the calculation process and the information physical process enables the system behavior and state to have more vivid spatiotemporal characteristics and dynamic uncertainty, and the existing power system simulation platform is difficult to describe the combination characteristics of the two.
Disclosure of Invention
The invention aims to provide a system and a method for testing the safety of a power transmission network of a power system, which can fuse the information physical characteristics of the power transmission network of the power system, can simulate and analyze the safety attack and defense problems of the power transmission network of the power system, and is beneficial to promoting the development of the information safety technology of the power transmission network of the power system.
In order to solve the above technical problem, an embodiment of the present invention provides a power transmission network security testing system for an electric power system, including: the system comprises an electric power system transmission network real-time simulation subsystem, an electric power system transmission network secondary equipment simulation subsystem and an electric power center simulation subsystem; the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the power center simulation subsystem are in communication connection; an electric power system transmission network simulation model runs in the electric power system transmission network real-time simulation subsystem; the power transmission network secondary equipment simulation subsystem of the power system is used for simulating secondary equipment of the power system; the electric power center simulation subsystem is used for monitoring the electric power transmission network of the electric power system; the power system power transmission network real-time simulation subsystem and the power system power transmission network secondary equipment simulation subsystem comprise node equipment corresponding to the node equipment monitored by the power center simulation subsystem.
The embodiment of the invention also provides a method for testing the safety of the power transmission network of the power system, which comprises the following steps: constructing a power system power transmission network real-time simulation subsystem, a power system power transmission network secondary equipment simulation subsystem and a power center simulation subsystem which are mutually connected; operating a power system power transmission network simulation model in the power system power transmission network real-time simulation subsystem, simulating secondary equipment of the power system by the power system power transmission network secondary equipment simulation subsystem, and monitoring the power system power transmission network by the power center simulation subsystem; the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the node equipment in the power center simulation subsystem correspond to each other.
Compared with the prior art, the embodiment of the invention constructs the power transmission network security verification platform of the power system by respectively constructing the power transmission network real-time simulation subsystem, the power transmission network secondary equipment simulation subsystem and the power center simulation subsystem of the power system and connecting the two subsystems in a communication way. And the power system power transmission network real-time simulation subsystem runs the power system power transmission network simulation model, the power system power transmission network secondary equipment simulation subsystem simulates the power system secondary equipment and the power center simulation subsystem is used for monitoring the power system power transmission network, so that interaction and mutual influence of communication information in the power system power transmission network and physical information of the power system power transmission network are realized, and platform support is provided for research of the power system power transmission network safety attack and defense technology. By providing the power transmission network safety testing system of the power system to simulate and analyze the attack and defense safety problems of the power transmission network, the method is not only beneficial to diagnosing the existing safety problems, but also can simulate and predict the safety state of the future power transmission network, and reduces the difficulty of applying calculation analysis. Effective simulation and verification tests can be realized for safety problems of a series of large-scale complex models such as physical faults, safety and network information of the power transmission network of the power system, scientific research and product research and development in the field of power transmission network safety of the power system are accelerated, and the method has wide application prospect.
In addition, the power system power transmission network real-time simulation subsystem comprises: the upper computer is used for generating a power transmission network simulation model of the power system; the electric power system real-time simulation machine is in communication connection with the upper computer and is used for operating the electric power system power transmission network simulation model; and the display device is in communication connection with the real-time power system simulator and is used for displaying the running state of the power transmission network simulation model of the power system.
In addition, the power system power transmission network simulation model includes: 220 kv transmission networks, 110 kv transmission networks, 35 kv transmission networks, substations, flexible dc transmission, etc.
In addition, the power system power transmission network secondary equipment simulation subsystem comprises: the secondary equipment simulators and/or the secondary real equipment of the power transmission network; and the secondary equipment simulator is used for simulating secondary equipment of the power transmission network.
In addition, the power transmission network secondary real device includes: the device comprises relay protection equipment, a phasor measuring device, a remote terminal unit, a safety automatic device and a fault filtering device.
In addition, the real-time power system simulator is also used for operating a power system communication protocol.
In addition, the power system communication protocol comprises one of the following protocols or any combination thereof: IEC61850, TCP/IP, CAN, MODBUS, PROFIBUS.
In addition, the power system transmission network safety test system further comprises: and the at least one alarm device is in communication connection with the real-time power system simulator.
In addition, the alarm device comprises an alarm controller and a plurality of alarm units; the alarm controller is used for controlling the alarm unit to give an alarm.
Drawings
Fig. 1 is a schematic structural diagram of a power transmission network safety test system of an electric power system according to a first embodiment of the invention;
fig. 2 is a schematic structural diagram of a power transmission network real-time simulation subsystem of the power system according to the first embodiment of the invention;
fig. 3 is a flow chart of a safety testing method for a power transmission network of an electric power system according to a first embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The first embodiment of the invention relates to a power transmission network safety testing system of an electric power system. The specific structure is shown in fig. 1. This electric power system transmission network security test system includes: the system comprises an electric power system power transmission network real-time simulation subsystem, an electric power system power transmission network secondary equipment simulation subsystem and an electric power center simulation subsystem. The power transmission network real-time simulation subsystem of the power system, the power transmission network secondary equipment simulation subsystem of the power system and the power center simulation subsystem are in communication connection. An electric power system transmission network simulation model runs in the electric power system transmission network real-time simulation subsystem, the electric power system transmission network secondary equipment simulation subsystem is used for simulating electric power system secondary equipment, and the electric power center simulation subsystem is used for monitoring the electric power system transmission network. The power transmission network real-time simulation subsystem of the power system, the power transmission network secondary equipment simulation subsystem of the power system and the node equipment in the power center simulation subsystem correspond to each other. Therefore, when the power system transmission network safety test system of the embodiment operates, because the node devices in the power system transmission network real-time simulation subsystem, the power system transmission network secondary device simulation subsystem and the power center simulation subsystem correspond to each other, the parallel/concurrent physical activities and information events in the system can be fused, interacted and influenced with each other.
As shown in fig. 2, the power transmission network real-time simulation subsystem of the power system comprises: host computer, real-time emulation machine of electric power system and display device. The upper computer is in communication connection with the real-time power system simulator, and the real-time power system simulator is in communication connection with the display device through the high-speed interface. The upper computer is used for generating a power transmission network simulation model of the power system. The upper computer can compile a power system power transmission network simulation model by adopting imaged power and power electronic simulation software, compile the power system power transmission network simulation model into program codes, download and deploy the program codes into the power system real-time simulation machine. In one example, the power system power transmission network simulation model includes: 220 kilovolt (kV) transmission network, 110 kilovolt (kV) transmission network, 35 kilovolt (kV) transmission network, transformer substation, flexible direct current transmission and other electric power models. The power transmission network simulation model of the power system is not particularly limited in this embodiment. The electric power system real-time simulator is used for operating an electric power system power transmission network simulation model and operating an electric power system communication protocol. Among them, the power system communication protocol includes but is not limited to the following: IEC61850, TCP/IP, CAN, MODBUS, PROFIBUS (Process Field Bus for short). The display device can display the server and the large-size display screen and is used for displaying the running state of the power transmission network simulation model of the power system in real time.
In one example, the power system power transmission network safety test system further comprises: and the alarm device is in communication connection with the real-time simulation machine of the power system. The alarm device comprises an alarm controller and a plurality of alarm units. The alarm controller is connected with each alarm unit respectively and is used for controlling each alarm unit to alarm, and the alarm units can adopt audible and visual alarms.
The power transmission network secondary equipment simulation subsystem of the power system comprises: and the secondary equipment simulators and/or the secondary real equipment of the power transmission network. The secondary equipment simulator can adopt a high-performance industrial personal computer, is provided with an operating system and a power transmission network communication protocol of an electric power system, and is also used for operating a control algorithm to simulate some corresponding secondary equipment of the power transmission network, so that secondary real equipment needing to be accessed can be replaced. The power transmission network secondary real equipment may include: relay protection equipment, a PMU (Phasor Measurement Unit for short), an RTU (remote terminal Unit for short), a safety automatic device, a fault filtering device, and the like. The embodiment does not specifically limit the secondary real equipment and the simulation equipment of the power transmission network.
The power center simulation subsystem is, for example, a server composed of a plurality of high-performance computers, and power transmission network monitoring software of a power system is installed in the server. The power transmission network of the power system can be monitored in real time by operating the monitoring software of the power transmission network of the power system, and the power transmission network of the power system can be scheduled.
According to the embodiment, the power transmission network real-time simulation subsystem, the power transmission network secondary equipment simulation subsystem and the power center simulation subsystem of the power system are respectively built and are in communication connection with each other, so that the power transmission network security verification platform of the power system is formed. And the power system power transmission network real-time simulation subsystem runs the power system power transmission network simulation model, the power system power transmission network secondary equipment simulation subsystem simulates the power system secondary equipment and the power center simulation subsystem is used for monitoring the power system power transmission network, so that interaction and mutual influence of communication information in the power system power transmission network and physical information of the power system power transmission network are realized, and platform support is provided for research of the power system power transmission network safety attack and defense technology. By using the power transmission network security test system of the embodiment, security technologies such as access control, authentication encryption, intrusion detection, defense and the like in various information security fields can be verified, including but not limited to the following aspects: communication data interception and communication protocol intrusion, detection and defense; GPS and GIS (geographic information System for short) invasion, detection and defense simulation tests; carrying out weak account password intrusion, sniffer scanning intrusion, detection and firewall simulation software simulation test; virus infection invasion, detection, defense and recovery simulation tests; ARP (Address Resolution Protocol), IP spoofing intrusion, detection and defense test; DDoS (Distributed Denial of Service) attack, equipment instrument setting parameter intrusion, monitoring and defense simulation; injecting invasion, detection and recovery into a forged database; carrying out invasion, detection and alarm simulation test on the wireless sensor; monitoring, detecting, alarming and defending simulation of the invasion of the power monitoring system; wireless signal interference, detection and defense tests; network router intrusion, detection and defense real-time simulation; and (4) node damage intrusion, detection and analysis test.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A second embodiment of the present invention relates to a method for testing the safety of a power transmission network of an electric power system, the flow of which is shown in fig. 3, and the method includes:
step 301: and constructing a power system power transmission network real-time simulation subsystem, a power system power transmission network secondary equipment simulation subsystem and a power center simulation subsystem which are mutually connected.
Step 302: the simulation subsystem of the secondary equipment of the power transmission network of the power system simulates the secondary equipment of the power system, and the simulation subsystem of the power center monitors the power transmission network of the power system.
The power transmission network real-time simulation subsystem of the power system, the power transmission network secondary equipment simulation subsystem of the power system and the node equipment in the power center simulation subsystem correspond to each other. Because the node devices in the power transmission network real-time simulation subsystem, the power transmission network secondary device simulation subsystem and the power center simulation subsystem of the power system correspond to each other, the parallel/concurrent physical activities and information events in the system can be fused, interacted and influenced mutually.
Compared with the prior art, the embodiment of the invention constructs the power transmission network security verification platform of the power system by respectively constructing the power transmission network real-time simulation subsystem, the power transmission network secondary equipment simulation subsystem and the power center simulation subsystem of the power system and connecting the two subsystems in a communication way. And the power system power transmission network real-time simulation subsystem runs the power system power transmission network simulation model, the power system power transmission network secondary equipment simulation subsystem simulates the power system secondary equipment and the power center simulation subsystem is used for monitoring the power system power transmission network, so that interaction and mutual influence of communication information in the power system power transmission network and physical information of the power system power transmission network are realized, and platform support is provided for research of the power system power transmission network safety attack and defense technology. By providing the power transmission network safety testing system of the power system to simulate and analyze the attack and defense safety problems of the power transmission network, the method is not only beneficial to diagnosing the existing safety problems, but also can simulate and predict the safety state of the future power transmission network, and reduces the difficulty of applying calculation analysis. Moreover, effective simulation and verification tests can be realized on the safety problems of a series of large-scale complex models such as physical faults and safety of the power transmission network of the power system, network information and the like, scientific research and product research and development in the field of power transmission network safety of the power system are accelerated, and the method has wide application prospect.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the steps contain the same logical relationship, which is within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
It should be understood that this embodiment is a method example corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (9)
1. A power system power transmission network safety test system is characterized by comprising: the system comprises an electric power system transmission network real-time simulation subsystem, an electric power system transmission network secondary equipment simulation subsystem and an electric power center simulation subsystem;
the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the power center simulation subsystem are in communication connection;
an electric power system transmission network simulation model runs in the electric power system transmission network real-time simulation subsystem;
the power transmission network secondary equipment simulation subsystem of the power system is used for simulating secondary equipment of the power system;
the electric power center simulation subsystem is used for monitoring the electric power transmission network of the electric power system;
the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the node equipment in the power center simulation subsystem correspond to each other;
the power transmission network real-time simulation subsystem of the power system comprises:
the upper computer is used for generating a power transmission network simulation model of the power system;
the electric power system real-time simulation machine is in communication connection with the upper computer and is used for operating the electric power system power transmission network simulation model; and the number of the first and second groups,
and the display device is in communication connection with the real-time power system simulator and is used for displaying the running state of the power transmission network simulation model of the power system.
2. The power system power transmission network security test system of claim 1,
the power transmission network simulation model of the power system comprises: 220 kv transmission networks, 110 kv transmission networks, 35 kv transmission networks, substations and flexible dc transmission.
3. The power system power transmission network security test system of claim 1,
the power transmission network secondary equipment simulation subsystem of the power system comprises: the secondary equipment simulators and/or the secondary real equipment of the power transmission network;
and the secondary equipment simulator is used for simulating secondary equipment of the power transmission network.
4. The power system power transmission network security test system of claim 3,
the power transmission network secondary real device comprises: the device comprises relay protection equipment, a phasor measuring device, a remote terminal unit, a safety automatic device and a fault filtering device.
5. The power system power transmission network security test system of claim 1,
the real-time power system simulator is also used for operating a power system communication protocol.
6. The power system power transmission network safety test system of claim 5,
the power system communication protocol comprises one of the following protocols or any combination thereof:
IEC61850、TCP/IP、CAN、MODBUS、PROFIBUS。
7. the power system power transmission network security test system of claim 1,
the power transmission network safety test system of the power system further comprises: and the at least one alarm device is in communication connection with the real-time power system simulator.
8. The power system power transmission network safety test system of claim 7,
the alarm device comprises an alarm controller and a plurality of alarm units;
the alarm controller is used for controlling the alarm unit to give an alarm.
9. A method for testing the safety of a power transmission network of an electric power system is characterized by comprising the following steps:
constructing a power system power transmission network real-time simulation subsystem, a power system power transmission network secondary equipment simulation subsystem and a power center simulation subsystem which are mutually connected;
operating a power system power transmission network simulation model in the power system power transmission network real-time simulation subsystem, simulating secondary equipment of the power system by the power system power transmission network secondary equipment simulation subsystem, and monitoring the power system power transmission network by the power center simulation subsystem;
the power system power transmission network real-time simulation subsystem, the power system power transmission network secondary equipment simulation subsystem and the node equipment in the power center simulation subsystem correspond to each other;
the power transmission network real-time simulation subsystem of the power system comprises:
the upper computer is used for generating a power transmission network simulation model of the power system;
the electric power system real-time simulation machine is in communication connection with the upper computer and is used for operating the electric power system power transmission network simulation model; and the number of the first and second groups,
and the display device is in communication connection with the real-time power system simulator and is used for displaying the running state of the power transmission network simulation model of the power system.
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| CN107942724B (en) * | 2017-11-15 | 2020-06-02 | 华中科技大学 | A Simulation and Verification Platform for Information Security Protection of Industrial Critical Infrastructure |
| CN111970166B (en) * | 2020-07-31 | 2021-11-12 | 南京南瑞继保电气有限公司 | Test method, device, equipment, system and computer readable storage medium |
| CN112261016A (en) * | 2020-10-12 | 2021-01-22 | 国网甘肃省电力公司电力科学研究院 | Power grid protection method in attack scene |
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