High-speed and large-capacity optical fiber communication plays an important role in power system communication.With the development of optical fiber communication network tapping technology,optical fiber communication security faces new challenges.This paper analyzes the vulnerability of optical fiber communication network,introduces the fiber quantum key distribution technology,and summarizes the features of three QKD networks.Finally,the paper proposes the prospect of fiber QKD in power system and future research directions.
High-speed and large-capacity optical fiber communication plays an important role in power system communication.With the development of optical fiber communication network tapping technology,optical fiber communication security faces new challenges.This paper analyzes the vulnerability of optical fiber communication network,introduces the fiber quantum key distribution technology,and summarizes the features of three QKD networks.Finally,the paper proposes the prospect of fiber QKD in power system and future research directions.
In this paper, we mainly explore the application of fiber Quantum Key Distribution (QKD) technology in Smart Grid. First, the vulnerability of optical fiber communication networks is analyzed. Second, an overview of fiber quantum key distribution technology is given. Third, typical fiber QKD use cases in Smart Grid are proposed. Finally, future research directions of fiber QKD for power systems are discussed. Compared to other classical cryptography technology, the application of fiber QKD in Smart Grid has unique advantages.
With the development of optical fiber communication network eavesdropping technology, its security is facing new challenges in recent years.Some of the optical fiber communication eavesdropping technology cannot be detected with its hidden features, so it is necessary to study optical fiber tapping technology and its defensive measures.This paper summarized the cases in which the international optical fiber communication network had been eavesdropped in recent years, and introduced the intrusion and non-intrusive optical fiber eavesdropping methods.Based on the analysis of the general misunderstanding of optical fiber communication network security, the effective measures to defense fiber eavesdropping are put forward.
The fifth-generation mobile communication (5G) has the advantages of high bandwidth, low time delay and low power consumption, and it can play an important role in all aspects of power transmission, substation, power distribution and electricity consumption, effectively making up for the disadvantages of traditional optical fiber communication and profoundly transforming the power communication network. However, the information security problems brought by the application of 5G technology are gradually becoming prominent. Based on this, a quantum key distribution strategy based on the quality of service (QoS) is proposed to improve the confidentiality of 5G electric power private network application scheme. Finally, the feasibility of quantum communication application in power dispatching system is verified. The test results show that the service quality of 5G private network meets the communication requirements of power grid services, the actual transmission delay of the power grid simulation dispatching data is about 1s, and there is no packet loss.
Power distribution operation involves the supervision and control of the operating states of a large distribution power grid. This technology includes several features, e.g. an abundant amount of application nodes, diversity of communication channels, etc. To accelerate the construction of State Grid-electric Internet of things and to guarantee the security of power grids data network and to consider the feature of power grids, a synthetic key management system is proposed. In the first section of this paper, from the perspective of maturity and practicality of related technology, the feasibility of combining quantum private communication and automatic power grid key management system is analyzed and demonstrated. In the next section, a key-management method, which is designed to combine quantum private communication technology and interaction with encryption devices, is designed and implemented. In the concluding section, to guarantee the integrity and atomicity in key storage processes and to achieve the quantum key storage, rollback mechanism of large-capacity quantum key storage is studied and discussed.
Quantum cryptography communication technology is based on information security and it can achieve unconditional security, having been applied in many fields. Therefore, the author carries out study of the applications of the quantum cryptography communication technology. The author firstly outlines the principle of the technology, analyzes the network architecture of the technology and discusses the implementation of Quantum Key Distribution (QKD). Secondly, the author expounds the existing application scenarios and application methods, and finally prospects the future research development and the problems in engineering applications to be solved.
With the development of smart grids, the demand for cybersecurity is increasing rapidly. Quantum Key Distribution (QKD), which can theoretically achieve secure information transmission, has the potential to enhance the security of power communication. To overcome the structural limitations and resource constraints of current QKD-based communication schemes, this paper proposes a multi-resource hybrid QKD-based communication scheme for power grids. This scheme meets the diverse secure communication needs of power systems through the coordinated utilization of multiple QKD resources. First, the advantages and disadvantages of satellite, fiber, and wireless QKD methods, along with their respective application scenarios, are analyzed. Then, considering the synergistic effects of hybrid QKD and the varied demands of power businesses, a quantum resource deployment optimization model is established. This model aims to minimize the system’s information risk index and is reformulated as a solvable mixed-integer linear programming (MILP) problem. Finally, the effectiveness of the proposed scheme is validated using a modified IEEE RTS-79 test system and two real-world power communication systems. By analyzing on sensitivity, adaptability, scalability and IoT applications of various QKD methods, this study provides valuable insights for the large-scale deployment of quantum-secure power communication networks in the future.