scholarly journals Intelligent data attacks against power systems using incomplete network information: a review

2018 ◽  
Vol 6 (4) ◽  
pp. 630-641 ◽  
Author(s):  
Yufei SONG ◽  
Xuan LIU ◽  
Zhiyi LI ◽  
Mohammad SHAHIDEHPOUR ◽  
Zuyi LI
Keyword(s):  
Power Systems ◽  
Network Information ◽  
Incomplete Network Information

scholarly journals Application of Network Information Communication Technology in Power System

2018 ◽  
Vol 2 (6) ◽  
Author(s):  
Chuanpeng Liu
Keyword(s):  
Power Systems ◽  
Power System ◽  
Information Transmission ◽  
Communication Technology ◽  
Information Communication Technology ◽  
Operational Efficiency ◽  
Power Grids ◽  
Information Communication ◽  
Efficient Operation ◽  
Network Information

Abstract: Network information communication technology in power systems is the key to ensuring the safe and efficient operation of power grids. The network information communication technology itself has advantages in automation operation and information transmission, thus is widely applied to the power system. In the case of ensuring that the power system is compatible with the network information communication technology, the control of the power system can be strengthened, and the operational efficiency of the power system can be improved. This paper mainly analyzes the specific application of network information communication technology in power system.

scholarly journals Analysis of Power Network Behavior Security Analysis Technology

2018 ◽  
Vol 246 ◽  
pp. 03017
Author(s):  
Kai Fan ◽  
Hang Yang ◽  
Aidong Xu
Keyword(s):  
Information Technology ◽  
Information System ◽  
Information Systems ◽  
Information Security ◽  
Power Systems ◽  
Power System ◽  
Rapid Development ◽  
Social Needs ◽  
Power Network ◽  
Network Information

Nowadays, with the rapid development of science and technology, network information technology is widely applied to various enterprise departments. In order to meet the increasing social needs, power companies have also built power network information systems. The establishment of the network information system has been put into use, which has greatly improved the efficiency of the power enterprise. However, the security risks of network information systems have followed. Once the network is damaged by the attack, it will cause the power system to fail to operate normally, which will inevitably cause significant losses. Power system information security issues threaten the security of the power system and the entire power industry. Studying the information security of power systems, how to protect the power information network from threats, how to ensure the safe and stable supply of electricity to the whole society, and striving to develop a safe and effective power network information system is an important issue facing the development of information technology.

scholarly journals Auction-Based Secondary Relay Selection on Overlay Spectrum Sharing in Hybrid Satellite–Terrestrial Sensor Networks

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 5039
Author(s):  
Xiaokai Zhang ◽  
Bangning Zhang ◽  
Kang An ◽  
Zhuyun Chen ◽  
Daoxing Guo
Keyword(s):  
Sensor Networks ◽  
Spectrum Sharing ◽  
Relay Selection ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
Auction Mechanism ◽  
Network Information ◽  
Incomplete Network Information ◽  
Time Division ◽  
Secondary Networks

In this paper, we investigate the auction-based secondary relay selection on overlay spectrum sharing in hybrid satellite–terrestrial sensor networks (HSTSNs), where both the decode-and-forward (DF) and amplify-and-forward (AF) relay protocols are analyzed based on time division multiple access (TDMA). As both the primary and secondary networks are rational, honest but with incomplete network information, they prefer to obtain maximum possibility payoffs by the cooperation between the primary and secondary networks, and the competition among secondary networks. Hence, Vickery auction is introduced to achieve the effective and efficient secondary relay selection by distinct sub-time slot allocation for one shot in terms of a distributed manner. Finally, numerical simulations are provided to validate the effectiveness of the auction mechanism on cooperative spectrum sharing in HSTSNs for secondary relay selection. Besides, the effect of key factors on the performance of the auction mechanism are analyzed in details.

scholarly journals Operational Reliability Assessment of an Interconnected Power System Based on an Online Updating External Network Equivalent Model with Boundary PMU

Electronics ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 49 ◽  
Author(s):  
Dabo Zhang ◽  
Shuai Lian ◽  
Weiqing Tao ◽  
Jinsong Liu ◽  
Chen Fang
Keyword(s):  
Power Systems ◽  
Power System ◽  
Power Grid ◽  
Measurement Data ◽  
Operational Reliability ◽  
Equivalent Model ◽  
Interconnected Power System ◽  
Network Information ◽  
Interconnected Power Systems ◽  
Internal Network

Information between interconnected power systems is difficult to share in real time, due to trade secrets and technical limitations. The regional power grid cannot timely detect the impact of changes in the operation mode of the external power grid on the regional reliability, due to faults, load fluctuations, power generation plan adjustments, and other reasons. How to evaluate the reliability of a regional power system under the conditions of information isolation is a difficult problem for the security of interconnected power systems. Aiming at this problem, an operational reliability evaluation method for an interconnected power system is proposed herein, which does not depend on external network information directly, but only uses boundary phasor measurement unit (PMU) measurement data and internal network information. A static equivalent model with sensitivity consistency was used to simplify the external network to ensure the accuracy of the reliability calculation of interconnected power systems. The boundary PMU measurement data were used to update the external network equivalent model online. The algorithm flow of the operation reliability assessment for the interconnected power grid is given. The results of an example based on the IEEE-RTS-96 test system show that the proposed method can track the equivalent parameters of the external network without depending on the actual topological information, and calculate the reliability index of the internal network accurately.

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