Power system cascading risk assessment based on complex network theory

2017 ◽  
Vol 482 ◽  
pp. 532-543 ◽  
Author(s):  
Zhuoyang Wang ◽  
David J. Hill ◽  
Guo Chen ◽  
Zhao Yang Dong
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Complex Network ◽  
Network Theory ◽  
Complex Network Theory

Vulnerability Assessment and Analysis of Active Distribution Network Structure

2014 ◽  
Vol 568-570 ◽  
pp. 1843-1849
Author(s):  
Da Chuan Liu ◽  
Jian Hua Zhang ◽  
Dan Wang ◽  
Hai Nan Li ◽  
Bo Zeng
Keyword(s):  
Power System ◽  
Complex Network ◽  
Network Structure ◽  
Network Theory ◽  
Large Scale ◽  
Fossil Fuels ◽  
Distribution Network ◽  
Complex Network Theory ◽  
Active Distribution Network ◽  
The Impact

Owing to more and more people concern about environment issues and reduction of fossil fuels, a growing number of distributed generations (DGs) are being interconnected to the power system. The active distribution network (ADN) provides an effective way to achieve the large scale connection and efficient utilization of them. This paper analyzes the vulnerability performance of active distribution network quantitatively and discusses the impact of DGs on the distribution network transmission efficiency under different grid structure through the application of complex network theory in power system. The example results show that meshed network structure can effectively promoting the consumption of DG and verify the feasibility of applying complex network theory to the distribution network for vulnerability analysis.

A Novel Transmission Line Vulnerability Evaluation Method Based on Complex Network Theory

2014 ◽  
Vol 494-495 ◽  
pp. 1866-1869
Author(s):  
Zhi Du ◽  
Gang Wang ◽  
Da Hai You ◽  
Wei Hua Chen ◽  
Ke Wang ◽  
...  
Keyword(s):  
Power System ◽  
Transmission Line ◽  
Complex Network ◽  
Network Theory ◽  
Evaluation Method ◽  
Capacity Utilization ◽  
Static Stability ◽  
Load Level ◽  
Utilization Rate ◽  
Complex Network Theory

As further development on the applications of CN (complex network) theory, evaluation of transmission line vulnerability requires the consideration of physical attributes of power system, instead of simply considering its topology features, which helps to deduce more precise predictions for the stability of power system. This paper introduces a novel and efficient evaluation method based on CN theory to evaluate influence of line faults to the static stability of power system, comprehensively considering the factors of system load level, power capacity utilization rate of transmission lines and worldlet features. The method is illustrated in the IEEE118 bus system.

Regional Vulnerability Analysis of Grid Structure

2013 ◽  
Vol 419 ◽  
pp. 877-882
Author(s):  
Xun Cheng Huang ◽  
Huan Qi ◽  
Xiao Pan Zhang ◽  
Li Fang Lu ◽  
Yang Yu Hu
Keyword(s):  
Power System ◽  
Complex Network ◽  
Network Theory ◽  
Power Grid ◽  
Maximum Load ◽  
Central China ◽  
Cascading Failure ◽  
Grid Structure ◽  
Complex Network Theory ◽  
Regional Vulnerability

Cascading failure of network features in power system is analyzed in this paper using complex network theory and method, and Central China power grid are analyzed in detail on the three kinds of attack forms (maximum load, the most generous attack and random attack) of regional vulnerability. It provides technical means for the prevention of cascading failure .

Risk Assessment of Transmission Lines Based on Complex Network and Fuzzy Probability

2012 ◽  
Vol 229-231 ◽  
pp. 2680-2683
Author(s):  
Peng Liu ◽  
Qing Chao Zhang ◽  
Xiao Tian Zhang
Keyword(s):  
Risk Assessment ◽  
Complex Network ◽  
Transmission Lines ◽  
Network Theory ◽  
Power Lines ◽  
Fuzzy Mathematics ◽  
Membership Degree ◽  
Fuzzy Probability ◽  
Fault Line ◽  
Complex Network Theory

This paper proposed an innovative way based on the complex network theory and fuzzy mathematics. A new index is introduced to evaluate the performance of power lines, which is more consistent with the physical characteristics of the actual power system. Fuzzy mathematics is proposed to the risk assessment in order to describe the uncertainty of the grid. This method considers both the membership degree of lines and the probability of failure. The result not only can determine the influence of the line, but also analyze the sphere of the fault line in power grid. This method is illustrated in the IEEE-39-bus, which demonstrates its effectiveness.

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