scholarly journals Comprehensive Risk Assessment Method of Power Grid Based on Grey Relational Weight Game Theory

2020 ◽  
Vol 453 ◽  
pp. 012068
Author(s):  
Dan Lu ◽  
Changqing Xu ◽  
Linjuan Zhang ◽  
Lili Wang ◽  
Yanying Sun
Keyword(s):  
Risk Assessment ◽  
Game Theory ◽  
Power Grid ◽  
Assessment Method ◽  
Risk Assessment Method ◽  
Grey Relational ◽  
Grid Based

scholarly journals Research on risk assessment method of distribution network based on information physical fusion

2021 ◽  
Vol 248 ◽  
pp. 02055
Author(s):  
Wei Wei Xu ◽  
Feng Chen ◽  
Bao Zhang ◽  
Jun Hao Huang ◽  
Tao Yang
Keyword(s):  
Risk Assessment ◽  
Power Grid ◽  
Distribution Network ◽  
Assessment Method ◽  
Safe Operation ◽  
Information Level ◽  
Risk Assessment Method ◽  
Failure Scenario ◽  
Coupling Characteristics ◽  
Grid Based

With the improvement of information level, the information attack will cross the boundary of power grid information space and cause the disturbance of power grid physical system, which will form a cross-space chain fault and affect the safe operation of power grid. Based on this, this paper proposes a distribution network node risk assessment method based on information physical fusion. Firstly, the overall structure of the distribution network and the information physical coupling characteristics of the information physical fusion are studied. Then, the cross-space chain failure scenario of distribution network with information physical fusion is analyzed. Based on this, the risk assessment method is proposed. Finally, the effectiveness of the method is verified by a numerical example.

Study on a Quantitative Risk Assessment Method of Primary Equipments Based on Power Grid Safety Analysis

2014 ◽  
Vol 541-542 ◽  
pp. 863-868
Author(s):  
Kun Ling Deng ◽  
Dan Dan Li ◽  
Ying Wang ◽  
Xiao Lei Cheng ◽  
Ming Li ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Power Grid ◽  
Operation Mode ◽  
Safety Analysis ◽  
Assessment Method ◽  
Assessment Model ◽  
Quantitative Risk Assessment ◽  
Normal Operation ◽  
Risk Assessment Model ◽  
Risk Assessment Method

A quantitative risk assessment method of primary equipments based on power grid safety analysis is presented in this paper, and the risk assessment model of power grid primary equipments is established. On the basis of the calculated losses caused by various faults of N-1 and N-2 under the normal operation mode and the equipment maintenance mode, whether an equipment needs to be maintained is determined by comparing the size of the possible losses in two operation modes of a power grid. Then, the purpose of guiding the condition based maintenance of the power grid primary equipments is achieved. Finally, the presented risk assessment model of power grid primary equipments is applied to a certain practical power system.

Novel Indexes and Method for Power Grid Blackout Risk Assessment

2014 ◽  
Vol 556-562 ◽  
pp. 6665-6668
Author(s):  
Xiao Jun Lu ◽  
Kai Wen Zeng ◽  
Shi Wu Liao ◽  
Jin Yu Wen ◽  
En Lu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Risk Evaluation ◽  
Power Grid ◽  
Assessment Method ◽  
Actual System ◽  
Term Operation ◽  
Incident Investigation ◽  
Risk Assessment Method

A set of blackout risk assessment indexes is established according to Electricity Accident (Incident) Investigation Procedures of China Southern Power Grid (CSPG) (pilot) and Guide on Operational Risk Evaluation of CSPG, which can calculate risk values of electricity accidents (incidents). The calculation process is discussed in detail. Based on the proposed indexes and OPA blackout model, a blackout risk assessment method for power system is put forward, with which blackout risk for all 500kV buses in Guangdong Power Grid are evaluated. Weak areas in power system are identified and their inducements are analyzed. The identification results accord with actual system long-term operation experience, which verifies the correctness of the indexes and method.

scholarly journals Study of Lightning Damage Risk Assessment Method for Power Grid

2013 ◽  
Vol 05 (04) ◽  
pp. 1478-1483
Author(s):  
Xiaolan Li ◽  
Jiahong Chen ◽  
Chun Zhao ◽  
Shanqiang Gu
Keyword(s):  
Risk Assessment ◽  
Power Grid ◽  
Assessment Method ◽  
Risk Assessment Method ◽  
Damage Risk
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