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4. Review of risk analysis methods for failure scenario in power system under typhoon disasters

Author

Liu Shuqin, Yongchao Liang, Yong Huang, Hui Hou, Zhiwei Zhang, and Ruizeng Wei

Subjects
Risk analysis, Electric power system, Risk analysis (engineering), Computer science, Typhoon, Statistical model, Tropical cyclone, Fault (power engineering), Risk assessment, Wind speed
Abstract

Typhoon disasters may cause power outages in a large area of users. It is quite important to conduct power outage risk assessment in advance and make adequate preparations for emergency decision-making. Starting from the procedure of risk assessment under typhoon disasters: predicting wind speed, calculating wind-induced failure probability, generating fault set, and calculating failure consequences and risks, this paper summarized methods for wind field model, failure analysis methods, and the manifestations of failure consequences in risk assessment. Then we compared the pros and cons for these methods, respectively. The conclusion is that combining software to process higher-resolution wind speed data and considering random wind field, using data mining statistical models to compute and judge fault status and actively calculating pre-typhoon failure risk will become future trend.

Published
2021

12. The simulation of the active magnetic bearing-rotor system based on non-linear model

Author

Liu Shuqin, Guo Jiasheng, Yu Wentao, and Debin Li

Subjects
Engineering, Control theory, law, business.industry, Electrodynamic suspension, Levitation, Magnetic bearing, Waveform, Non linear model, Helicopter rotor, business, Magnetic levitation, law.invention
Abstract

At first, the system simulation was run in one degree of freedom based on the non-linear mathematic model of active magnetic bearing (AMB). That analyzes the effect of the controller parameters to the AMB performance and response waveforms of the axis in different parameters. Further, the motional waveform of the axis in two directions (vertical and horizontal) was simulated for the dynamic performance of the axis in the initial levitation.

Published
2004

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