scholarly journals Day-ahead stochastic optimal dispatch of LCC-HVDC interconnected power system considering flexibility improvement measures of sending system

2022 ◽  
Vol 138 ◽  
pp. 107937
Author(s):  
Haibo Zhang ◽  
Jie Shen ◽  
Guorong Wang
Keyword(s):  
Power System ◽  
Optimal Dispatch ◽  
Interconnected Power System ◽  
Improvement Measures

scholarly journals Risk Assessment of Multi-area Interconnected Power System under Gas Station Network Attacked

2020 ◽  
Vol 53 (2) ◽  
pp. 1801-1806
Author(s):  
Xue Li ◽  
Zhourong Zhang ◽  
Dajun Du ◽  
Jing Dong ◽  
Yulong Wang
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Station Network ◽  
Interconnected Power System ◽  
Gas Station

scholarly journals Enhancing Oscillation Damping in an Interconnected Power System with Integrated Wind Farms Using Unified Power Flow Controller

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 322 ◽  
Author(s):  
Ping He ◽  
Seyed Arefifar ◽  
Congshan Li ◽  
Fushuan Wen ◽  
Yuqi Ji ◽  
...  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Time Domain ◽  
Power Flow ◽  
Unified Power Flow Controller ◽  
Time Domain Simulation ◽  
Interconnected Power System ◽  
Dynamic Time ◽  
Oscillation Damping ◽  
Power Flow Controller

The well-developed unified power flow controller (UPFC) has demonstrated its capability in providing voltage support and improving power system stability. The objective of this paper is to demonstrate the capability of the UPFC in mitigating oscillations in a wind farm integrated power system by employing eigenvalue analysis and dynamic time-domain simulation approaches. For this purpose, a power oscillation damping controller (PODC) of the UPFC is designed for damping oscillations caused by disturbances in a given interconnected power system, including the change in tie-line power, the changes of wind power outputs, and others. Simulations are carried out for two sample power systems, i.e., a four-machine system and an eight-machine system, for demonstration. Numerous eigenvalue analysis and dynamic time-domain simulation results confirm that the UPFC equipped with the designed PODC can effectively suppress oscillations of power systems under various disturbance scenarios.

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