Probabilistic multi-stability operational boundaries in power systems with high penetration of power electronics
International Journal of Electrical Power & Energy Systems(2022)
摘要
•A probabilistic multi-stability operational boundary assessment based on frequency, large-disturbance rotor angle, small-disturbance rotor angle, and voltage stability for varying renewable energy source penetration levels and loading conditions was investigated and established.•Establishing system’s operational boundary from a singular stability type is dangerous as the established operational boundary from each stability type is very different.•The established multi-stability operational boundary is heavily influenced by frequency and large-signal disturbance rotor angle stability.•A significant improvement in the system’s operational stability boundaries occur when the VSC-HVDC’s ability to independently control active and reactive power via VDC-Q control is fully utilized.
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关键词
Frequency stability,Large-disturbance rotor angle stability,Power electronics,Small-disturbance rotor angle stability,Uncertainty,Voltage stability
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