Abstract
The contradiction between a high penetration of renewable energy sources and the safe and stable operation of the power system has become increasingly prominent. In order to improve the safe and stable operation of power system, this paper proposes a dynamic reactive power configuration method of high penetration renewable energy grid based on transient stability probability assessment. Firstly, the dynamic reactive power allocation is realized by finding the weakness of high penetration renewable energy grid based on transient stability probability assessment; Then, the dynamic reactive power capacity allocation is realized by multi-scenario comprehensive assessment of high penetration renewable energy grid; Finally, choose the IEEE 39-bus system as example to verify feasibility of the method. The research proves that the method can effectively improve the security and stability of power grid, reduce the risk of large-scale off-grid of high penetration renewable energy grid, and guide the safe and stable operation of renewable energy base.
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