Mixed Integer Second Order Cone Relaxation with Dynamic Simulation for Proper Power System Islanding Operations

Power system islanding operation acts as an important attractive corrective measure that is widely studied. However, a proper splitting strategy for the islanding operation should satisfy both steady-state and transient stability constraints. As a result, an ac power flow-based optimization model with dynamic simulation is proposed to obtain a proper splitting strategy. Specifically, the method includes two steps: 1) optimization of a splitting strategy satisfying the steady-state constraints and 2) transient stability evaluation of the strategy by dynamic simulation. Furthermore, the optimization and evaluation steps are iterated until finding a splitting strategy that satisfies both the steady-state constraints and the transient stability constraints. Finally, the effectiveness of the proposed method is verified on the WSCC 9-bus and the IEEE RTS 24-bus test systems.