仿真计算表明，SVC与发电机励磁非线性状态PI协调控制器能有效地提高系统的暂态稳定性。
Simulation results show that nonlinear state PI SVC controller cooperating with the excitation system of generator can improve dynamic stability of power system effectively.
因此，本文主要研究了UPFC对电力系统暂态稳定性和暂态稳定预防控制的影响和作用。
So, the influence of UPFC in power system transient stability and transient stability preventive control has been researched in this paper.
算例系统的计算结果表明。所提出的模型和算法是正确而有效的，为研究FACTS的暂态稳定性和控制作用提供了有效工具。
Examples of test system show that the proposed model and method are correct. This provides an effective tool for studying the transient stability and control strategy of FACTS.
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