结构紧急控制范式
Structural Emergency Control Paradigm
AI总结：
本文提出一种新的结构紧急控制方法，通过离散重定位平衡点及其稳定性区域，使系统从故障清除状态连续吸引回原平衡点，无需连续测量或负载削减，适用于大规模电网。
摘要：
电力系统通常在供需平衡的稳定状态下运行。面对紧急情况，负载削减是常用方法，但会导致服务中断和经济损失，且协调性差。本文提出一种新型结构紧急控制范式，通过离散重定位平衡点及其稳定性区域，使系统从故障清除状态连续吸引回原平衡点，无需连续测量或负载削减。该控制方法通过求解线性和凸优化问题设计，可能适用于大规模电网。最终，该紧急控制方案可通过现有电网中的传输设施实现。
英文摘要：
Power grids normally operate at some stable operating condition where power supply and demand are balanced. In response to emergency situations, load shedding is a prevailing approach where local protective devices are activated to cut a suitable amount of load to quickly rebalance the supply demand and hopefully stabilize the system. This traditional emergency control results in interrupted service with severe economic damage to customers. Also, such control is usually less effective due to the lack of coordination among protective devices. In this paper, we propose a novel structural emergency control to render post-fault dynamics from the critical/emergency fault-cleared state to the stable equilibrium point. This is a new control paradigm that does not rely on any continuous measurement or load shedding, as in the classical setup. Instead, the grid is made stable by discretely relocating the equilibrium point and its stability region such that the system is consecutively attracted from the fault-cleared state back to the original equilibrium point. The proposed control is designed by solving linear and convex optimization problems, making it possibly scalable to large-scale power grids. Finally, this emergency control scheme can be implemented by exploiting transmission facilities available on the existing grids.
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