This letter proposes a novel technique for estimating the rate of change of frequency (RoCoF) of the center of inertia (CoI) in power systems. To offer a holistic picture of the system's frequency response, the proposed technique requires local frequency at the point of measurement, only. This enables the local estimation of active power deficit following a loss of generation (LoG) event, thus facilitating fast and effective remedial action. Extensive simulations conducted verify the effectiveness and applicability of the proposed technique.

中文翻译：

---

基于局部频率的惯性中心频率变化率估计

这封信提出了一种估算电力系统惯性中心 (CoI) 频率变化率 (RoCoF) 的新技术。为了提供系统频率响应的整体图，建议的技术仅需要测量点的本地频率。这使得能够在发电损失 (LoG) 事件后对有功功率赤字进行本地估计，从而促进快速有效的补救措施。进行的大量模拟验证了所提出技术的有效性和适用性。