而被称为“同步向量”的设备能以一秒30次或更快的速度采样电压和电流——向电力公司和系统操作员提供有关电网健康状况的信息更为精确。

Devices called synchrophasors can sample voltage and current 30 times a second or faster-giving utilities and system operators a far more accurate view of the health of the grid.

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在总体评估特高压同步电网安全稳定性的基础上，探讨进一步利用新技术提高系统安全稳定水平的可能性及效果。

Based on security and stability evaluation of UHV power grid, the possibility and purpose of the measures are discussed to increase the system security level.

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本文研究了一种采用数字化技术，实现与电网电压同步的基准正弦电路的原理，给出了电路关键参数的设计原则。

A reference sinusoidal circuit based on digital technique and synchronous with the line voltage is investigated. The design principle of the key circuit parameters is given.

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