Absrtact: Proposes a new voltage sag detection method based on an improved synchronous reference frame transform.
摘要：提出一种新的基于改进同步坐标变换的电压凹陷检测方法。
The direct current control based on synchronous reference frame coordinates is employed in DSTATCOM control system.
DSTATCOM的控制系统采用基于旋转坐标系的直接电流控制方法。
The state space model of the DVR with the FESS is established, the double vector control algorithm in dq synchronous reference frame is designed.
建立了基于FESS的DVR变换的数学模型，设计了同步旋转坐标系下的双矢量控制器。
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