저주파 진동 감쇠를 위한 UPFG의 제어

Control of UPFG to Reduce Low Frequency Oscillation

  • 발행 : 1997.07.21

초록

A control method of UPFC (Unified Power Flow Controller) to reduce low frequency oscillation is proposed. UPFC is modelled by voltage source, which magnitude and phase angle can be controlled. Because there needs some time to change to desired value, d-axis voltage and Q-axis voltage is modeled by 1st order delay. LQG(Linear Quadratic Gaussian) is used. It is shown that low frequency can be damped by control of UPFC effectively.

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