Experimental Study on Power System Stabilization by UPFC with Linearizing Control of Power Swing

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  • UPFCを用いた電力動揺線形化に基づく系統安定化制御の実験による検討
  • UPFC オ モチイタ デンリョク ドウヨウ センケイカ ニ モトヅク ケイトウ アンテイカ セイギョ ノ ジッケン ニ ヨル ケントウ

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With the advancement of power electronics technologies, it has become feasible to control the line power flow directly and quickly. In the circumstances, the direct power control of generator in order to linearize the power swing property has been developed. The controller is robust in the sense that the control parameters do not have to be adjusted even if the operating point of the power system is changed. The effectiveness has been confirmed by a series of simulation studies. In this paper, the feasibility of control strategy is confirmed by several experimental results using a 10 kVA model power transmission system. First, the control scheme to adjust the generator power to the specified signal is implemented in the experimental system, which is extended to the control strategy for the power swing linearization. The capability of generator power direct control by Unified Power Flow Controller (UPFC) is confirmed by the experiments in which the generator power is controlled to follow the specified sinusoidal waveform. Some experimental results demonstrate the significant effect on the power system stabilization and the robustness of the proposed controller of power swing.


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