適用于多端柔性直流輸電系統(tǒng)的快速電壓裕度控制策略
[Abstract]:In ord to solve that problem of slow direct current voltage control caused by the switching of the constant active power control mode and the constant direct current voltage control mode in the conventional voltage margin controller, a fast voltage margin control strategy is proposed. by setting the trade-off coefficient related to the DC voltage deviation to adjust the control mode of the margin controller, the switching link of the control mode is before the PI controller, so that the response speed and the adjusting speed of the controller are accelerated when the DC voltage deviation of the system is large, And is more suitable for a multi-terminal flexible direct current power transmission system with higher direct current voltage requirement. Finally, the 3-terminal flexible DC transmission system based on the modular multilevel converter is simulated and verified by MATLAB/ SIMULINK. The results show that the control strategy can more quickly and effectively stabilize the DC voltage of the system compared with the traditional voltage margin control.
【作者單位】: 青島科技大學(xué)自動(dòng)化與電子工程學(xué)院;許繼電氣股份有限公司;
【基金】:國家自然科學(xué)基金項(xiàng)目(61401244)~~
【分類號(hào)】:TM721.1
【參考文獻(xiàn)】
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