Coordinated Control of Natural and Sub-Synchronous Oscillations via HVDC Links in Great Britain Power System
Coordinated Control of Natural and Sub-Synchronous Oscillations via HVDC Links in Great Britain Power System
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DOI：
10.1109/td43745.2022.9816918
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发表时间：
2022-04
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通讯作者：
Yi Zhao;Yuqing Dong;Lin Zhu;Kaiqi Sun;Khaled M. Alshuaibi;Chengwen Zhang;Yilu Liu;Brian Graham;E. Farantatos;B. Marshall;Md Rahman;O. Adeuyi;S. Marshall;I. Cowan
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文献类型：
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作者：
Yi Zhao;Yuqing Dong;Lin Zhu;Kaiqi Sun;Khaled M. Alshuaibi;Chengwen Zhang;Yilu Liu;Brian Graham;E. Farantatos;B. Marshall;Md Rahman;O. Adeuyi;S. Marshall;I. Cowan
传统的电力振荡阻尼（POD）控制器已经被设计成有效地阻尼区域间低频振荡（LFO）或次同步振荡（SSO）。对于这些POD控制，基于模型的控制设计方法已被广泛实施与广域反馈信号的相量测量单元（PMU）。然而，实际的大型电力系统的模型精度很难得到保证，这将最终影响POD阻尼性能。本文提出了一种基于测量的高压直流输电系统POD设计方法，以实现LFO和SSO的协调控制。对于每种类型的振荡，添加带通滤波器以避免不同模式之间的相互作用。案例研究进行了英国36节点电力系统模型与多个高压直流输电线路在DIgSILENT/PowerFactory。仿真结果表明，所提出的POD是有效的阻尼区域间LFO和SSO的同时。
Conventional power oscillation damping (POD) controllers have been designed to be effective in damping either inter-area low-frequency oscillations (LFO) or sub-synchronous oscillations (SSO). For those POD controls, model-based control design method has been widely implemented with wide-area feedback signals from phasor measurement units (PMU). However, the model accuracy of a large realistic power system can hardly be guaranteed, which will finally impact the POD damping performance. In this paper, a measurement-based method is proposed for POD design using High Voltage Direct Current links (HVDC) to realize the coordinated control of both LFO and SSO. For each type of oscillations, a band-pass filter is added to avoid the interactions between different modes. Case studies are carried out on the Great Britain 36-bus power system model with multiple HVDC links in DIgSILENT/PowerFactory. Simulation results demonstrate that the proposed PODs are effective in damping inter-area LFO and SSO simultaneously.