Modeling adequacy for studying power oscillation damping in grids with wind farms and networked control systems (NCS)
Modeling adequacy for studying power oscillation damping in grids with wind farms and networked control systems (NCS)
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DOI：
10.1109/pesgm.2016.7741931
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发表时间：
2016-07
期刊：
影响因子：
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通讯作者：
Amirthagunaraj Yogarathinam;Jagdeep Kaur;N. Chaudhuri
中科院分区：
文献类型：
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作者：
Amirthagunaraj Yogarathinam;Jagdeep Kaur;N. Chaudhuri
网络延迟和数据丢失可能对网络物理系统（CPS）产生重大影响。本文以大规模部署分布式和网络化相量测量单元（pmu）和风能资源的电网为例。在一个具有151个动态状态的电力系统中，利用远程PMU信号在不同的数据丢失率、故障位置和不同程度的非线性下稳定机电振荡，进行了建模和仿真研究。为此，设计了一种集中式状态反馈控制器来调制双馈感应发电机（DFIG）风电场的电流参考值。研究了具有代表性的网格次暂态模型和基于dfig的WF平均模型的建模充分性，以及用Gilbert-Elliot模型和Bernoulli模型表示通信网络中的丢包。
Network delays and data-dropouts could have a significant impact on Cyber-Physical System (CPS). In this paper power grid with large-scale deployment of distributed and networked Phasor Measurement Units (PMUs) and wind energy resources is considered as an example of CPS. Modeling and simulation studies are done in a power system with 151 dynamic states for stabilizing electromechanical oscillations using remote PMU signals under different rates of data dropout, fault locations, and different degrees of nonlinearity. To that end a centralized state-feedback controller is designed to modulate the current references of Doubly Fed Induction Generator (DFIG)-based wind farm (WF). Modeling adequacy studies of a representative subtransient model of the grid and the averaged model of DFIG-based WF along with the representation of packet drop in the communication network by a Gilbert-Elliot model and Bernoulli model is performed.