【作者】 王勇；

【导师】 张振华；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2006， 硕士

【摘要】 随着WAMS平台工程应用中的逐渐成熟,实现基于WAMS的广域阻尼控制成为可能。但在实际开发中存在着广域阻尼控制器的时滞问题。论文讨论了时滞产生的原因及其对广域阻尼控制器性能产生的影响,介绍了时间序列模型及基于其的时滞补偿算法研究,包括模型结构的选择、参数在线估计算法、基于最小方差原理的自适应预测算法。并讨论了多步预测的改进算法以及为了提高精度而设计的一种由灰色模型和AR模型组合的模型。通过对南方电网实测数据的MATLAB仿真实验研究,得到基于各种模型的预测结果,经过对性能指标的比较研究,得到了比较理想的时滞补偿算法及效果。更多还原

【Abstract】 With the ripeness of WAMS platform in engineering application, it is possible torealize the wide-area damping control based on WAMS. But the problem is that timelagexists in actual development. The paper discusses the reason of timelag and its influence on the performance ofwide-area damping controller. It introduces the time series model and timelag offsetalgorithm based on it, including the choice of model, algorithm on-line for parametersestimation, adaptive prediction based on minimum square error principle, and discussesthe improved algorithm for multistep prediction and the integrated model comprised byGray model and AR model for improving accuracy. By the MATLAB simulation experiment on the data from Southward Network onthe spot, the various results are obtained. Through the comparative research, the idealtimelag offset algorithm and its effect are presented in this paper.更多还原