广义Hamilton多机电力系统的广域时滞阻尼控制

发布时间：2018-05-26 00:50

本文选题：多机电力系统 + 广义Hamilton系统　；参考：《中国电机工程学报》2014年34期

【摘要】：随着跨区送电量的需求增加,大量功率需要进行远距离传输,因而抑制区域间的功率振荡仅靠局部反馈信号设计的控制器已难以保证整个系统的稳定运行。因此,含有时滞影响的广域控制器的分析和设计是近年来互联电网研究的热点之一。基于Hamilton系统理论,建立对应的广域测量电力系统的非线性时滞广义Hamilton模型,并以此模型为基础,给出相应的Lyapunov-Krasovskii泛函并推导出以矩阵不等式为形式的时滞依赖稳定性判据,注意到控制输入含有时滞信号的影响,设计出相应的广域阻尼控制器(wide-area damping controller,WADC),实现了含有时滞的广域反馈控制,并计算出能使闭环电力系统稳定的时滞裕度,权衡WADC的阻尼性能与时滞裕度之间的关系,从而给出对应的WADC控制参数。最后以16机68节点系统为例,用时域仿真的结果来说明所提时滞控制方法的有效性。
[Abstract]:With the increasing demand of cross-area power supply, a large amount of power needs to be transmitted over a long distance, so the controller designed to suppress the inter-region power oscillation only depends on local feedback signals is no longer able to ensure the stable operation of the whole system. Therefore, the analysis and design of wideband controller with time delay is one of the hot topics in the research of interconnected power network in recent years. Based on the theory of Hamilton system, the nonlinear time-delay generalized Hamilton model of wide-area measurement power system is established. Based on the model, the corresponding Lyapunov-Krasovskii functional is given and the delay-dependent stability criterion in the form of matrix inequality is derived. Taking note of the influence of time-delay signals on the input control, a corresponding wide-area damping controller is designed, which realizes the wide-area feedback control with time delay, and calculates the time-delay margin which can stabilize the closed-loop power system, The relationship between the damping performance of WADC and the delay margin is weighed, and the corresponding control parameters of WADC are given. Finally, taking the 16-machine 68 bus system as an example, the time-domain simulation results show the effectiveness of the proposed time-delay control method.
【作者单位】：上海交通大学电子信息与电气工程学院;
【基金】：国家自然科学基金项目(61374155,61074042) 博士点专项基金资助(20130073110030)~~
【分类号】：TM712

【参考文献】