On-line Tracking of Synchronous Machine Parameters and Turns Ratio of Windings from Operating Data

目标是从系统识别的角度发展同步电机参数和定子和励磁绕组匝数比在线跟踪的方法学和分析工具的知识体系。本研究的意义在于，公用事业公司的工程师可以使用所提出的估计技术来识别电力系统规划和稳定性研究中使用的机器参数。此外，通过跟踪电机参数以及定子绕组和励磁绕组的匝数比，可以实时检测同步电机的早期故障。对即将发生的故障进行在线检测，将有利于有序地关闭发电机进行维修。此外，通过避免强制停电，保证了电力系统的控制。最后，本文的研究结果可为电力系统控制工程师准确预测和控制未来电控电力系统的动态性能提供参考。

The objective are to develop a body of knowledge in methodology and analytical tools for on-line tracking of the synchronous machine parameters and turns ratio of stator and field windings from the standpoint of system identification. The significance of this research is that engineers at utility companies can use the proposed estimation technique to identify the machine parameters for use in power systems planning and stability studies. Furthermore, by tracking the machine parameters and turns ratio of stator and field windings, the incipient faults of synchronous machines can be detected in real-time. The on-line detection of imminent failure will facilitate orderly shut-down of the generator for repair. In addition, by avoiding forced outage, the control power system is assured. Finally, the results of this research can be used by power system control engineers to accurately predict and control the dynamic performance of electronically controlled future power systems.