This paper proposed a new method to locate the source of forced oscillation that involves resonance with natural oscillation modes. The new method is based on comparing the oscillation mode shape of the forced oscillation with that of the natural oscillation that the forced oscillation resonating with. The location that has the largest angle difference between the forced oscillation mode and the natural oscillation mode usually indicates the location of the driving force in forced oscillations. Some examples in actual U.S. EI system verified this approach.

中文翻译：

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基于模式形状分析的电力系统中涉及谐振的强迫振荡源

本文提出了一种新的定位强迫振荡源的方法，该方法涉及具有自然振荡模式的共振。该新方法基于将强制振荡的振荡模式形状与强制振荡产生共振的自然模式进行比较。在强制振荡模式和自然振荡模式之间具有最大角度差的位置通常表示驱动力在强制振荡中的位置。实际的美国EI系统中的一些示例验证了此方法。