Locating sources of forced oscillations using transfer functions
Locating sources of forced oscillations using transfer functions
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DOI：
10.1109/peci.2017.7935743
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发表时间：
2017-02
期刊：
影响因子：
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通讯作者：
N. Zhou;M. Ghorbaniparvar;S. Akhlaghi
中科院分区：
文献类型：
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作者：
N. Zhou;M. Ghorbaniparvar;S. Akhlaghi
本文提出了一种利用相量测量单元（PMU）数据定位受迫振荡源的传递函数方法。强迫振荡预示着有问题的控制和设备故障。它们也引发了电网运营商对稳定性的担忧。为了减轻强迫振荡的负面影响，及时定位其来源是至关重要的。本文提出了一种利用PMU数据在母线频率之间建立传递函数来定位振荡源的方法。通过分析和仿真研究表明，可以利用传递函数的幅值响应和相位响应来确定振荡源相对于测点的相对位置。该方法不依赖于动态模型，易于实现和应用。
This paper proposes a transfer function method to locate sources of forced oscillations using phasor measurement unit (PMU) data. Forced oscillations herald problematic controls and device failure. They also incur stability concerns of power grid operators. To mitigate the negative impacts of forced oscillations, it is essential to locate their sources in time. This paper proposes a method to locate oscillation sources by building transfer functions between bus frequencies using PMU data. It is shown through analytical and simulation studies that the relative location of an oscillation source with respect to measurement points can be determined using the magnitude responses and phase responses of transfer functions. The proposed method does not heavily rely on a dynamic model and therefore is easy to implement and apply.