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With the increasing size and complexity of the power grid, wide-area measurement system (WAMS) has been studied and implemented more widely. As a pioneering WAMS deployed at the distribution level, the frequency monitoring network FNET/GridEye has been providing independent observation of dynamic performance of U.S. and other worldwide power grids continuously since 2004. By utilizing GPS-time-synchronized...
Understanding power system dynamics is essential for online stability assessment and control applications. Global positioning system-synchronised phasor measurement units and frequency disturbance recorders (FDRs) make power system dynamics visible and deliver an accurate picture of the overall operation condition to system operators. However, in the actual field implementations, some measurement...
In conventional power grid phasor measurements, the transformers must be physically connected to lines or buses being measured for acquiring the input voltage signal. This paper presents an innovative contactless phasor measurement device, the wireless frequency disturbance recorder (wireless FDR), to realize contactless power grid phasor measurements based on the electrical field generated by high-voltage...
To study and gain a better understanding of the power system dynamics, the concept of building a frequency monitoring network (FNET) was proposed in 2000 [1] and has been realized in 2003. The FNET system consists of many high dynamic precision frequency and phasor estimation devices, also known as frequency disturbance recorders (FDR). These FDRs can be used at any 110 V or 220 V wall outlet and...
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