A general fault location method in complex power grid based on wide-area traveling wave data acquisition

Fault location based on travelling wave identification using an adaptive extended Kalman filter

“…Likewise, discrete wavelet transformation is applied to the DC voltage and current signals in segmented HVDC transmission line in [6]. In [7], a general method based on phase-mode transformation and wavelet transformation is proposed for fault-location in the complex power grid. Although the WT method shows good results in determining the fault type and location, it exhibits some disadvantages, such as complicated computation, sensitivity to the noise level, and the dependency of its accuracy on the selection of mother wavelet.…”

Fault Model and Travelling Wave Matching Based Single Terminal Fault Location Algorithm for T-Connection Transmission Line: A Yunnan Power Grid Study

“…Reference [19] proposes a fault location method by deriving the phase difference without considering the influence of distributed capacitance. Furthermore, the method of fault location based on measured impedance, which is the most popular fault location method in practice, is susceptible to the effects of fault resistance [20], fault distance [21], and system structure [22]. To determine the location of the fault point, reference [23] utilizes voltage and current signals at the three measuring terminals of the T-connection transmission line to apply a fault location method based on the distributed parameter model of the line.…”

Speeded‐up robust features based single‐ended travelling wave fault location: a practical case study in Yunnan power grid of China

“…In [8], a wide-area-based fault location method for complex power grid was proposed and tested in the IEEE 30-bus system. Furthermore, the least number of fault location recorders in IEEE 30-bus and 57-bus test system were thoroughly discussed and studied in [9].…”