New Out of Step Blocking Algorithm for Detecting Fast Power Swing Frequencies
2006
This paper will describe a new algorithm for detecting the out of step and power swing condition. This algorithm, which is based on continuous impedance monitoring, doesn't require a blinder or concentric characteristics. Therefore no settings are needed. The algorithm continuously monitors the speed and the shape of the impedance trajectory and will immediately see the start of a power swing cycle or an out of step condition. This detection also enables the algorithm to detect fast swing cycles with swing frequencies up to 7 Hz. Solution to three pole fault detection is by a ripple on space vector
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