Location of low-frequency oscillation sources using improved D-S evidence theory

• Evidence-theory AI algorithm is introduced to locate the oscillation source. This synthesizes three traditional methods of oscillating source location. paper proposes a multi-oscillation positioning strategy. presents method for localizing sources based on data fusion Dempster–Shafer (D-S) evidence theory. study each bus from system collected by phasor measurement units (PMUs). Then D-S theory employed establish mass function and trust degree bus. Three are used provide calculation results structuring algorithm. Finally, decision localization made according synthesis value. The higher value, possibility an WECC179 power applied verification, compared with above methods. It proved that can significantly improve accuracy locating negatively damped oscillations forced oscillations, effectively reduce misjudgment. Meanwhile, this also effective complex dual sources.