Lp Quasi Norm State Estimator for Power Systems

This paper proposes an Lp (0<p<1) quasi norm state estimator for power system static estimation. Compared with the existing L, and L2 estimators, proposed can suppress bad data more effectively. The robustness of is discussed, analysis shows that its ability to increases as $p$ decreases. Moreover, algorithm suggested solve non-convex estimation problem. By introducing a relaxation factor in mathematical model estimator, prevent solution from converging local optimum much possible. Finally, simulations on 3-bus DC system, IEEE 14-bus 300-bus systems well 1204-bus provincial verify high computation efficiency estimator.