Non-Divergent State Estimator

NDSE can serve as an offline supplement tool for power companies to improve the robustness level and accuracy level for their daily operations.

Background
Weighted Least Square (WLS) state estimation works well under normal system load levels and error-free measurements. However, measurements containing gross errors usually lead to a bias WLS solution or even unavailability of state estimation solution. NDSE is designed to work as a supplemental procedure to obtain a feasible solution when WLS state estimator becomes unavailable.

Main feature

1） NDSE is capable of obtaining a feasible voltage solution  

      under any circumtances.

2） Human involvement (like adding weights for specific

      measurements to obtain a solution, etc.) is not utilized.

3） The solution 100% depends on the given measurements,

      system topology and parameters.