State Estimation in Electric Power Systems

Research Progress of Complex Electric Power Systems: Graph Theory Approach

“…The connectivity analysis is the essence of the power system topology analysis, which is also playing the basic function in many kinds of advanced application software for power system analysis and calculation (Monticelli, 1999). The actual power network structures are shown by the result of the power system topology analysis processor, as the bus/branch model.…”

“…The actual power network structures are shown by the result of the power system topology analysis processor, as the bus/branch model. Hence, the aim of topology analysis is to map the bus-section/switching-device model in the physical equipments level into the bus/branch model for a number of advanced functions in Energy Management System (EMS) or Distribution Management System (DMS) (Monticelli, 1999), such as power flow calculation, state estimation, dispatcher training simulator (DTS) and so on.…”

Uncertainty modelling in power system state estimation

“…The dependence on the iteration index is implicitly assumed for Dx, J and Dz, where the current state vector is updated at each iteration until a stopping criterion is reached. Further details of the WLS formulation are available in [9][10][11][12][13][14][15].…”

LpState Estimators for Power Systems

“…This method recommended LAD as one of the robust estimators applied to the electric power system. According to [10], this application is encountered on issues with existence of leverage points, which makes unwanted bad data to be selected as good data. Leverage points are measurements that have significant influence on state estimation, regardless of the relatively low weights they have in a LAD objective function.…”