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1.4.4 SE Solution Quality (Accuracy)
ОглавлениеState estimator availability requirements are complemented by solution‐quality requirements to ensure that operators are given accurate information allowing them to be fully aware of the system situation in a timely manner.
Operators report that they can detect and identify bad analog measurements and remove them from the state estimator measurement set. Users quantified the real/reactive power mismatch tolerance criteria for their internal/observable systems is in the 0.05 MW (per unit) – 170 MW real power mismatch tolerance range and a 0.001 Mvar (per unit) – 500 Mvar reactive power mismatch tolerance range. The average real and reactive mismatch tolerance criteria reported were 35 MW and 69.5 Mvar, respectively.
Macedo [23] states that state estimator MVA mismatch should be less than 10 MVA. He does not distinguish between internal and external systems.