Pmu of introducing a large grid state measurement information estimating method
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State estimation method of the present invention provides a large power is introduced PMU measurements information, comprising the steps of: determining power system observability algebraic; observability Analyzing information PMU measurements; large grid state estimation. State estimation method of the present invention provides a large power introduction information PMU measurements, estimation algorithm based on the rapid decomposition, the effective use of information PMU measurements, increase the measurement redundancy, improving the estimation accuracy; and to ensure that the calculation speed and calculation efficiency, power system to meet the requirements of real-time online.