A method for estimating the difference between the state of the whole anti-measured amount pmu

The present invention proposes a method of estimating the difference between a state for the whole anti PMU measurements, comprising the steps of: network topology model of the power system and network parameters are initialized, and the measured value update switch PMU measured values; topology and contraction measurement match; observation area may be identified node; measured equivalently converted; and establishing a state estimation model solving. Robust state estimation method for the whole of PMU measurements of the present invention significantly improve the state of the system is estimated convergence rate, pass rate, calculate the frequency, which greatly reduce the maintenance workload state estimation system to achieve rapid network-aware, comprehensive and accurate perception perception of the foundation. Robust state estimation method of the present invention in computational precision, speed and convergence rates were significantly improved compared to existing methods.