Status estimating method for dynamic process of electrical power system
A technology of state estimation and dynamic process, applied in the direction of system integration technology, information technology support system, measuring electricity, etc., can solve the problems of not many distribution points, unable to effectively monitor the power grid, and RTU measurement can not reflect the operating state of the power grid, etc., to achieve speed Fast, satisfying the effect of real-time monitoring
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[0022] The invention performs equivalent processing on the power grid according to the state of the power grid before the disturbance, and only relies on PMU measurement during the disturbance process, and at the same time tracks the PMU measurement change, provides a continuous section of the power grid change process, and realizes the state estimation of the dynamic process. The static state estimation method is used in the normal operation of the power grid, and the dynamic process state estimation is started after the disturbance occurs. Based on the static state estimation result before the grid disturbance, the load model and the generator model are introduced to perform equivalent processing on the power grid. In the process of grid disturbance, the synchronous phasor measurement unit PMU is used to measure the generator data, combined with the active and reactive zero injection pseudo measurement equations of the original grid nodes, to estimate the state of the grid nodes...
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